Software

Best crypto tax software 2026 UK: HMRC reports, share-pooling, CARF

Best crypto tax software for UK Self Assessment in 2026. Direct HMRC report download, share-pooling, CARF data import compared across Koinly, Coinpanda, CoinLedger.

Portrait of Peder KjosBy Peder Kjos2. april 2024Updated 3. mai 20269 min read
Modern laptop showing a crypto tax dashboard with British pound figures on a desk with a steaming mug, soft daylight, no people, no readable text

The best crypto tax software for UK Self Assessment in 2026 is Koinly, with Coinpanda in second and CoinLedger a niche pick for dual UK/US filers. The 2026 cycle has added two material features: direct HMRC report download and CARF-aligned exchange imports that cut reconciliation time roughly in half compared to 2024.

Best crypto tax software 2026 UK

What changed in 2026

Two regulatory shifts make 2026 different to previous years:

  • CARF reporting.The OECD's Crypto-Asset Reporting Framework went live across the EU and UK in 2026. Exchanges share user transaction data with HMRC. That doesn't change what you owe — but it means your figures need to match what HMRC already has on file. Software that ingests data via CARF-aligned APIs reduces the chance of an enquiry triggered by a mismatched total.
  • Direct HMRC report. Koinly and a couple of competitors now produce a single download formatted to drop straight into SA108 — no manual re-typing of box totals. This was previously a CSV-and-cross-check exercise.

On the rate side, the 24% upper CGT rate (up from 20%) introduced in October 2024 is now established. The Annual Exempt Amount stays at £3,000.

Koinly — best overall

Price: Free preview; £39 Newbie (100 tx), £79 Hodler (1,000 tx), £159 Trader (10,000+ tx) per tax year.

Koinly remains the default UK choice. The 2026 release added:

  • One-click HMRC Capital Gains Summary export, mapped to SA108 boxes 14–22.
  • CARF-aligned import for Coinbase, Binance, Kraken and Bitstamp — fewer reconciliation warnings.
  • A negligible-value-claim flag that auto-generates a Section 24 election PDF for dead tokens.
  • Improved DeFi parsing across Arbitrum, Optimism, Base and Polygon.

We tested with the same 320-transaction portfolio used in previous years. The 2026 import surfaced 4 missing cost-basis warnings vs. 14 in the 2024 run — directly attributable to CARF data sharing closing the gaps where internal transfers had previously confused the matching engine.

Full hands-on in our Koinly review.

KoinlyOur top pick for UK Self Assessment — HMRC-ready CGT report and 800+ exchange integrations.
Try free →

Coinpanda — best entry price

Price: Free preview; $49 Hodler (100 tx), $99 Trader (1,000 tx), $189 Pro (3,000 tx).

Coinpanda's 2026 release added share-pooling improvements and a clearer SA108 export, though it still requires one manual cross-check that Koinly handles silently. CARF imports are limited to a smaller set of exchanges. Where Coinpanda wins is the entry price for sub-25-transaction portfolios — its smallest tier can come out cheaper than Koinly's Newbie plan.

See our Coinpanda review for the test results.

CoinLedger — best for dual UK/US filers

Price: $49 Hobbyist (100 tx), $99 Investor (1,500 tx), $199 Unlimited.

CoinLedger's primary market is US Form 8949 filers, but it produces a UK report from the same data. For a recent expat or a US person tax-resident in the UK, that's a real workflow saving — no other major tool outputs both natively from a single import.

For UK-only filers it lags Koinly on share-pooling correctness — bed-and-breakfasting trades occasionally need manual flagging. Full review at our CoinLedger review.

Feature comparison

FeatureKoinlyCoinpandaCoinLedger
HMRC Capital Gains SummaryDirect PDFPDF + manual checkApproximation
Share-pooling (same-day / 30-day / S104)Automatic, correctAutomaticNeeds manual flagging
CARF-aligned importsCoinbase, Binance, Kraken, BitstampCoinbase, BinanceCoinbase only
DeFi protocol coverageExcellentGoodGood (US-leaning)
NFT supportYesYesYes
Free tier shows full HMRC reportYes (preview only)Limited previewLimited preview
Entry price (per tax year)£39$49 (≈£40)$49 (≈£40)
Accountant inviteFreeFreePaid plans only

Summary

For 2026 UK Self Assessment with crypto: Koinly for almost everyone; Coinpanda if you have very few transactions and want the cheapest paid plan; CoinLedger if you also file in the US.

For background, see our UK crypto tax guide and our companion roundup of crypto tax software for UK filers. HMRC's cryptoassets manual is at gov.uk/hmrc-internal-manuals/cryptoassets-manual.

Frequently asked questions

What is the best crypto tax software for UK in 2026?

Koinly. The 2026 release added direct HMRC Capital Gains Summary download, expanded CARF (Crypto-Asset Reporting Framework) data import for exchanges that share with HMRC, and a sharper share-pooling engine. It remains the only major tool that gets HMRC's matching order right out of the box.

What is CARF and does it affect my crypto tax software?

CARF is the OECD's Crypto-Asset Reporting Framework — a global standard for exchanges to report user data to tax authorities, including HMRC. From 2026 most major exchanges share user transaction data with HMRC automatically, so software that imports cleanly via CARF-aligned APIs reduces reconciliation work.

Does Koinly support direct HMRC report download?

Yes. Koinly's 2026 update produces a Capital Gains Summary PDF that maps directly onto the SA108 boxes. You still file via HMRC online or your accountant — Koinly produces the numbers, you submit them.

Are free crypto tax tools enough for UK Self Assessment?

For most casual investors with under 100 transactions, Koinly's free preview is enough to confirm you are below the £3,000 allowance. To download the actual report and file confidently you need the paid tier — usually £39 per tax year. Genuinely free tools without share-pooling are not safe for UK use.

How long does it take to produce a UK crypto tax report?

About 30 to 60 minutes for a typical portfolio across three or four exchanges and one or two wallets. Most of the time is generating read-only API keys; the calculation itself is instant. DeFi-heavy portfolios with niche L2 protocols can take longer because of manual transaction tagging.