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.

README.md

@@ -12,6 +12,14 @@ bench get-app $URL_OF_THIS_REPO --branch develop
 bench install-app default_thai_company
 ```
 
+### Thai language
+
+Every string the app adds (custom field labels, messages, print format and letter head
+text, Tax Withholding Category names) is translated in `translations/th.csv`; the same
+file overrides the upstream Thai for the standard labels the print formats show. The
+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.
+
 ### 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:

default_thai_company/assets.py

@@ -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")

default_thai_company/fixtures/address_template.json

@@ -6,6 +6,6 @@
   "is_default": 1,
   "modified": "2026-09-09 17:23:33.559202",
   "name": "Thailand",
-  "template": "{{ address_line1 }}{% if address_line2 %} {{ address_line2 }}{% endif %}<br>\n{% if county %}{{ county }} {% endif -%}{{ city }}{% if state %} {{ state }}{% endif -%}{% if pincode %} {{ pincode }}{% endif -%}{% if country != \"Thailand\" %} {{ country }}{% endif %}<br>\n{% if phone or fax or email_id %}<br>{% endif -%}\n{% if phone %}{{ _(\"Phone\") }}: {{ phone }}<br>{% endif -%}\n{% if fax %}{{ _(\"Fax\") }}: {{ fax }}<br>{% endif -%}\n{% if email_id %}{{ _(\"Email\") }}: {{ email_id }}<br>{% endif -%}\n"
+  "template": "{{ address_line1 }}{% if address_line2 %} {{ address_line2 }}{% endif %}<br>\n{% if county %}{{ county }} {% endif -%}{{ city }}{% if state %} {{ state }}{% endif -%}{% if pincode %} {{ pincode }}{% endif -%}{% if country != \"Thailand\" %} {{ country }}{% endif %}<br>\n{% if phone %}{{ _(\"Phone\") }}: {{ phone }}<br>{% endif -%}\n{% if fax %}{{ _(\"Fax\") }}: {{ fax }}<br>{% endif -%}\n{% if email_id %}{{ _(\"Email\") }}: {{ email_id }}<br>{% endif -%}\n"
  }
 ]

default_thai_company/fixtures/asset_category.json

@@ -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
+ }
+]

default_thai_company/fixtures/employee_tax_exemption_category.json

@@ -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"
+ }
+]

default_thai_company/fixtures/employee_tax_exemption_sub_category.json

@@ -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)"
+ }
+]

default_thai_company/fixtures/income_tax_slab.json

@@ -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
+ }
+]

default_thai_company/fixtures/letter_head.json

@@ -1,7 +1,7 @@
 [
  {
   "align": "Left",
-  "content": "<style>\n    .bpt-title {\n        display: -webkit-box;\n        display: flex;\n        -webkit-box-align: center;\n        align-items: center;\n        width: 100%;\n    }\n    .bpt-title img {\n        margin-right: 1em;\n    }\n    .bpt-title .bpt-company {\n        -webkit-box-flex: 1;\n        flex: 1;\n        text-align: right;\n    }\n</style>\n{% set company = get_letter_head_company(doc) %}\n{% if company %}\n<div class=\"bpt-title\">\n    {% if company.company_logo %}\n    <img alt=\"{{ company.company_name }}\" height=\"125\" src=\"{{ company.company_logo }}\">\n    {% endif %}\n    <div class=\"bpt-company\">\n        <h1>{{ company.company_name }}</h1>\n        <small>\n            {% if company.tax_id %}<div>Tax ID: {{ company.tax_id }}</div>{% endif %}\n            {% if company.address %}<div>{{ company.address }}</div>{% endif %}\n            {% if company.phone_no %}<div>Phone: {{ company.phone_no }}</div>{% endif %}\n            {% if company.email %}<div>Email: {{ company.email }}</div>{% endif %}\n        </small>\n    </div>\n</div>\n{% endif %}\n",
+  "content": "<style>\n    .bpt-title {\n        display: -webkit-box;\n        display: flex;\n        -webkit-box-align: center;\n        align-items: center;\n        width: 100%;\n    }\n    .bpt-title img {\n        margin-right: 1em;\n    }\n    .bpt-title .bpt-company {\n        -webkit-box-flex: 1;\n        flex: 1;\n        text-align: right;\n    }\n</style>\n{% set company = get_letter_head_company(doc) %}\n{% if company %}\n<div class=\"bpt-title\">\n    {% if company.company_logo %}\n    <img alt=\"{{ company.company_name }}\" height=\"125\" src=\"{{ company.company_logo }}\">\n    {% endif %}\n    <div class=\"bpt-company\">\n        <h1>{{ company.company_name }}</h1>\n        <small>\n            {% if company.tax_id %}<div>{{ _(\"Tax ID\") }}: {{ company.tax_id }}</div>{% endif %}\n            {% if company.address %}<div>{{ company.address }}</div>{% endif %}\n            {% if company.phone_no %}<div>{{ _(\"Phone\") }}: {{ company.phone_no }}</div>{% endif %}\n            {% if company.email %}<div>{{ _(\"Email\") }}: {{ company.email }}</div>{% endif %}\n        </small>\n    </div>\n</div>\n{% endif %}\n",
   "disabled": 0,
   "docstatus": 0,
   "doctype": "Letter Head",
@@ -18,7 +18,7 @@
   "image_width": 0.0,
   "is_default": 1,
   "letter_head_name": "Default Letter Head",
-  "modified": "2026-09-10 09:51:23.933752",
+  "modified": "2026-09-15 06:44:37.653888",
   "name": "Default Letter Head",
   "source": "HTML"
  }

default_thai_company/fixtures/location.json

@@ -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"
+ }
+]

default_thai_company/hooks.py

@@ -78,6 +78,7 @@ jinja = {
 	"methods": [
 		"default_thai_company.utils.get_letter_head_company",
 		"default_thai_company.utils.get_company_bank_account",
+		"default_thai_company.utils.get_in_words",
 	],
 }
 
@@ -89,15 +90,63 @@ jinja = {
 fixtures = [
 	{"doctype": "Letter Head", "filters": [["name", "in", ["Default Letter Head"]]]},
 	{"doctype": "Address Template", "filters": [["name", "in", ["Thailand"]]]},
-	{"doctype": "Print Format", "filters": [["name", "in", ["Default Standard Sales Invoice"]]]},
+	{
+		"doctype": "Print Format",
+		"filters": [
+			[
+				"name",
+				"in",
+				[
+					"Default Standard Sales Invoice",
+					"Default Standard Tax Invoice/Receipt",
+					"Default Standard Quotation",
+				],
+			]
+		],
+	},
 	{"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 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",
+]
+# Fixture import re-inserts the Location tree; restore lft/rgt for user-added nodes.
+after_migrate = "default_thai_company.assets.rebuild_locations"
 
 # Uninstallation
 # ------------
@@ -146,6 +195,7 @@ 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
@@ -160,8 +210,16 @@ 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",
+		],
 	},
 	"Payment Entry": {
 		"validate": "default_thai_company.tax_withholding.set_customer_withholding",

default_thai_company/patches.txt

@@ -4,3 +4,6 @@
 
 [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_shipping_rules.py

@@ -0,0 +1,5 @@
+from default_thai_company.shipping import setup_companies
+
+
+def execute():
+	setup_companies()

default_thai_company/patches/create_vat_accounts.py

@@ -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)

default_thai_company/patches/create_vat_templates.py

@@ -0,0 +1,5 @@
+from default_thai_company.vat import setup_companies
+
+
+def execute():
+	setup_companies()

default_thai_company/public/fonts/OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2018 The Sarabun Project Authors (https://github.com/cadsondemak/Sarabun)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

default_thai_company/shipping.py

@@ -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)

default_thai_company/tax_withholding.py

@@ -10,10 +10,25 @@ from erpnext.accounts.doctype.tax_withholding_category.tax_withholding_category
 from frappe import _
 from frappe.utils import cint, flt
 
-# Liability: tax we withhold from suppliers and remit on P.N.D.3/53 (linked on every category).
+from default_thai_company.utils import money_in_words
-# 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 = {
@@ -28,7 +43,9 @@ 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}
 	)
@@ -40,17 +57,19 @@ 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):
+def find_parent_group(company, root_type, group_names):
-	for account_name in PARENT_GROUPS[root_type]:
+	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},
@@ -65,9 +84,10 @@ def find_parent_group(company, root_type):
 
 
 def ensure_company_accounts(company):
-	"""Create both withholding accounts for `company`; return the liability account name."""
+	"""Create every account in COMPANY_ACCOUNTS for `company`; return the
-	get_or_create_account(company, ASSET_ACCOUNT, "Asset")
+	withholding liability account name (the one Tax Withholding Categories link)."""
-	return get_or_create_account(company, LIABILITY_ACCOUNT, "Liability")
+	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):
@@ -102,9 +122,14 @@ def prepare_fixture_accounts(doc, method=None):
 			link_company(doc, company, ensure_company_accounts(company))
 
 
+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."""
+	"""Company.on_update: create the tax accounts and link every WHT category."""
-	if doc.country != "Thailand" or not frappe.db.exists("Account", {"company": doc.name}):
+	if not company_ready(doc):
 		return
 
 	account = ensure_company_accounts(doc.name)
@@ -158,6 +183,17 @@ class ThaiSalesInvoice(SalesInvoice):
 				self.precision("amount_after_withholding"),
 			)
 
+	def set_total_in_words(self):
+		"""SellingController's version, with Thai wording when the saving user's
+		language is Thai. Print formats re-derive the text per print language
+		(`get_in_words`)."""
+		base_amount = abs(
+			self.base_grand_total if self.is_rounded_total_disabled() else self.base_rounded_total
+		)
+		self.base_in_words = money_in_words(base_amount, self.company_currency)
+		amount = abs(self.grand_total if self.is_rounded_total_disabled() else self.rounded_total)
+		self.in_words = money_in_words(amount, self.currency)
+
 
 class ThaiPaymentEntry(PaymentEntry):
 	def build_gl_map(self):
@@ -333,7 +369,8 @@ def get_customer_withholding(doc):
 		total += withholding_on(details_by_category[category], base_taxable, base_taxable, precision)
 
 	if len(details_by_category) == 1:
-		description = next(iter(details_by_category.values())).description
+		# category_name; translations/th.csv carries the fixture categories
+		description = _(next(iter(details_by_category.values())).description)
 	else:
 		description = _("Withholding tax deducted by customer")
 	return flt(total, precision), description

default_thai_company/templates/print_formats/includes/taxes.html

@@ -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>

default_thai_company/templates/print_formats/includes/total.html

@@ -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>

default_thai_company/tests/test_tax_withholding.py

@@ -8,7 +8,9 @@ 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,
 	thai_companies,
 )
@@ -44,16 +46,7 @@ class TestTaxWithholding(FrappeTestCase):
 		).insert()
 		cls.payable = f"{LIABILITY_ACCOUNT} - {ABBR}"
 		cls.receivable = f"{ASSET_ACCOUNT} - {ABBR}"
-
+		cls.vat = frappe.get_doc("Account", f"{OUTPUT_VAT_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()
 
 		frappe.get_doc(
 			{
@@ -137,13 +130,16 @@ class TestTaxWithholding(FrappeTestCase):
 
 	def test_company_creation_adds_accounts_and_links_categories(self):
 		self.assertIn(COMPANY, thai_companies())
+		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", self.payable, ["root_type", "parent_account"]),
+				frappe.db.get_value("Account", account, ["root_type", "parent_account", "account_type"]),
-			("Liability", f"Duties and Taxes - {ABBR}"),
+				expected,
-		)
+				account,
-		self.assertEqual(
-			frappe.db.get_value("Account", self.receivable, ["root_type", "parent_account"]),
-			("Asset", f"Tax Assets - {ABBR}"),
 			)
 
 		categories = frappe.get_all(
@@ -153,6 +149,67 @@ 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(
 			{

default_thai_company/translations/th.csv

@@ -0,0 +1,62 @@
+Net Payable After Withholding Tax,ยอดชำระสุทธิหลังหักภาษี ณ ที่จ่าย
+Withholding Tax,ภาษีหัก ณ ที่จ่าย
+Tax Withholding Category,ประเภทภาษีหัก ณ ที่จ่าย
+Withholding tax deducted by customer,ภาษีหัก ณ ที่จ่ายที่ลูกค้าหักไว้
+Tax Withholding Category {0} has no account for Company {1},ประเภทภาษีหัก ณ ที่จ่าย {0} ไม่มีบัญชีสำหรับบริษัท {1}
+Account {0} not found for Company {1},ไม่พบบัญชี {0} สำหรับบริษัท {1}
+Please set Tax Withholding Category on {0} {1} or on this Payment Entry,กรุณาระบุประเภทภาษีหัก ณ ที่จ่ายใน {0} {1} หรือในรายการชำระเงินนี้
+Tax ID,เลขประจำตัวผู้เสียภาษี
+Tax Id,เลขประจำตัวผู้เสียภาษี
+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)
+"Royalties, goodwill, copyright, other rights - Sec. 40(3), juristic payee (P.N.D.53)",ค่าแห่งกู๊ดวิลล์ ค่าลิขสิทธิ์ หรือสิทธิอย่างอื่น - มาตรา 40(3) ผู้รับเป็นนิติบุคคล (ภ.ง.ด.53)
+"Interest - Sec. 40(4)(a), juristic payee excl. banks/finance companies (P.N.D.53)",ดอกเบี้ย - มาตรา 40(4)(ก) ผู้รับเป็นนิติบุคคล ยกเว้นธนาคาร/บริษัทเงินทุน (ภ.ง.ด.53)
+"Interest - Sec. 40(4)(a), individual payee, Sec. 50(2) (P.N.D.2)",ดอกเบี้ย - มาตรา 40(4)(ก) ผู้รับเป็นบุคคลธรรมดา มาตรา 50(2) (ภ.ง.ด.2)
+"Dividends, share of profits - Sec. 40(4)(b) (P.N.D.2 / P.N.D.53)",เงินปันผล เงินส่วนแบ่งของกำไร - มาตรา 40(4)(ข) (ภ.ง.ด.2 / ภ.ง.ด.53)
+"Rent of property, hire-purchase of movable property - Sec. 40(5) (P.N.D.3 / P.N.D.53)",ค่าเช่าทรัพย์สิน ค่าเช่าซื้อสังหาริมทรัพย์ - มาตรา 40(5) (ภ.ง.ด.3 / ภ.ง.ด.53)
+Rent of ships under the Merchant Marine Promotion Act - Sec. 40(5) (P.N.D.53),ค่าเช่าเรือตามกฎหมายว่าด้วยการส่งเสริมการพาณิชยนาวี - มาตรา 40(5) (ภ.ง.ด.53)
+"Law, medicine, engineering, architecture, accounting, fine arts - Sec. 40(6) (P.N.D.3 / P.N.D.53)",วิชาชีพอิสระ กฎหมาย การประกอบโรคศิลปะ วิศวกรรม สถาปัตยกรรม การบัญชี ประณีตศิลปกรรม - มาตรา 40(6) (ภ.ง.ด.3 / ภ.ง.ด.53)
+"Contract work, contractor supplies essential materials - Sec. 40(7) (P.N.D.3 / P.N.D.53)",ค่ารับเหมาที่ผู้รับเหมาต้องลงทุนจัดหาสัมภาระในส่วนสำคัญ - มาตรา 40(7) (ภ.ง.ด.3 / ภ.ง.ด.53)
+"Hire of work, service fees - Sec. 40(8) (P.N.D.3 / P.N.D.53)",ค่าจ้างทำของ ค่าบริการ - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+"Rewards, discounts, sales promotion benefits - Sec. 40(8) (P.N.D.3 / P.N.D.53)",รางวัล ส่วนลด หรือประโยชน์ใด ๆ เนื่องจากการส่งเสริมการขาย - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+Advertising fees - Sec. 40(8) (P.N.D.3 / P.N.D.53),ค่าโฆษณา - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+"Transport of goods or passengers, excl. public transport - Sec. 40(8) (P.N.D.3 / P.N.D.53)",ค่าขนส่งสินค้าหรือผู้โดยสาร ยกเว้นการขนส่งสาธารณะ - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+Non-life insurance premiums - Sec. 40(8) (P.N.D.53),ค่าเบี้ยประกันวินาศภัย - มาตรา 40(8) (ภ.ง.ด.53)
+"Prizes from contests, competitions, lucky draws - Sec. 40(8) (P.N.D.3 / P.N.D.53)",รางวัลจากการประกวด การแข่งขัน การชิงโชค - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+Public entertainers resident in Thailand - Sec. 40(8) (P.N.D.3),นักแสดงสาธารณะที่มีภูมิลำเนาในประเทศไทย - มาตรา 40(8) (ภ.ง.ด.3)
+"Rubber, cassava, jute, rice, maize, sugarcane, coffee beans, oil palm - Sec. 40(8) (P.N.D.3 / P.N.D.53)",ยางแผ่น มันสำปะหลัง ปอ ข้าว ข้าวโพด อ้อย เมล็ดกาแฟ ปาล์มน้ำมัน - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+Aquatic animals bought from non-registered sellers - Sec. 40(8) (P.N.D.3 / P.N.D.53),สัตว์น้ำที่ซื้อจากผู้ขายที่ไม่ได้จดทะเบียนภาษีมูลค่าเพิ่ม - มาตรา 40(8) (ภ.ง.ด.3 / ภ.ง.ด.53)
+"Sale of immovable property, juristic seller - Sec. 69 Ter (remitted at the Land Office)",การขายอสังหาริมทรัพย์ ผู้ขายเป็นนิติบุคคล - มาตรา 69 ตรี (นำส่ง ณ สำนักงานที่ดิน)
+Sec. 40(2)-(6) income paid to non-resident individuals - Sec. 50(2) (P.N.D.3),เงินได้ตามมาตรา 40(2)-(6) จ่ายให้บุคคลธรรมดาที่มิได้เป็นผู้อยู่ในประเทศไทย - มาตรา 50(2) (ภ.ง.ด.3)
+"Sec. 40(2)-(6) income excl. dividends to foreign companies not doing business in Thailand - Sec. 70, pre-DTA (P.N.D.54)",เงินได้ตามมาตรา 40(2)-(6) ยกเว้นเงินปันผล จ่ายให้บริษัทต่างประเทศที่มิได้ประกอบกิจการในประเทศไทย - มาตรา 70 ก่อนใช้อนุสัญญาภาษีซ้อน (ภ.ง.ด.54)
+"Dividends to foreign companies not doing business in Thailand - Sec. 70, pre-DTA (P.N.D.54)",เงินปันผลจ่ายให้บริษัทต่างประเทศที่มิได้ประกอบกิจการในประเทศไทย - มาตรา 70 ก่อนใช้อนุสัญญาภาษีซ้อน (ภ.ง.ด.54)
+Sales Invoice,ใบแจ้งหนี้
+Sales Order,ใบสั่งขาย
+Posting Date,วันที่
+Payment Due Date,วันครบกำหนดชำระ
+Contact Person,ผู้ติดต่อ
+Mobile No,โทรศัพท์มือถือ
+Contact Email,อีเมล
+Description,รายละเอียด
+Rate,ราคาต่อหน่วย
+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

default_thai_company/utils.py

@@ -1,6 +1,30 @@
 import frappe
+import frappe.utils
 from erpnext import get_default_company
 from frappe.contacts.doctype.address.address import get_default_address, render_address
+from num2words import num2words
+
+
+def money_in_words(amount, currency):
+	"""Amount in words for 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":
+		try:
+			return num2words(amount, lang="th", to="currency", currency=currency)
+		except NotImplementedError:
+			pass
+	return frappe.utils.money_in_words(amount, currency)
+
+
+def get_in_words(doc):
+	"""`in_words` for print formats: re-derived in the print language instead
+	of the language of whoever saved the document."""
+	amount = abs(doc.grand_total if doc.is_rounded_total_disabled() else doc.rounded_total)
+	return money_in_words(amount, doc.currency)
 
 
 def get_letter_head_company(doc=None):

default_thai_company/vat.py

@@ -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)