fix: certificate button only on paid Purchase Invoices

The certificate is issued when the tax is withheld, i.e. on payment; show the button once the submitted invoice's status is Paid.
feat: Withholding Tax Certificate button on Purchase Invoice
2026-09-22 03:58:04 +00:00 · 2026-09-22 03:29:54 +00:00 · 2026-09-22 03:29:54 +00:00 · 2026-09-22 03:29:39 +00:00 · 2026-09-18 03:52:35 +00:00 · 2026-09-17 10:30:43 +00:00
29 changed files with 1940 additions and 87 deletions
@@ -20,6 +20,17 @@ file overrides the upstream Thai for the standard labels the print formats show.
 print formats embed Sarabun (`public/fonts`, OFL) so PDFs render Thai on servers
 without a Thai system font. Switch a user or the print language to `th` to use it.

+### Withholding tax certificate
+
+A paid Purchase Invoice with *Apply Tax Withholding Amount* gets a **Withholding Tax Certificate**
+button that downloads the Revenue Department's Sec. 50 bis form (หนังสือรับรองการหักภาษี ณ ที่จ่าย,
+two copies) as a PDF: the *Withholding Tax Certificate* print format lays the invoice's data
+over the official form (`public/images`). The row the payment is reported on comes from
+*Type of Income Paid* on the Tax Withholding Category (set for the shipped categories; pick it
+for your own), and the ภ.ง.ด. return is ticked from the Supplier's type: ภ.ง.ด.53 for juristic
+payees, ภ.ง.ด.1ก / 2 / 3 by income type for individuals. เล่มที่ / เลขที่ (certificate book
+numbers) and ลำดับที่ (the line in the return) are left for the accountant.
+
 ### Contributing

 This app uses `pre-commit` for code formatting and linting. Please [install pre-commit](https://pre-commit.com/#installation) and enable it for this repository:
@@ -0,0 +1,91 @@
+import frappe
+from frappe.utils.nestedset import rebuild_tree
+
+from default_thai_company.tax_withholding import company_ready, get_or_create_account, thai_companies
+
+# Asset Category -> fixed asset account. Names follow ERPNext's Standard chart so
+# setup-wizard companies reuse their accounts; the rest are created under the
+# same "Fixed Assets" group. Depreciation accounts are left to the Company
+# defaults (Asset falls back to them), so one change there covers every category.
+FIXED_ASSET_ACCOUNTS = {
+	"Land": "Land",
+	"Buildings": "Buildings",
+	"Plant and Machinery": "Plants and Machineries",
+	"Vehicles": "Vehicles",
+	"Furniture and Fixtures": "Furnitures and Fixtures",
+	"Office Equipment": "Office Equipments",
+	"Computers and Electronics": "Electronic Equipments",
+	"Software": "Softwares",
+	"Intangible Assets": "Intangible Assets",
+}
+
+FIXED_ASSET_GROUPS = ("Fixed Assets",)
+
+
+def fixed_asset_account(company, category):
+	return get_or_create_account(
+		company, FIXED_ASSET_ACCOUNTS[category], "Asset", "Fixed Asset", FIXED_ASSET_GROUPS
+	)
+
+
+def link_company(category, company):
+	"""Append the company's fixed asset account row to the category if missing."""
+	if any(row.company_name == company for row in category.accounts):
+		return False
+	category.append(
+		"accounts",
+		{"company_name": company, "fixed_asset_account": fixed_asset_account(company, category.name)},
+	)
+	return True
+
+
+def prepare_fixture_accounts(doc, method=None):
+	"""Asset Category fixtures ship without `accounts` (company-specific).
+
+	Same contract as the Tax Withholding Category fixtures: fixture import
+	re-inserts the doc on every migrate, so carry over the rows already on this
+	site, then link every Thai company. Mandatory is relaxed for sites without a
+	Thai company yet; `setup_company` links them later.
+	"""
+	if doc.name not in FIXED_ASSET_ACCOUNTS:
+		return
+
+	doc.flags.ignore_mandatory = True
+
+	if not doc.accounts and frappe.db.exists(doc.doctype, doc.name):
+		for row in frappe.get_all(
+			"Asset Category Account",
+			filters={"parent": doc.name, "parenttype": doc.doctype},
+			fields=[
+				"company_name",
+				"fixed_asset_account",
+				"accumulated_depreciation_account",
+				"depreciation_expense_account",
+				"capital_work_in_progress_account",
+			],
+			order_by="idx",
+		):
+			doc.append("accounts", row)
+
+	for company in thai_companies():
+		link_company(doc, company)
+
+
+def setup_company(doc, method=None):
+	"""Company.on_update: link a Thai company on every default Asset Category."""
+	if not company_ready(doc):
+		return
+
+	for name in FIXED_ASSET_ACCOUNTS:
+		if not frappe.db.exists("Asset Category", name):
+			continue
+		category = frappe.get_doc("Asset Category", name)
+		if link_company(category, doc.name):
+			category.save(ignore_permissions=True)
+
+
+def rebuild_locations():
+	"""after_migrate: fixture import re-inserts the Location tree nodes (fresh
+	lft/rgt), which strands locations users added beneath them; rebuild."""
+	if frappe.db.exists("Location", "All Locations"):
+		rebuild_tree("Location")
@@ -0,0 +1,73 @@
+{
+ "custom_fields": [
+  {
+   "_assign": null,
+   "_comments": null,
+   "_liked_by": null,
+   "_user_tags": null,
+   "allow_in_quick_entry": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "collapsible_depends_on": null,
+   "columns": 0,
+   "creation": "2026-09-22 09:00:00.000000",
+   "default": null,
+   "depends_on": null,
+   "description": "Row of the withholding tax certificate (50 Tawi) the payment is reported on; Other prints the category name in row 6.",
+   "docstatus": 0,
+   "dt": "Tax Withholding Category",
+   "fetch_from": null,
+   "fetch_if_empty": 0,
+   "fieldname": "income_type",
+   "fieldtype": "Select",
+   "hidden": 0,
+   "hide_border": 0,
+   "hide_days": 0,
+   "hide_seconds": 0,
+   "idx": 2,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_preview": 0,
+   "in_standard_filter": 0,
+   "insert_after": "category_name",
+   "is_system_generated": 0,
+   "is_virtual": 0,
+   "label": "Type of Income Paid",
+   "length": 0,
+   "link_filters": null,
+   "mandatory_depends_on": null,
+   "modified": "2026-09-22 09:00:00.000000",
+   "modified_by": "Administrator",
+   "module": null,
+   "name": "Tax Withholding Category-income_type",
+   "no_copy": 0,
+   "non_negative": 0,
+   "options": "\nSalary and Wages - Sec. 40(1)\nFees and Commissions - Sec. 40(2)\nRoyalties - Sec. 40(3)\nInterest - Sec. 40(4)(a)\nDividends - Sec. 40(4)(b)\nSec. 3 Tera (Services, Rent, Contract Work etc.)\nOther",
+   "owner": "Administrator",
+   "permlevel": 0,
+   "placeholder": null,
+   "precision": null,
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "print_width": null,
+   "read_only": 0,
+   "read_only_depends_on": null,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "show_dashboard": 0,
+   "sort_options": 0,
+   "translatable": 0,
+   "unique": 0,
+   "width": null
+  }
+ ],
+ "custom_perms": [],
+ "doctype": "Tax Withholding Category",
+ "links": [],
+ "property_setters": [],
+ "sync_on_migrate": 1
+}
@@ -0,0 +1,237 @@
+[
+ {
+  "accounts": [],
+  "asset_category_name": "Land",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Land",
+  "non_depreciable_category": 1
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Buildings",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Buildings",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 240
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Buildings",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Plant and Machinery",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Plant and Machinery",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Plant and Machinery",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Vehicles",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Vehicles",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Vehicles",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Furniture and Fixtures",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Furniture and Fixtures",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Furniture and Fixtures",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Office Equipment",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Office Equipment",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Office Equipment",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Computers and Electronics",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Computers and Electronics",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Computers and Electronics",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Software",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Software",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 60
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Software",
+  "non_depreciable_category": 0
+ },
+ {
+  "accounts": [],
+  "asset_category_name": "Intangible Assets",
+  "docstatus": 0,
+  "doctype": "Asset Category",
+  "enable_cwip_accounting": 0,
+  "finance_books": [
+   {
+    "daily_prorata_based": 1,
+    "depreciation_method": "Straight Line",
+    "docstatus": 0,
+    "doctype": "Asset Finance Book",
+    "finance_book": null,
+    "frequency_of_depreciation": 1,
+    "idx": 1,
+    "parent": "Intangible Assets",
+    "parentfield": "finance_books",
+    "parenttype": "Asset Category",
+    "rate_of_depreciation": 0.0,
+    "salvage_value_percentage": 0.0,
+    "shift_based": 0,
+    "total_number_of_depreciations": 120
+   }
+  ],
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Intangible Assets",
+  "non_depreciable_category": 0
+ }
+]
@@ -0,0 +1,106 @@
+[
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 270000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Personal and Family Allowances"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Child and Dependant Allowances"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 100000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Life and Health Insurance"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 25000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Family Insurance"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 500000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Retirement Savings and Investments"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 300000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thai ESG Fund"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 600000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thai ESGX Fund"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 10500.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Social Security Fund"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 100000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Housing"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Donations"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 10000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Political Party Donation"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 190000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Income Exemptions"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Category",
+  "is_active": 1,
+  "max_amount": 250000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Government Stimulus Measures"
+ }
+]
@@ -0,0 +1,299 @@
+[
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Personal and Family Allowances",
+  "is_active": 1,
+  "max_amount": 60000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Spouse allowance (spouse without income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Personal and Family Allowances",
+  "is_active": 1,
+  "max_amount": 90000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Adopted child allowance (30,000 per child, max 3)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Personal and Family Allowances",
+  "is_active": 1,
+  "max_amount": 60000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Parent allowance (30,000 per parent, max 2)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Personal and Family Allowances",
+  "is_active": 1,
+  "max_amount": 60000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Spouse's parent allowance (30,000 per parent, max 2)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Child and Dependant Allowances",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Child allowance (30,000 per child)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Child and Dependant Allowances",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Child allowance - 2nd child onward born 2018 or later (60,000 per child)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Child and Dependant Allowances",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Disabled or incapacitated dependant care (60,000 per person)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Child and Dependant Allowances",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Prenatal care and childbirth expenses (60,000 per pregnancy)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Life and Health Insurance",
+  "is_active": 1,
+  "max_amount": 100000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Life insurance premium (policy term 10 years or more)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Life and Health Insurance",
+  "is_active": 1,
+  "max_amount": 25000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Health insurance premium (self)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Family Insurance",
+  "is_active": 1,
+  "max_amount": 10000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Spouse life insurance premium (spouse without income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Family Insurance",
+  "is_active": 1,
+  "max_amount": 15000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Parents' health insurance premium"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 500000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Provident fund contribution (15% of wages)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 500000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Government Pension Fund contribution (30% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 500000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Private Teacher Aid Fund contribution (15% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 500000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Retirement Mutual Fund - RMF (30% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 200000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Pension life insurance premium (15% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 1,
+  "max_amount": 30000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "National Savings Fund contribution"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Retirement Savings and Investments",
+  "is_active": 0,
+  "max_amount": 200000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Super Savings Fund - SSF (30% of income, tax years 2020-2024)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Thai ESG Fund",
+  "is_active": 1,
+  "max_amount": 300000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thai ESG fund (30% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Thai ESGX Fund",
+  "is_active": 1,
+  "max_amount": 300000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thai ESGX fund - new units (30% of income)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Thai ESGX Fund",
+  "is_active": 1,
+  "max_amount": 300000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thai ESGX fund - LTF switch (500,000 spread over tax years 2025-2029)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Social Security Fund",
+  "is_active": 1,
+  "max_amount": 10500.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Social Security contribution - Sec. 33 employee"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Social Security Fund",
+  "is_active": 1,
+  "max_amount": 5184.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Social Security contribution - Sec. 39 voluntary"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Social Security Fund",
+  "is_active": 1,
+  "max_amount": 3600.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Social Security contribution - Sec. 40 informal worker"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Housing",
+  "is_active": 1,
+  "max_amount": 100000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Home loan interest"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Donations",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "General donations (10% of income after allowances)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Donations",
+  "is_active": 1,
+  "max_amount": 0.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Education, sports, hospital and social development donations (2x, 10% of income after allowances)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Political Party Donation",
+  "is_active": 1,
+  "max_amount": 10000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Political party donation"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Income Exemptions",
+  "is_active": 1,
+  "max_amount": 190000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Taxpayer aged 65 or over - income exemption"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Income Exemptions",
+  "is_active": 1,
+  "max_amount": 190000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Disabled taxpayer under 65 - income exemption"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Government Stimulus Measures",
+  "is_active": 1,
+  "max_amount": 50000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Easy E-Receipt (e-Tax Invoice / e-Receipt purchases)"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Employee Tax Exemption Sub Category",
+  "exemption_category": "Government Stimulus Measures",
+  "is_active": 1,
+  "max_amount": 200000.0,
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Solar rooftop installation (tax years 2025-2027)"
+ }
+]
@@ -0,0 +1,113 @@
+[
+ {
+  "allow_tax_exemption": 1,
+  "currency": "THB",
+  "disabled": 0,
+  "docstatus": 1,
+  "doctype": "Income Tax Slab",
+  "effective_from": "2017-01-01",
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Thailand Personal Income Tax",
+  "other_taxes_and_charges": [],
+  "slabs": [
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 0.0,
+    "idx": 1,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 0.0,
+    "to_amount": 150000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 150001.0,
+    "idx": 2,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 5.0,
+    "to_amount": 300000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 300001.0,
+    "idx": 3,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 10.0,
+    "to_amount": 500000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 500001.0,
+    "idx": 4,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 15.0,
+    "to_amount": 750000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 750001.0,
+    "idx": 5,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 20.0,
+    "to_amount": 1000000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 1000001.0,
+    "idx": 6,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 25.0,
+    "to_amount": 2000000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 2000001.0,
+    "idx": 7,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 30.0,
+    "to_amount": 5000000.0
+   },
+   {
+    "condition": "",
+    "docstatus": 1,
+    "doctype": "Taxable Salary Slab",
+    "from_amount": 5000001.0,
+    "idx": 8,
+    "parent": "Thailand Personal Income Tax",
+    "parentfield": "slabs",
+    "parenttype": "Income Tax Slab",
+    "percent_deduction": 35.0,
+    "to_amount": 0.0
+   }
+  ],
+  "standard_tax_exemption_amount": 160000.0,
+  "tax_relief_limit": 0.0
+ }
+]
@@ -0,0 +1,42 @@
+[
+ {
+  "docstatus": 0,
+  "doctype": "Location",
+  "is_container": 0,
+  "is_group": 1,
+  "location_name": "All Locations",
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "All Locations",
+  "parent_location": null
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Location",
+  "is_container": 0,
+  "is_group": 0,
+  "location_name": "Head Office",
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Head Office",
+  "parent_location": "All Locations"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Location",
+  "is_container": 0,
+  "is_group": 0,
+  "location_name": "Branch Office",
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Branch Office",
+  "parent_location": "All Locations"
+ },
+ {
+  "docstatus": 0,
+  "doctype": "Location",
+  "is_container": 0,
+  "is_group": 0,
+  "location_name": "Warehouse",
+  "modified": "2026-09-16 09:00:00.000000",
+  "name": "Warehouse",
+  "parent_location": "All Locations"
+ }
+]
@@ -5,7 +5,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Fees and Commissions - Sec. 40(2)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Commission",
  "rates": [
   {
@@ -31,7 +32,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Royalties - Sec. 40(3)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Royalty",
  "rates": [
   {
@@ -57,7 +59,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Interest - Sec. 40(4)(a)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Interest (Company)",
  "rates": [
   {
@@ -83,7 +86,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Interest - Sec. 40(4)(a)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 15% - Interest (Individual)",
  "rates": [
   {
@@ -109,7 +113,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Dividends - Sec. 40(4)(b)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 10% - Dividend",
  "rates": [
   {
@@ -135,7 +140,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 5% - Rent",
  "rates": [
   {
@@ -161,7 +167,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Ship Rental",
  "rates": [
   {
@@ -187,7 +194,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Professional Fee",
  "rates": [
   {
@@ -213,7 +221,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Contract Work",
  "rates": [
   {
@@ -239,7 +248,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Service",
  "rates": [
   {
@@ -265,7 +275,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 3% - Sales Promotion",
  "rates": [
   {
@@ -291,7 +302,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 2% - Advertising",
  "rates": [
   {
@@ -317,7 +329,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Transportation",
  "rates": [
   {
@@ -343,7 +356,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Non-Life Insurance",
  "rates": [
   {
@@ -369,7 +383,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 5% - Prize",
  "rates": [
   {
@@ -395,7 +410,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 5% - Public Entertainer",
  "rates": [
   {
@@ -421,7 +437,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 0.75% - Agricultural Produce",
  "rates": [
   {
@@ -447,7 +464,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Sec. 3 Tera (Services, Rent, Contract Work etc.)",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Aquatic Animals",
  "rates": [
   {
@@ -473,7 +491,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Other",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 1% - Immovable Property (Company)",
  "rates": [
   {
@@ -499,7 +518,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Other",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 15% - Non-Resident Individual",
  "rates": [
   {
@@ -525,7 +545,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Other",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 15% - Foreign Company",
  "rates": [
   {
@@ -551,7 +572,8 @@
  "consider_party_ledger_amount": 0,
  "docstatus": 0,
  "doctype": "Tax Withholding Category",
-  "modified": "2026-09-11 09:00:00.000000",
+  "income_type": "Other",
+  "modified": "2026-09-22 12:00:00.000000",
  "name": "WHT 10% - Foreign Company Dividend",
  "rates": [
   {
@@ -43,7 +43,10 @@ required_apps = ["erpnext"]
 # page_js = {"page" : "public/js/file.js"}

 # include js in doctype views
-doctype_js = {"Payment Entry": "public/js/payment_entry.js"}
+doctype_js = {
+	"Payment Entry": "public/js/payment_entry.js",
+	"Purchase Invoice": "public/js/purchase_invoice.js",
+}
 # doctype_list_js = {"doctype" : "public/js/doctype_list.js"}
 # doctype_tree_js = {"doctype" : "public/js/doctype_tree.js"}
 # doctype_calendar_js = {"doctype" : "public/js/doctype_calendar.js"}
@@ -79,6 +82,7 @@ jinja = {
 		"default_thai_company.utils.get_letter_head_company",
 		"default_thai_company.utils.get_company_bank_account",
 		"default_thai_company.utils.get_in_words",
+		"default_thai_company.tax_withholding.get_withholding_certificate",
 	],
 }

@@ -93,17 +97,65 @@ fixtures = [
 	{
 		"doctype": "Print Format",
 		"filters": [
-			["name", "in", ["Default Standard Sales Invoice", "Default Standard Tax Invoice/Receipt"]]
+			[
+				"name",
+				"in",
+				[
+					"Default Standard Sales Invoice",
+					"Default Standard Tax Invoice/Receipt",
+					"Default Standard Quotation",
+					"Withholding Tax Certificate",
+				],
+			]
 		],
 	},
 	{"doctype": "Tax Withholding Category", "filters": [["name", "like", "WHT %"]]},
+	{
+		"doctype": "Location",
+		"filters": [["name", "in", ["All Locations", "Head Office", "Branch Office", "Warehouse"]]],
+	},
+	{
+		"doctype": "Asset Category",
+		"filters": [
+			[
+				"name",
+				"in",
+				[
+					"Land",
+					"Buildings",
+					"Plant and Machinery",
+					"Vehicles",
+					"Furniture and Fixtures",
+					"Office Equipment",
+					"Computers and Electronics",
+					"Software",
+					"Intangible Assets",
+				],
+			]
+		],
+	},
+	# HRMS doctypes; skipped by sync_fixtures on sites without hrms
+	{"doctype": "Employee Tax Exemption Category"},
+	{"doctype": "Employee Tax Exemption Sub Category"},
+	{"doctype": "Income Tax Slab", "filters": [["name", "=", "Thailand Personal Income Tax"]]},
 ]

 # Installation
 # ------------

-# before_install = "default_thai_company.install.before_install"
-# after_install = "default_thai_company.install.after_install"
+# Fixtures are synced before Custom Fields on install and migrate; the Tax Withholding
+# Category fixtures carry values for the app's Custom Fields, so create those first.
+before_install = "default_thai_company.tax_withholding.sync_category_customizations"
+before_migrate = "default_thai_company.tax_withholding.sync_category_customizations"
+# Fixtures are synced before this runs; VAT schemes and Shipping Rules for companies
+# that already exist.
+after_install = [
+	"default_thai_company.vat.setup_companies",
+	"default_thai_company.shipping.setup_companies",
+	"default_thai_company.payroll.setup_companies",
+]
+# Fixture import re-inserts the Location tree; restore lft/rgt for user-added nodes.
+after_migrate = "default_thai_company.assets.rebuild_locations"

 # Uninstallation
 # ------------
@@ -117,7 +169,8 @@ fixtures = [
 # Name of the app being installed is passed as an argument

 # before_app_install = "default_thai_company.utils.before_app_install"
-# after_app_install = "default_thai_company.utils.after_app_install"
+# Payroll Period for companies created before hrms was installed.
+after_app_install = "default_thai_company.payroll.after_app_install"

 # Integration Cleanup
 # -------------------
@@ -152,6 +205,7 @@ fixtures = [
 override_doctype_class = {
 	"Sales Invoice": "default_thai_company.tax_withholding.ThaiSalesInvoice",
 	"Payment Entry": "default_thai_company.tax_withholding.ThaiPaymentEntry",
+	"Shipping Rule": "default_thai_company.shipping.ThaiShippingRule",
 }

 # Document Events
@@ -166,8 +220,17 @@ doc_events = {
 	"Tax Withholding Category": {
 		"before_import": "default_thai_company.tax_withholding.prepare_fixture_accounts",
 	},
+	"Asset Category": {
+		"before_import": "default_thai_company.assets.prepare_fixture_accounts",
+	},
 	"Company": {
-		"on_update": "default_thai_company.tax_withholding.setup_company",
+		"on_update": [
+			"default_thai_company.tax_withholding.setup_company",
+			"default_thai_company.vat.setup_company",
+			"default_thai_company.assets.setup_company",
+			"default_thai_company.shipping.setup_company",
+			"default_thai_company.payroll.setup_company",
+		],
 	},
 	"Payment Entry": {
 		"validate": "default_thai_company.tax_withholding.set_customer_withholding",
@@ -177,23 +240,10 @@ doc_events = {
 # Scheduled Tasks
 # ---------------

-# scheduler_events = {
-# 	"all": [
-# 		"default_thai_company.tasks.all"
-# 	],
-# 	"daily": [
-# 		"default_thai_company.tasks.daily"
-# 	],
-# 	"hourly": [
-# 		"default_thai_company.tasks.hourly"
-# 	],
-# 	"weekly": [
-# 		"default_thai_company.tasks.weekly"
-# 	],
-# 	"monthly": [
-# 		"default_thai_company.tasks.monthly"
-# 	],
-# }
+# Payroll Period is per calendar year; roll the default over on 1 January.
+scheduler_events = {
+	"daily": ["default_thai_company.payroll.setup_companies"],
+}

 # Testing
 # -------
@@ -4,3 +4,7 @@

 [post_model_sync]
 # Patches added in this section will be executed after doctypes are migrated
+default_thai_company.patches.create_vat_accounts
+default_thai_company.patches.create_vat_templates
+default_thai_company.patches.create_shipping_rules
+default_thai_company.patches.create_payroll_periods
@@ -0,0 +1,5 @@
+from default_thai_company.payroll import setup_companies
+
+
+def execute():
+	setup_companies()
@@ -0,0 +1,5 @@
+from default_thai_company.shipping import setup_companies
+
+
+def execute():
+	setup_companies()
@@ -0,0 +1,8 @@
+from default_thai_company.tax_withholding import ensure_company_accounts, thai_companies
+
+
+def execute():
+	"""Output VAT / Input VAT were added to COMPANY_ACCOUNTS; Company.on_update
+	only runs on save, so give existing Thai companies the pair."""
+	for company in thai_companies():
+		ensure_company_accounts(company)
@@ -0,0 +1,5 @@
+from default_thai_company.vat import setup_companies
+
+
+def execute():
+	setup_companies()
@@ -0,0 +1,62 @@
+import frappe
+from frappe.utils import getdate
+
+from default_thai_company.tax_withholding import thai_companies
+
+# Thai personal income tax (P.N.D.1/91) is assessed per calendar year whatever
+# the company's fiscal year, so the Payroll Period is January to December.
+# Payroll Period is named by prompt (site-wide unique) but bound to one company,
+# so each Thai company gets "<year> - <abbr>", like the Shipping Rule.
+
+
+def hrms_installed():
+	return "hrms" in frappe.get_installed_apps()
+
+
+def payroll_period_name(company, year):
+	abbr = frappe.get_cached_value("Company", company, "abbr")
+	return f"{year} - {abbr}"
+
+
+def ensure_payroll_period(company, year):
+	"""Calendar-year Payroll Period for `company`. No-op when any period of the
+	company touches the year: an existing one covers it, or the company runs its
+	own scheme and a second period would only fail the overlap check."""
+	start, end = f"{year}-01-01", f"{year}-12-31"
+	if frappe.db.exists(
+		"Payroll Period", {"company": company, "start_date": ("<=", end), "end_date": (">=", start)}
+	):
+		return
+	frappe.get_doc(
+		{
+			"doctype": "Payroll Period",
+			"name": payroll_period_name(company, year),
+			"company": company,
+			"start_date": start,
+			"end_date": end,
+		}
+	).insert(ignore_permissions=True)
+
+
+def setup_company(doc, method=None):
+	"""Company.on_update: this year's Payroll Period for a Thai company."""
+	if doc.country == "Thailand" and hrms_installed():
+		ensure_payroll_period(doc.name, getdate().year)
+
+
+def setup_companies():
+	"""after_install, the daily scheduler, and the create_payroll_periods patch:
+	this year's Payroll Period for every Thai company. The scheduler rolls the
+	default over on 1 January."""
+	if not hrms_installed():
+		return
+	year = getdate().year
+	for company in thai_companies():
+		ensure_payroll_period(company, year)
+
+
+def after_app_install(app_name):
+	"""Payroll Period only exists once hrms is installed; catch companies that
+	were created before it."""
+	if app_name == "hrms":
+		setup_companies()
@@ -0,0 +1,23 @@
+frappe.ui.form.on("Purchase Invoice", {
+	refresh(frm) {
+		// The certificate is issued once the tax has been withheld, i.e. on payment.
+		if (!frm.doc.apply_tds || frm.doc.docstatus !== 1 || frm.doc.status !== "Paid") return;
+		// The Withholding Tax Certificate print format renders the Revenue Department's
+		// Sec. 50 bis form (fixtures/print_format.json) as a PDF.
+		frm.add_custom_button(__("Withholding Tax Certificate"), () => {
+			const params = new URLSearchParams({
+				doctype: frm.doctype,
+				name: frm.docname,
+				format: "Withholding Tax Certificate",
+				no_letterhead: 1,
+				_lang: "th",
+			});
+			const w = window.open(
+				frappe.urllib.get_full_url(
+					`/api/method/frappe.utils.print_format.download_pdf?${params}`
+				)
+			);
+			if (!w) frappe.msgprint(__("Please enable pop-ups"));
+		});
+	},
+});
@@ -0,0 +1,66 @@
+import erpnext
+import frappe
+from erpnext.accounts.doctype.shipping_rule.shipping_rule import ShippingRule
+
+from default_thai_company.tax_withholding import company_ready, get_or_create_account, thai_companies
+
+# Shipping Rule is named by its label (site-wide unique) but bound to one company,
+# so each Thai company gets "<LABEL> - <abbr>", the way ERPNext names accounts and
+# tax templates. The label doubles as the charge description on the transaction.
+LABEL = "Shipping Charges"
+
+# Shipping billed to customers is revenue; the courier's bill stays an expense.
+SHIPPING_ACCOUNT = "Shipping Charges"
+SHIPPING_ACCOUNT_GROUPS = ("Direct Income", "Income")
+
+
+class ThaiShippingRule(ShippingRule):
+	def add_shipping_rule_to_tax_table(self, doc, shipping_amount):
+		"""A Fixed rule without an amount only seeds the charge row; the amount is
+		entered on the transaction. ERPNext re-applies the rule on every
+		recalculation, which would otherwise reset the row to 0."""
+		manual = self.calculate_based_on == "Fixed" and not self.shipping_amount
+		entered = [(row, row.tax_amount) for row in doc.get("taxes")] if manual else ()
+		super().add_shipping_rule_to_tax_table(doc, shipping_amount)
+		for row, amount in entered:
+			row.tax_amount = amount
+
+
+def shipping_rule_name(company):
+	abbr = frappe.get_cached_value("Company", company, "abbr")
+	return f"{LABEL} - {abbr}"
+
+
+def ensure_shipping_rule(company):
+	"""Selling Shipping Rule for `company` with the amount entered per
+	transaction (see ThaiShippingRule). No-op when the rule exists."""
+	name = shipping_rule_name(company)
+	if frappe.db.exists("Shipping Rule", name):
+		return
+	frappe.get_doc(
+		{
+			"doctype": "Shipping Rule",
+			"label": name,
+			"company": company,
+			"shipping_rule_type": "Selling",
+			"calculate_based_on": "Fixed",
+			"shipping_amount": 0,
+			"account": get_or_create_account(
+				company, SHIPPING_ACCOUNT, "Income", "Income Account", SHIPPING_ACCOUNT_GROUPS
+			),
+			"cost_center": erpnext.get_default_cost_center(company),
+		}
+	).insert(ignore_permissions=True)
+
+
+def setup_company(doc, method=None):
+	"""Company.on_update: default Shipping Rule for a Thai company."""
+	if company_ready(doc):
+		ensure_shipping_rule(doc.name)
+
+
+def setup_companies():
+	"""after_install and the create_shipping_rules patch: companies that exist
+	before this code did never pass through `setup_company`."""
+	for company in thai_companies():
+		ensure_shipping_rule(company)
@@ -1,3 +1,6 @@
+import json
+import os
+
 import erpnext
 import frappe
 from erpnext.accounts.doctype.payment_entry.payment_entry import PaymentEntry
@@ -8,14 +11,29 @@ from erpnext.accounts.doctype.tax_withholding_category.tax_withholding_category
 	normal_round,
 )
 from frappe import _
-from frappe.utils import cint, flt
+from frappe.contacts.doctype.address.address import get_default_address
+from frappe.modules.utils import sync_customizations_for_doctype
+from frappe.utils import cint, flt, fmt_money, getdate

 from default_thai_company.utils import money_in_words

-# Liability: tax we withhold from suppliers and remit on P.N.D.3/53 (linked on every category).
-# Asset: tax customers withhold from us, creditable against corporate income tax.
+# Tax accounts every Thai company gets (Company.on_update, fixture import, and the
+# create_vat_accounts patch for companies that predate the VAT pair).
+# Withholding: liability = tax we withhold from suppliers, remitted on P.N.D.3/53
+# (linked on every category); asset = tax customers withhold from us, creditable
+# against corporate income tax.
+# VAT: output (ภาษีขาย) collected on sales is payable, input (ภาษีซื้อ) paid on
+# purchases is recoverable; the P.P.30 return nets the two, so they are kept apart.
 LIABILITY_ACCOUNT = "Withholding Tax Payable"
 ASSET_ACCOUNT = "Withholding Tax Receivable"
+OUTPUT_VAT_ACCOUNT = "Output VAT"
+INPUT_VAT_ACCOUNT = "Input VAT"
+COMPANY_ACCOUNTS = (
+	(LIABILITY_ACCOUNT, "Liability"),
+	(ASSET_ACCOUNT, "Asset"),
+	(OUTPUT_VAT_ACCOUNT, "Liability"),
+	(INPUT_VAT_ACCOUNT, "Asset"),
+)

 # Preferred parent groups by root type; first match wins, else the root account.
 PARENT_GROUPS = {
@@ -30,7 +48,9 @@ def thai_companies():
 	return frappe.get_all("Company", filters={"country": "Thailand"}, pluck="name")


-def get_or_create_account(company, account_name, root_type):
+def get_or_create_account(company, account_name, root_type, account_type="Tax", parent_groups=None):
+	"""Leaf account `account_name` for `company`, created under the first existing
+	group in `parent_groups` (default: PARENT_GROUPS[root_type]), else the root."""
 	name = frappe.db.get_value(
 		"Account", {"company": company, "account_name": account_name, "is_group": 0, "root_type": root_type}
 	)
@@ -42,17 +62,19 @@ def get_or_create_account(company, account_name, root_type):
 			"doctype": "Account",
 			"company": company,
 			"account_name": account_name,
-			"parent_account": find_parent_group(company, root_type),
+			"parent_account": find_parent_group(
+				company, root_type, parent_groups or PARENT_GROUPS[root_type]
+			),
 			"root_type": root_type,
-			"account_type": "Tax",
+			"account_type": account_type,
 			"is_group": 0,
 		}
 	).insert(ignore_permissions=True)
 	return account.name


-def find_parent_group(company, root_type):
-	for account_name in PARENT_GROUPS[root_type]:
+def find_parent_group(company, root_type, group_names):
+	for account_name in group_names:
 		parent = frappe.db.get_value(
 			"Account",
 			{"company": company, "account_name": account_name, "is_group": 1, "root_type": root_type},
@@ -67,9 +89,10 @@ def find_parent_group(company, root_type):


 def ensure_company_accounts(company):
-	"""Create both withholding accounts for `company`; return the liability account name."""
-	get_or_create_account(company, ASSET_ACCOUNT, "Asset")
-	return get_or_create_account(company, LIABILITY_ACCOUNT, "Liability")
+	"""Create every account in COMPANY_ACCOUNTS for `company`; return the
+	withholding liability account name (the one Tax Withholding Categories link)."""
+	accounts = {name: get_or_create_account(company, name, root_type) for name, root_type in COMPANY_ACCOUNTS}
+	return accounts[LIABILITY_ACCOUNT]


 def link_company(category, company, account):
@@ -104,9 +127,25 @@ def prepare_fixture_accounts(doc, method=None):
 			link_company(doc, company, ensure_company_accounts(company))


+def sync_category_customizations():
+	"""before_install / before_migrate: create the Tax Withholding Category Custom
+	Fields (custom/tax_withholding_category.json) ahead of the fixture import.
+	Frappe syncs fixtures before customizations, and a fixture value for a field
+	that does not exist yet is dropped."""
+	folder = frappe.get_app_path("default_thai_company", "default_thai_company", "custom")
+	filename = "tax_withholding_category.json"
+	with open(os.path.join(folder, filename)) as f:
+		sync_customizations_for_doctype(json.load(f), folder, filename)
+
+
+def company_ready(doc):
+	"""A Thai company whose chart of accounts exists."""
+	return doc.country == "Thailand" and frappe.db.exists("Account", {"company": doc.name})
+
+
 def setup_company(doc, method=None):
-	"""Company.on_update: create withholding accounts and link every WHT category."""
-	if doc.country != "Thailand" or not frappe.db.exists("Account", {"company": doc.name}):
+	"""Company.on_update: create the tax accounts and link every WHT category."""
+	if not company_ready(doc):
 		return

 	account = ensure_company_accounts(doc.name)
@@ -351,3 +390,128 @@ def get_customer_withholding(doc):
 	else:
 		description = _("Withholding tax deducted by customer")
 	return flt(total, precision), description
+
+
+# Withholding tax certificate (หนังสือรับรองการหักภาษี ณ ที่จ่าย, Sec. 50 bis): the income
+# row the payment is reported on, from Tax Withholding Category.income_type (custom field).
+# Rows: 1 = Sec. 40(1), 2 = 40(2), 3 = 40(3), 4a = 40(4)(a), 4b = 40(4)(b) dividends
+# paid from profits taxed at the standard 20% rate (form row 4(b)(1)(1.3)), 5 = payments
+# withheld under Revenue Department orders issued under Sec. 3 tera, 6 = other (specified).
+CERTIFICATE_ROWS = {
+	"Salary and Wages - Sec. 40(1)": "1",
+	"Fees and Commissions - Sec. 40(2)": "2",
+	"Royalties - Sec. 40(3)": "3",
+	"Interest - Sec. 40(4)(a)": "4a",
+	"Dividends - Sec. 40(4)(b)": "4b",
+	"Sec. 3 Tera (Services, Rent, Contract Work etc.)": "5",
+}
+
+THAI_MONTHS = (
+	"มกราคม",
+	"กุมภาพันธ์",
+	"มีนาคม",
+	"เมษายน",
+	"พฤษภาคม",
+	"มิถุนายน",
+	"กรกฎาคม",
+	"สิงหาคม",
+	"กันยายน",
+	"ตุลาคม",
+	"พฤศจิกายน",
+	"ธันวาคม",
+)
+
+
+def pnd_form(row, supplier_type):
+	"""P.N.D. return the certificate row is filed on, as numbered on the form:
+	1 = ภ.ง.ด.1ก, 2 = ภ.ง.ด.2, 3 = ภ.ง.ด.3, 53 = ภ.ง.ด.53.
+
+	Juristic payees (Company; Partnership, taken as registered) file on
+	ภ.ง.ด.53 whatever the income; individuals by income type: salary on
+	ภ.ง.ด.1ก, Sec. 40(3)/(4) on ภ.ง.ด.2, the rest on ภ.ง.ด.3.
+	"""
+	if supplier_type != "Individual":
+		return "53"
+	if row == "1":
+		return "1"
+	if row in ("3", "4a", "4b"):
+		return "2"
+	return "3"
+
+
+def one_line_address(address_name):
+	"""Address in the order of the Thailand Address Template, on one line."""
+	if not address_name:
+		return None
+	address = frappe.get_cached_doc("Address", address_name)
+	parts = [
+		address.address_line1,
+		address.address_line2,
+		address.county,
+		address.city,
+		address.state,
+		address.pincode,
+	]
+	if address.country and address.country != "Thailand":
+		parts.append(address.country)
+	return " ".join(part.strip() for part in parts if part and part.strip())
+
+
+def tax_id_digits(tax_id):
+	"""The 13 digits of a Thai tax ID for the form's boxes, or None when it is not one."""
+	digits = "".join(ch for ch in (tax_id or "") if ch.isdigit())
+	return digits if len(digits) == 13 else None
+
+
+def get_withholding_certificate(doc):
+	"""Certificate data for a Purchase Invoice with Apply Tax Withholding Amount.
+
+	Amounts are in company currency; the form is Thai, so dates are Buddhist Era
+	and the tax in words is Thai whatever the print language.
+	"""
+	company = frappe.get_cached_doc("Company", doc.company)
+	currency = erpnext.get_company_currency(doc.company)
+	precision = doc.precision("base_grand_total")
+
+	category = (
+		frappe.get_cached_doc("Tax Withholding Category", doc.tax_withholding_category)
+		if doc.tax_withholding_category
+		else None
+	)
+	row = CERTIFICATE_ROWS.get(category.income_type if category else None, "6")
+	supplier_type = frappe.get_cached_value("Supplier", doc.supplier, "supplier_type")
+
+	amount = flt(doc.base_tax_withholding_net_total, precision)
+	tax = flt(
+		sum(abs(flt(t.base_tax_amount)) for t in doc.get("taxes") if cint(t.is_tax_withholding_account)),
+		precision,
+	)
+	posting_date = getdate(doc.posting_date)
+
+	return frappe._dict(
+		payer=frappe._dict(
+			name=company.company_name,
+			tax_id=company.tax_id,
+			tax_id_digits=tax_id_digits(company.tax_id),
+			address=one_line_address(get_default_address("Company", doc.company)),
+		),
+		payee=frappe._dict(
+			name=doc.supplier_name,
+			tax_id=doc.tax_id,
+			tax_id_digits=tax_id_digits(doc.tax_id),
+			address=one_line_address(doc.supplier_address or get_default_address("Supplier", doc.supplier)),
+		),
+		row=row,
+		# row 6 prints what was paid for; translations/th.csv carries the fixture categories
+		row_note=_(category.category_name) if row == "6" and category else None,
+		pnd=pnd_form(row, supplier_type),
+		date=f"{posting_date.day:02d}/{posting_date.month:02d}/{posting_date.year + 543}",
+		amount=fmt_money(amount, precision),
+		tax=fmt_money(tax, precision),
+		tax_in_words=money_in_words(tax, currency, lang="th"),
+		issued=frappe._dict(
+			day=posting_date.day,
+			month=THAI_MONTHS[posting_date.month - 1],
+			year=posting_date.year + 543,
+		),
+	)
@@ -0,0 +1,50 @@
+{#- ERPNext's templates/print_formats/includes/taxes.html, printing the amounts that are posted.
+
+    ERPNext takes an Additional Discount off the items' net amounts (item.distributed_discount_amount;
+    a discount on Grand Total is split between net and taxes) and books each charge at
+    tax_amount_after_discount_amount, while upstream prints the discount as entered and the
+    pre-discount tax_amount, so the lines do not add up to Grand Total.
+
+    Inclusive tax with a discount on Grand Total: the Total line is the tax-inclusive item total
+    and the discount is printed as entered; Total After Discount is then broken down into
+    Net Total and the charges. Otherwise the Total line is the net before the discount, so the
+    discount is its net share, followed by Net Total and the charges. A discount that is not
+    distributed (cash / non-trade) comes off the grand total only and stays after the charges,
+    as upstream. -#}
+{%- macro amount_row(label, value) -%}
+	<div class="row">
+		<div class="col-xs-5 {%- if doc.align_labels_right %} text-right{%- endif -%}">
+			<label>{{ label }}</label>
+		</div>
+		<div class="col-xs-7 text-right">
+			{{ value }}
+		</div>
+	</div>
+{%- endmacro -%}
+{%- macro currency(value) -%}
+	{{ frappe.format_value(value, {"fieldtype": "Currency", "options": "currency"}, doc) }}
+{%- endmacro -%}
+{%- set net_discount = doc.get("items")|map(attribute="distributed_discount_amount")|select|sum -%}
+{%- set gross_discount = net_discount and doc.apply_discount_on == "Grand Total" and doc.flags.show_inclusive_tax_in_print -%}
+
+<div class="row">
+	<div class="col-xs-6"></div>
+	<div class="col-xs-6">
+		{%- if gross_discount -%}
+			{{ amount_row(_(doc.meta.get_label("discount_amount")), "- " ~ doc.get_formatted("discount_amount", doc)) }}
+			{{ amount_row(_("Total After Discount"), currency(doc.total - doc.discount_amount)) }}
+			{{ amount_row(_(doc.meta.get_label("net_total")), doc.get_formatted("net_total", doc)) }}
+		{%- elif net_discount -%}
+			{{ amount_row(_(doc.meta.get_label("discount_amount")), "- " ~ currency(net_discount)) }}
+			{{ amount_row(_(doc.meta.get_label("net_total")), doc.get_formatted("net_total", doc)) }}
+		{%- endif -%}
+		{%- for charge in data -%}
+			{%- if (charge.tax_amount or print_settings.print_taxes_with_zero_amount) and (not charge.included_in_print_rate or doc.flags.show_inclusive_tax_in_print) -%}
+			{{ amount_row(charge.get_formatted("description"), charge.get_formatted("tax_amount_after_discount_amount", doc)) }}
+			{%- endif -%}
+		{%- endfor -%}
+		{%- if doc.discount_amount and not net_discount -%}
+			{{ amount_row(_(doc.meta.get_label("discount_amount")), "- " ~ doc.get_formatted("discount_amount", doc)) }}
+		{%- endif -%}
+	</div>
+</div>
@@ -0,0 +1,22 @@
+{#- ERPNext's templates/print_formats/includes/total.html, paired with the taxes include:
+    with inclusive tax and a discount on Grand Total the Total line is the tax-inclusive item
+    total (the discount is printed as entered below it); with inclusive tax otherwise it is
+    the net before the Additional Discount, since net_total already has the discount's net
+    share (item.distributed_discount_amount) taken off. -#}
+{%- set net_discount = doc.get("items")|map(attribute="distributed_discount_amount")|select|sum -%}
+{%- set gross_discount = net_discount and doc.apply_discount_on == "Grand Total" and doc.flags.show_inclusive_tax_in_print -%}
+<div class="row {% if df.bold %}important{% endif %} data-field">
+	{% if doc.flags.show_inclusive_tax_in_print and not gross_discount %}
+		<div class="col-xs-5 {%- if doc.align_labels_right %} text-right{%- endif -%}">
+			<label>{{ _("Total (Without Tax)") }}</label></div>
+		<div class="col-xs-7 text-right value">
+			{{ frappe.format_value(doc.net_total + net_discount, {"fieldtype": "Currency", "options": "currency"}, doc) }}
+		</div>
+	{% else %}
+		<div class="col-xs-5 {%- if doc.align_labels_right %} text-right{%- endif -%}">
+			<label>{{ _(df.label) }}</label></div>
+		<div class="col-xs-7 text-right value">
+			{{ doc.get_formatted("total", doc) }}
+		</div>
+	{% endif %}
+</div>
@@ -0,0 +1,87 @@
+{#- หนังสือรับรองการหักภาษี ณ ที่จ่าย (Sec. 50 bis certificate) for a Purchase Invoice.
+
+    The Revenue Department's fillable form (approve_wh3_081156.pdf, A4 = 595 x 842 pt) is the page
+    background; every value sits in the rectangle of the corresponding AcroForm field, given here as
+    the PDF's (x0, y0, x1, y1) with the origin at the bottom-left so the numbers can be checked against
+    the form. Two identical copies are printed: copy 1 goes with the payee's tax return, copy 2 is the
+    payee's record. -#}
+{%- set c = get_withholding_certificate(doc) -%}
+{%- set rows = {
+	"1":  {"date": (327, 533, 403, 546), "pay": (411, 533, 490, 547), "tax": (496, 534, 560, 547)},
+	"2":  {"date": (328, 519, 403, 533), "pay": (410, 520, 489, 534), "tax": (496, 519, 560, 532)},
+	"3":  {"date": (328, 504, 403, 518), "pay": (411, 504, 490, 517), "tax": (496, 504, 560, 517)},
+	"4a": {"date": (328, 490, 403, 505), "pay": (412, 490, 491, 504), "tax": (496, 490, 560, 503)},
+	"4b": {"date": (328, 402, 404, 416), "pay": (410, 403, 489, 417), "tax": (497, 403, 562, 416)},
+	"5":  {"date": (327, 216, 403, 230), "pay": (409, 216, 489, 230), "tax": (496, 215, 561, 230)},
+	"6":  {"date": (327, 199, 403, 213), "pay": (409, 199, 489, 213), "tax": (496, 198, 561, 213)},
+} -%}
+{%- set pnd_boxes = {
+	"1": (209, 603, 222, 615),
+	"2": (395, 602, 407, 615),
+	"3": (471, 602, 484, 615),
+	"53": (395, 584, 407, 597),
+} -%}
+{#- Left edges of the printed 13-digit ID boxes (12 pt wide, grouped 1-4-5-2-1), measured on the
+    form; the AcroForm comb field does not line up with them. -#}
+{%- set id_cells = (375, 393, 405, 417, 429, 447.5, 459.5, 471.5, 483.5, 495.5, 513.5, 525.5, 545) -%}
+
+{%- macro box(rect, text, align="left", size=10) -%}
+<div class="f" style="left: {{ rect[0] }}pt; top: {{ 842 - rect[3] }}pt; width: {{ rect[2] - rect[0] }}pt; height: {{ rect[3] - rect[1] }}pt; line-height: {{ rect[3] - rect[1] }}pt; text-align: {{ align }}; font-size: {{ size }}pt;">{{ text }}</div>
+{%- endmacro -%}
+
+{%- macro tick(rect) -%}
+<div class="tick" style="left: {{ rect[0] }}pt; top: {{ 842 - rect[3] }}pt; width: {{ rect[2] - rect[0] }}pt; height: {{ rect[3] - rect[1] }}pt;"></div>
+{%- endmacro -%}
+
+{%- macro tax_id(rect, party) -%}
+	{%- if party.tax_id_digits -%}
+		{%- for digit in party.tax_id_digits -%}
+			{%- set x = id_cells[loop.index0] -%}
+			{{ box((x, rect[1], x + 12, rect[3]), digit, "center") }}
+		{%- endfor -%}
+	{%- elif party.tax_id -%}
+		{{ box(rect, party.tax_id, "center") }}
+	{%- endif -%}
+{%- endmacro -%}
+
+{%- macro amount_row(key) -%}
+	{{ box(rows[key].date, c.date, "center") }}
+	{{ box(rows[key].pay, c.amount, "right") }}
+	{{ box(rows[key].tax, c.tax, "right") }}
+{%- endmacro -%}
+
+{%- for _ in range(2) -%}
+<div class="wht-page">
+	<img class="wht-form" src="/assets/default_thai_company/images/withholding_tax_certificate.png" alt="">
+
+	{#- Invoice reference in the top-right margin; เล่มที่ / เลขที่ are the certificate book's numbers. -#}
+	{{ box((400, 821, 560, 835), doc.name, "right", 8) }}
+
+	{#- ผู้มีหน้าที่หักภาษี ณ ที่จ่าย: the company -#}
+	{{ tax_id((375, 744, 558, 759), c.payer) }}
+	{{ box((54, 729, 316, 745), c.payer.name) }}
+	{{ box((61, 706, 550, 722), c.payer.address or "", "left", 9) }}
+
+	{#- ผู้ถูกหักภาษี ณ ที่จ่าย: the supplier -#}
+	{{ tax_id((375, 676, 558, 690), c.payee) }}
+	{{ box((53, 658, 315, 671), c.payee.name) }}
+	{{ box((59, 627, 550, 643), c.payee.address or "", "left", 9) }}
+
+	{{ tick(pnd_boxes[c.pnd]) }}
+
+	{%- if c.row == "6" %}
+	{{ box((96, 197, 325, 214), c.row_note or "", "left", 8) }}
+	{%- endif %}
+	{{ amount_row(c.row) }}
+	{{ box((409, 180, 488, 196), c.amount, "right") }}
+	{{ box((496, 180, 560, 196), c.tax, "right") }}
+	{{ box((185, 158, 558, 177), c.tax_in_words) }}
+
+	{#- ผู้จ่ายเงิน (1) หัก ณ ที่จ่าย -#}
+	{{ tick((82, 119, 94, 131)) }}
+
+	{{ box((342, 72, 366, 87), c.issued.day, "center") }}
+	{{ box((364, 71, 428, 87), c.issued.month, "center") }}
+	{{ box((429, 72, 470, 87), c.issued.year, "center") }}
+</div>
+{%- endfor -%}
@@ -8,14 +8,19 @@ from frappe.utils import nowdate

 from default_thai_company.tax_withholding import (
 	ASSET_ACCOUNT,
+	INPUT_VAT_ACCOUNT,
 	LIABILITY_ACCOUNT,
+	OUTPUT_VAT_ACCOUNT,
 	get_payment_entry,
+	get_withholding_certificate,
 	thai_companies,
 )

 COMPANY = "_Test WHT Company"
 ABBR = "_TWC"
 CUSTOMER = "_Test WHT Customer"
+SUPPLIER = "_Test WHT Supplier"
+INDIVIDUAL = "_Test WHT Individual"
 ITEM = "_Test WHT Service"
 FIXTURE = frappe.get_app_path("default_thai_company", "fixtures", "tax_withholding_category.json")
 CUSTOM_DIR = frappe.get_app_path("default_thai_company", "default_thai_company", "custom")
@@ -25,12 +30,13 @@ class TestTaxWithholding(FrappeTestCase):
 	@classmethod
 	def setUpClass(cls):
 		super().setUpClass()
-		# Fixture categories must exist before the company is created so the
-		# Company hook has something to link; force=True re-imports.
-		import_file_by_path(FIXTURE, force=True, data_import=True)
-		for fname in ("sales_invoice.json", "payment_entry.json"):
+		# Custom Fields first: the category fixtures carry income_type. Fixture
+		# categories must exist before the company is created so the Company hook
+		# has something to link; force=True re-imports.
+		for fname in ("tax_withholding_category.json", "sales_invoice.json", "payment_entry.json"):
 			with open(f"{CUSTOM_DIR}/{fname}") as f:
 				sync_customizations_for_doctype(json.load(f), CUSTOM_DIR, fname)
+		import_file_by_path(FIXTURE, force=True, data_import=True)

 		frappe.get_doc(
 			{
@@ -40,20 +46,12 @@ class TestTaxWithholding(FrappeTestCase):
 				"country": "Thailand",
 				"default_currency": "THB",
 				"chart_of_accounts": "Standard",
+				"tax_id": "0105551234567",
 			}
 		).insert()
 		cls.payable = f"{LIABILITY_ACCOUNT} - {ABBR}"
 		cls.receivable = f"{ASSET_ACCOUNT} - {ABBR}"
-
-		cls.vat = frappe.get_doc(
-			{
-				"doctype": "Account",
-				"company": COMPANY,
-				"account_name": "Output VAT",
-				"parent_account": f"Duties and Taxes - {ABBR}",
-				"account_type": "Tax",
-			}
-		).insert()
+		cls.vat = frappe.get_doc("Account", f"{OUTPUT_VAT_ACCOUNT} - {ABBR}")

 		frappe.get_doc(
 			{
@@ -76,6 +74,35 @@ class TestTaxWithholding(FrappeTestCase):
 			}
 		).insert()

+		supplier_group = frappe.db.get_value("Supplier Group", {"is_group": 0})
+		for name, supplier_type, tax_id in (
+			(SUPPLIER, "Company", "0-1234-56789-01-2"),
+			(INDIVIDUAL, "Individual", "1234567890123"),
+		):
+			frappe.get_doc(
+				{
+					"doctype": "Supplier",
+					"supplier_name": name,
+					"supplier_type": supplier_type,
+					"supplier_group": supplier_group,
+					"tax_id": tax_id,
+				}
+			).insert()
+		frappe.get_doc(
+			{
+				"doctype": "Address",
+				"address_title": SUPPLIER,
+				"address_type": "Billing",
+				"address_line1": "99/9 Moo 5",
+				"address_line2": "Soi Sukhumvit 24",
+				"city": "Khlong Toei",
+				"state": "Bangkok",
+				"pincode": "10110",
+				"country": "Thailand",
+				"links": [{"link_doctype": "Supplier", "link_name": SUPPLIER}],
+			}
+		).insert()
+
 	def make_invoice(self, rate=10000, category=None, inclusive=False):
 		si = frappe.get_doc(
 			{
@@ -128,6 +155,31 @@ class TestTaxWithholding(FrappeTestCase):
 	def withheld(self, pe):
 		return [(t.account_head, t.add_deduct_tax, t.tax_amount) for t in pe.taxes]

+	def make_purchase_invoice(self, supplier, category, rate=100000):
+		pi = frappe.get_doc(
+			{
+				"doctype": "Purchase Invoice",
+				"company": COMPANY,
+				"supplier": supplier,
+				"set_posting_time": 1,
+				"posting_date": "2026-09-16",
+				"due_date": "2026-09-16",
+				"apply_tds": 1,
+				"tax_withholding_category": category,
+				"items": [{"item_code": ITEM, "qty": 1, "rate": rate}],
+				"taxes": [
+					{
+						"charge_type": "On Net Total",
+						"account_head": f"{INPUT_VAT_ACCOUNT} - {ABBR}",
+						"rate": 7,
+						"description": "VAT 7%",
+					}
+				],
+			}
+		)
+		pi.set_missing_values()
+		return pi.insert()
+
 	def category_account(self, category, company=COMPANY):
 		return frappe.db.get_value(
 			"Tax Withholding Account",
@@ -137,14 +189,17 @@ class TestTaxWithholding(FrappeTestCase):

 	def test_company_creation_adds_accounts_and_links_categories(self):
 		self.assertIn(COMPANY, thai_companies())
-		self.assertEqual(
-			frappe.db.get_value("Account", self.payable, ["root_type", "parent_account"]),
-			("Liability", f"Duties and Taxes - {ABBR}"),
-		)
-		self.assertEqual(
-			frappe.db.get_value("Account", self.receivable, ["root_type", "parent_account"]),
-			("Asset", f"Tax Assets - {ABBR}"),
-		)
+		for account, expected in (
+			(self.payable, ("Liability", f"Duties and Taxes - {ABBR}", "Tax")),
+			(self.receivable, ("Asset", f"Tax Assets - {ABBR}", "Tax")),
+			(f"{OUTPUT_VAT_ACCOUNT} - {ABBR}", ("Liability", f"Duties and Taxes - {ABBR}", "Tax")),
+			(f"{INPUT_VAT_ACCOUNT} - {ABBR}", ("Asset", f"Tax Assets - {ABBR}", "Tax")),
+		):
+			self.assertEqual(
+				frappe.db.get_value("Account", account, ["root_type", "parent_account", "account_type"]),
+				expected,
+				account,
+			)

 		categories = frappe.get_all(
 			"Tax Withholding Category", filters={"name": ("like", "WHT %")}, pluck="name"
@@ -153,6 +208,67 @@ class TestTaxWithholding(FrappeTestCase):
 		for name in categories:
 			self.assertEqual(self.category_account(name), self.payable, name)

+	def test_company_creation_adds_vat_schemes(self):
+		for doctype, account in (
+			("Sales Taxes and Charges Template", f"{OUTPUT_VAT_ACCOUNT} - {ABBR}"),
+			("Purchase Taxes and Charges Template", f"{INPUT_VAT_ACCOUNT} - {ABBR}"),
+		):
+			schemes = {}
+			for name in frappe.get_all(
+				doctype, filters={"company": COMPANY, "title": ("like", "Thailand VAT%")}, pluck="name"
+			):
+				doc = frappe.get_doc(doctype, name)
+				(row,) = doc.taxes
+				schemes[doc.title] = (
+					doc.is_default,
+					row.account_head,
+					row.charge_type,
+					row.rate,
+					row.included_in_print_rate,
+				)
+			self.assertEqual(
+				schemes,
+				{
+					"Thailand VAT 7%": (1, account, "On Net Total", 7.0, 0),
+					"Thailand VAT 7% (Included)": (0, account, "On Net Total", 7.0, 1),
+					"Thailand VAT 0%": (0, account, "On Net Total", 0.0, 0),
+				},
+				doctype,
+			)
+
+	def test_company_creation_adds_shipping_rule(self):
+		rule = frappe.get_doc("Shipping Rule", f"Shipping Charges - {ABBR}")
+		self.assertEqual(
+			(rule.company, rule.shipping_rule_type, rule.calculate_based_on, rule.account, rule.cost_center),
+			(COMPANY, "Selling", "Fixed", f"Shipping Charges - {ABBR}", f"Main - {ABBR}"),
+		)
+		self.assertEqual(frappe.db.get_value("Account", rule.account, "root_type"), "Income")
+
+	def test_shipping_amount_entered_on_transaction_survives_recalculation(self):
+		rule = f"Shipping Charges - {ABBR}"
+		so = frappe.get_doc(
+			{
+				"doctype": "Sales Order",
+				"company": COMPANY,
+				"customer": CUSTOMER,
+				"transaction_date": nowdate(),
+				"delivery_date": nowdate(),
+				"shipping_rule": rule,
+				"items": [{"item_code": ITEM, "qty": 1, "rate": 1000}],
+			}
+		)
+		so.set_missing_values()
+		so.apply_shipping_rule()
+		(charge,) = so.taxes
+		self.assertEqual((charge.description, charge.tax_amount), (rule, 0))
+
+		charge.tax_amount = 150
+		so.insert()
+		so.apply_shipping_rule()
+		so.save()
+		self.assertEqual([t.tax_amount for t in so.taxes], [150])
+		self.assertEqual(so.grand_total, 1150)
+
 	def test_fixture_reimport_keeps_site_account_and_relinks(self):
 		alt = frappe.get_doc(
 			{
@@ -273,3 +389,34 @@ class TestTaxWithholding(FrappeTestCase):
 		)
 		self.assertEqual(pe.references[0].allocated_amount, 5350.0)
 		self.assertEqual(self.withheld(pe), [(self.receivable, "Deduct", 150.0)])
+
+	def test_certificate_reports_withholding_on_the_category_row(self):
+		pi = self.make_purchase_invoice(SUPPLIER, "WHT 3% - Professional Fee")
+		self.assertEqual(pi.grand_total, 104000.0)  # 100,000 + 7% VAT - 3% withheld
+
+		c = get_withholding_certificate(pi)
+		self.assertEqual((c.row, c.row_note, c.pnd), ("5", None, "53"))
+		self.assertEqual((c.amount, c.tax, c.tax_in_words), ("100,000.00", "3,000.00", "สามพันบาทถ้วน"))
+		self.assertEqual(
+			(c.date, dict(c.issued)), ("16/09/2569", {"day": 16, "month": "กันยายน", "year": 2569})
+		)
+		self.assertEqual((c.payer.name, c.payer.tax_id_digits), (COMPANY, "0105551234567"))
+		self.assertEqual(
+			(c.payee.name, c.payee.tax_id_digits, c.payee.address),
+			(SUPPLIER, "0123456789012", "99/9 Moo 5 Soi Sukhumvit 24 Khlong Toei Bangkok 10110"),
+		)
+
+	def test_certificate_return_follows_payee_type_and_income(self):
+		c = get_withholding_certificate(
+			self.make_purchase_invoice(INDIVIDUAL, "WHT 15% - Interest (Individual)")
+		)
+		self.assertEqual((c.row, c.pnd, c.tax), ("4a", "2", "15,000.00"))
+		self.assertIsNone(c.payee.address)
+
+		c = get_withholding_certificate(
+			self.make_purchase_invoice(INDIVIDUAL, "WHT 15% - Non-Resident Individual")
+		)
+		self.assertEqual((c.row, c.pnd), ("6", "3"))
+		self.assertEqual(
+			c.row_note, "Sec. 40(2)-(6) income paid to non-resident individuals - Sec. 50(2) (P.N.D.3)"
+		)
@@ -11,6 +11,8 @@ Signatures,ลายเซ็น
 On behalf of,ในนาม
 Receiver,ผู้รับ
 Issuer,ผู้ออก
+Accepted By,ผู้อนุมัติสั่งซื้อ
+Quoted By,ผู้เสนอราคา
 Tax Invoice,ใบกำกับภาษี
 Tax Invoice/Receipt,ใบกำกับภาษี/ใบเสร็จรับเงิน
 "Commission, brokerage, agency fees - Sec. 40(2), juristic payee (P.N.D.53)",ค่านายหน้า ค่าตัวแทน - มาตรา 40(2) ผู้รับเป็นนิติบุคคล (ภ.ง.ด.53)
@@ -48,8 +50,21 @@ Amount,จำนวนเงิน
 Total,รวม
 Total (Without Tax),รวมก่อนภาษี
 Net Total,ยอดรวมสุทธิ
+Total After Discount,ยอดรวมหลังหักส่วนลด
 Total Taxes and Charges,รวมภาษีและค่าธรรมเนียม
 Grand Total,ยอดรวมทั้งสิ้น
 Rounded Total,ยอดรวมปัดเศษ
 Terms and Conditions Details,รายละเอียดข้อตกลงและเงื่อนไข
 Page {0} of {1},หน้า {0} จาก {1}
+Withholding Tax Payable,ภาษีหัก ณ ที่จ่ายค้างจ่าย
+Withholding Tax Receivable,ภาษีถูกหัก ณ ที่จ่าย
+Output VAT,ภาษีขาย
+Input VAT,ภาษีซื้อ
+Withholding Tax Certificate,หนังสือรับรองการหักภาษี ณ ที่จ่าย
+Type of Income Paid,ประเภทเงินได้พึงประเมินที่จ่าย
+Salary and Wages - Sec. 40(1),เงินเดือน ค่าจ้าง ฯลฯ ตามมาตรา 40(1)
+Fees and Commissions - Sec. 40(2),ค่าธรรมเนียม ค่านายหน้า ฯลฯ ตามมาตรา 40(2)
+Royalties - Sec. 40(3),ค่าแห่งลิขสิทธิ์ ฯลฯ ตามมาตรา 40(3)
+Interest - Sec. 40(4)(a),ดอกเบี้ย ฯลฯ ตามมาตรา 40(4)(ก)
+Dividends - Sec. 40(4)(b),เงินปันผล เงินส่วนแบ่งกำไร ฯลฯ ตามมาตรา 40(4)(ข)
+"Sec. 3 Tera (Services, Rent, Contract Work etc.)",ตามคำสั่งกรมสรรพากรที่ออกตามมาตรา 3 เตรส (ค่าบริการ ค่าเช่า ค่าจ้างทำของ ฯลฯ)
@@ -5,14 +5,14 @@ from frappe.contacts.doctype.address.address import get_default_address, render_
 from num2words import num2words


-def money_in_words(amount, currency):
-	"""Amount in words for the active language.
+def money_in_words(amount, currency, lang=None):
+	"""Amount in words for `lang` (default: the active language).

 	frappe.utils.money_in_words renders "<currency> <words> only." in every
 	language; Thai documents write "<words>บาทถ้วน" or "<words>บาท<words>สตางค์".
 	Currencies num2words cannot spell in Thai keep frappe's wording.
 	"""
-	if frappe.local.lang == "th":
+	if (lang or frappe.local.lang) == "th":
 		try:
 			return num2words(amount, lang="th", to="currency", currency=currency)
 		except NotImplementedError:
@@ -0,0 +1,78 @@
+import erpnext
+import frappe
+
+from default_thai_company.tax_withholding import (
+	INPUT_VAT_ACCOUNT,
+	OUTPUT_VAT_ACCOUNT,
+	company_ready,
+	get_or_create_account,
+	thai_companies,
+)
+
+RATE = 7.0
+
+# title, rate, included_in_print_rate. Exempt supplies take no template.
+SCHEMES = (
+	("Thailand VAT 7%", RATE, 0),
+	("Thailand VAT 7% (Included)", RATE, 1),  # VAT-inclusive prices, the retail norm
+	("Thailand VAT 0%", 0.0, 0),  # zero-rated: exports, international transport
+)
+DEFAULT_SCHEME = "Thailand VAT 7%"
+
+# doctype, account, root type, extra row fields. Input VAT is recoverable, so on
+# purchases it is "Total" (added to the bill, kept out of item valuation).
+TEMPLATES = (
+	("Sales Taxes and Charges Template", OUTPUT_VAT_ACCOUNT, "Liability", {}),
+	(
+		"Purchase Taxes and Charges Template",
+		INPUT_VAT_ACCOUNT,
+		"Asset",
+		{"category": "Total", "add_deduct_tax": "Add"},
+	),
+)
+
+
+def ensure_vat_templates(company):
+	"""Create the VAT schemes for `company`, skipping titles that exist. The 7%
+	scheme becomes the default when the company has no default template."""
+	cost_center = erpnext.get_default_cost_center(company)
+	for doctype, account_name, root_type, extra in TEMPLATES:
+		account = get_or_create_account(company, account_name, root_type)
+		has_default = frappe.db.exists(doctype, {"company": company, "is_default": 1})
+		for title, rate, included in SCHEMES:
+			if frappe.db.exists(doctype, {"company": company, "title": title}):
+				continue
+			is_default = title == DEFAULT_SCHEME and not has_default
+			frappe.get_doc(
+				{
+					"doctype": doctype,
+					"title": title,
+					"company": company,
+					"is_default": int(is_default),
+					"taxes": [
+						{
+							"charge_type": "On Net Total",
+							"account_head": account,
+							"rate": rate,
+							"description": f"VAT {rate:g}%",
+							"included_in_print_rate": included,
+							"cost_center": cost_center,
+							**extra,
+						}
+					],
+				}
+			).insert(ignore_permissions=True)
+			has_default = has_default or is_default
+
+
+def setup_company(doc, method=None):
+	"""Company.on_update: VAT schemes for a Thai company."""
+	if company_ready(doc):
+		ensure_vat_templates(doc.name)
+
+
+def setup_companies():
+	"""after_install and the create_vat_templates patch: companies that exist
+	before this code did never pass through `setup_company`."""
+	for company in thai_companies():
+		ensure_vat_templates(company)
Author	SHA1	Message	Date
kurogeek	baff8de0d3	fix: certificate button only on paid Purchase Invoices The certificate is issued when the tax is withheld, i.e. on payment; show the button once the submitted invoice's status is Paid.	2026-09-22 03:58:04 +00:00
kurogeek	2ee381f369	feat: Withholding Tax Certificate button on Purchase Invoice Shown while Apply Tax Withholding Amount is ticked on a saved, not cancelled invoice; downloads the certificate PDF in Thai.	2026-09-22 03:29:54 +00:00
kurogeek	a1ca8439fc	feat: Withholding Tax Certificate print format for Purchase Invoice The Revenue Department's Sec. 50 bis form (approve_wh3_081156.pdf) as the page background, with the invoice's data positioned in the form's fields; two copies per certificate. Its AcroForm fields carry no Thai font, so the PDF is not filled directly. get_withholding_certificate(doc) resolves the payer and payee (13-digit tax ID, one-line address), the certificate row from the category's income_type, the P.N.D. return from the supplier type and income, and the amounts in company currency with the tax in Thai words. Dates are Buddhist Era.	2026-09-22 03:29:54 +00:00
kurogeek	42857b1377	feat: Type of Income Paid on Tax Withholding Category Custom Select income_type: the row of the withholding tax certificate (50 tawi) a payment under the category is reported on, set for every shipped category. Frappe syncs fixtures before customizations on install and migrate, so a fixture value for a Custom Field that does not exist yet is dropped; before_install / before_migrate create the category fields first.	2026-09-22 03:29:39 +00:00
kurogeek	270e44c080	feat: default calendar-year Payroll Period per Thai company	2026-09-18 03:52:35 +00:00
kurogeek	68f0817125	fix: gross discount layout for VAT-inclusive invoices With inclusive pricing and a discount on Grand Total the Total line is the tax-inclusive item total and the discount is printed as entered, followed by Total After Discount, which the Net Total and charge lines then break down. Other cases keep the net layout: Total (net before discount), the discount's net share, Net Total, charges. Thai label for Total After Discount.	2026-09-17 10:30:43 +00:00
kurogeek	4a19c60ba2	fix: print the posted discount and tax amounts ERPNext takes an Additional Discount off the items' net amounts and, for a discount on Grand Total, splits it between net and taxes: each charge is booked at tax_amount_after_discount_amount and Total Taxes and Charges sums those. The print showed the discount as entered and the pre-discount tax_amount, so on a Grand Total discount the VAT line disagreed with the invoice. The totals includes now print the discount's net share (sum of item.distributed_discount_amount), Net Total, and each charge after discount, so the lines add up to Grand Total whichever total the discount applies on and with inclusive or exclusive tax. A discount that is not distributed (cash / non-trade) stays after the charges.	2026-09-17 10:19:30 +00:00
kurogeek	71eda0bec9	fix: print Total, Additional Discount, Net Total in that order Default Standard Sales Invoice and Tax Invoice/Receipt printed the Additional Discount Amount among the charges, after the Total line but with no total after the discount. App copies of ERPNext's totals includes are swapped in via doc.print_templates: - taxes.html: a discount on Net Total is followed by the Net Total line ahead of the charges; a discount on Grand Total stays after them. - total.html: with inclusive tax, "Total (Without Tax)" is the total before the discount (net_total + discount_amount); upstream printed net_total, which already has the discount taken off, so the same figure appeared before and after the discount line.	2026-09-17 10:02:23 +00:00
kurogeek	8cba58ba02	feat: default Shipping Rule per Thai company "Shipping Charges - <abbr>": Selling, Fixed, posting to a "Shipping Charges" income account under Direct Income (created if the chart lacks it) with the default cost center. Shipping Rule is named by its label, so the company abbreviation keeps one rule per company, as ERPNext names its tax templates. Created on Company save, after install, and by a patch for existing companies. The amount is entered on the transaction, not the rule: ERPNext re-applies the rule on every recalculation and would reset the charge row to the rule's fixed amount. ThaiShippingRule overrides the doctype class so a Fixed rule with no amount only seeds the row and leaves the entered amount alone.	2026-09-17 10:02:23 +00:00
kurogeek	4785878025	feat: default Location tree and Asset Categories Location fixture: "All Locations" group with Head Office, Branch Office and Warehouse. Fixture import re-inserts tree nodes with fresh lft/rgt, which strands locations users add beneath them, so after_migrate rebuilds the Location tree. Asset Category fixture: Land (non-depreciable), Buildings (20 years), Plant and Machinery, Vehicles, Furniture and Fixtures, Office Equipment, Computers and Electronics, Software (5 years) and Intangible Assets (10 years), per Royal Decree 145 rates; monthly straight-line, daily pro-rata. The accounts table is company-specific and therefore not shipped: an Asset Category before_import hook links every Thai company (same contract as the WHT categories), reusing the Standard chart's fixed asset accounts and creating Land, Vehicles and Intangible Assets under Fixed Assets. Company.on_update links new companies. Depreciation accounts are left to the Company defaults. get_or_create_account now takes account_type and parent_groups.	2026-09-17 05:13:00 +00:00
kurogeek	2a44aed574	feat: Thailand Personal Income Tax slab fixture Submitted Income Tax Slab "Thailand Personal Income Tax" (THB, effective 2017-01-01) with the eight progressive brackets 0% to 35%, using the HRMS from/to convention (150,001-300,000 etc.). standard_tax_exemption_amount is 160,000: the Sec. 42 bis expense deduction (50%, max 100,000) plus the personal allowance (60,000), which every employee gets without filing a declaration. The "Expense Deduction" category and "Personal allowance" sub-category are dropped from the exemption fixtures so they cannot be counted twice; Personal and Family Allowances cap becomes 270,000.	2026-09-17 01:10:43 +00:00
kurogeek	6a969841e5	feat: Thai personal income tax exemption categories for HRMS Fixtures for Employee Tax Exemption Category / Sub Category covering the Thai PIT allowances (personal and family, insurance, retirement savings, Thai ESG/ESGX, social security, home loan interest, donations, income exemptions, stimulus measures) plus the Sec. 42 bis expense deduction. Category caps follow HRMS validation: a sub-category max must not exceed its category max and the declaration caps the category total, so groups with a real combined limit carry it, groups without one use the sum of their sub caps, and uncapped per-person/percentage items live in 0-cap categories. Social Security uses the 2026 ceiling (10,500/yr); SSF is kept inactive. sync_fixtures skips these files on sites without hrms.	2026-09-16 11:22:28 +00:00
kurogeek	d074657511	feat: add Default Standard Quotation print format	2026-09-16 07:46:59 +00:00
kurogeek	04735ca813	feat: Thai VAT schemes as Sales/Purchase Taxes and Charges Templates Per Thai company: Thailand VAT 7%, Thailand VAT 7% (Included) for VAT-inclusive pricing, Thailand VAT 0% for zero-rated supplies. Sales schemes post to Output VAT, purchase schemes to Input VAT (category Total, so recoverable VAT stays out of valuation). The 7% scheme is the default when the company has none. Created on Company save, after install, and by a patch for existing companies.	2026-09-15 09:35:15 +00:00
kurogeek	381aab2c83	feat: Output VAT and Input VAT accounts for every Thai company Thai VAT is filed on P.P.30 as output tax (ภาษีขาย, collected on sales) net of input tax (ภาษีซื้อ, paid on purchases); ERPNext's wizard makes a single VAT account. Both join the per-company tax accounts created on Company save and fixture import; a patch adds them to existing companies. Account names are translated for the chart of accounts tree.	2026-09-15 09:19:43 +00:00