Crypto Capital Gains Tax UK

You might have to pay crypto capital gains tax UK if you sold, traded, gave away (not to a spouse), or spent crypto and made money.
This article tells you exactly how to register your crypto to HMRC, how to use our UK crypto tax calculator to figure out how much you owe, and how to claim capital losses or file a UK crypto tax return.
We explain crypto tax rates in the UK, tax breaks, and the best ways to stay on the right side of the law while lowering your tax burden, whether you're a trader, investor, or just sell every now and then.

Do I pay tax on crypto in the UK?

Crypto capital gains tax UK applies to most cryptocurrency sales. HMRC considers most crypto assets property, therefore gains over your yearly allowance are subject to CGT.
This applies when selling for GBP, swapping tokens, or spending crypto on products and services. Early capital gains tax crypto UK knowledge helps you plan and avoid fines.

Laptop showing crypto charts with HMRC tax forms and calculator — crypto mining tax UK professional guide

How We Help You Handle Crypto Capital Gains Tax UK

Expert support to  crypto capital gains tax UK calculate, report, and reduce your crypto capital gains tax in the UK.

Accurate CGT Reporting

We prepare clear, HMRC-compliant reports for your crypto capital gains tax UK, ensuring every detail is correct.

Easy Tax Calculations

Our crypto tax calculator UK makes it simple to work out your gains, losses, and overall tax bill.

HMRC Filing Support

From start to finish, we guide you through reporting crypto to HMRC without the stress.

Loss Claim Assistance

We help you claim crypto capital losses UK to reduce your bill and make the most of your allowances.

How to report crypto capital gains to HMRC (2025 guide)

Your Self Assessment tax return reports crypto capital gains tax UK. You must compute your tax year gains, remove permissible costs, and disclose them to HMRC. Our step-by-step guide demonstrates how to report crypto to HMRC in 2025, from gathering transaction information to filing your tax online. Being organised helps you prevent mistakes and submit a correct crypto tax return UK.

Gather Your Records

Collect all transaction details: dates, amounts, buy/sell prices, and any fees paid.

Calculate Your Gains

Use a crypto tax calculator UK or manual method to work out your total gains for the tax year.

Submit to HMRC

Report the figures in your Self Assessment crypto tax return UK before the deadline.

How to claim crypto capital losses UK

You can offset losses against gains to lower crypto capital gains tax UK if your investments failed. HMRC accepts crypto capital losses UK if reported on time. This may reduce or eliminate CGT liability. HMRC requires evidence for your tax return UK losses, and our guide shows you how to maximise your allowance.

Just three steps.

Book a Consultation with Our Cryptocurrency Tax Specialists Today

1.

Initial Review & Consultation

We assess your crypto tax situation, deadlines, and any HMRC correspondence you’ve received.

2.

Strategy & Documentation

Our experts prepare accurate calculations, gather required records, and create a compliance or penalty appeal plan.

3.

Filing & HMRC Representation

We submit your returns, handle all HMRC communications, and keep you updated until the matter is fully resolved

In crypto, mistakes cost money in tax, they cost even more. The right advice pays for itself

Your crypto gains should build your future, not your HMRC penalties.

Our team has helped traders, investors, and businesses across the UK successfully handle late crypto tax filings and penalty appeals. With years of HMRC experience, we make compliance simple.