On 27 Jan 2017, Revenue Code Amendment Act (No. 44) was gazetted, amending the Thailand personal income tax rates from and including the 2017 tax year.

This Tax Insight has been updated for the rates prescribed in RCAA (No. 44).

Personal Income Tax Rates for Residents

For residents of Thailand (including foreign residents of Thailand), the personal income tax payable on net assessable income* is according to rates of tax on a progressive basis, as follows:

Portion of Net Assessable Income*		Tax Rate for the Portion (2)
For 1st portion up to THB 150,000		Exemption from tax (1)
For 2nd portion THB 150,000 - 300,000		5%
For 3rd portion THB 300,000 - 500,000		10%
For 4th portion THB 500,000 - 750,000		15%
For 5th portion THB 750,000 - 1,000,000		20%
For 6th portion THB 1,000,000 - 2,000,000		25%
For 7th portion THB 2,000,000 - 5,000,000		30%
For 8th portion over THB 5,000,000		35%

* ​Net assessable income is the amount of assessable income after the deduction of expenses and allowances. See the Deductions and Allowances Tax Insight.
(1) As prescribed in Royal Decree (No 470) issued on 28 Mar 2008.
(2) As prescribed in Revenue Code Amendment (No 44) issued on 26 Jan 2017.

Personal Income Tax Rates for Non-Residents

For non-residents, the personal income tax payable is the following one flat rate of tax:

On the amount of assessable income paid

15% WHT (3)

​(3) As prescribed in the Revenue Code for income derived from hire of labor, hire of work (services), rights and annuities, interest, capital gains, rental of property, and professional services, etc.

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