Guides · Money · 3 min read
Taxes for Americans living in Thailand: the basics before you move
The 180-day residency rule, Thailand's tax on foreign income brought into the country, and why you still file in the US. A plain-English overview.
Tax is the question people moving here ask about most, and the one where bad forum advice costs the most. This guide is a starting point, not tax advice: your situation needs a cross-border tax adviser, and we're happy to introduce you to one.
You never stop filing in the US
The US taxes its citizens wherever they live. Moving to Thailand doesn't end your US tax return. What changes is which tools you use to avoid paying twice, such as the Foreign Earned Income Exclusion and foreign tax credits, and the extra forms you may need, such as the FBAR if your foreign accounts together go over US$10,000 at any point in the year.
When Thailand can tax you
You become a Thai tax resident if you spend 180 days or more in Thailand in a calendar year. Days don't need to be in a row.
If you're under 180 days, Thailand generally only taxes income from work done in Thailand.
The rule that changed in 2024
Thai tax residents are taxed on foreign income they bring into Thailand. Before 2024, money brought in during a later year escaped tax. That loophole closed: foreign income earned from January 1, 2024 onward can be taxable in whatever year you bring it into Thailand.
Two things soften this:
- Savings from before 2024 aren't caught by the new rule. Keep records that show when that money was earned: old bank statements, pay stubs, brokerage statements.
- The US-Thailand tax treaty and foreign tax credits can reduce or remove Thai tax on income already taxed in the US.
Thailand has discussed further changes, including exempting income brought in within a year or two of being earned. As of October 2026, none has replaced the current rule.
Exceptions worth knowing
LTR visa holders in the Wealthy Global Citizen, Wealthy Pensioner and Work-from-Thailand Professional categories are exempt from Thai tax on foreign income. Highly-skilled LTR professionals pay a flat 17% on Thai salary.
What to do before you move
- Talk to a US-Thai tax adviser before you move money, not after.
- Keep proof of when your savings were earned.
- Decide whether you'll cross 180 days in your first calendar year. Arriving in October is very different from arriving in January.
- Think about which account you'll live from, and how you'll bring money in.