Thailand Tax 2026: The Complete Guide for Foreigners and Residents

Thailand's tax system is not as simple as expat forums make it sound, and not as frightening as accountants sometimes imply. The rules are clear once you understand a few fundamentals who counts as a tax resident, what income is assessable, and what changed in 2024. This guide covers all of it, in order, without jargon.

Your Situation Start Here

The relevant tax rules depend on your situation. Jump to the section that fits you most.

Do Foreigners Have to Pay Tax in Thailand?

The 180-day residency rule

Thailand determines tax residency based on physical presence, not visa type or nationality. If you spend 180 days or more in Thailand in a calendar year (1 January to 31 December), you are a Thai tax resident for that year. This applies to everyone US citizens, UK nationals, Australians, and every other nationality regardless of what visa they hold.

Tax residency is assessed year by year. You can be a resident in 2025 and a non-resident in 2026 if your time in Thailand differs. There is no registration process or declaration required residency status is determined by where you actually are.

What counts as Thai-source income

Tax residents are liable on income from Thai sources. This includes employment income paid by a Thai employer, business income from a Thai operation, rental income from Thai property, and interest and dividends from Thai financial instruments. Non-residents are taxed only on Thai-source income. How that income is taxed depends on its type: some is taxed through withholding at source, and some must be reported on a return at the progressive rates.

The 2024 foreign income rule change what changed and what didn't

Before 2024, a common and widely-practised interpretation of Thai tax rules meant that foreign income could be brought into Thailand tax-free as long as it was earned in a different calendar year. In September 2023, the Thai Revenue Department issued Ruling Por 161/2566, which closed this interpretation. Foreign-source income that arises on or after 1 January 2024 is assessable in the year it is brought into Thailand, whichever year that is. Full explanation of the 2024 rule change →

Thailand Income Tax Rates & Brackets 2026

Thailand taxes residents' income at progressive rates from 0% to 35%. The rates apply to net taxable income: your assessable income after the expense deduction, personal and family allowances, and other deductions. The first 150,000 THB of net taxable income is exempt, and each higher band is taxed at a higher rate, so your effective rate is always lower than your top (marginal) rate.

Common allowances include 60,000 THB for yourself, 60,000 THB for a spouse with no income, and 30,000 THB per eligible child (60,000 THB for the second and each later child born in 2018 or later). The dedicated guide sets out every band, allowance and deduction with worked examples.

Full Thailand tax rates, bands and deductions →

Thailand Tax on Foreign Income

The 2024 rule change is the most consequential development in Thai tax for foreign residents in decades. In short: if you are a Thai tax resident (180+ days in Thailand) and you remit foreign-source income to Thailand, that income is now assessable for Thai PIT in the year you remit it. This applies to employment income from overseas, pension payments, rental income from foreign property, investment income, and most other income types.

The key exceptions are: income and savings earned before 1 January 2024; income protected under a double tax treaty; and foreign income of LTR Work-from-Thailand Professional, Wealthy Global Citizen and Wealthy Pensioner holders, which is exempt under Royal Decree 743. The foreign income guide explains the details.

Full guide: Thailand tax on foreign income the 2024 rule change explained →

The US–Thailand Tax Treaty

The United States and Thailand have a full income tax convention, signed in 1996 and in force from 1998. Key points for American residents of Thailand:

• US Social Security: taxable only in the United States (Article 20(2)), so Thailand does not tax it.
• Private pensions (for example 401(k) or IRA distributions): generally taxable in the country where you are resident (Article 20(1)).
• US government salaries and pensions: generally taxable only by the United States (Article 21).
• Saving clause: the US still taxes its citizens on worldwide income (Article 1). Double taxation is relieved mainly through the foreign tax credit (Article 25). The Foreign Earned Income Exclusion applies to earned income only, not to pensions or investment income.

Full US–Thailand tax treaty guide →

Thailand VAT What You Need to Know

VAT rate in Thailand

Thailand's VAT rate is 7%. The legal rate is 10%, but a reduced 7% rate has been extended repeatedly and currently applies until 30 September 2027. VAT is applied to most goods and services sold in Thailand. It is included in the shelf price in shops but is typically added separately in B2B transactions.

Tourist VAT refund

Visitors who are not Thai nationals, are not domiciled in Thailand and are leaving by air from an international airport can claim back VAT on eligible goods. Purchases must total at least 2,000 THB (VAT included) at the same store on the same day, and the goods must leave Thailand within 60 days of purchase. Shop at stores showing the "VAT Refund for Tourists" sign, ask for the P.P.10 form when you pay, then follow the airport procedure: the goods and forms are checked before check-in, and the refund is paid at the VAT refund counter.

Full guide: How to claim your Thailand VAT refund →

Thailand Property Tax

Thailand introduced the Land and Buildings Tax (LBT) in 2020, replacing the older House and Land Tax and Local Development Tax. LBT is an annual tax on land and building ownership, assessed on the official appraised value of the property. Rates are low by international standards, and a home you own and live in can qualify for an exemption on part of its value. The exemption depends on ownership and house registration, so check the property tax guide for how it applies to you.

When property is transferred, the Land Office collects a 2% transfer fee (who pays is agreed between buyer and seller) and withholding tax from the seller. Specific Business Tax of 3.3% applies if the seller sells within 5 years of acquiring the property, unless an exemption applies (for example the seller has been in the house registration for at least 1 year, or inherited the property). Where Specific Business Tax does not apply, stamp duty of 0.5% is due instead.

Full Thailand property tax guide →

Thailand Tax ID Number

A Thai Tax Identification Number (TIN) is a 13-digit number issued by the Thai Revenue Department. You need one to file a tax return, to claim VAT refunds as a business, and in some cases to open certain types of Thai bank accounts. Thai citizens automatically receive a TIN linked to their national ID. Foreigners apply at their local Revenue Department district office, bringing a passport, visa, and proof of address.

How to get a Thailand tax ID number →

Withholding Tax in Thailand

Under the withholding tax system, the payer deducts tax at source before paying certain types of income. The rate depends on who receives the income.

Individuals: Thai dividends are usually subject to 10% withholding and bank interest to 15%; for these you can often choose to treat the withholding as final instead of including the income in your return. Rent paid to you by a company is subject to 5% withholding, and service fees paid by a company are usually subject to 3%. The payer gives you a withholding certificate (50 Tawi), and the tax withheld is credited against your annual PIT when you file.

Foreign companies not carrying on business in Thailand: interest, royalties and service fees paid to them are generally subject to 15% withholding, and dividends to 10%. This is usually a final tax. A double tax treaty may reduce these rates.

Specialty Tax Topics

Crypto tax in Thailand

Thailand now provides a specific personal income tax exemption for qualifying crypto and digital-token gains made through licensed Thai digital-asset businesses from 2025 to 2029. This does not make every form of crypto income tax-free. Other gains and digital-asset income may still be taxable under the normal Thai rules, depending on the type and source of the income, the taxpayer’s residence status and, for foreign-source income, whether it is brought into Thailand. Full crypto tax guide →

Capital gains tax

Thailand does not have a separate standalone capital gains tax. Gains from the sale of assets are assessed as ordinary personal income, subject to the progressive PIT rates. Gains individuals make selling Thai-listed shares through the Stock Exchange of Thailand are generally exempt. Gains from selling Thai property are subject to withholding tax at the point of transfer.

Inheritance and gift tax

Thailand introduced inheritance tax in 2016. Each heir pays 10% on the value received above 100 million THB (5% for ascendants and descendants). Gifts are taxed at 5% on the amount above 20 million THB a year where they come from a parent, child or spouse, and above 10 million THB a year from anyone else; some gifts, such as those for customary occasions, are exempt.

Filing Your Thai Tax Return

Thai PIT returns for the tax year (January to December) are due by 31 March of the following year on paper. The Revenue Department usually allows extra time for online filing, but it announces the extended date each year, so check rd.go.th before relying on it. A half-year return (PND 94) is due by 30 September for certain income, such as rent and business or professional income, received from January to June. Having tax withheld by your employer does not remove the duty to file: you must file if your income exceeds the threshold, for example 120,000 THB of salary in the year if you are single (220,000 THB if married).

Full filing guide: forms, deadlines, and how to file online →

Special Visa Categories and Tax Treatment

LTR Visa the tax exemptions

LTR Work-from-Thailand Professional, Wealthy Global Citizen and Wealthy Pensioner holders are exempt from Thai PIT on foreign-source income brought into Thailand under Royal Decree 743. LTR Highly Skilled Professionals can pay a flat 17% rate on qualifying employment income from an eligible Thai employer instead of the progressive rates. The LTR tax guide covers the conditions. These are significant, legally codified benefits not rumours or grey-area interpretations.

DTV what the tax picture looks like

The DTV visa carries no specific tax exemptions. DTV holders who spend 180+ days in Thailand in a calendar year are Thai tax residents subject to the standard PIT rules, including the 2024 foreign income rules. Full visa-by-visa tax guide →

Thailand Elite Visa

The Thailand Elite visa (now Thailand Privilege Visa) carries no specific tax exemptions. Holders are assessed as tax residents in the same way as any other foreigner based on their days in Thailand.

Frequently Asked Questions

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