If you’ve sold, swapped, spent, or earned cryptocurrency, UK crypto tax rules almost certainly apply to you, and the era of HMRC not knowing about it is over. Since January 2026, crypto exchanges have been collecting customer data for automatic reporting to tax authorities, which means unreported gains are now far easier for HMRC to find.
The good news is that UK crypto tax is manageable once you understand the framework. In this guide, we explain when Capital Gains Tax applies, when crypto counts as income, the current rates and allowances, what the new reporting rules mean for you, and how to get compliant if you’re behind.
Do You Pay Tax on Crypto in the UK?
Yes, in most cases. HMRC treats cryptoassets as property rather than currency, so UK crypto tax falls under two main regimes:
- Capital Gains Tax (CGT) when you dispose of crypto: selling it, swapping one coin for another, spending it, or gifting it to anyone other than your spouse or civil partner
- Income Tax when you receive crypto as earnings: mining rewards, staking rewards, many airdrops, or being paid in crypto for work
Simply buying crypto with pounds and holding it is not a taxable event. The tax arises when you dispose of it or earn it. HMRC sets out its full position in the Cryptoassets Manual on GOV.UK.
UK Crypto Tax Rates and the £3,000 Allowance
For the 2026/27 tax year, the key numbers are:
| Tax | Rate | Allowance |
|---|---|---|
| Capital Gains Tax (basic rate taxpayer) | 18% | £3,000 annual exempt amount |
| Capital Gains Tax (higher/additional rate) | 24% | |
| Income Tax on crypto income | 20% to 45% | £12,570 personal allowance (plus up to £1,000 trading and miscellaneous income allowance where it applies) |
The £3,000 CGT allowance covers all your capital gains for the year, not just crypto, and it has fallen sharply in recent years, down from £12,300 as recently as 2022/23. Many casual investors who never used to owe anything now do, which is one reason UK crypto tax has become impossible to ignore.
Which CGT rate you pay depends on your income. If your taxable income plus your gain stays within the basic rate band, some or all of the gain is taxed at 18%. Above that, it’s 24%.
What Counts as a Disposal?
This is where most people get caught out. A disposal is not just cashing out to pounds. All of these trigger a potential CGT event:
- Selling crypto for pounds or any other currency
- Swapping one cryptoasset for another, for example BTC to ETH
- Spending crypto on goods or services
- Gifting crypto to anyone except your spouse or civil partner
An active trader making hundreds of swaps a year is making hundreds of disposals, each needing a gain or loss calculated in pounds at the time of the transaction. That’s why record keeping sits at the heart of UK crypto tax compliance.
When Crypto Counts as Income
Crypto you receive, rather than buy, is generally taxed as income at its market value in pounds on the day you receive it. That includes mining rewards, staking rewards, airdrops received in return for doing something, and salary or freelance payments made in crypto. Later, when you dispose of those tokens, CGT applies on any change in value since you received them, so one reward can create two tax events.
HMRC Can Now See Your Crypto: The CARF Rules
From 1 January 2026, the Cryptoasset Reporting Framework (CARF) requires crypto service providers to collect and report customer transaction data, which is shared automatically with tax authorities, including internationally. In plain English: HMRC increasingly receives your exchange data without asking you.
This changes the risk calculation completely. HMRC has already been sending nudge letters to crypto investors, and with automatic data feeds, undeclared gains from past years are more likely than ever to surface. If you have unreported crypto activity, coming forward voluntarily, before HMRC comes to you, almost always leads to a better outcome on penalties.
How Crypto Gains Are Calculated
UK crypto tax uses specific matching rules that you cannot opt out of. When you dispose of tokens, your cost is matched in this order: tokens bought the same day first, then tokens bought within the following 30 days, then your Section 104 pool, which is the running average cost of all your earlier purchases of that token. These rules exist to stop people selling and instantly rebuying to manufacture losses, and they make manual spreadsheets genuinely difficult for active portfolios. Specialist software, checked by a specialist adviser, is usually the sensible route.
5 Steps to Get Your UK Crypto Tax Sorted
- Gather your full history. Export transactions from every exchange and wallet you’ve ever used, including closed accounts. Gaps in history are the number one cause of wrong calculations.
- Separate income from gains. Staking, mining and airdrop receipts follow Income Tax rules; disposals follow CGT rules. Mixing them up is the most common DIY error we see.
- Calculate gains with the HMRC matching rules. Same day, then 30 days, then the Section 104 pool, all valued in pounds at the time of each transaction.
- Register your losses. Losses offset gains and can be carried forward, but they generally need to be claimed within four years, so report them even in years when you owe nothing.
- File and pay through Self Assessment. The online deadline is 31 January following the end of the tax year. If past years are missing, take advice on the right disclosure route before HMRC contacts you.
How Crypto Tax Solution Can Help
Crypto Tax Solution specialises in exactly this. We reconcile your complete transaction history across exchanges, wallets and chains, apply HMRC’s matching rules correctly, separate your income from your gains, prepare and file your Self Assessment, and advise on disclosing earlier years if you’re behind. Whether you made a handful of trades or thousands, you get a clear, defensible position and a fixed view of what you owe. Explore our crypto tax services, read more about us, or get in touch for a confidential chat about your situation.
This article is general guidance based on the rules at the time of writing. Rates, allowances and reporting requirements can change, and your circumstances are unique, so please seek advice tailored to you before acting.
Frequently Asked Questions
Do I pay tax on crypto in the UK?
Usually, yes. Disposing of crypto (selling, swapping, spending, or gifting to anyone other than a spouse or civil partner) can trigger Capital Gains Tax, and crypto received from mining, staking, many airdrops or work is taxed as income. Buying and holding crypto is not itself taxable.
What are the UK crypto tax rates for 2026/27?
Capital gains on crypto are taxed at 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers, above the £3,000 annual exempt amount. Crypto income is taxed at normal Income Tax rates of 20% to 45%, depending on your total income.
Is swapping one crypto for another taxable in the UK?
Yes. Swapping one cryptoasset for another, such as Bitcoin to Ethereum, is a disposal for Capital Gains Tax purposes. You realise a gain or loss on the asset you give up, based on its value in pounds at the time of the swap.
Can HMRC see my crypto?
Increasingly, yes. Under the Cryptoasset Reporting Framework, which took effect from 1 January 2026, crypto service providers collect and report customer transaction data that is shared automatically with tax authorities. HMRC also requests data from exchanges directly and sends nudge letters to suspected non-reporters.
What happens if I haven’t declared my crypto gains?
You should act before HMRC contacts you. Voluntary disclosure of unreported gains or income generally results in significantly lower penalties than waiting for an HMRC enquiry. A specialist adviser can calculate what’s owed and manage the disclosure process for you.
Do I pay tax on crypto if I made less than £3,000 in gains?
If your total capital gains from all assets are within the £3,000 annual exempt amount and you have no crypto income, there is usually no Capital Gains Tax to pay. You may still need to report disposals in some cases, for example if you are already in Self Assessment and your total proceeds exceed the reporting threshold.
How is crypto staking taxed in the UK?
Staking rewards are generally taxed as income at their market value in pounds when you receive them. When you later dispose of those tokens, Capital Gains Tax applies to any change in value since receipt, so staking can create both an income event and a capital gains event.
Do I need a crypto tax accountant?
If you’ve made more than a few simple trades, a specialist usually pays for themselves. HMRC’s matching rules, income versus gains classification, and multi-exchange histories are easy to get wrong. A crypto tax specialist reconciles your full history, applies the rules correctly, and files a position you can defend if HMRC asks questions.
