Thailand's 2024 remittance rule: what changed and what it means for your pension
Thailand amended its foreign income remittance rules in 2024, removing an exemption that many expats had relied on for years. Combined with the UK-Thailand DTA pension article and the LTR visa exemption, the current position is more complex than most expats in Thailand appreciate. This page maps it out.
Get Treaty-Specific AdviceThe UK-Thailand DTA: scope and residency rules
The double taxation agreement between the United Kingdom and Thailand was concluded in 1981 and updated through a protocol in 2019. It is an older treaty by OECD standards, and it covers income from employment, business profits, dividends, interest, royalties, pensions, and capital gains.
Thailand taxes individuals on income from sources in Thailand, and on foreign-sourced income remitted to Thailand in the year it is received. The 2024 rule change modified this: from 1 January 2024, the prior-year deferral approach (under which income earned in year one but remitted in year two was exempt from Thai personal income tax) was abolished. Foreign income is now taxable on remittance to Thailand regardless of when it was earned, subject to treaty protections and specific exemptions for certain visa categories.
Thailand personal income tax applies to resident individuals at progressive rates from 5% to 35%. Tax residency is determined by physical presence of 180 days or more in Thailand in a tax year. Non-residents pay Thai tax only on Thai-sourced income.
For British expats who have been long-term residents of Thailand and were relying on the prior-year deferral approach to manage remittances tax-efficiently, the 2024 change is material. Income that was legitimate to remit tax-free under the old rules may now be taxable on remittance under the new framework, unless the DTA provides protection or a specific visa exemption applies.
UK pension income under the treaty and the 2024 rules
Under the UK-Thailand DTA, private pension income (SIPP, personal pension, private sector occupational pension) paid to a Thailand tax resident is taxable in Thailand, with the UK ceding taxing rights for non-residents consistent with the OECD pension article. Government and civil service pensions remain taxable in the UK.
Under the post-2024 framework, private pension income from the UK remitted to Thailand is treated as foreign income received in Thailand and is subject to Thai personal income tax. There is no longer a timing deferral available. The income is taxable in the year of remittance.
The DTA does not eliminate the Thai tax. It prevents double taxation by providing a credit mechanism: if UK tax is paid on income that Thailand also taxes, the UK tax is credited against the Thai liability. For private pension income where the UK correctly applies the treaty and pays gross to the non-resident, there is no UK tax to credit. The Thai tax applies to the full drawdown amount.
Thai personal income tax rates on pension income above THB 5 million per year reach 35%. For most expats drawing SIPP income in the range equivalent to GBP 50,000 to GBP 150,000 per year, the effective Thai rate would typically be in the 15% to 25% range depending on total chargeable income. This compares unfavourably with the Singapore position and, for some income structures, with the Malaysia position under the FSI exemption.
| Chargeable Income (THB) | Thai Personal Income Tax Rate |
|---|---|
| 0 to 150,000 | Exempt |
| 150,001 to 300,000 | 5% |
| 300,001 to 500,000 | 10% |
| 500,001 to 750,000 | 15% |
| 750,001 to 1,000,000 | 20% |
| 1,000,001 to 2,000,000 | 25% |
| 2,000,001 to 5,000,000 | 30% |
| Above 5,000,000 | 35% |
The Long-Term Resident visa and its tax treatment
Thailand's Long-Term Resident (LTR) visa was introduced in 2022. It targets four categories: wealthy global citizens, wealthy pensioners, work-from-Thailand professionals, and highly skilled professionals. The Wealthy Pensioner category requires documented passive income of at least USD 80,000 per year (or USD 40,000 with a health insurance policy and a Thai property purchase).
LTR visa holders receive specific income tax benefits from the Thai Revenue Department. Foreign-sourced income remitted to Thailand by LTR visa holders is subject to a flat personal income tax rate of 17%, rather than the standard progressive rates of up to 35%. This is a flat rate on all assessable foreign income, not a progressive calculation.
Critically, the Royal Decree governing LTR visa holders appears to provide exemption from the general foreign income remittance rules that apply to ordinary Thai tax residents. The precise scope of this exemption, particularly following the 2024 rule change, requires verification with a Thai tax adviser, as the interaction between the Royal Decree and the 2024 amendment has been a source of uncertainty in the market.
For LTR Wealthy Pensioner visa holders receiving UK SIPP income above USD 80,000 per year, the 17% flat rate on foreign remittances represents a meaningful advantage over the standard progressive rate schedule. Whether the 2024 remittance changes fully apply to LTR holders in the same way they apply to other residents is a question that requires professional assessment based on the specific income structure and any subsequent Revenue Department guidance.
The LTR visa tax position and its interaction with the 2024 remittance rule change has been subject to ongoing interpretation in Thailand. This page reflects the position as understood at the time of writing. Verify current guidance with a qualified Thai tax adviser before making remittance decisions.
Dividend, interest, and royalty rates under the UK-Thailand treaty
| Income Type | Domestic Rate | Treaty Rate | Notes |
|---|---|---|---|
| Dividends (UK source to Thai resident) | 0% (UK no WHT) | N/A | UK pays no dividend WHT |
| Interest (UK source to Thai resident) | 20% | 25% (treaty ceiling) | Domestic rate applies in this case |
| Royalties (UK source to Thai resident) | 20% | 15% (treaty) | Treaty reduces domestic rate |
| Private pension (SIPP) | 20% basic rate if no NT code | 0% UK (treaty Art. 17) | Taxed in Thailand on remittance |
| Interest (Thai source to UK resident) | 15% Thai WHT | 25% (treaty ceiling, domestic lower) | Domestic 15% applies |
The UK-Thailand treaty interest rate provision is less favourable than most of the UK's modern treaties, as the ceiling rate of 25% in the treaty is above the Thai domestic withholding rate of 15%. In practice, the domestic rate applies since it is lower. British expats in Thailand receiving UK interest income should apply the UK NT (No Tax) coding for amounts exempt under the treaty, and declare the interest in Thailand subject to the standard progressive rate schedule or the LTR flat rate if applicable.
For comprehensive cross-country comparisons, see the UK-Malaysia DTA and UK-Singapore DTA pages.
The 2024 rules changed the planning picture in Thailand
If you are based in Thailand and have not reviewed your remittance and pension income position since the 2024 rule change, the analysis is overdue. A 30-minute session maps your current exposure and identifies what needs to be addressed.
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Key provisions of the UK-Thailand DTA in a format you can actually use.