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Thailand Tax
The honest answer is: it depends on residency, remittance, and your home country's treaty with Thailand. Here's how the pieces fit together.
Under Thailand's Revenue Code, a pension paid from overseas employment is treated as assessable income, the same broad category as salary or freelance earnings. That single fact surprises a lot of retirees who assume "pension" sits in some protected category of its own. It doesn't — but whether you actually owe anything on it depends on three separate questions.
If you spent fewer than 180 days in Thailand during the year the pension was paid, this entire question is moot — non-residents aren't taxed on foreign income at all. See the 180-Day Rule.
Since 1 January 2024, any foreign income remitted into Thailand by a tax resident is potentially assessable, regardless of which year it was originally earned. Money that stays in an overseas account and is never transferred in isn't taxed by Thailand.
Thailand has double taxation agreements with 61 countries. Many treat government or occupational pensions differently to state pensions, and some give the taxing right entirely to your home country. This is genuinely treaty-specific — see Double Taxation.
A proposal has been floated that would exempt foreign income remitted within two tax years of being earned, but as of mid-2026 this has not been enacted into law — it was paused after the dissolution of the House of Representatives and is not something to plan around yet. The rules currently in force are the ones described on this page.
In practice, a common and entirely legal approach is to keep the bulk of a pension in an overseas account and remit only what's needed to cover living costs in Thailand, rather than transferring the full amount as soon as it's paid. This doesn't make the remitted portion tax-free — it simply keeps the amount actually brought into Thailand, and therefore the amount potentially assessable, smaller and easier to track.
Worth doing
Get a written opinion from a Thai tax adviser on how your specific pension type is treated under your home country's treaty with Thailand — the difference between a government pension and a private occupational pension can genuinely change the outcome. This is not a page to make that call from alone.
This page explains general principles as understood in mid-2026 and is not personalised tax advice. Pension taxation depends heavily on the specific treaty between Thailand and your home country — always confirm your position with a qualified Thai tax professional.