Tax situations are highly individual. The information below is intended to give you an overview of the key issues so you can have an informed conversation with qualified tax advisers. Always seek professional advice before making decisions about your tax residency or obligations. We are not tax advisers.
Tax is the question every expat in Phuket eventually has to face properly. The good news: for most UK and Australian expats who establish clean non-residency in their home country, the tax position in Thailand is favourable. The complications come from home-country obligations that don't simply disappear when you leave, the 2024 Thai foreign income rule change, and the interaction between systems.
This guide gives an overview organised by nationality — UK, US, and Australian — plus coverage of the Thai tax system that applies to everyone.
From 1 January 2024, Thailand changed its rules on foreign income. Income earned overseas and remitted to Thailand in the same calendar year it is earned is now potentially taxable in Thailand for Thai tax residents (those spending 180+ days per year in Thailand). Previously, only income remitted in a later year was taxed. This change significantly affects expats who fund their Thai lifestyle from ongoing overseas income or investments. LTR visa holders are exempt from this rule.
The Thai Tax System: What You Need to Know
Thailand operates a self-assessment income tax system. Tax residents are individuals who spend 180 or more days in Thailand in a calendar year. Thai tax residents are taxable on Thailand-source income and, from January 2024, also on foreign income remitted to Thailand in the same year it was earned.
Thai personal income tax rates 2026
| Taxable Income (THB/year) | Tax Rate |
|---|---|
| 0 – 150,000 | Exempt |
| 150,001 – 300,000 | 5% |
| 300,001 – 500,000 | 10% |
| 500,001 – 750,000 | 15% |
| 750,001 – 1,000,000 | 20% |
| 1,000,001 – 2,000,000 | 25% |
| 2,000,001 – 5,000,000 | 30% |
| 5,000,001+ | 35% |
Thailand has personal deductions that reduce taxable income — expenses deduction, personal allowance (฿60,000), spouse/dependent allowances, insurance premiums, provident fund contributions, and Long-Term Equity Fund investments. Effective rates are typically lower than headline rates for most expats. Last updated: March 2026.
Thailand's Double Tax Agreements (DTAs)
Thailand has DTAs with 61 countries including the UK, USA and Australia. These agreements determine which country has primary taxing rights over specific types of income and prevent the same income from being taxed twice. Understanding your relevant DTA is essential — and complex enough that a specialist adviser is worth the cost.
UK Expats in Phuket: Tax Overview
The UK taxes individuals based on residency, not citizenship. If you become non-resident for UK tax purposes, you generally pay UK tax only on UK-source income, not on income earned elsewhere.
Establishing non-residency under the Statutory Residence Test (SRT)
The UK's SRT (introduced 2013) determines residency through a series of tests based on days in the UK, ties to the UK (home, employment, family, 90-day rule), and whether you are "working abroad full-time". The most straightforward route to non-residency is spending fewer than 16 days in the UK per year if you have 4+ UK ties, or up to 45 days in the UK if you have no UK ties. Intermediate situations require careful analysis.
What UK expats may still owe the UK
- UK rental income: Taxable in the UK even as a non-resident. You must register with HMRC's Non-Resident Landlord Scheme.
- UK state pension: Taxable in the UK under the UK-Thailand DTA (Article 18). You receive it gross but must declare it to HMRC.
- UK occupational/private pensions: Generally taxable in the UK, not Thailand, under the DTA.
- UK dividends: UK withholding tax at 0–33.75% depending on source, with DTA relief potentially available.
- Capital gains on UK property: Non-residents who sell UK residential property must file a UK non-resident capital gains return within 60 days of completion.
UK National Insurance for expats
If you want to protect your UK State Pension entitlement (requiring 35 qualifying years of NI contributions), you can make voluntary Class 2 or Class 3 NI contributions while living abroad. Class 2 contributions (for those who worked in the UK before leaving) cost approximately £3.45/week (2024/25 rate). The decision depends on your current entitlement years and planned retirement age — worth checking via the UK Government Gateway website.
US Expats in Phuket: Tax Overview
The USA is one of only two countries (with Eritrea) that taxes citizens on worldwide income regardless of residence. There is no clean break from US tax by moving to Thailand — unless you formally renounce US citizenship, which has its own tax consequences.
Key US filing obligations for Phuket residents
- Form 1040: Annual US federal tax return, due 15 April (automatic 2-month extension to 15 June for Americans abroad, with further extension to 15 October available)
- FBAR (FinCEN 114): Required if total value of foreign financial accounts exceeds $10,000 at any point during the year. Your Thai bank accounts count. Due 15 April, auto-extension to 15 October.
- FATCA (Form 8938): Required if foreign assets exceed thresholds ($200,000 for single taxpayers abroad at year-end, or $300,000 at any point during the year).
- Form 2555 (FEIE): To claim the Foreign Earned Income Exclusion — up to $126,500 of earned income (2024 figure) excluded from US tax if you meet the physical presence test (330+ days outside USA per year) or bona fide residence test.
The US-Thailand Double Tax Agreement
The US and Thailand have a DTA (Convention Signed 26 November 1996). Key provisions: Thai-source income is generally taxable by Thailand first; the US provides a foreign tax credit (Form 1116) for Thai taxes paid on Thai-source income; pension income is covered under Article 20. Specialist US expat tax advisers (CPAs with international experience) are worth the investment — FBAR and FATCA penalties for non-compliance are severe.
Australian Expats in Phuket: Tax Overview
Australia, like the UK, uses a residency-based tax system. Australian non-residents pay Australian tax only on Australian-source income (with different rates than residents). Establishing non-residency is the goal for most Australian expats — but Australia's residency rules are notoriously complex and have been tightened through case law over the years.
Establishing Australian non-residency
Australia does not have a simple day-count test. The ATO uses a "domicile test" (where is your permanent home?) and a "resides test" (do you ordinarily reside in Australia?). Key factors include: establishing a permanent home in Thailand (lease, utility accounts, community ties), maintaining no permanent home in Australia (selling or long-term renting your Australian property), and demonstrating continuity of intention to remain abroad.
What Australian expats may still owe Australia
- Australian rental income: Non-residents pay Australian tax at 32.5% on rental income from the first dollar (no tax-free threshold). The Australian-Thai DTA provides relief against double taxation.
- Australian dividends: Subject to 30% withholding tax, reducible to 15% under the DTA for residents of Thailand.
- Capital gains on Australian property: Non-residents are not eligible for the 50% CGT discount on Australian property after 8 May 2012. Foreign resident capital gains withholding (12.5%) is collected at settlement on properties over AUD$750,000.
- Superannuation: You can generally leave your super in Australia while abroad. Accessing it at preservation age (60) is possible from Thailand; the taxation depends on your fund and component. Get advice specific to your fund.
The LTR Visa Tax Advantage
Thailand's Long-Term Resident (LTR) visa includes a significant tax benefit: LTR visa holders are exempt from the 2024 foreign income remittance rule and pay a flat 17% tax rate on qualifying income, compared to the standard progressive scale (up to 35%). For high-earning remote workers or retirees with substantial investment income, the LTR tax benefit alone can more than offset the visa cost. See the LTR visa guide for Phuket for eligibility details.
Finding a Tax Accountant in Phuket
For Thai tax compliance, Phuket has accountants experienced with expat situations. The Phuket Revenue Department (Samnakngarn Sungkhakon Changwat Phuket) is located on Narisara Road in Phuket Town — but for anything complex, a private accountant is a much better starting point.
For UK, US or Australian compliance, you need a home-country specialist — ideally one who understands the Thai context. Several UK and Australian expat tax advisory firms offer remote services specifically for expats in Southeast Asia. US expat CPAs are the most specialised category given the complexity of US worldwide taxation.
We can point you to vetted accountants familiar with UK, US and Australian expat situations in Phuket. Ask us — first question is free →
The broader Thai income tax guide covers the full Thai tax system including deductions, filing process and the Revenue Department. The Banking hub covers the financial infrastructure you'll need — KBank account setup, Wise for transfers, and how to manage money across currencies.
