Best Crypto Tax Software for UK Investors (2025 Comparison)

Choosing the right crypto tax software can save you hours of manual calculations and help ensure HMRC compliance. Here is how the main options compare for UK crypto investors in 2025.

What to look for

The most important features for UK users are HMRC-compliant calculations (Section 104 share pooling, same-day rule, 30-day bed-and-breakfasting rule), multi-chain support, exchange import capabilities, and the ability to generate a report suitable for Self Assessment. Price also matters — some tools charge significant fees for higher transaction counts.

CryptoLens

CryptoLens is purpose-built for UK investors. It supports 8 chains natively (Ethereum, BSC, Polygon, Solana, Arbitrum, Optimism, Avalanche, and Base), applies proper HMRC share-pooling rules, and generates PDF and CSV tax reports. The free tier lets you scan any wallet and see a tax estimate with up to 10 transactions. Pro plans start at £4.99/month and include unlimited scans, full tax reports, and DeFi position tracking. Unique features include the Fumble Checker (showing your biggest missed gains) and a multi-chain gas tracker.

Koinly

Koinly is one of the most established crypto tax platforms, supporting over 300 exchanges and wallets. UK-specific plans start around £49/year for up to 100 transactions. Koinly generates HMRC-compatible reports and supports DeFi, NFTs, and margin trading. The main downside is cost — heavy traders with thousands of transactions can pay £179/year or more.

CoinTracker

CoinTracker offers good multi-chain support and exchange integrations. UK pricing starts at around $99/year. It supports share pooling and generates tax reports, though some users report that DeFi transaction categorisation requires manual review. The free tier is limited to 25 transactions.

Recap (formerly Bitcoin.tax)

Recap is a UK-founded platform specifically designed for HMRC compliance. Pricing starts at £149/year. It has strong exchange import support but limited on-chain wallet scanning compared to newer tools. Good for users who primarily trade on centralised exchanges.

Which should you choose?

For UK investors who want an affordable, multi-chain tool with native HMRC compliance, CryptoLens offers the best value — especially at £4.99/month compared to annual fees of £49–£179 elsewhere. If you trade primarily on centralised exchanges and need support for 300+ platforms, Koinly is a solid choice despite the higher cost. Try scanning your wallet with CryptoLens free to see your tax estimate before committing to any paid plan.