Question 1

Do I pay tax on money I bring to Thailand when I move here?

Accepted Answer

Whether money you bring into Thailand is taxable depends on whether it is income or capital. Capital — savings you accumulated before becoming a Thai tax resident — is generally not assessable income and is not taxed when brought in. Income — money you earned — that is remitted (transferred, withdrawn, or spent) in Thailand is taxable if you are a Thai tax resident (present in Thailand for 180 or more days in a year). Since January 2024, this applies regardless of when the income was earned. If you are moving to Thailand for the first time, document the source of any large transfers (bank statements, pay slips, investment records) to demonstrate that the funds are pre-residency savings rather than current income.

Question 2

Do I need to notify my home country's tax authority when I move to Thailand?

Accepted Answer

Usually yes. In the UK, you notify HMRC of your departure using form P85 and must meet the conditions of the Statutory Residence Test to establish UK non-residency. In Australia, you notify the ATO and your residency status is assessed based on your intentions and connections. In the US, you remain a US taxpayer regardless of where you live — there is no process to leave US taxation, though the Foreign Earned Income Exclusion and Foreign Tax Credit reduce your US liability. For most other countries, there is a formal process to de-register or establish non-residency, and failure to notify can result in continued home-country tax obligations running alongside your Thai obligations.

Question 3

Can I keep my money in a foreign bank account to avoid Thai tax?

Accepted Answer

Yes — if you are a Thai tax resident, income that remains in a foreign account and is never brought into Thailand is not assessable for Thai tax. Thailand's system is based on the remittance principle for foreign income: only income that is remitted (transferred, withdrawn, or used) in Thailand is taxable. A remittance includes wire transfers to a Thai bank account, ATM withdrawals in Thailand from a foreign account, and credit or debit card purchases in Thailand charged to a foreign account. Money sitting in a foreign account that you never access in Thailand is not remitted and is not taxed here.

Question 4

What is the difference between Thai tax residency and having a Thai tax ID?

Accepted Answer

Tax residency and a Tax Identification Number (TIN) are two different things. Thai tax residency is a legal status — you become a Thai tax resident automatically once you have spent 180 or more days in Thailand in a given calendar year. A TIN is a practical tool: a 13-digit number issued by the Revenue Department that you use when filing tax returns, claiming refunds, or issuing invoices as a freelancer. You need to apply for a TIN in person at a Revenue Department district office (with your passport, visa, and proof of address). You can be a tax resident without yet having a TIN, and you can have a TIN without currently being a tax resident.

Question 5

Do retirees get a special tax exemption in Thailand?

Accepted Answer

Yes. If you are aged 65 or over at the end of the tax year, the first 190,000 THB of your assessable income is completely exempt from personal income tax under Section 42(17) of the Revenue Code. Combined with the standard personal allowance (60,000 THB) and the 0% first tax bracket (150,000 THB), a retiree aged 65+ can receive up to approximately 400,000 THB before paying any Thai income tax.

Question 6

Is my foreign pension taxable in Thailand?

Accepted Answer

If you are a Thai tax resident (180+ days in Thailand) and you transfer your foreign pension to Thailand, it is assessable income since the 2024 rule change. Tax treaties between Thailand and your home country may allow you to claim a credit for tax already paid abroad, reducing or eliminating double taxation. If you leave pension money in an overseas account without remitting it to Thailand, it is not taxable here.

Question 7

Is UK State Pension taxable in Thailand?

Accepted Answer

For Thai tax residents, the UK State Pension is generally taxable in Thailand as your country of residence under the UK-Thailand Double Tax Agreement. UK private pensions are also taxable in Thailand. However, UK government service pensions (for civil servants, military, some teachers) are taxable only in the UK, not Thailand. You can claim a foreign tax credit for any UK tax withheld. Many retirees consider applying to HMRC for gross payment of their pension if they are Thai tax residents, to avoid UK withholding tax that then requires claiming back.

Question 8

Is US Social Security taxable in Thailand?

Accepted Answer

This is complex. Under the US-Thailand DTA, Social Security may be taxable in Thailand as your country of residence. However, the US also taxes its own citizens on worldwide income regardless of where they live, creating a risk of double taxation. US citizens should use the Foreign Tax Credit on their US return to offset US tax with Thai tax paid, and vice versa. Given the complexity, US citizen retirees in Thailand should consult a specialist in US expat taxation.

Question 9

Do retirees need to file a Thai tax return?

Accepted Answer

Yes, if you are a Thai tax resident (180+ days) and your assessable income exceeds the filing threshold. For pension or salary income, the threshold is 120,000 THB for single individuals or 220,000 THB for married couples. For investment or rental income, it is 60,000 THB (single) or 120,000 THB (married). Note that the 65+ exemption reduces your assessable income by 190,000 THB before the thresholds apply, meaning many retirees with modest income will owe no tax but may still need to file.

Question 10

What is the LTR Wealthy Pensioner visa and how does it affect tax?

Accepted Answer

The Long-Term Resident (LTR) Wealthy Pensioner visa is a 10-year visa for retirees aged 50+ with USD 80,000 or more in annual pension/passive income (or USD 40,000+ with USD 250,000 in Thai assets). Unlike the standard Non-OA retirement visa, LTR Wealthy Pensioner holders receive a complete exemption from Thai tax on all foreign-sourced income — pensions, investments, rental income from abroad. There is no need to track remittances or claim foreign tax credits. The application fee is 50,000 THB.

Question 11

Does holding a Thai retirement visa (Non-OA) reduce my tax?

Accepted Answer

No. The Non-Immigrant OA retirement visa provides no tax benefits whatsoever. Your tax obligations are based entirely on how many days you spend in Thailand (the 180-day rule), not on your visa type. If you spend 180+ days in Thailand on a Non-OA visa, you have the same tax obligations as any other Thai tax resident. Only the LTR visa categories provide genuine tax benefits.

Question 12

How is Thai bank interest taxed for retirees?

Accepted Answer

Interest on Thai bank accounts is subject to 15% withholding tax deducted automatically by the bank. You can treat this withholding as your final tax on the interest (simpler), or include the interest on your annual return and claim the 15% as a credit — which may result in a partial refund if your effective tax rate is lower. For retirees aged 65+ with modest income, your effective rate on the first taxable income after allowances is 5%, making a refund possible if you include bank interest in your return.

Question 13

Can I claim my parents as dependants on my Thai tax return?

Accepted Answer

Yes. You can claim a 30,000 THB allowance per parent who is aged 60 or over, is a Thai resident, and has their own income of no more than 30,000 THB per year. You can also claim up to 15,000 THB per parent for health insurance premiums you pay on their behalf. These deductions are in addition to your personal allowance and any other deductions you claim.

Question 14

Are capital gains from selling shares in Thailand taxable for retirees?

Accepted Answer

Capital gains from selling shares listed on the Stock Exchange of Thailand (SET) are exempt from personal income tax for individuals — there is no capital gains tax on Thai listed shares. Capital gains on foreign shares, however, are assessable income if the proceeds are remitted to Thailand.

Question 15

How is tax residency determined in Thailand?

Accepted Answer

You are considered a Thai tax resident if you spend 180 days or more in Thailand during a calendar year. The days do not need to be consecutive. Partial days are generally counted as full days.

Question 16

What happens if I stay less than 180 days?

Accepted Answer

If you stay less than 180 days in a calendar year, you are a non-resident for tax purposes. Non-residents are only taxed on income earned within Thailand, typically at flat rates or through withholding tax.

Question 17

Can I be a tax resident of both Thailand and another country?

Accepted Answer

Yes, dual tax residency is possible. In such cases, tax treaties between countries determine which country has primary taxing rights. You may need to claim foreign tax credits to avoid double taxation.

Question 18

Does my visa type affect my tax residency status?

Accepted Answer

No. Tax residency is determined solely by the number of days you spend in Thailand, not by your visa type. Whether you hold a retirement visa (Non-OA), Thailand Privilege (Elite) visa, tourist visa, or work permit, you become a tax resident after 180 days in a calendar year. Only the LTR visa provides any tax benefit, and that is through a specific income exemption — not a change to residency rules.

Question 19

Do I become a Thai tax resident automatically after 180 days, or do I need to register?

Accepted Answer

Tax residency is automatic — it is a factual status determined entirely by the number of days you are physically present in Thailand, with no registration required. Once you have spent 180 days or more in Thailand during a calendar year, you are a Thai tax resident for that year, whether or not any authority has been notified. However, you do need to obtain a Thai Tax Identification Number (TIN) before you can file a return or claim a refund of excess withholding tax. The TIN must be applied for in person at a Revenue Department district office.

Question 20

What counts as a "day" in Thailand for the 180-day rule?

Accepted Answer

A partial day — any day on which you were physically present in Thailand, even briefly — generally counts as a full day. Both your arrival day and your departure day typically count. For example, arriving on January 15 and departing on July 15 would count 181 days. There is no precise statutory definition of a "day" in the Revenue Code, but Revenue Department practice is to count any calendar day on which you were present. To be conservative, count every day on which you were physically in Thailand at any point.

Question 21

What is the personal allowance in Thailand?

Accepted Answer

Every taxpayer receives a personal allowance of 60,000 THB. This amount is deducted from your assessable income before calculating tax. If your spouse has no income, you can also claim an additional 60,000 THB spouse allowance.

Question 22

Can I deduct insurance premiums?

Accepted Answer

Yes. Life insurance premiums are deductible up to 100,000 THB annually. Health insurance premiums are deductible up to 25,000 THB. Parent health insurance premiums have a separate limit of 15,000 THB.

Question 23

What are SSF and RMF funds?

Accepted Answer

SSF (Super Savings Fund) and RMF (Retirement Mutual Fund) are tax-advantaged investment funds. SSF contributions are deductible up to 30% of income (max 200,000 THB). RMF contributions are deductible up to 30% of income (max 500,000 THB). Combined limits apply.

Question 24

How much can I deduct for children?

Accepted Answer

You can deduct 30,000 THB per legitimate child. An additional 2,000 THB per child is available if the child is studying in Thailand. There is no limit on the number of children you can claim.

Question 25

When is the tax filing deadline in Thailand?

Accepted Answer

The annual tax return (PND 90/91) must be filed by March 31 of the following year. For example, income earned in 2024 must be filed by March 31, 2025. Online filing may extend this deadline by 8 days.

Question 26

Do I need to file if my employer withholds tax?

Accepted Answer

Yes, you should still file an annual return even if your employer withholds tax. Filing allows you to claim additional deductions and potentially receive a refund. It also ensures compliance with Thai tax law.

Question 27

How do I file my tax return?

Accepted Answer

You can file online through the RD Smart Tax app or the Revenue Department website (rd.go.th), or in person at your local Revenue Department office. Online filing is recommended for faster processing.

Question 28

What documents do I need to file?

Accepted Answer

You need your withholding tax certificates (Form 50 Tawi) from employers and banks, personal identification (Thai ID or passport), Tax ID number, and supporting documents for any deductions you claim (receipts, certificates).

Question 29

What is the difference between PND 90 and PND 91?

Accepted Answer

PND 91 is for individuals whose only income is employment income — salary, wages, or pension from a single employer. PND 90 is for everyone else: if you have freelance income, business income, rental income, investment income, foreign income, or income from multiple sources, you use PND 90. In practice, most expats who have any income beyond a single Thai salary should use PND 90. If you are unsure which applies to you, PND 90 is the safe choice as it covers all income types.

Question 30

Can I file my Thai tax return in English?

Accepted Answer

The official PND 90 and PND 91 forms are in Thai only. The Revenue Department's website (rd.go.th) has some English-language guidance, and the RD Smart Tax mobile app provides a guided filing experience with limited English support. In practice, most expats either use a Thai accountant or tax agent to prepare and file in Thai, or use the RD Smart Tax app which walks through fields step by step.

Question 31

Do I need to file a Thai tax return even if I have no tax to pay?

Accepted Answer

If you are a Thai tax resident and your assessable income exceeds the filing threshold — 120,000 THB per year for single individuals with employment or pension income, or 60,000 THB for rental or investment income — you are technically required to file even if deductions and allowances reduce your final tax to zero. In practice, enforcement of filing-without-paying is limited, but it is legally required and best practice to file. If you have excess withholding tax deducted by your employer, you must file to claim a refund.

Question 32

How is monthly withholding tax calculated?

Accepted Answer

Employers estimate your annual income and calculate the annual tax liability. This amount is divided by 12 and withheld monthly. The calculation considers your allowances and deductions you have declared to your employer.

Question 33

Is foreign income taxable in Thailand?

Accepted Answer

For Thai tax residents, foreign income brought into Thailand is taxable. Recent changes require foreign income remitted to Thailand to be declared regardless of when it was earned. Tax treaties may provide exemptions or credits.

Question 34

What income is exempt from tax?

Accepted Answer

The first 150,000 THB of taxable income is exempt. Other exemptions include certain government payments, inheritance (subject to separate rules), and specific investment returns like those from certain government bonds.

Question 35

How are dividends from Thai companies taxed?

Accepted Answer

Dividends from Thai companies are subject to 10% withholding tax deducted at source by the paying company. You can either treat this withholding as your final tax obligation (simpler), or include dividends in your annual return and claim the 10% withholding as a tax credit — which may result in a refund if your overall effective tax rate is lower.

Question 36

Is rental income from property in Thailand taxable?

Accepted Answer

Yes. Rental income from Thai property is assessable income and must be declared on your annual return. You can deduct 30% of gross rental income as a flat-rate expense (no documentation needed), or claim actual rental-related expenses if they are higher and you can document them. Net rental income is then subject to progressive income tax rates.

Question 37

How is rental income taxed in Thailand?

Accepted Answer

Rental income from Thai property is assessable income under Section 40(5) of the Revenue Code. You can deduct 30% of gross rental income as a standard flat-rate expense (no receipts needed), making 70% of your rent your net assessable income. This net income is added to your total income for the year and taxed at progressive rates after your personal allowances. If a company pays you rent, they are required to withhold 5% at source — collect a withholding tax certificate and claim this as a credit on your annual PND 90 return. Individual tenants have no withholding obligation.

Question 38

Does Thailand have a capital gains tax?

Accepted Answer

Thailand does not have a separate capital gains tax in the traditional sense. Capital gains from selling shares listed on the Stock Exchange of Thailand (SET) are exempt from personal income tax for individual investors. For other assets — such as overseas shares, foreign property, or Thai real estate — the treatment is more complex. Proceeds from selling foreign assets that are remitted to Thailand are treated as assessable income subject to progressive rates. When you sell Thai property, Specific Business Tax (3.3% of sale price) applies if the property was held for fewer than 5 years, plus transfer fees — but there is no separate capital gains income tax on top of this.

Question 39

How do I get a tax refund?

Accepted Answer

If you have overpaid tax (common if you have additional deductions not considered in withholding), you will receive a refund after filing your annual return. Refunds are typically processed within 3 months and deposited to your bank account.

Question 40

What if I owe additional tax?

Accepted Answer

If your total tax liability exceeds the amount withheld, you must pay the difference when filing. Payment can be made at the Revenue Department office, through designated banks, or online through the RD Smart Tax app.

Question 41

Are there penalties for late filing or payment?

Accepted Answer

Yes. Late filing incurs a penalty of up to 2,000 THB. Late payment incurs a surcharge of 1.5% per month on the outstanding amount. Interest also accrues on unpaid tax.

Question 42

Do I need a work permit to have a Thai tax obligation?

Accepted Answer

No — tax obligations and work permit requirements are entirely separate. Your tax obligation is determined by your income and your residency status (days in Thailand), not whether you hold a work permit. If a Thai employer withholds income tax from your salary, you already have a tax obligation regardless of your work permit status. Legally working in Thailand as a foreign national requires a work permit issued by the Department of Employment, and working without one is a legal violation — but it does not remove your tax obligation or create one where none existed.

Question 43

My employer is a foreign company with no presence in Thailand. Do I owe Thai tax?

Accepted Answer

If you work remotely in Thailand for a foreign employer that has no Thai entity and does not withhold Thai tax, and you spend 180 or more days in Thailand in a year, you are a Thai tax resident. Income that you remit (transfer or spend) in Thailand is taxable since the 2024 rule change. Even though your employer never interacts with the Thai Revenue Department, you personally are responsible for declaring and paying Thai tax on your remitted income by filing a PND 90 return by 31 March.

Frequently Asked Questions

Expats Moving to Thailand

Pensioners & Retirees

Tax Residency

Deductions & Allowances

Filing & Deadlines

Income & Withholding

Refunds & Payments

Working in Thailand as a Foreigner

Calculate Your Tax

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