Skip to content

Crypto tax calculator UK

Crypto Capital GainsTax estimator.

A quick, rough estimate of the Capital Gains Tax on one crypto disposal, using HMRC's rates for the tax year you choose. It shows its working and its limits.

For individuals estimating one disposal. Companies pay Corporation Tax on gains, so this estimator does not apply to them.

GBP value when you sold, swapped or spent it.

What you paid for the tokens disposed of.

Salary, self-employed profit, pension and similar. Used to work out how much of the basic rate band is left.

Your estimate

£—

Fill in the form to see an estimate and how it was worked out.

Assumptions and limits.

Rates checked against GOV.UK on 11 October 2026. This is not tax advice, and it is not provided or endorsed by HMRC.

  1. 01One disposal, by an individual who is UK resident.
  2. 02No other gains or losses in the same tax year, so the whole £3,000 annual exempt amount is available.
  3. 03Your income is ordinary taxable income. Savings and dividend income, Gift Aid and pension contributions can change the basic rate band and are not modelled.
  4. 04The cost is already worked out. HMRC's same-day, 30-day and Section 104 pooling rules decide which cost applies, and this tool does not apply them.
  5. 05No reliefs, and no income tax on the original receipt (for example staking or mining rewards).
  6. 06Rates: 18% within the unused basic rate band and 24% above it for disposals from 30 October 2024; 10% and 20% before that date.

Several disposals, swaps between tokens or rewards from staking? Read our guide to crypto Capital Gains Tax in the UK, or ask us to work through your gains and losses.

Let’s get yourcrypto taxoff your mind.

Tell us where you are with your records. We’ll help you understand the next step, and your first consultation is free.

Book a free consultationCall 020 7118 9799