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Personal Income Tax
Personal income tax (PIT) in Thailand is charged on a progressive scale from 0% to 35%, with the first THB 150,000 of net income exempt. Anyone in Thailand for 180 days or more in a tax year is a tax resident, taxed on Thai-sourced income and on foreign income brought into Thailand. Annual returns (PND90/91) are filed by the end of March. True Bizz handles PIT for individuals and employers in Bangkok.
What is Personal Income Tax in Thailand?
Thailand imposes Personal Income Tax (PIT) on both residents and non-residents. PIT is based on the person's assessable income derived from employment or business undertaken in Thailand, regardless of whether the income was earned inside or outside of the country. Additionally, residents of Thailand are taxed on any income that is remitted into Thailand in the year in which it is received. Tax residents in Thailand are legally required to pay and file PIT returns every year.

How does Personal Income Tax work in Thailand?
Personal Income Tax (PIT) is a direct tax levied on the income of a person. A person means an individual, an ordinary partnership, a non-juristic body of a person, and an undivided estate. In general, a person liable to PIT has to compute his tax liability, file a tax return and pay tax, if any, accordingly on a calendar year basis. Income chargeable to the PIT is called "assessable income". The term covers income both in cash and in kind. Therefore, any benefits provided by an employer or other persons, such as a rent-free house or the amount of tax paid by the employer on behalf of the employee, is also treated as assessable income of the employee for PIT. Assessable income is divided into 8 categories as follows:
- Income from personal services rendered to employers
- Income by jobs, positions, or services rendered
- Income from goodwill, copyright, franchise, other rights, annuity, or income like yearly payments derived from a will or any other juristic Act or judgment of the Court
- Income like dividends, interest on deposits with banks in Thailand, shares of profits or other benefits from a juristic company, juristic partnership, or mutual fund, payments received as a result of the reduction of capital, a bonus, an increased capital holding, gains from amalgamation, acquisition or dissolution of juristic companies or partnerships, and gains from transferring of shares or partnership holdings
- Income from letting of property and from breaches of contracts, installment sales, or hire-purchase contracts
- Income from liberal professions
- Income from construction and other contracts of work
- Income from a business, commerce, agriculture, industry, transport or any other activity not specified earlier
How is income tax calculated in Thailand?
Thailand makes use of a progressive tax system for personal income tax. The tax year in Thailand ends on December 31, and any due tax filings and payments must be submitted by March 31 of the following year. Personal income tax filings may be submitted by paper or online. For income derived from renting property, the liberal professions, and all income that falls within these activities; business, commerce, agriculture, transportation, etc, the taxpayer must also file a half-yearly tax return on September 30. These taxes may be redeemed as tax credits at the end of the year.

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Prepare and file the annual Personal Income Tax return and payment.
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Answering questions about the personal Income Tax process.
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Advise on post-payment compliance.
How It Works
Calculate the yearly income & assess the Personal Income Tax amount
Our experts will calculate your yearly income, apply reductions and assess the amount of personal income to be paid.
1 business dayPrepare & File the Annual Personal Income Tax Return
Our experts prepare and file the annual personal income tax return with the Revenue Department.
1 business dayFrequently Asked Questions
What are the personal income tax rates in Thailand?
PIT is progressive: 0% up to THB 150,000, then 5%, 10%, 15%, 20%, 25%, 30% and 35% on the highest band. Allowances and deductions reduce taxable income.
Who is a tax resident in Thailand?
Anyone present in Thailand for 180 days or more in a calendar year. Tax residents are taxed on Thai-sourced income and on foreign income they bring into Thailand.
When is personal income tax filed?
Annual PIT returns (PND90 or PND91) are due by 31 March for the previous year (slightly later for online filing). We compute and file on your behalf.
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