Your keys, your coins, your maths.

Your crypto taxes, computed on your machine, shown with the working.

TaxHash calculates UK capital gains, income and loss reports without your data ever leaving your computer, and shows the matching rule and citation behind every disposal.

Launch app Free up to 1,000 transactions. No signup. Nothing uploaded.
Capital gains, 2024 to 2025 Sample data
£0.00
net gain across 14 disposals
0.25 BTC disposed 12 Mar 2025 +£1,208.44
Matched same-day under s105 TCGA 1992 HMRC CRYPTO22200
API calls this page has made since you arrived, 0. The app works the same way.

The big-name apps tell you a number.
TaxHash proves it.

Every disposal shows its matching rule

Same-day under section 105, thirty-day under section 106A, or the section 104 pool, each disposal names the rule that matched it and the law behind it on the row, and every generated report carries its HMRC manual citation.

A disposal expanded in the app, 0.2 BTC matched against the section 104 pooled average, with the statutory matching order explained on the row

Every import proves its count

Bring the export from whichever tax app you use today, the four big ones are all supported, and the count reconciles on screen, row by row. Any row the app refuses is shown with its reason rather than guessed at.

An imported Koinly file reconciled on screen, 17 rows become 16 tax events with the arithmetic shown and the one refused row explained

Every wallet balances, and says so

A reconciliation confidence score with named deductions, per-wallet balancing and fix wizards, so you know exactly how solid the ground under your report is.

The reconciliation confidence score at 68, with named deductions attributed to specific tax years, wallets and rows

The bill that comes back every April, and the one that does not.

£0

Three Aprils on the big one's 1,000-transaction plan, at its published £79 per tax year. Next April is already invoiced in spirit.

£0

The same portfolio, the same three years, every report downloaded, here. Under 1,000 transactions the price never stops being zero.

Its closest rival prices per tax year too. The subscription ones stop your reports the moment you stop paying. All of it is published openly, the numbers below are theirs, checked on the date shown.

TaxHash
Price for 1,000 transactions Free £79 per tax year $99 per tax year £119 per year, subscription
Three tax years £0 £237 $297 £119 to £357 depending on when you file
Reports on the free tier All of them None None No free tier

Names redacted out of politeness, not fear. Prices checked 20 August 2026 from each vendor's published pricing page, and the receipts are real, full table and sources on the pricing page.

Reports are free here because your machine does the computing. Charging you yearly for arithmetic your own laptop performs is a business model, not a necessity.

Open the network tab. Nothing moves.

Every other tax app works by taking your transaction history onto their servers. TaxHash cannot leak what it never receives. Import your files, run every report, and watch the network panel stay empty. The only optional exception is exchange sync, which talks to Kraken or Binance through a relay that holds nothing, and the app tells you before it happens.

The app, doing everything
Network panel, watching
0 requests since load
No activity. There is nothing to record.

This panel simulates what the network tab shows. Verify it for real, press F12 inside the app and run your whole return.

From export to filed in three steps.

01

Bring your history

Bring the export from whichever tax app you use today, scan a wallet address, or sync Kraken and Binance. The import count reconciles on screen against your source file.

02

Read the working

Same-day, bed and breakfast, section 104 pooling, each disposal shows which rule matched and the law behind it, and reports cite the HMRC manual.

03

Download everything

Capital gains, income, loss claims and around ten more reports, free under 1,000 transactions, ready for self assessment.

Coming guidance that shows the legal moves to minimise your own bill, and a compliance calendar with your specific deadlines.

When you want a human, we checked them first.

Directories on other tax platforms list anyone who signs up. Every accountant on TaxHash has had their professional body membership verified on the register, their identity confirmed, and their crypto competence tested in a structured interview before appearing. The list is short on purpose. One button and one plain email, and your data goes only where you choose to send it.

  • Identity verified on the register
  • Credential current, checked at source
  • Practice real and insured
  • Competence tested in interview
  • Conduct record clean
  • Re-verified every twelve months
Meet the professionals

Fair questions.

Is it really free
Under 1,000 transactions, yes, everything, downloads included. Above that, one fee that covers every tax year, past and future, never a renewal.
How can it work without a server
The engine is a single file that runs in your browser. Your machine does what their servers do, which is why nobody needs to charge you yearly for it.
What about exchange sync
Kraken and Binance sync goes through a relay because browsers cannot call exchange APIs directly. The relay forwards and forgets, holds no accounts and stores nothing, and the app never sends your transaction history anywhere.
Which country does it cover
The UK, fully, with the matching rules shown per disposal and HMRC manual citations in every report. US support is being built. Nothing else is supported yet and we will not pretend otherwise.
Can I trust the numbers
Check them. Every disposal shows its matching rule and the law behind it, every report cites the HMRC manual, and every import shows its reconciliation against your source file. If you want a professional to review it, the directory is one click away.
What if I already use one of the big-name apps
Export your transactions, import them here, and the row count reconciles on screen. Nothing to retype.

Run it now, decide after.

No signup, no upload, no card, and under 1,000 transactions it is free for good.

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