Menu
.png&w=3840&q=75)
Two different tax rates, one big headache
Before 30 October 2024, crypto gains were taxed at 10% for basic-rate taxpayers and 20% for higher-rate taxpayers. From that date onwards, HMRC raised these rates to 18% and 24%.
If you sold crypto both before and after this change, you must split your gains and apply the correct rates to each period.
Unfortunately, HMRC’s Self Assessment system still defaults to the old rates, meaning your post-October disposals may be taxed incorrectly unless you manually adjust them.
Manual adjustments are risky
To correct your return, HMRC asks you to use Box 51 on the SA100 (via the SA108 Capital Gains pages) to record the “Adjustment to Tax Due on Gains.”
But manually calculating this adjustment can be time-consuming and confusing, especially if you trade frequently or use multiple wallets and exchanges.
A single error could cause underpayment, delays, or even compliance issues with HMRC.
CryptoBooks automatically applies the correct rates
With CryptoBooks, there’s no need to worry about manual adjustments or complex forms.
The platform automatically separates your crypto gains by date, applies the correct tax rate before and after 30 October 2024, and prepares the Box 51 adjustment for you.
You’ll receive a fully completed SA108 form, ready to use. It’s fast, accurate, and designed to keep you compliant. All while saving you hours of work.
Automatically separates pre/post gains
Applies correct HMRC tax rates
Prepares Box 51 adjustment
Generates HMRC-ready SA108 report
Get 30% Off CryptoBooks Forever!
Start your free account and keep it forever. Upgrade any time for tax reports. Get your plan with a 30% discount forever with the code LIFETIME30 until 31st October.
Need more profiles for your family of crypto investors?
Mark L.
CryptoBooks made my 2023 tax filing seamless. The team really knows UK crypto regulation and helped me optimise gains and losses effectively. Support was quick, clear, and practical. Still my go-to in 2025.
Charles Z.
If you make frequent trades, this tool is indispensable. Tracks everything, calculates accurately and saved me hours of manual work.
Roy R.
By far the most complete crypto tax software I’ve used. It handled my income reporting flawlessly and updates are always aligned with the latest HMRC guidance.
Margaret M.
Exceptionally easy to use. CryptoBooks takes the stress out of tax season, especially with clear UK-compliant reports. Support team is responsive and helpful, whether on chat or email.
Cadence L.
Everything I needed to regularise my crypto taxes was right here, I was genuinely happy to find this platform. The interface is intuitive, and the educational content, especially the blog and videos, is a real bonus.
Robert C.
Consistently reliable. The platform evolves with the rules and translates complexity into practical solutions and the team clearly knows their stuff.
Why CryptoBooks?
+500 wallets or exchanges integrable
Compliant with the UK law
The most accurate reports on the market
Chat support always available