Capital crypto gains are untaxed, trading profits are not.
Tax on this gain
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Your breakdown
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The question that decides your crypto tax bill
Hong Kong has no capital gains tax. That single fact makes crypto attractive here, but it does not mean every crypto profit is tax-free. The dividing line is capital versus revenue. If you bought a coin as a long-term investment and later sold it for more, the gain is capital in nature and falls outside tax entirely. If your activity amounts to a trade, frequent buying and selling, running a crypto business, operating with the hallmarks of a dealer, the profit is revenue and the Inland Revenue Department can assess it to profits tax. This calculator shows both outcomes on the same gain so you can see what the classification is worth.
Nobody gets to simply tick the box they prefer. Whether you are trading or investing is judged on the facts: how often you transact, how long you hold, whether you borrow to buy, how organised and commercial the activity looks, and your stated intention at purchase. These are the badges of trade, and they are applied to crypto the same way they are applied to shares or property.
A $300,000 gain, two outcomes
Suppose you bought for $200,000 and sold for $500,000, a $300,000 gain. As a genuine investor the gain is capital, so the tax is zero and you keep the whole $500,000. Treated as a trade by an individual, the gain is revenue and faces unincorporated profits tax. The rate this calculator applies is 7.5 percent on the first $2 million of profit, so the $300,000 gain attracts $22,500 of tax, leaving $477,500. The classification, not the maths, is what costs you the $22,500.
Trading inside a company, and what the rate is not
If you run crypto activity through a Hong Kong company, the calculator switches to the corporate two-tier rates, 8.25 percent on the first $2 million and 16.5 percent above, because a company's trading profit is corporate profits tax. Note what is absent from the whole picture: there is no separate crypto tax, no withholding on disposals, no sales tax or GST on the trade, and no tax at all if the activity is investment rather than trading. The number the tool shows for trading is profits tax and nothing more. All these rates are the calculator's 2025/26 assumptions, and crypto tax guidance evolves, so confirm both the rates and the current view on digital-asset classification with the Inland Revenue Department before you rely on a position.
Common questions
I mine or stake crypto, not just buy and sell. Is that different?
Generally yes. Mining and staking rewards look more like income from an activity than like a passive capital gain, so the receipts are more likely to be revenue and assessable to profits tax, with related costs deductible. The same goes for crypto received as payment for goods, services or employment, which is taxed on its value when you receive it. This calculator models a simple buy-and-sell gain; reward income and payment-in-kind sit outside it and usually fall on the taxable side of the line.
If most of my trades are losses, can I claim them?
Only if you are on the revenue side. A genuine trader who is assessed to profits tax can set trading losses against trading profits, because the activity is symmetrical: if gains are taxable, losses are deductible. An investor whose gains are tax-free cannot claim losses, for the same reason in reverse, there is nothing to relieve against. So the classification cuts both ways, and a heavy-loss year is one of the few times the trading label is the cheaper one.