Live engine numbers

ChainTax has processed £1,044,894.47 in crypto disposals.

Across 5 chains and 33 protocol-specific classifiers. Every number on this page is computed from the live database once a day — no marketing rounding, no aspirational figures.

Last updated 13 May 2026.

disposals matched

Each one run through same-day, 30-day Bed & Breakfast, and Section 104 pooling per HMRC rules — not a single FIFO approximation.

£287,503.75

DeFi income processed

Staking rewards, LP fees, airdrops, and protocol incentives — classified, priced at receipt date, and ready for SA100 Other income.

5 / 33

chains / protocols

Ethereum, Arbitrum, Optimism, Base, Polygon — plus dedicated handlers for Uniswap, Aave, Lido, Curve, Balancer, GMX, and 27 more.

Counter-positioning

ChainTax has prevented £37,219.41 in over-reported gains versus naive FIFO.

We re-ran every disposal through naive FIFO matching — the default method most non-UK and spreadsheet-based tools use — and diffed against the HMRC-correct gain ChainTax actually filed. The difference is the over-reporting our users avoided by using the rules HMRC actually applies (same-day, 30-day Bed & Breakfast, then Section 104 average-cost pooling) instead of first-in-first-out.

The number is a sum across all users, clamped at zero. A positive figure means FIFO would have over-stated gains in aggregate — almost always the case once a S104 pool stabilises.

How we calculate this

Every figure is back-computed from the production database.

Disposals matched — SELECT COUNT(*) FROM "TaxEvent" WHERE type = 'CAPITAL_GAIN'. Each row represents a single disposal that has passed classification, pricing, and HMRC matching.

Gains processed — sum of TaxYear.totalGains across all users. Aggregate only — never per user. The denormalised column is bumped on every recompute.

DeFi income processed — sum of TaxEvent.proceeds WHERE type = 'INCOME'. Staking, LP fees, airdrop FMV at receipt.

Over-reporting prevented — we re-run every disposal through naive FIFO and diff the total positive gain against the HMRC-matched figure ChainTax actually returned. Result clamped to zero (a negative diff would mean HMRC matching over-stated — vanishingly rare in aggregate, but the public figure stays honest either way).

We don't publish user counts here. They become a credible signal once they cross a threshold worth citing — and once they do this page will say so plainly. Until then the engine output is the story.

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