- 22 Oct 2025
- Elara Crowthorne
- 1
Thailand Crypto Tax Calculator
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Based on Thailand's 2025-2029 crypto tax rules for domestic residents and foreign entities
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If you’ve heard talk about a "15% gains tax" on crypto in Thailand, you’re probably mixing two very different rules. The reality is that Thailand now offers a 5‑year personal income tax exemption for crypto capital gains on approved exchanges, while a separate 15% withholding tax still applies to foreign entities earning crypto income in the country.
Why the confusion matters
Understanding the split between the domestic exemption and the foreign withholding tax can save you from costly mistakes. Mis‑reporting a tax‑free gain as taxable (or vice‑versa) can trigger penalties from the Thai Revenue Department.
What the law actually says
Thailand cryptocurrency tax is governed by Ministerial Regulation No. 399 (B.E. 2568), published in the Royal Gazette on 5 September 2025 and effective from 1 January 2025 to 31 December 2029. The regulation creates a five‑year personal income tax exemption for capital gains earned from the sale or transfer of digital tokens, but only when the transaction occurs on a SEC‑licensed digital asset exchange that is authorized by the Thai Securities and Exchange Commission.
Before this exemption, crypto gains were taxed like any other capital gain, ranging from 0% to 35% depending on the taxpayer’s total annual income. Companies faced corporate income tax rates up to 20%.
Who benefits from the 5‑year exemption?
- Thai residents who trade on a licensed exchange or broker.
- Individuals (not companies) who realise profit from buying and selling crypto tokens.
- Investors who can prove that every trade happened on a platform listed in the SEC’s registry.
The exemption does not cover earnings from:
- Unlicensed platforms, including international exchanges.
- Peer‑to‑peer (P2P) sales, decentralized exchanges (DEXs), or DeFi swaps.
- Staking rewards, lending interest, or derivative contracts.
For those excluded activities, regular personal income tax rates still apply.
The 15% withholding tax - who pays it?
Separate from the domestic exemption, Thailand imposes a 15% withholding tax on crypto income earned by foreign entities. This rule applies when a non‑resident company provides crypto‑related services within Thai jurisdiction, such as operating a crypto exchange platform for Thai users.
The withholding tax is deducted at source and remitted to the Thai Revenue Department, meaning the foreign entity receives net proceeds after the 15% is taken off.
Key limitations you must watch
Even with the exemption, the Thai Revenue Department expects meticulous record‑keeping. You’ll need to:
- Log every transaction date, amount, and exchange used.
- Separate qualifying trades (on SEC‑licensed platforms) from non‑qualifying ones.
- Calculate net gains or losses for each tax year.
- Report the exempted portion on your personal income tax return, just to document compliance.
Failure to differentiate can lead to a retroactive tax assessment on the entire gain.
Practical tax‑planning tips
- Trade only on approved platforms. Verify the exchange’s SEC licence before opening an account.
- Consider timing gains to fall within the exemption window (2025‑2029). Gains realised after 31 December 2029 will be taxed under the standard rates.
- Use tax‑loss harvesting: sell under‑performing assets to offset gains from qualifying trades.
- Keep a separate ledger for DeFi activities, staking, or P2P sales-they remain taxable.
- Consult a Thai‑qualified tax adviser if you have mixed activities (both exempt and taxable).
Side‑by‑side comparison
| Aspect | Domestic Residents (Qualified Trades) | Foreign Entities |
|---|---|---|
| Tax rate on capital gains | 0% (exempt for 2025‑2029) | 15% withholding at source |
| Applicable platforms | SEC‑licensed exchanges/brokers only | Any platform serving Thai market, but tax withheld |
| Reporting requirement | Declare exempted gains on personal return | Withholding tax filed by payer; entity may claim credit |
| Other crypto income (staking, lending) | Taxed as ordinary income (rates 0‑35%) | Subject to standard corporate tax (up to 20%) |
What the future could hold
Deputy Finance Minister Julapun Amornvivat expects the exemption to spur about $1 billion in annual economic activity. The policy is set to expire at the end of 2029, and the government has said it will review the framework based on market response. Keep an eye on any proposed extensions or new guidelines, especially around DeFi and staking, which are still gray areas.
Quick checklist before you file
- Confirm your exchange has a valid SEC licence.
- Export transaction history (CSV) for the entire tax year.
- Separate exempt and taxable activities.
- Calculate net capital gains for exempt trades.
- Include a note on your personal tax return that the gains are covered by Regulation 399.
Frequently Asked Questions
Do I still need to file a tax return if all my crypto trades are exempt?
Yes. You must still file a personal income tax return and state that the gains are covered by the 5‑year exemption. This provides a paper trail in case the Revenue Department asks for proof.
Can I use an overseas exchange and still claim the exemption?
No. Gains from unlicensed or foreign platforms are outside the exemption and are taxed at your marginal personal rate.
What happens after 31 December 2029?
The exemption ends, and capital gains will be subject to the standard progressive rates (0%‑35%). The government may introduce a new regime, so stay tuned.
Is staking income taxed?
Current guidance treats staking rewards as ordinary income, so they fall under the regular personal tax brackets.
How does the 15% withholding tax affect a foreign crypto exchange operating in Thailand?
The exchange must deduct 15% from any Thai‑sourced crypto revenue before remitting it to the foreign parent. The foreign entity can claim a credit in its home‑country tax filing, depending on double‑taxation agreements.
Bottom line: the 15% figure you’ve heard about isn’t a universal gains tax - it’s a specific withholding rule for non‑residents. Thai residents trading on approved platforms enjoy a full tax exemption until 2029, but they must stay disciplined about record‑keeping and platform choice. Miss one of those steps, and the exemption disappears fast.
1 Comments
🚀🚨 TL;DR: Thailand's crypto tax landscape splits into a 5‑year exemption for SEC‑licensed exchange trades and a 15% withholding on foreign‑entity revenues. Stay on approved platforms, keep meticulous ledgers, and you’ll dodge the bite. 📊💡