Cryptocurrency investors under HMRC scrutiny
HMRC has obtained information about those who have bought or sold cryptocurrencies and says it will be writing to them in November. How should someone respond if they receive a letter?
HMRC has said it will send so-called “nudge letters” to anyone for whom it’s been sent information from cryptocurrency brokers. It says the purpose of the letters is to remind taxpayers “to review their transactions to ensure that they are declared correctly”.
Any difference in the buying and selling price of cryptocurrencies is generally subject to the capital gains tax rules, either as a taxable gain or loss. Tax will only be payable where all capital gains less capital losses for the year exceed the annual exemption. However, transactions should be reported on self-assessment tax returns if their value exceeds certain limits or losses were made.
In some circumstances buying and selling cryptocurrencies counts as trading income in which case any amount of profit (or loss) is subject to income or corporation tax rules and must be reported to HMRC.
Information from HMRC about when cryptocurrency capital gains or losses should be declared is available here. For HMRC’s detailed guidance on the taxation of cryptocurrency transactions look here.
Related Topics
-
HMRC updates advisory fuel rates from 1 March 2026
HMRC has published the latest advisory fuel and electric rates (AFRs) for company cars, effective from 1 March 2026. Several rates have changed since the previous quarter. What should employers be aware of?
-
5 April deadline approaching for key tax relief claims
With the end of the 2025/26 tax year now less than seven weeks away, business owners and company directors should remember that several valuable reliefs and elections must be made before 5 April. Which opportunities are about to close?
-
HMRC reminds employers about payrolling benefits deadlines
HMRC is reminding employers of key dates and preparations ahead of the transition to real-time payrolling of benefits in kind (BiKs). With an important voluntary registration deadline approaching, what do payroll teams need to know?

This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.