A Beginner’s Guide to Crypto from a UK Tax Perspective
Chrissy Leach • 1 September 2025
Your simple guide to UK crypto tax rules
Cryptocurrency has moved from a niche interest to a mainstream topic. Whether you’re buying Bitcoin for the first time, dabbling in Ethereum, or trading NFTs, you’ll quickly realise there’s one thing you can’t ignore: tax.
In the UK, HMRC treats crypto very differently from traditional currency - and not knowing the rules can land you with unexpected tax bills (and penalties).
This beginner’s guide will walk you through the basics of crypto tax in the UK, so you can stay on the right side of the law.
What counts as crypto for UK tax purposes?
HMRC refers to cryptocurrency as cryptoassets. This includes:
- Exchange tokens (e.g. Bitcoin, Ethereum, Litecoin)
- Utility tokens (tokens that let you access a service)
- Security tokens (tokens representing ownership or debt)
- Non-fungible tokens (NFTs)
If you own or trade any of these, you may have a tax liability.
Is crypto taxed in the UK?
Yes - but not in the way you might think. HMRC does not treat crypto as money or currency. Instead, it’s treated more like a form of property or investment.
The two main UK taxes that might apply to your crypto are:
- Capital Gains Tax (CGT) – When you sell, swap, spend, or gift crypto.
- Income Tax – When you’re paid in crypto or receive it through mining, staking, or airdrops.
Capital Gains Tax on crypto
If you sell or dispose of crypto, you may need to pay Capital Gains Tax. This includes:
- Selling crypto for GBP or another currency
- Swapping one crypto for another
- Using crypto to pay for goods or services
- Giving crypto away (other than to a spouse or civil partner)
You only pay CGT on your profits, not the total value. There's a tax free CGT allowance (£3,000 for 2025/26) and you'll pay tax on any gains above this. You can also claim your crypto losses to be used against other capital gains.
Example:
You bought 1 Bitcoin for £15,000
You sold it for £25,000
Profit = £10,000
Rates:
18% for basic rate taxpayers
24% for higher and additional rate taxpayers
Income Tax on crypto
You may need to pay Income Tax if you receive crypto as:
- Salary or payment for services
- Mining or staking rewards
- Airdrops (if received in exchange for doing something, like promoting a project)
In these cases, the value of the crypto at the time you receive it is added to your income and you'll pay income tax and national insurance on your profits.
How HMRC knows about your crypto
HMRC has agreements with major UK crypto exchanges and can request customer data. If you think they won’t find out, think again - it’s safer (and cheaper) to declare your gains correctly from the start.
Record keeping for crypto tax
HMRC expects detailed records for every crypto transaction, including:
- Date of transaction
- Type of asset
- Number of units
- Value in GBP at the time
- Transaction fees
- What the transaction was for (sale, swap, etc.)
Using crypto tax software (like Koinly or CoinTracker) can save hours of admin.
Do you have to pay tax if you haven’t cashed out?
Yes - in some cases. Even if you haven’t converted crypto to GBP, swapping one coin for another or using it to make a purchase can trigger a taxable event.
How to report crypto on your tax return
If you have taxable crypto gains or income:
- Register for Self Assessment (if you’re not already registered).
- Complete the Capital Gains section and/or Income section of your return.
- Pay any tax due by the deadline (31 January following the end of the tax year).
Common crypto tax mistakes to avoid
- Thinking “it’s not real money” so it’s not taxable
- Forgetting that swaps count as disposals
- Ignoring small gains that push you over the allowance
- Not keeping records from the start
- Missing the tax return deadline
Final thoughts
If you're investing in crypto then you need to understand your tax obligations as it will save you stress, fines, and unwanted surprises later on.
If you’re unsure, speak to a tax professional who understands crypto.
FAQs: Crypto
Q: Do I pay tax when I buy crypto?
A: No. Buying crypto isn’t taxable — tax applies when you dispose of it.
Q: What’s the CGT allowance for 2025/26?
£3,000 per person.
Q: Do I pay tax on crypto losses?
You can offset crypto losses against gains to reduce your tax bill - but you must report them to HMRC.
Q: Can HMRC track my crypto?
Yes. They can request information from UK-based exchanges and international partners.
Many business owners underestimate the real cost of employment beyond the salary they agree to pay
Learn how to read rental accounts and identify the key figures every UK landlord should monitor.
Learn how to read self-employment accounts and identify the key figures every UK sole trader should monitor.
Learn how to read limited company accounts, understand FRS 105 and FRS 102 Section 1A, and identify the key figures every UK company director should monitor.
A UK Chartered Accountant’s Guide for Business Owners and Taxpayers
With anyone able to call themselves an accountant in the UK, choosing a Chartered Accountant gives you greater protection, expertise, and peace of mind.
Confused about Making Tax Digital? Here’s whether you really need an accountant, and how to stay compliant without the stress.
If you’ve been asked to pay tax in July, it’s likely a payment on account. Here’s how it works, how it’s calculated, and what to do if you can’t pay.
MTD ITSA first quarterly update explained for UK sole traders and landlords. Deadlines, what to file, and how CJL Accountancy can help.
The UK government has increased the statutory mileage rates from 6 April 2026 - here’s exactly what it means for you.
