Crypto Taxes UK 2026: Complete HMRC Guide
HMRC has been increasingly active on crypto since 2022. They now share data with major UK exchanges, run “nudge letters” to suspected non-filers, and Section 1011A applies penalties up to 200% of tax owed. Here is the complete UK crypto tax guide for the 2025/26 tax year.
The UK treats cryptocurrency as a capital asset for individuals. Buying and holding is fine — you owe nothing until you sell, swap, spend, or earn crypto. But once you do, HMRC wants its share. The good news: 2026 still has a £3,000 capital gains tax allowance, meaning the first £3,000 of crypto gains each tax year is tax-free.
This guide covers everything UK crypto investors and traders need to know for the 2025/26 tax year. Capital gains rates, share pooling rules, Self Assessment, and how to legally minimize your tax.
🧾 Estimate Your Tax in 30 Seconds
Use our free Crypto Tax Calculator — covers USA, UK, Canada, Australia, Germany, and 10 more countries with up-to-date 2026 brackets.
UK Crypto Tax Basics
HMRC treats crypto in two main ways:
- Capital Gains Tax (CGT): Most individuals. Applies when you sell, swap, spend, or otherwise “dispose” of crypto.
- Income Tax: If you earn crypto from mining, staking, airdrops (some), or as payment for work.
If you trade crypto so frequently that it constitutes a “trade” in HMRC eyes (rare for individuals), it could be subject to Income Tax instead of CGT. The bar is high — most investors stay in CGT territory.
Capital Gains Tax Rates 2026
| Income Band | CGT Rate on Crypto |
|---|---|
| Annual gains up to £3,000 | 0% (allowance) |
| Basic rate income (£12,571–£50,270) | 18% |
| Higher rate income (£50,270+) | 24% |
The annual CGT allowance dropped dramatically — it was £12,300 in 2022/23, then £6,000 in 2023/24, then £3,000 in 2024/25 and remains £3,000 in 2025/26. This means much more of your gains are taxable than 3 years ago.
What Counts as a Disposal?
- Selling crypto for GBP (or any fiat)
- Trading crypto for crypto (BTC → ETH, ETH → SOL, etc.)
- Spending crypto on goods/services
- Gifting crypto (NOT to spouse)
- Donating crypto to charity (no CGT, but cannot claim Income Tax relief)
NOT disposals:
- Buying crypto with GBP
- Transferring between your own wallets
- Gifting to spouse or civil partner
- Holding crypto
Share Pooling Rules (Critical for UK)
UK uses “share pooling” for crypto cost basis — different from USA FIFO/HIFO. Three rules apply in order:
- Same-day rule: If you buy and sell the same coin on the same day, those match first.
- 30-day “bed and breakfast” rule: If you sell crypto and rebuy the same type within 30 days, those match — using the rebuy cost as your basis (prevents simple wash sale tax loss harvesting).
- Section 104 pool: All other holdings of that crypto pool together. When you sell, your cost basis is the average price across the pool.
This is the biggest difference from US tax. UK does NOT allow specific identification or HIFO. Your cost basis is forced to be the pool average.
Income Tax on Crypto (Mining, Staking, Airdrops)
Crypto received as income is taxed at your marginal Income Tax rate when received. 2026 rates:
| Income Band | Income Tax Rate |
|---|---|
| Up to £12,570 | 0% (Personal Allowance) |
| £12,571 – £50,270 | 20% (Basic rate) |
| £50,271 – £125,140 | 40% (Higher rate) |
| £125,140+ | 45% (Additional rate) |
Plus 8% / 2% National Insurance for self-employed earners. When you later sell that received crypto, you also pay CGT on any appreciation — same as US.
Reporting: Self Assessment Tax Return
If you have crypto gains over £3,000 in the tax year, you must file a Self Assessment tax return.
Register for Self Assessment
If you have not filed before, register on gov.uk. You will get a UTR (Unique Taxpayer Reference) within 10 working days.
Calculate Your Gains/Losses
Using share pooling rules. Most people use crypto tax software (Koinly, CoinTracker) to automate this.
Complete the SA108 Capital Gains Pages
Report total proceeds, total cost basis, and net gain/loss. Attach a computation showing your math.
Submit by 31 January
The 2025/26 tax year ends 5 April 2026. Tax return deadline: 31 January 2027 (online). Pay any tax due by the same date.
HMRC and Crypto Exchanges
HMRC has data sharing agreements with most major UK-accessible exchanges. Specifically:
- Coinbase, eToro, Crypto.com share UK user data with HMRC
- Binance UK and Binance.com share data on UK users
- Kraken, Gemini, BitFlyer share data
- Bybit, MEXC, Bitget, OKX historically did not share but DAC8 (effective 2026) increases reporting requirements across EU and UK
The “I will just not declare” approach gets people caught. Section 1011A of TIOPA can apply penalties of up to 200% of tax owed, plus interest, plus potential criminal prosecution.
Legal Tax Minimization Strategies
1. Use Your Annual Allowance Fully
£3,000 tax-free per tax year. If you have unrealized gains, consider selling enough each year to use the allowance.
2. Spouse Transfer (No CGT)
You can transfer crypto to your spouse/civil partner with no CGT. This effectively doubles your annual allowance to £6,000 across the couple. Spouse uses their own cost basis (yours).
3. Hold Through ISA / Pension (Limited)
You cannot directly hold crypto in a UK ISA or SIPP. But ETPs (Exchange Traded Products) tracking crypto are available — gains within ISAs are tax-free.
4. Tax-Loss Harvesting (Carefully)
Sell losing positions to offset gains. Wait 30+ days before rebuying to avoid the bed and breakfast rule. Unused losses carry forward indefinitely.
5. Donate Appreciated Crypto to Charity
No CGT on donations to UK registered charities. Charity gets full value, you avoid the gain.
Software Recommendations
- Koinly: Best UK support, handles share pooling correctly, ~£50-200/year
- CoinTracker: Strong overall, slightly less UK-optimised
- Recap: UK-specific crypto tax software, designed for HMRC rules
- Crypto Tax Calculator: Good UK support, share pooling automated
🧾 Estimate Your Tax in 30 Seconds
Use our free Crypto Tax Calculator — covers USA, UK, Canada, Australia, Germany, and 10 more countries with up-to-date 2026 brackets.
Key Takeaways
- Annual CGT allowance: £3,000 in 2025/26 (down from £12,300 in 2022/23)
- CGT rates: 18% basic / 24% higher
- Crypto-to-crypto trades ARE taxable disposals
- UK uses share pooling — Section 104 pool for cost basis (no FIFO/HIFO choice)
- 30-day rule prevents naive wash sale tax loss harvesting
- Spouse transfers are free — effectively doubles your allowance
- Income from staking/mining taxed at marginal Income Tax rate
- HMRC actively shares data with major exchanges — declare your gains
- Use Self Assessment SA108 if gains exceed £3,000
Frequently Asked Questions
How much crypto can I sell tax-free in the UK?
£3,000 in capital gains per tax year (2025/26). Anything above this is taxed at 18% (basic rate income) or 24% (higher rate). The allowance was £12,300 in 2022/23 and dropped over 3 years.
Are crypto-to-crypto trades taxable in the UK?
Yes — HMRC treats crypto-to-crypto swaps as taxable disposals. Trading BTC for ETH is treated as: (1) selling BTC at current GBP value, (2) buying ETH with proceeds. You owe CGT on the BTC sale based on share pooling rules.
What is share pooling for crypto?
UK requires aggregating all your holdings of a specific crypto into a “Section 104 pool.” When you sell, your cost basis is the average across the pool. You cannot choose specific lots like in the US (no FIFO/HIFO option). Same-day and 30-day rules apply first.
How is staking income taxed in the UK?
Crypto received from staking is taxed as Income at marginal rate (20/40/45%) on receipt-day GBP value. Then when you later sell, you also pay CGT on any appreciation from receipt-day value (using share pooling rules).
What if I do not declare my crypto gains?
HMRC has data sharing with most major exchanges and runs “nudge letters” to suspected non-filers. Penalties under Section 1011A can be up to 200% of tax owed, plus interest, plus potential criminal prosecution. The risk-reward is terrible.
Can I claim crypto losses against my income tax?
No — crypto losses can only offset capital gains, not Income Tax. However, unused losses carry forward indefinitely. Tax-loss harvesting works but requires 30+ days before rebuying (bed and breakfast rule).
Do I need to report crypto if I only hold and never sell?
No CGT is owed for holding alone. But if you receive any income (staking rewards, airdrops with rights, mining), that may need to be reported as Income even without selling. Pure HODLing without any income event = no reporting needed.