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United Kingdom CALCULATOR

United Kingdom crypto tax
calculator, HMRC-ready.

Connect every wallet, exchange, and chain. Kryptos applies the right United Kingdom rules, generates the right HMRC forms, and gives you an audit trail your accountant will accept.

Read the United Kingdom guide

100 transactions free. No credit card required.

Estimate your crypto tax

A quick estimate from your gains and income. For the exact figure, connect your accounts in Kryptos.

Your estimate

Enter your gain, or add a few trades, to see an estimate.

Estimate only, based on 2025/26 rates, and not tax advice. Your real liability depends on your full transaction history, cost basis, allowances, and losses. Connect your accounts for the exact figure.

Share
Cost-basis method
2
Forms generated
5,500+
Integrations
5 min
To first report
BUILT FOR United Kingdom

Made for United Kingdom crypto investors.

United Kingdom-specific rules applied automatically. You review, you sign off, you file.

Local cost-basis method

We apply Share pooling (Section 104, same-day, 30-day bed-and-breakfast) so your gains and losses match what HMRC expects.

Native HMRC forms

We generate SA108 Capital Gains Summary, SA100 Self Assessment. Download as PDF, CSV, or as TurboTax-compatible files where supported.

Audit trail included

Every classification linked back to the source transaction. If HMRC asks, you have receipts.

Country-aware support

Edge cases your generic tool misses, like Share-pooling with same-day and 30-day matching rules, plus a £3,000 capital-gains annual allowance., are handled by default.

Live data, every chain

Real-time balances across 150+ blockchains and 5,500+ integrations. No manual CSVs needed.

Read-only by design

Wallet API keys are read-only. We never receive private keys. SOC 2 Type II report and ISO 27001:2022 certification.

HOW IT WORKS

Three steps to a United Kingdom tax report.

  1. 1

    Connect everything

    Sync your wallets, exchanges, and DeFi positions. United Kingdom traders typically connect five to ten accounts.

  2. 2

    Review the auto-classification

    Kryptos labels every event. United Kingdom-specific rules apply automatically. You review only the events flagged for judgement.

  3. 3

    Download for HMRC

    Pick your report (forms list on the right), download, and file. Most users hand the export to their accountant.

WHO IT'S FOR

Built for every kind of United Kingdom taxpayer.

Individual investors

Track holdings, file your United Kingdom return. Free for the first 100 transactions.

For individuals

Accountants & tax pros

Onboard United Kingdom clients in minutes. Team seats, white-label reports, free client licences.

For accountants

Businesses & finance teams

Multi-entity United Kingdom treasury and accounting. HMRC-ready every month.

For enterprise
United Kingdom TAX FAQ

Questions about United Kingdom crypto tax.

Is crypto taxable in United Kingdom?

Yes. Capital gains, income from staking and mining, and DeFi-derived earnings are taxable under HMRC rules. We apply Share pooling (Section 104, same-day, 30-day bed-and-breakfast) and surface the events that count as taxable disposals.

Which forms does Kryptos generate for United Kingdom?

We produce SA108 Capital Gains Summary, SA100 Self Assessment ready to attach to your return. Each comes with a per-line audit trail so your tax preparer can verify the numbers.

When is the United Kingdom filing deadline?

31 January following the tax year end on 5 April. We send a reminder a month before, and the calculator can pre-generate the report so you're not scrambling at the deadline.

How is United Kingdom different from the generic crypto tax calculator?

The headline difference is the United Kingdom-specific treatment: Share-pooling with same-day and 30-day matching rules, plus a £3,000 capital-gains annual allowance.. A generic calculator misses it; HMRC expects you to account for it. Kryptos handles both correctly.

Can my accountant use this report?

Yes. United Kingdom CPAs work with Kryptos exports regularly. Add your accountant as a guest user on Pro+ or above and they can review and download your return.

Want the full United Kingdom crypto tax rulebook? Read the United Kingdom crypto tax guide or browse United Kingdom crypto tax software.

Not sure if you owe crypto tax?

Answer a few quick questions and see which of your crypto activities are taxable, and whether it counts as capital gains or income.

Check in 30 seconds
READY TO CALCULATE

File your United Kingdom crypto tax in minutes.

Free for the first 100 transactions. HMRC-ready reports every time.

See pricing