Crypto Tax in the UK 2026/27: The 24% Rate, the £3,000 Allowance and 5 Mistakes That Cost British Holders Money

HMRC is about to know more about your crypto than you do. Since 1 January 2026, every UK crypto exchange has been legally required to collect your name, address, date of birth, National Insurance number and full transaction history — and the first reports land with HMRC by 31 May 2027, covering more than 10 million transactions. If you made crypto gains above £3,000 in the 2026/27 tax year, you owe capital gains tax of 18% or 24%. Here is exactly how UK crypto tax works, what HMRC already knows, and the five mistakes that cost British holders the most money.

That last number is the one that surprises most people. The tax-free allowance on capital gains was £12,300 as recently as 2022/23. It is now £3,000 — and it covers all your gains in the year, not just crypto. A handful of profitable trades can now push you over it. Meanwhile the rate on those gains jumped from 10% and 20% to 18% and 24% in the Autumn Budget of October 2024, and the tax year ends on 5 April 2027.

Is Crypto Taxed in the UK?

Yes. HMRC treats cryptoassets as property, not currency. That single classification decides almost everything: when you dispose of crypto, you are treated as disposing of an asset, and Capital Gains Tax (CGT) applies to the gain. There is no special "crypto tax" — the ordinary CGT rules apply, with HMRC's Cryptoassets Manual setting out how they work for tokens.

The important point is what counts as a disposal. Most holders think tax only applies when they cash out to pounds. HMRC disagrees. According to its Cryptoassets Manual, you dispose of crypto when you sell tokens for money, exchange them for a different type of token, use them to pay for goods or services, or give them away to anyone other than a spouse, civil partner or charity. A crypto-to-crypto swap — say, trading Bitcoin for Ethereum — is a taxable disposal even though no pounds ever touched your bank account. That is the single most common and most expensive misunderstanding in UK crypto tax.

By contrast, simply buying crypto with pounds and holding it is not taxable, and moving your own crypto between wallets you control is not a disposal either. The tax event happens when value leaves your hands in exchange for something else.

The 2026/27 Numbers That Decide Your Bill

Three figures decide almost every UK holder's tax bill: the annual exempt amount, the CGT rate, and the basic-rate band. Here they are for the 2026/27 tax year, which runs from 6 April 2026 to 5 April 2027:

Figure	2026/27 value	What it means
Annual exempt amount	£3,000	Your first £3,000 of total capital gains each year is tax-free
CGT rate — basic rate	18%	Applies to gains that fall within your remaining basic-rate band
CGT rate — higher/additional rate	24%	Applies to gains above the basic-rate band
Higher-rate threshold	£50,270	Total income plus gains above this is taxed at 24%
Basic-rate band	£37,700	The slice of income and gains taxed at the basic rate

Your crypto gains are added on top of your income to work out which rate applies. If you earn £40,000 from your job and make a £20,000 crypto gain, the whole gain sits above the £50,270 threshold and is taxed at 24% (after the £3,000 allowance). If you earn £20,000 and make the same gain, part of it is taxed at 18% and the rest at 24%. The allowance has shrunk fast — £12,300 in 2022/23, £6,000 in 2023/24, £3,000 from 2024/25 onwards — which is why holders who never paid CGT before are now in scope.

There is also a reporting trigger many people miss: you must report your gains if your total gains before losses exceed £3,000, if your total disposal proceeds exceed £50,000, or if you want to claim a loss. Note the second test — if you sold £60,000 worth of crypto in the year, you must report even if your actual gain was small.

A Worked Example: What 24% Actually Costs

Take an illustrative example with round numbers. Suppose you bought 1 BTC for £40,000 in 2025 and sold it for £70,000 in January 2027. Your gain is £30,000. Subtract the £3,000 annual exempt amount and £27,000 is taxable. As a higher-rate taxpayer, you pay 24% of £27,000 — £6,480. Your £30,000 paper profit becomes £23,520 after tax. Selling in two tax years instead of one would let you use two annual allowances — a legal timing decision, provided the sales are genuine and you respect the 30-day rule explained below.

Pooling, the Same-Day Rule and the 30-Day Trap

HMRC does not let you pick which coins you sold. All tokens of the same type you own form a single "Section 104 holding" — a pool with one average cost. When you sell some of your Bitcoin, you are treated as selling a slice of the whole pool at its average cost, not the specific coins you bought cheapest. That kills the most tempting trick in the book: selling only your highest-cost coins to manufacture a loss.

Two matching rules sit on top of the pool. Disposals are first matched against crypto of the same type acquired on the same day, then against crypto acquired in the following 30 days — the so-called bed-and-breakfast rule. Sell Bitcoin on Monday and buy it back within 30 days, and the sale is matched against the repurchase, wiping out the loss you thought you had banked.

Staking, Mining and Airdrops: Taxed as Income First

Not everything in crypto is a capital gain. Staking rewards, mining rewards and most airdrops are treated as income when you receive them, taxed at their sterling value on the day of receipt. HMRC's updated guidance confirms staking rewards are generally miscellaneous income. You can receive up to £1,000 of trading and miscellaneous income a year tax-free; above £2,500 you must register for Self Assessment.

That income treatment is only the first tax event. When you later sell those rewarded tokens, the disposal is also a capital gain, measured from the value at which you already paid income tax. Getting this wrong — reporting only the sale and forgetting the income, or vice versa — is one of the most common errors in UK crypto returns.

DeFi makes this harder. HMRC's guidance treats lending tokens through a DeFi protocol as a disposal in many cases, because you have given up beneficial ownership of the tokens. If you earn yield through DeFi, keep records of every deposit, withdrawal and reward, and assume each step may be a taxable event until you can show otherwise. Our guide to what crypto staking is and how it works explains the mechanics; the tax treatment is a separate question you should settle before you stake, not after.

CARF: Why HMRC Will Know in 2027

Until now, HMRC could only get crypto data by sending specific information notices to UK exchanges — a slow process that needed suspicion first. That era ends with the Crypto-Asset Reporting Framework (CARF), an OECD standard the UK has written into law. From 1 January 2026, UK cryptoasset service providers — exchanges, custodial wallet providers, brokers and dealers — must collect each user's full name, address, date of birth, country of tax residence and National Insurance number or Unique Taxpayer Reference, and record their transactions.

HMRC is already building the picture. In August 2026 it published its first-ever dedicated statistics on taxable cryptoasset gains, covering the 2024/25 tax year. The FCA's research puts the scale of the market at around 12% of UK adults — roughly 7 million people — who have owned crypto at some point. The message is blunt: the "HMRC will never find out" strategy expired on 1 January 2026. If you have unreported gains from earlier years, HMRC runs a Cryptoasset Disclosure Service for voluntary correction — and voluntary disclosure is always cheaper than being found.

How the UK Compares: 4 Countries, 4 Very Different Bills

Tax is one of the few things that can make the same Bitcoin trade profitable in one country and painful in another. Here is how the UK stacks up against three countries British holders often compare themselves with:

Country	Tax on crypto gains	Tax-free allowance	The catch
United Kingdom	18% / 24% CGT	£3,000 a year	CARF reporting live since Jan 2026; pooling and 30-day rules
Germany	0% after 1 year held	€1,000 a year (short-term)	Tax-free rule ends in 2028 — a 25% flat tax is coming
Netherlands	Box 3 deemed return (~6%)	~€57,000 tax-free wealth	Taxed on assumed return, even in a losing year
United States	0% / 15% / 20% long-term	Varies by income	Short-term gains taxed as income up to 37%

Germany currently looks generous — hold for a year and pay nothing — but as our Germany crypto tax 2028 guide explains, that advantage has an expiry date. The Netherlands taxes an assumed return on your wealth whether you made money or not, as explained in our Netherlands crypto tax guide. The UK sits in the middle: a real tax on real gains, with a shrinking allowance and a tax authority that now receives your data automatically.

5 Mistakes That Cost British Holders Money

Most UK crypto tax bills are not caused by the rates — they are caused by avoidable errors:

• Treating crypto-to-crypto swaps as tax-free. Swapping BTC for ETH, or ETH for a stablecoin, is a disposal. Every swap creates a gain or loss that must be calculated in sterling. Holders who swapped heavily in a bull run and only counted their fiat cash-outs routinely under-report by thousands of pounds.
• Forgetting the 30-day bed-and-breakfast rule. Selling to harvest a loss and buying back the next week does not work. HMRC matches the sale against the repurchase and the loss disappears. If you want the loss, stay out for 30 days or rotate into a different asset.
• Ignoring staking and airdrop income. Rewards are income on receipt and a capital gain on sale. Reporting only one of the two events is wrong in both directions — and with CARF data now flowing to HMRC, the income side is the part most likely to be cross-checked.
• Keeping no records until tax-return season. Pooling needs every transaction in sterling at the time it happened: buys, sells, swaps, fees, rewards, gifts. Reconstructing two years of trades from exchange CSVs in January is how cost bases get guessed — and guessed cost bases are how overpayments and HMRC enquiries happen. Start a simple log now, and use a crypto tax tool to reconcile it.
• Assuming small gains do not matter. The £3,000 allowance is small and covers all your gains, not just crypto. A £2,000 crypto gain plus a £2,000 gain on shares puts you over it. And the £50,000 proceeds test means you can owe a return even when your gain is modest. If in doubt, report — the cost of filing is far lower than the cost of a discovery assessment plus interest and penalties.

How to Report Crypto Tax in the UK: A Checklist

For 2026/27, the Self Assessment deadline is 31 January 2028. Here is the process in order:

• Gather every transaction record now. Export CSVs from every exchange and wallet you used in 2026/27, including closed accounts, and list DeFi activity separately.
• Calculate gains the HMRC way. Apply the Section 104 pool, the same-day rule and the 30-day rule to every disposal, in sterling, with fees deducted as allowable costs.
• Separate income from gains. Staking, mining and airdrop rewards go on the income side; sales, swaps and spending go on the gains side.
• Check the reporting triggers. Gains before losses over £3,000, proceeds over £50,000, or a loss you want to claim — any one of these means you report.
• File via Self Assessment. Report crypto gains on the Capital Gains supplementary pages (SA108) of your return, or use HMRC's real-time CGT service if you prefer to report during the year.
• Keep everything for at least until 31 January 2033. HMRC can enquire into a return for years after filing, and your records are your only defence.

If you are new to buying crypto in Britain, our guide to buying Bitcoin in the UK covers the FCA-registered exchanges, the 24-hour cooling-off rule for first-time buyers, and the fee gap between platforms. And if you are deciding how much to hold at all, our dollar-cost averaging guide explains a strategy that also happens to simplify your tax records — regular equal purchases are far easier to pool than dozens of opportunistic trades. For the basics of self-custody, see our crypto wallet guide.

5 Myths About UK Crypto Tax, Debunked

Myth 1: "HMRC can't see my crypto." False since 1 January 2026. CARF requires UK platforms to hand HMRC your identity and transactions, with the first reports due by May 2027 — and more than 40 other countries share data the same way.

Myth 2: "I only pay tax when I cash out to pounds." False. Crypto-to-crypto swaps, spending crypto and most gifts are all disposals. Cashing out is only one of four taxable events.

Myth 3: "Small gains don't count." False. The allowance is £3,000 across all assets, and the £50,000 proceeds test can force a return even on a small gain.

Myth 4: "Gifting crypto to family is tax-free." Mostly false. Gifts are disposals at market value — except gifts to a spouse, civil partner or charity. Giving Bitcoin to your children triggers CGT on the gain, even though no money changed hands.

Myth 5: "Losses are useless." False. Losses offset gains in the same year, can be carried forward indefinitely, and must be claimed within four years. In a year like 2026, when Bitcoin has fallen roughly 40% from its October 2025 high of about $126,000 to around $76,000, harvested losses are one of the few genuinely valuable things a down market gives you — provided you respect the 30-day rule.

What Happens Next: The Dates That Matter

Three dates decide the next year for UK holders. The 2026/27 tax year ends on 5 April 2027 — any disposal before then falls in this year's return. The first CARF reports reach HMRC by 31 May 2027, covering every transaction you made in 2026. And the Self Assessment deadline for 2026/27 is 31 January 2028. Use the gap between now and April to get your records straight and use this year's £3,000 allowance before it resets — it does not carry forward.

FAQs: Crypto Tax in the UK

Do I pay tax on crypto in the UK if I never cash out to pounds?

Yes. Selling crypto for another crypto, spending it, or gifting it are all disposals. Only buying and holding, or moving crypto between your own wallets, is tax-free.

How much crypto can I sell tax-free in the UK in 2026/27?

You can make up to £3,000 of total capital gains a year tax-free — that is the annual exempt amount, and it covers all your assets, not just crypto. Above that, gains are taxed at 18% within your basic-rate band and 24% above it.

What is the CGT rate on crypto in the UK?

For 2026/27, 18% for gains falling within your remaining basic-rate band and 24% for gains above it. The rates rose from 10% and 20% in the Autumn Budget of October 2024 and have been unchanged since.

Does HMRC know about my crypto?

Increasingly, yes. Since 1 January 2026, UK crypto platforms must collect your identity and transaction data under the Crypto-Asset Reporting Framework (CARF) and report it to HMRC, with the first reports due by 31 May 2027. HMRC also published its first cryptoasset tax statistics in August 2026.

Are staking rewards taxed in the UK?

Yes. Staking rewards are generally treated as miscellaneous income at their sterling value on the day you receive them, and selling the rewarded tokens later is a separate capital gains event. You have a £1,000 trading and miscellaneous income allowance, and must register for Self Assessment if that income exceeds £2,500.

What happens if I don't report crypto gains in the UK?

HMRC can raise a discovery assessment for up to 20 years in cases of deliberate non-disclosure, plus interest and penalties of up to 100% of the tax due. Voluntary disclosure through HMRC's Cryptoasset Disclosure Service is always cheaper than being found, and with CARF data now flowing, being found is more likely than ever.

Conclusion

UK crypto tax in 2026/27 comes down to five numbers: a £3,000 allowance, 18% and 24% rates, a £50,270 threshold, and a 31 May 2027 date when HMRC receives your exchange data for the first time. The rules are not designed to be feared — they are designed to be followed, and following them is mostly a matter of records, timing and not making the five mistakes above.

Bitcoin is trading around $76,000 as November 2026 closes, roughly 40% below its all-time high, and many holders are sitting on losses rather than gains. That is not a reason to ignore tax — it is a reason to use the system properly, because losses claimed correctly are worth real money against future gains. Get your records in order before 5 April 2027, use your allowance, respect the 30-day rule, and file on time. The taxman now has the data. Make sure your return agrees with it.

This article is for general information only and is not financial, tax or legal advice. Tax rules change and individual circumstances vary. Consult a qualified UK tax adviser for advice specific to your situation. Sources: HMRC Cryptoassets Manual (GOV.UK), TokenTax UK crypto tax guide 2026, GoForma UK crypto tax calculator 2026/27, Pie Tax: How HMRC gets your crypto data, The Tax Guide: Crypto tax in 2026 — what HMRC will know once CARF kicks in.