Free Thai Tax Calculator
Professional tax calculation tool for accurate estimates of your Thai tax liability
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Essential Information About Thai Tax Regulations and Requirements
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Tax Calendar
Deadline | Description |
---|---|
7 Feb 2025 | Withholding tax on remuneration |
17 Feb 2025 | Income tax withheld at source |
24 Feb 2025 | VAT return for January |
27 Feb 2025 | Corporate income tax return |
31 Mar 2025 | Corporate income tax return |
8 Apr 2025 | Annual personal income tax return |
Tax Calendar 2025
Deadline | Form/Report | Description |
---|---|---|
7 February 2025 | Por Ngor Dor 1 | Withholding tax on remuneration paid to employees in January 2025. |
17 February 2025 | Por Ngor Dor 2 | Income tax withheld at source for income paid to individuals under Section 40 (3), (4) in January 2025. |
24 February 2025 | Por Por 30 | Value Added Tax (VAT) return for January 2025. |
27 February 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 30 September 2024. |
31 March 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 31 October 2024. |
8 April 2025 | Por Ngor Dor 90/91 | Annual personal income tax return for individuals with assessable income in 2024. |
29 April 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 30 November 2024. |
30 June 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 31 January 2025. |
31 August 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 31 March 2025. |
30 September 2025 | Por Ngor Dor 94 | Mid-year personal income tax return for income under Section 40 (5)-(8) during January to June 2025. |
29 December 2025 | Por Ngor Dor 50 | Annual corporate income tax return for companies with accounting periods ending 31 July 2025. |
Tax Resources
Latest tax guides and updates

Thailand Foreign Income Tax Guide 2025: Complete Analysis for Expats and Residents

Thailand Property Tax Guide 2025: Essential Updates for Property Owners

Thailand Digital Nomad Tax Guide 2025: Complete Analysis
Additional Deductions Information
Child Allowance
Deduction of ฿30,000 per child. This applies to biological children with no maximum limit, and up to three adopted children.
Health Insurance
Deduction up to ฿25,000 for health insurance premiums paid for yourself. The insurance policy must be from a provider registered in Thailand.
Provident Fund
Contributions to a provident fund are deductible up to 15% of income, with a maximum of ฿500,000 per year when combined with other retirement funds.
Easy e-Receipt 2.0
Shop with participating vendors to receive up to ฿30,000 VAT deduction and ฿20,000 for community enterprise purchases.