One of the most common questions from crypto investors is: “If I sell Bitcoin at a profit, do I have to pay tax?” The good news is that from 2025 the Thai government introduced a 5-year personal income tax exemption on gains from selling digital assets. But the exemption comes with important conditions. If you use the wrong channel, your gains may still be taxed as normal.
This article summarizes crypto tax in Thailand for 2026 in plain language: which cases are exempt, which are not, and which records to keep, so you can invest in digital assets with peace of mind and within the law.
What Kind of Income Are Crypto Gains?
Under Thailand’s Revenue Code, gains from transferring cryptocurrencies or digital tokens above your invested amount are assessable income under Section 40(4). In principle, they must be included in your personal income tax calculation at progressive rates.
However, the government has issued a tax exemption to encourage investors to trade through legal channels, which is the focus of this article.
The 5-Year Crypto Gains Tax Exemption (2025–2029)
Ministerial Regulation No. 399 (B.E. 2568 / 2025) provides that income from transferring digital assets that meets the conditions is treated as equal to the amount actually invested. In other words, the profit portion is not counted for tax.
Conditions You Must Meet
- Period: applies to income received from 1 January 2025 to 31 December 2029.
- Channel: the sale or transfer must go through a digital asset exchange or digital asset broker, or be a transfer to a digital asset dealer, licensed under Thailand’s digital asset business law.
- Taxpayer: applies to individuals.
So if you trade Bitcoin or USDT through a platform licensed by the Thai SEC during this period, your gains qualify for the exemption.
What Is Not Exempt?
The exemption covers only transfers through licensed providers in Thailand. The following cases are likely not to qualify:
- Trading on overseas platforms that are not licensed in Thailand
- Private P2P or OTC trades between individuals that do not go through a licensed provider
- Swaps on DeFi or DEX platforms
- Lending returns or other yields that are not gains from a sale
- Staking or mining rewards, which the regulation does not clearly address. Wait for guidance from the Revenue Department.
⚠️ Income that does not meet the exemption conditions must still be taxed as normal, and foreign-sourced income brought into Thailand may be taxable under Revenue Department rules.
Tax Treatment by Trading Channel
| Trading channel | Gains exempt 2025–2029 |
|---|---|
Exchange / broker / dealer Regulated by the Thai SEC. Keep your trading records for tax filing. | Exempt |
Overseas platforms Not licensed in Thailand, with both tax and fund-safety risks. | Not exempt |
Private P2P / OTC Risk of receiving funds from mule accounts and money laundering. | Not exempt |
DeFi / DEX Hard to trace the origin of transactions. | Not exempt |
What Should Investors Prepare Before Filing?
Even if your gains are exempt, keeping complete records means you are always ready to explain the source of your funds.
- Download your transaction history from the platform every year.
- Keep separate records for trades on Thai platforms and trades made elsewhere.
- Keep proof of cost, such as baht deposits and the purchase price of each trade.
- File PND 90 or PND 91 as usual for your other income, by the Revenue Department deadline (usually the end of March of the following year, with an extension for online filing).
- Consult a tax professional if you have income from staking, mining or overseas platforms.
Why Trading on a Licensed Platform Pays Off
- Tax exemption on gains under Ministerial Regulation No. 399
- Greater safety through identity verification (KYC) and a regulator
- THB deposits and withdrawals through a bank account in your own name, so the source of funds is clear
- Complete trading records that make tax filing easy
Frequently Asked Questions About Crypto Tax
Do I pay tax if I sell Bitcoin at a profit in 2026?
If you sell through an exchange, broker or dealer licensed in Thailand, your gains are exempt from personal income tax under Ministerial Regulation No. 399, which covers income from 1 January 2025 to 31 December 2029.
Are gains from selling USDT exempt?
USDT is a digital asset. If you sell it through a licensed provider in Thailand, the same conditions apply.
Are gains on overseas platforms exempt?
No. The exemption covers only providers licensed under Thai law, so those gains are still taxed as normal.
Invest in Crypto Legally and Get the Full Tax Benefit
The 5-year crypto gains tax exemption is a major opportunity for Thai investors, but you only get it when you trade through a platform licensed in Thailand. Keep complete records and follow Revenue Department announcements.
Open your Maxbit account today to trade Bitcoin, USDT and other digital assets on a platform regulated by the Thai SEC.
Note: This article is general information, not tax or legal advice. Information is as of November 2026 and the rules may change. Please check with the Revenue Department or a tax professional before making decisions.
Risk warning: Cryptocurrencies and digital tokens are highly risky. You may lose your entire investment. Please study and understand the risks before deciding to invest.
