Thailand answers, taxes
Do American expats pay taxes in Thailand?
The Thai side
The Revenue Department defines a resident as a person in Thailand "for a period or periods aggregating more than 180 days in any tax (calendar) year". A resident is taxed on Thai income and on "the portion of income from foreign sources that is brought into Thailand". Under the rule in force, that means foreign income earned from 1 January 2024, taxed when you remit it, at progressive rates up to 35 percent. Below that line Thailand only taxes Thai-source income, which under Section 41 of the Revenue Code includes work carried on in Thailand, wherever paid. Plan for 179 days.
Our Thai tax guide covers that point.
The US side
The IRS states that a citizen living abroad is generally required to file and pay "in the same way as those residing in the United States". Two mechanisms stop the same income being taxed twice.
| Mechanism | What it does | Figure |
|---|---|---|
| Foreign earned income exclusion | Removes earned income from US tax if you pass the physical presence test (330 full days abroad in 12 consecutive months) or the bona fide residence test | 132,900 USD for tax year 2026, 130,000 USD for 2025 |
| Foreign tax credit | Credits income tax actually paid to Thailand against US tax on the same income | Dollar for dollar on income tax paid abroad |
Greenback Tax Services, a US expat tax firm, prefers the exclusion for most Americans in Thailand because Thai rates are lower, and the credit above the limit or for passive income.
The treaty
The IRS lists the income tax treaty between the United States and Thailand, and its technical explanation, under 1996, and Taxes for Expats says it has applied since 1998. Thailand credits foreign tax only where a treaty allows it, which is why the treaty matters on the Thai return; will I be taxed twice explains how that credit is calculated. Pensions and Social Security benefits follow their own treaty articles, and we do not cover them here.
What catches Americans out
- The FBAR, due when your foreign accounts together exceed 10,000 USD at any time in the year, according to Taxes for Expats.
- FATCA Form 8938, above 200,000 USD at year end or 300,000 USD at any point in the year for a single filer living abroad, according to Greenback.
- Social security. There is no totalization agreement between the two countries, as Taxes for Expats noted on 14 September 2026, and Greenback says self-employed Americans in Thailand pay US self-employment tax at 15.3 percent.
- The exclusion is not automatic: you claim it with Form 2555, on a filed return.
Nothing here is tax advice. Your bill depends on the type of income and the dates you remit, so take your numbers to a US expat tax preparer and to a Thai adviser before you transfer a large sum.
Sources
- Thai Revenue Department, Revenue Code in English, Section 41 (paragraph 1: income from an employment or from business carried on in Thailand is taxed whether paid within or outside Thailand; paragraph 2: a resident's income from an employment or business carried on abroad is taxed upon bringing it into Thailand), accessed .
- Thai Revenue Department, personal income tax (resident at more than 180 days in a calendar year, residents taxed on Thai income and on foreign income brought into Thailand, progressive rates up to 35 percent), accessed .
- IRS, US citizens and residents abroad, filing requirements, reviewed 28 September 2026 (citizens abroad file and pay in the same way as those residing in the United States), accessed .
- IRS newsroom, tax year 2026 inflation adjustments, 9 October 2025 (foreign earned income exclusion of 132,900 USD, up from 130,000 USD for tax year 2025), accessed .
- IRS, foreign earned income exclusion, reviewed 12 June 2026 (physical presence test of 330 full days in 12 consecutive months, bona fide residence test), accessed .
- IRS, Thailand tax treaty documents (income tax treaty and technical explanation, 1996), accessed .
- Greenback Tax Services, expat taxes for Thailand (exclusion usually preferred because Thai rates are lower, foreign tax credit above the limit or for passive income, FBAR at 10,000 USD, FATCA at 200,000 USD at year end or 300,000 USD at any point for single filers abroad, no totalization agreement, self-employment tax of 15.3 percent, residency written as 180 or more days), accessed .
- Taxes for Expats, US tax guide for Americans in Thailand (treaty in effect since 1998, Form 2555, FBAR threshold, no totalization agreement as of 14 September 2026, remittance rule for income earned from 1 January 2024), accessed .
Facts in this answer last verified .
Read the full guide
- Thai tax for digital nomads: the 180-day rule and the remittance basis explained (2026)
Thai tax for digital nomads: the 180-day test, the remittance rule, what Section 41 says about work done in Thailand, 2026 brackets, treaties and filing.