How Does UK Crypto Tax Work? HMRC Rules, Rates & Reporting (2026)

HMRC has been collecting crypto transaction data for years. From 1 January 2026, reporting becomes more structured, with the first datasets covering 2026 activity due by 31 May 2027. That means what you report and what HMRC sees are moving closer together. Here is everything you need to know about how crypto is taxed in the UK in 2026.

What are the UK Crypto Tax Rules?

When it comes to tax on cryptocurrency, UK rules are crystal clear. HMRC taxes crypto in two ways:

1. Capital Gains Tax (CGT) when you dispose of crypto
2. Income Tax when you earn crypto

Almost every UK crypto tax question comes back to one of these two categories. If you own crypto and get rid of it, you are dealing with CGT. If you receive crypto as payment, rewards, or interest, it is taxed as ordinary income.

HMRC first clarified its position on cryptoassets in its Cryptoassets Manual, confirming that HMRC does not treat digital assets as currency or money. That framework has since been extended through updated self-assessment requirements, CARF implementation, and ongoing guidance on DeFi and staking. Everything in this guide follows current HMRC rules.

Is cryptoasset trading regulated in the UK?

Yes. Cryptoasset trading in the UK operates within a regulated environment, though the regulation applies to platforms rather than individual investors.

The Financial Conduct Authority (FCA) requires all cryptoasset businesses operating in the UK to register and comply with anti-money laundering rules. From 2026, platforms must also collect and report user transaction data to HMRC under the Cryptoasset Reporting Framework (CARF). Individuals do not need a licence to buy, sell, or hold crypto, but the exchanges and platforms they use are subject to FCA oversight, AML compliance obligations, and increasing tax reporting requirements.

Crypto is not recognised as legal tender in the UK and is not regulated as currency. It is treated as a financial asset, and disposals are subject to Capital Gains Tax or Income Tax depending on the nature of the activity.

Do You Pay Capital Gains Tax on Crypto in the UK?

Yes. CGT applies when you dispose of crypto you own. A disposal means crypto leaves your ownership or changes hands. If you make a profit on a disposal, that gain may be taxable. If you make a loss, that loss can generally offset other taxable gains.

What counts as a disposal triggering CGT?

• Selling crypto for GBP or another fiat currency
• Trading one crypto for another (Bitcoin to Ethereum, for example)
• Spending crypto on goods or services
• Gifting crypto to anyone other than your spouse or civil partner

Disposals generally need to be reported on your Self Assessment tax return, with the gain or loss calculated per transaction. Whether you are required to file depends on your total gains, total proceeds, and whether you are claiming losses — covered in the reporting section below.

When Do You Pay Income Tax on Crypto in the UK?

Income Tax applies any time you earn crypto under HMRC rules. This includes obvious situations like receiving a salary in Bitcoin, and less obvious ones like DeFi rewards.

Crypto treated as income includes:

• Getting paid in crypto (employment or freelance)
• Mining rewards (if mining constitutes a business or trade)
• Staking rewards
• Airdrops received in exchange for a service
• Interest from crypto lending
• Liquidity mining rewards from DeFi protocols like Uniswap or Aave
• GameFi and play-to-earn rewards

HMRC taxes crypto income at your marginal Income Tax rate in the tax year you receive it. The GBP value on the date of receipt is what counts. Where crypto activity amounts to a trade or constitutes employment income, National Insurance contributions may also apply.

How Much Tax Do You Pay on Crypto in the UK? (2025/26 Rates)

There is no single UK crypto tax rate. What you owe depends on your total taxable income, the type of transactions, and whether you have used your annual allowances. At CountDeFi, when we work through a UK client's tax position, we look at three layers.

The CGT Annual Exempt Amount

For the 2025/26 tax year, each individual has a £3,000 Capital Gains Tax annual exempt amount. Gains across all chargeable assets — crypto, shares, property — below this threshold attract no CGT. The allowance does not roll over. If you do not use it, you lose it.

Note: this is a significant reduction from recent years. In 2022/23 the exempt amount was £12,300. It dropped to £6,000 in 2023/24, then £3,000 in 2024/25 — where it has remained for 2025/26.

Capital Gains Tax Rates (2025/26)

These rates apply to gains above the £3,000 annual exempt amount.

Income Tax Rates (2025/26)

Crypto income is taxed at your standard Income Tax band. The rates below apply in England, Wales, and Northern Ireland. Scottish taxpayers are subject to different rates set by the Scottish Parliament — check GOV.UK for current Scottish Income Tax bands.

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What Crypto Activity Is Not Taxable in the UK?

You will not pay tax on crypto in the UK when:

• Buying crypto with GBP
• Holding crypto without disposing of it
• Transferring crypto between your own wallets
• Gifting crypto to your spouse or civil partner
• Donating crypto to a registered UK charity

These are not taxable events. Everything else usually is.

How Does HMRC Calculate Your Crypto Cost Basis?

HMRC only permits one cost basis method: share pooling. Unlike the US, where investors can choose between FIFO, HIFO, Specific ID and others, UK investors have no choice. Share pooling applies three rules in this order:

1. The Same-Day Rule

If you buy and sell the same crypto on the same day, those transactions are matched first.

2. The 30-Day Rule (Bed and Breakfasting)

If you sell crypto and buy the same crypto within 30 days, the cost basis of the repurchase applies to that disposal. This rule exists specifically to prevent tax-loss harvesting followed by immediate repurchase.

3. The Section 104 Pool

For everything else, your holdings in a given token are pooled. The cost basis is the average acquisition cost across all purchases in the pool.

Example

Sarah bought 2 ETH in March 2023 for £2,000 each (£4,000 total). She bought 1 more ETH in August 2024 for £3,000. Her Section 104 pool now holds 3 ETH with a total cost of £7,000, giving an average cost of £2,333 per ETH.

In January 2026, she sells 1 ETH for £4,500. Her gain is £4,500 minus £2,333 = £2,167.

After applying her £3,000 CGT annual exempt amount (assuming no other gains that year), no CGT is due on this disposal.

Are Crypto Losses Tax Deductible in the UK?

Yes. Losses from crypto disposals can offset gains elsewhere in your portfolio. There is no annual cap on the losses you can offset against gains. If losses exceed gains, the net loss carries forward indefinitely to future tax years.

To use a loss, you must report it to HMRC. Losses do not apply automatically. You can back-claim losses up to four years prior. If you have unrealised losses in your Solana, Cardano, or other positions, it is worth reviewing whether crystallising them before the tax year ends on 5 April makes sense for your overall position.

How Is DeFi Taxed in the UK?

DeFi tax in the UK is an area where HMRC has published detailed guidance, an active consultation outcome, and as of April 2026, proposed but not yet enacted reform. The rules that apply today and the rules that may apply soon are different. Both matter.

Liquidity pools — current rules (2025/26)

Under HMRC's existing Cryptoassets Manual guidance (CRYPTO61000+), depositing tokens into a liquidity pool and receiving LP tokens in return is treated as a disposal if beneficial ownership of the original tokens transfers to the protocol. Most major AMMs like Uniswap, Curve, and Aave are treated as taking beneficial ownership, which means:

• Depositing into a pool is a CGT disposal of the original tokens
• Withdrawing from a pool is a CGT disposal of the LP tokens
• Both events require a gain or loss calculation using share pooling rules

The key test is whether the protocol can deal freely with your tokens. If it can, beneficial ownership has transferred and a disposal has occurred. In practice, many major AMMs — Uniswap, Curve, and Aave-style lending platforms are common examples — are structured in a way where beneficial ownership typically does transfer, meaning entry and exit are likely to be CGT events. The facts of each arrangement determine the outcome.

The proposed "no gain, no loss" reform — not yet law

In November 2025, HMRC published its consultation outcome signalling support for a "no gain, no loss" (NGNL) approach to DeFi lending and liquidity pool transactions. Under the proposed rules, depositing into and withdrawing from a lending or liquidity protocol would not trigger a CGT disposal, provided you retain the right to reclaim the same type and quantity of tokens. CGT would only arise on genuine economic exit.

The proposal covers single-token lending, crypto borrowing, and Uniswap-style multi-token AMM pools.

However, HMRC has been explicit: this is a potential approach under development, not enacted legislation. No draft legislation has been published as of April 2026. Current rules apply in full for 2024/25 and 2025/26. The NGNL framework, if passed, would change the timing of CGT events — not the underlying data requirements. Detailed transaction records remain essential either way.

Staking rewards

HMRC treats staking rewards as miscellaneous income, taxable in the year of receipt at the GBP fair market value on that date. The NGNL consultation explicitly confirmed that staking rewards will continue to follow existing income and capital principles — there is no proposed change to how rewards are taxed, only to whether the deposit and withdrawal events themselves trigger CGT.

If your staking activity constitutes a trade rather than investment, profits may be subject to Income Tax and National Insurance rather than CGT.

Airdrops

Airdrops received in exchange for a service are taxable as income at the GBP value on receipt. Airdrops with no conditions attached may fall outside the scope of Income Tax on receipt under current HMRC guidance, though CGT will apply on eventual disposal. The facts of each airdrop determine the treatment.

DeFi lending interest

Interest received in crypto from lending on platforms like Aave or Compound is generally taxable as income at the GBP fair market value on the date of receipt.

DeFi tax is one of the areas where we see the most errors, missed disclosures, and exposure in client portfolios. If you have Ethereum liquidity positions, Curve LP tokens, or years of staking rewards across multiple wallets, the data complexity alone makes professional support worth the cost.

HMRC Reporting, CARF, and Audit Risk

Ever wondered if HMRC knows about your crypto? They have always had access to exchange data through information requests. From 1 January 2026, that changed materially. Under CARF, UK-regulated crypto platforms are now required to report user transaction data to HMRC annually. The first reports covering 2026 activity are due by 31 May 2027.

What this means in practice

From 1 January 2026, UK-regulated crypto platforms must collect standardised transaction data on all customers, including UK residents. The first reports for 2026 activity are due between 1 January and 31 May 2027. Once submitted, HMRC will have structured, machine-readable data on your exchange activity to cross-reference against your Self Assessment return. Where platform-reported figures do not align with what you have declared, that discrepancy is likely to attract HMRC attention. Accurate records are not optional.

Starting with the 2024/25 tax year, HMRC added a dedicated crypto section to the Self Assessment capital gains pages. You cannot plausibly overlook reporting requirements when the form asks you directly.

HMRC enforcement is active

HMRC has issued information notices to major UK exchanges and used blockchain analytics tools for several years. The CARF implementation simply formalises data flows that were already being sought informally. The combination of platform-reported data and on-chain analytics means that underreporting crypto gains is a high-risk position in 2026.

If you have unreported gains from prior years, HMRC's Cryptoasset Disclosure Service (CDS) allows voluntary disclosure, but seek professional advice before using it, as it is not always the most tax-efficient route. Read our updated guide on how to make a volunteer disclosure here.

When Do You Pay Tax on Crypto UK?

UK crypto tax is reported through Self Assessment.

• Tax year: 6 April to 5 April
• Paper filing deadline: 31 October following the tax year end
• Online filing deadline: 31 January following the tax year end
• Payment deadline: 31 January following the tax year end

For the 2025/26 tax year (6 April 2025 to 5 April 2026), the online filing and payment deadline is 31 January 2027.

Do you need to file even if you made a loss or stayed under the allowance?

Possibly. If your total proceeds from crypto disposals exceed four times the annual CGT exempt amount (£12,000 for 2025/26), you must report even if the gain is below £3,000. If you want to register losses for future use, you also need to report them.

How to Report Crypto on Your UK Tax Return

Step 1: Complete the digital assets question

HMRC's Self Assessment return now includes a dedicated section for cryptoasset activity. Answer it accurately.

Step 2: Report disposals on the Capital Gains summary pages

Every sale, trade, and disposal must be listed with proceeds, cost basis, and resulting gain or loss — calculated using share pooling rules.

Step 3: Report crypto income on the income pages

Staking rewards, mining income, airdrops received for services, and other crypto earnings are reported as miscellaneous income or self-employment income depending on the nature of the activity.

How to Get the Data You Need for HMRC

To complete your UK tax return accurately, you need a full record of every transaction across every wallet and exchange — with GBP values at the time of each event.

1. Use crypto tax software

Software tools connect to exchanges and wallets, import transactions, and apply share pooling rules automatically. This works well for straightforward activity. When your portfolio includes DeFi positions, bridging activity, or years of missing data, software alone is rarely sufficient.

2. Export and calculate manually

Some investors download exchange CSVs and calculate gains in spreadsheets. This becomes error-prone quickly and is impractical for any meaningful DeFi activity. If your exchange has shut down, here is what to do when you need historical records from a dead exchange.

3. Work with a crypto tax specialist

For complex portfolios — multiple wallets, DeFi protocols, NFTs, missing data, or multiple tax years — a specialist who starts at the data layer is the most reliable route. CountDeFi's approach begins with forensic data reconciliation across every wallet, exchange, and protocol, then applies correct HMRC treatment to every transaction. The result is a report that is accurate, HMRC-compliant, and defensible if questioned.

Is There a Way to Pay Less Crypto Tax in the UK?

There is no legal way to avoid crypto tax in the UK entirely. There are, however, legitimate strategies that reduce what you owe:

• Use your full CGT allowance each year. Realise up to £3,000 in gains tax-free. It does not carry over.
• Use your spouse's allowance. Transfers between spouses are tax-free. Your spouse can then dispose of the asset using their own £3,000 CGT allowance.
• Harvest losses. Crystallise unrealised losses before 5 April to offset gains in the same or future years.
• Time your disposals. If you are close to the £50,270 higher rate threshold, the timing of disposals can keep gains in the 18% band rather than 24%.
• Deduct allowable costs. Exchange fees and transaction costs can generally be offset against gains. Professional advisory fees are allowable only in specific circumstances, such as where they relate to valuation or apportionment required for the CGT computation.

These strategies require accurate records and precise calculations. CountDeFi builds the data foundation that makes legal tax reduction possible — and defensible.

Need Help With Your UK Crypto Taxes?

UK crypto tax in 2026 is not optional, and HMRC has more visibility into your activity than ever before. The difference between an accurate return and an enforcement-exposed one comes down to data: complete, reconciled, wallet-by-wallet transaction history.

That is what CountDeFi builds. We have served UK crypto investors since 2019, delivering HMRC-compliant tax reports that are forensically accurate and fully audit-ready. Whether you hold Bitcoin on Coinbase, farm liquidity on Curve, or have five years of Kraken history to untangle, we go deeper than any software or traditional accountant can. Book a free call with our UK team.

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