Best crypto tax software for the UK (2026)
Good UK crypto tax software connects to your exchanges and wallets, imports your full transaction history, applies HMRC's same-day, 30-day and Section 104 rules automatically, and produces a Self Assessment-ready report. When comparing tools, check UK-specific rule support first (many global tools default to US methods), then integrations for the platforms you actually use, DeFi/staking handling, and the transaction limits on each price tier. This page contains affiliate links — we may earn a commission, and these are advertisements, not impartial endorsements.
When software beats a calculator
Our free calculator is built for manual entry with full transparency — ideal for checking your position or handling a modest history. Dedicated software earns its fee when volume takes over: hundreds of transactions, several exchanges, DeFi positions, or years of history to reconstruct. API imports and automatic classification save hours and reduce transcription errors.
Whatever you use, the test is the same: does it apply the UK's matching rules correctly, and can it show you the working behind each figure? If a tool can't show its working, you can't defend its numbers to HMRC.
What to check before paying
- UK tax method: explicit support for same-day, 30-day and Section 104 pooling — not just US-style lot methods with a currency toggle
- Integrations: API or CSV support for every exchange and chain you've used, including dead ones via CSV
- DeFi and staking: how it classifies LP entries/exits, wrapping, and reward income — and whether you can override it
- Reports: an SA108-ready capital gains summary plus an income report, with per-disposal detail
- Pricing model: most charge per tax year, tiered by transaction count — check the tier that matches your busiest year, and check current prices on their sites
The two we link to
Koinly and CoinLedger are two of the most widely used tools that support UK rules. Both offer free imports with paid tax reports, broad exchange coverage, and HMRC-basis calculations; differences show up in interface taste, specific integration coverage, and price tiers — check both against your own platforms before paying either.
Disclosure, plainly: the buttons below are affiliate links. If you sign up through them we may earn a commission at no extra cost to you. That's how this free calculator is funded. They are advertisements, not an endorsement by HMRC or a recommendation tailored to your circumstances.
This looks worth automating
Ad · Affiliate- You want your full history imported automatically rather than typed in.
Dedicated crypto tax software connects to your exchanges and wallets, imports your full history automatically, and handles the edge cases this calculator doesn’t. These are paid tools we may earn a commission from.
Affiliate disclosure: the links above are affiliate links. If you sign up we may receive a commission at no extra cost to you. This is an advertisement and not impartial advice or an endorsement by HMRC.
Run your own numbers — free
Our calculator applies these rules to your transactions and shows the full working for every disposal — same-day, 30-day and Section 104 matching, per tax year.
Open the calculator →Frequently asked questions
Can't I just use my exchange's tax report?
Single-exchange reports rarely apply UK matching rules and can't see your other platforms — the 30-day rule can't be computed from one exchange's view of your life. They're useful inputs, not final answers.
Is crypto tax software's output guaranteed correct?
No — classification of edge cases (DeFi especially) is automated guesswork you're expected to review. Software accelerates the work; it doesn't take on your filing responsibility.
Do I still need an accountant if I use software?
For clean histories, usually not. For large gains, DeFi complexity or undeclared prior years, a UK crypto specialist reviewing the software's output is money well spent.
Sources & methodology
- HMRC Cryptoassets Manual CRYPTO22200 — pooling and the same-day / 30-day identification rules
- GOV.UK: Report and pay your Capital Gains Tax
Tool v0.2.0 · sources last checked 6 July 2026. This guide is general information, not tax or financial advice — verify your position with a qualified professional before filing.