Banking & Finance

Thai Income Tax for Phuket Expats 2026

The 2024 rule change explained, tax rates, double tax treaties and what every long-stay expat in Phuket must understand.

By Phuket Expat Guide Updated March 2026 12 min read
Important: This page is general information only — not tax advice. Thai tax law is complex and individual circumstances vary significantly. Consult a qualified Thai tax adviser before making decisions. This guide is designed to help you understand the landscape and ask the right questions.

⚠️ The 2024 Rule Change — Act Now If You Haven't

From 1 January 2024, Departmental Instruction Paw 161/2566 changed when foreign-source income remitted to Thailand becomes taxable. The old strategy of deferring income to the following year no longer works. If you've been spending 180+ days per year in Thailand and transferring foreign money in, you may now have a filing obligation.

The Phuket Revenue Department is on Phraya Nakharin Road (076-212120). Tax year runs January–December; filing deadline is typically end of March the following year.

Are You a Thai Tax Resident?

The threshold is simple: spend 180 days or more in Thailand in any calendar year and you are a Thai tax resident. Days are counted regardless of visa type — tourist, retirement, LTR, Elite, it doesn't matter. If you're in Thailand for 180+ days, you're a tax resident.

As a Thai tax resident you are required to file a Thai personal income tax return (PND 90 or PND 91) by the end of March for the previous calendar year. You are liable for Thai tax on: income earned in Thailand, and — since 2024 — foreign-source income remitted to Thailand in the same year it was earned.

The Paw 161/2566 Rule Change Explained

Before 2024, the Thai Revenue Department's interpretation allowed foreign income to be remitted to Thailand tax-free if it was earned in a prior year. Many expats used a simple strategy: earn income in year 1, leave it offshore, remit in year 2. This was legal and widely practised.

From 1 January 2024, Departmental Instruction Paw 161/2566 removed this distinction. Now, foreign-source income remitted to Thailand is assessed as taxable in the year it was earned — regardless of when it is actually transferred into the country. If you earned ฿1 million in 2025 and remit it to Thailand in 2026, it is still treated as 2025 income for Thai tax purposes.

What still isn't taxable: Pre-2024 savings (income earned before 1 January 2024) are not affected by Paw 161 if remitted now. The old rule still applies to old savings. Only income earned from 1 January 2024 onwards is subject to the new rule. This distinction is important — keep records of when income was earned.

Thai Personal Income Tax Rates 2026

Taxable Income (THB)RateTax on BandCumulative Tax
0 – 150,0000%฿0฿0
150,001 – 300,0005%฿7,500฿7,500
300,001 – 500,00010%฿20,000฿27,500
500,001 – 750,00015%฿37,500฿65,000
750,001 – 1,000,00020%฿50,000฿115,000
1,000,001 – 2,000,00025%฿250,000฿365,000
2,000,001 – 5,000,00030%฿900,000฿1,265,000
Over 5,000,00035%

Taxable income is calculated after allowances and deductions. The standard personal allowance is ฿60,000/person. A spouse allowance of ฿60,000 is available. Employment income deduction: 50% up to ฿100,000. Pension income deduction: 50% up to ฿100,000. These significantly reduce the effective tax rate for many expats.

Double Tax Treaties (DTAs) for Phuket Expats

Thailand has DTAs with 61 countries. A DTA generally ensures you don't pay tax twice on the same income — it allocates taxing rights between Thailand and your home country. The key countries with DTAs are the UK, Australia, Germany, France, Canada (some provinces), Japan, Singapore, Hong Kong, and most EU countries.

CountryDTA with Thailand?Key Points
United Kingdom✅ YesUK pensions taxed only in UK; employment income protections available
Australia✅ YesSuper/pension issues remain complex; ATO cooperation with Thai RD
Germany✅ YesGerman state pension typically exempt from Thai tax under DTA Art. 18
France✅ YesFrench pension typically taxed only in France under DTA
Netherlands✅ YesDutch AOW pension protected under DTA
Japan✅ YesDividend and royalty protections available
Singapore✅ YesKey for digital business structures
United States❌ No DTAPotential double taxation — see US section below
Canada✅ YesGovernment pensions protected; RRSP treatment complex
Sweden / Norway / Denmark✅ Yes eachNordic pension protections generally strong
US expats in Phuket: The USA has no DTA with Thailand. US citizens are taxed on worldwide income by the IRS regardless of where they live. If you also become a Thai tax resident, you face potential double taxation. The Foreign Earned Income Exclusion (FEIE, ~$126,500 in 2025) helps but doesn't cover investment income, rental income, or Social Security. Get specialist US-Thailand tax advice.

How Your Visa Type Affects Tax

Visa TypeTax Residency RiskKey Tax Point
Non-OA RetirementHigh (90+ day residents usually become 180-day residents)Foreign pension remittances now taxable under Paw 161 if earned post-2024
LTR Wealthy Global / PensionerHighForeign income tax exemption under BOI LTR scheme — major advantage
LTR WFT ProfessionalHigh17% flat rate on Thai employment income; potential foreign income exemption
DTV (Digital Nomad)Medium–HighIf 180+ days in Thailand, full Thai tax resident; DTV confers no tax exemption
Thailand EliteHighElite visa confers no tax exemption — tax determined by days in country
Non-B + Work PermitHighThai employment income fully taxable; employer usually withholds
Tourist/Visa Exemption (short stay)LowUnder 180 days per year — not a Thai tax resident

The LTR Visa Tax Advantage

The LTR (Long-Term Resident) visa is the one visa type with a genuine tax advantage. Under the BOI LTR scheme:

If you're a high earner and planning to spend significant time in Phuket long-term, the LTR visa's tax concessions can be worth more than the cost of the visa application itself. See the LTR Visa Guide for full details.

What to Do — Practical Checklist

Looking for a Visa That Includes Tax Benefits?

The LTR visa offers the strongest tax advantages for qualifying expats in Phuket. Full details in our LTR guide.

LTR Visa Guide →

Thai Tax FAQs for Phuket Expats

Who has to pay income tax in Thailand?
Anyone spending 180+ days in Thailand in a calendar year is a Thai tax resident and must file a return. This applies regardless of visa type.
What changed with the 2024 Thai tax rule?
Paw 161/2566 (effective 1 January 2024) means foreign-source income is now taxable when remitted to Thailand based on when it was earned, not when it's transferred. The prior-year deferral strategy no longer works for post-2024 income.
How do double tax treaties work for Phuket expats?
DTAs with 61 countries (including UK, Australia, most EU) allocate taxing rights so you don't pay twice. Employment income taxed at source is typically protected. DTAs don't apply automatically — you need to claim treaty benefits. US expats have no DTA and face particular complexity.
Do US expats in Phuket have to pay Thai tax?
Potentially yes — the US has no DTA with Thailand and US citizens face double taxation risk. The FEIE provides partial relief but doesn't cover investment income, rental income or Social Security. Get specialist US-Thailand tax advice.
What is the LTR visa tax advantage?
LTR WFT Professional holders pay a flat 17% on Thai employment income. LTR Wealthy Global/Pensioner holders may qualify for foreign income exemption. It's one of the few Thai visas with genuine tax concessions built in.

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