Bitcoin capital gains tax calculator
Your capital gain on a sale is what you received minus what you paid and the fees, and the tax is a rate applied to the part of the gain that is taxable. This calculator does that sum with the rate and allowance you enter. It has no country's rules built in, because they differ and change, so use the figures your tax authority publishes. Bitcoin was 74,861 USD on November 8, 2026.
- Tax
- 990 USD
- Gain
- 4,950 USD
- Taxable amount
- 4,950 USD
- Left after fees and tax
- 13,960 USD
- Tax as a share of the gain
- 20.0%
Worked example
Sell bitcoin for 15,000 USD that cost 10,000 USD to buy, with 50 USD in fees: the gain is 4,950 USD. At a tax rate of 20% and no allowance, the tax is 990 USD, and you keep 13,960 USD after fees and tax.
How it works
Gain = proceeds − cost − fees. Taxable amount = gain − allowance, and not below zero. Tax = taxable amount × your rate. After-tax amount = proceeds − fees − tax. Effective rate = tax ÷ gain. A loss gives no tax here. The calculator treats one sale on its own: it does not match several purchases to a sale, carry losses forward or apply a holding period, since the rules for those differ by country.
Your country's rules decide
Which purchase counts as sold, whether a long holding is taxed less, what the allowance is, and whether swapping one coin for another is a sale are all set by your tax authority. Our country tax guides explain what each authority has published. This page is not tax advice: ask a qualified adviser about your own case.
Frequently asked questions
How do I calculate capital gains on bitcoin?
Subtract what you paid and the fees from what you received. If the result is positive, that is your gain, and the tax is the part above any allowance times your rate. Enter your figures above to see each step.
What is the tax rate on bitcoin gains?
It depends on your country, how long you held, and sometimes your income. Nothing is assumed here: enter the rate your tax authority publishes. The country tax guides on this site list what each one has said.
Do I pay tax if I sell bitcoin at a loss?
Usually not on that sale, and some countries let a loss reduce other gains. Rules differ, so check yours. The calculator shows a loss as a loss and a tax of zero.
More bitcoin tools
These tools are for information, not financial advice. An exchange quotes its own price, which includes its spread and fees.
Sources
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