Thailand now taxes foreign income: what changed for expats

For years, Thailand had one of the simplest tax setups for anyone earning money abroad. Earn it this year, wait until next year to transfer it, pay nothing. Millions of expats, retirees, and remote workers built their financial lives around this.

That loophole closed on January 1, 2024. And the proposed fix for 2026? Still sitting in draft form. Which is frustrating, because a lot of people made life decisions based on the assumption that Thailand would always work this way.

Here's what actually happened, what it means for you right now, and what you should be doing about it.

The old rule (and why everyone loved it)

Before 2024, Thailand only taxed foreign income if you brought it into the country during the same calendar year you earned it.

So the workaround was obvious. Earn money in 2022. Transfer it to your Thai bank in 2023. Zero Thai tax. Legal, clean, and widely used. It made Thailand one of the easiest places in the world to live on overseas earnings.

What changed

On September 15, 2023, the Thai Revenue Department issued Departmental Order No. Por. 161/2566. It rewrote the interpretation of Section 41, Paragraph 2 of the Revenue Code.

The short version: starting January 1, 2024, all foreign income remitted to Thailand is taxable, regardless of when you earned it. If you're a Thai tax resident and you move money into the country, you owe tax on it.

A follow-up order (Por. 162/2566) added one important detail: the new rule only applies to income earned on or after January 1, 2024. Anything you earned before that date is still covered by the old system.

So money you made in 2022 and transfer to Thailand in 2026? Not taxable. Money you made in 2024 or later and bring in at any point? Taxable.

That distinction matters. Keep records that clearly show when each income source was earned. Your brokerage statements and bank records are your evidence.

Who counts as a tax resident

You're a Thai tax resident if you spend 180 days or more in the country during a calendar year. Note the number: 180, not the 183 you see in most other countries.

The days don't need to be consecutive. Every day between January 1 and December 31 counts. Stay under 180, and none of this applies to you. Your foreign income stays untaxed in Thailand no matter how much you remit.

The tax rates

Thailand uses progressive income tax across eight brackets:

| Net income (THB) | Rate | |---|---| | 0 to 150,000 | 0% | | 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% | | Over 5,000,000 | 35% |

At current rates, THB 5,000,000 is roughly USD 140,000. Anything above that gets taxed at 35%.

Your first THB 150,000 of net income (about USD 4,200) is exempt. That's not much of a buffer if you're remitting a pension, dividends, or freelance income.

The proposed 2026 relief (don't hold your breath)

The Revenue Department has drafted a rule that would soften the impact. Under the proposal, foreign income would be exempt from Thai personal income tax if you remit it in the same year you earned it, or in the year after.

Basically a two-year window. Earn income in 2025, bring it to Thailand in 2025 or 2026, no tax. The draft is expected to cover income earned from 2024 onward and would apply from the 2026 tax year.

The problem: as of April 2026, this has not been enacted. It still needs Cabinet approval and Council of State review before it becomes a ministerial regulation. That process has been "expected soon" for months.

I wouldn't plan my finances around a rule that doesn't exist yet. If it passes, great, you'll get some breathing room. If it stalls or gets watered down, you're still liable under the 2024 rules. Plan for the worst, adjust if the news is good.

Double tax agreements

Thailand has DTAs with over 60 countries, including the US, UK, Australia, Germany, Japan, and Singapore. If you already paid tax on your foreign income where you earned it, you may be able to claim a credit against your Thai bill. The credit is generally capped at whatever the Thai rate would be for that income.

The specific terms vary by treaty, though, so you can't just assume your DTA covers you. You need to actually read the one between Thailand and your country. I've seen people get surprised by how different the provisions are depending on the income type (pension vs. dividends vs. freelance earnings, for example).

And here's the part that trips people up: having a DTA doesn't exempt you from filing. You still report the income on your Thai return and claim the credit there.

What to do right now

Count your days. If you're anywhere near 180 days in Thailand this calendar year, every additional day matters. Cross that line and everything you remit from foreign sources becomes taxable.

Separate your pre-2024 and post-2024 income. Money earned before January 1, 2024 is still protected. Keep documentation showing when each source was generated. Don't mix these funds in the same account if you can help it.

Track every remittance. Every transfer into a Thai bank account from overseas is a potential taxable event. ATM withdrawals from foreign cards count too. So does carrying cash across the border. If money moves from outside Thailand to inside Thailand, assume it's on the record.

Don't rely on the grace period. The two-year exemption is a proposal. File based on the rules that exist today.

And get a Thai tax advisor. This is no longer something you can wing. Your situation depends on residency status, income sources, applicable DTAs, and how you structure remittances. The cost of professional advice is just part of living here now.

Common questions

I'm a digital nomad on a tourist visa. Do these rules affect me? Only if you hit 180 days in Thailand during a calendar year. Under that, you're fine.

Does income from before 2024 get taxed? No. Departmental Order Por. 162/2566 is clear on this. Income earned before January 1, 2024 falls under the old rules. If you earned it in 2022 and transfer it in 2026, no Thai tax.

What counts as remitting income? Broadly: any movement of foreign funds into Thailand. Wire transfers, credit card charges on overseas accounts, ATM withdrawals on foreign debit cards, physical cash. All of it.

Will the two-year grace period pass? Probably. But "probably" isn't law, and as of April 2026 it hasn't been enacted. I wouldn't build a tax strategy on it.

Can I offset Thai tax with what I paid at home? Depends on whether Thailand has a DTA with your country and what type of income is involved. You'd claim a foreign tax credit on your Thai return. Talk to an advisor about the specifics for your situation, because the treaty provisions can be surprisingly different from what you'd expect.

Sources

• Thai Revenue Department - Personal Income Tax - Thai Revenue Department
• Thai Revenue Department - Withholding Tax - Thai Revenue Department
• PwC Thailand, Individual Taxes on Personal Income - PwC
• KPMG, Further Guidelines on Foreign-Sourced Income Brought into Thailand - KPMG
• Forvis Mazars, Revenue Department's Guidance on Foreign Sourced Income - Forvis Mazars
• Forvis Mazars, Thailand Considering to Ease Tax Rules on Foreign-Sourced Income - Forvis Mazars
• Mahanakorn Partners, Overview of Orders Por.161 and Por.162 - Mahanakorn Partners
• Nishimura & Asahi, Thai Revenue Dept Proposes Tax Exemption - Nishimura & Asahi

Always consult a qualified tax professional or immigration lawyer for advice specific to your situation.

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Jetseen tracks your days across countries and warns you before you hit a tax threshold. Start free at jetseen.com.