Two prices. One of them is zero.
Free forever
Up to 1,000 transactions. Every importer, every report, every tax year. Download everything. No signup, no card, no trial clock. This is not a preview, it is the product.
Launch appOne account fee
1,000 to 9,999 transactions. Covers every tax year you have ever had and every one still to come. Buy it in 2027, use it in 2035. Never per year, never a subscription.
Get your key, £39 oncePayment happens on Stripe's page. Your activation key appears the moment you finish, enter it in the app under Settings, done. The key verifies on your machine and works offline, forever.
Capital gains, income, loss claims and around ten more reports, all included in both tiers.
Trader
Up to 50,000 transactions, every tax year, every report. High-volume traders pay competitors about this much every April. Here it is one payment, and next April costs nothing.
Get your Trader key, £129 onceDesk
Up to 250,000 transactions and priority support. Beyond that, tell us your volume and we cut a key to fit. Working with an accountant, they use the app free, see how sharing works.
Get your Desk key, £299 onceThe standing rule: you never pay twice for tax maths. A key buys computation forever.
Larger history, or want to see it work on real data first? Load the worked example in the app, free and instant, or book a 25 minute walkthrough and a human will show you.
What the same portfolio costs elsewhere
Prices below are the vendors' own published figures, checked on the date shown under the table, linked at the bottom of this page. The scenario is a UK investor with 1,000 transactions filing three tax years, because that is where the pricing model becomes arithmetic.
| gains.tax | tax app one, name in the sources below | tax app two, name in the sources below | tax app three, name in the sources below | tax app four, name in the sources below | |
|---|---|---|---|---|---|
| Plan needed for 1,000 transactions | Free | Their mid tier | Their mid tier | Their pro tier | Their entry tier |
| Price | £0 | £79 per tax year | $99 per tax year | $169 per year, subscription | £119 per year, subscription |
| Three tax years cost | £0 | £237 | $297 | $169 to $507 depending on when you file | £119 to £357 depending on when you file |
| Reports on the free tier | All of them | None | None | None, 7-day trial | No free tier |
| Reports if you stop paying | Yours forever | Only years you bought | Only years you bought | Access ends | Access ends |
| Your data lives | On your machine | Their servers | Their servers | Their servers | Their servers, client-side encrypted |
Sources, checked 20 August 2026. Names redacted above out of politeness, the receipts are real and in order.
- Koinly pricing, accessed 20 August 2026.
- CoinLedger pricing, accessed 20 August 2026.
- CoinTracking pricing, accessed 20 August 2026.
- Recap pricing, accessed 20 August 2026.
The first two price per tax year, each year of reports is a separate purchase. The second two are annual subscriptions that include past years while the subscription is active. The fourth encrypts your data on your device before it reaches their servers, the last row reflects that.
Why the free tier can afford to exist
Server-based tax apps pay to store and compute every user's data, so every user must eventually pay them. gains.tax runs on your machine. Your computer does the computation, your disk stores the data, and our costs stay near zero whether you have ten transactions or ten thousand. We charge one small fee at the point where the product is clearly earning its keep, and nothing before, and nothing again.
The fee funds continued engine updates as each tax year's rules change, delivered to the same app, which stays free to run for everyone who already has it.