Home » HMRC has the bit(coin) between its teeth

HMRC has the bit(coin) between its teeth


Stephen Bartlett-Rawlings
Stephen Bartlett-Rawlings Partner | Private Clients 26 October 2023

It’s now two years since HM Revenue and Customs (HMRC) “nudge” letter campaign for cryptoasset holders in the UK began; a low tech warning shot for the most digitally engaged investors to make sure they have their tax affairs in order.

What is a nudge letter?

A ‘nudge’ letter is a standard letter sent to a large group of UK taxpayers by HMRC.

HMRC have been using this tactic more frequently to try and reduce the tax gap – the difference between the tax the government believe should be due compared to what is actually paid by UK taxpayers.

A nudge letter is NOT a tax enquiry into an individual taxpayer’s affairs. It asks taxpayers to consider if their tax affairs are up to date. HMRC are “nudging” taxpayers they believe may have more work to do to fully disclose an area of tax (in this case crypto transactions) correctly.

Who might receive a letter?

HMRC are now able to approach UK based crypto exchanges to get lists of UK cryptoasset holders. They will combine this information with information they hold on which taxpayers have reported crypto transactions under Self Assessment Tax Returns. We would expect that any discrepancy will generate a ‘nudge letter’.

This information sharing may come as a shock to some taxpayers – especially given a key appeal of crypto (and its dictionary meaning) is secrecy.

What sort of crypto transactions would be relevant to tax?

It’s significant that HMRC use the term “cryptoasset” rather than the commonly used term “cryptocurrency”. This is partly because it covers not just assets that are marketed as currencies, but also non-fungible tokens (NFTs) such as artwork, music etc. that are an emerging asset class.

More crucially, HMRC’s view is that bitcoin etc are not currencies and this increases the number of transactions where tax may be due (when compared to using currency).

Types of crypto transactions relevant for tax include:

  • Sale of cryptoasset/currency
  • Exchange of one cryptoasset/currency for another, even if never cashed out to sterling
  • Use of cryptoasset/currency to buy goods, services or donate to charity.
  • Any rewards/returns (including staking rewards) from being involved in the operation of the blockchain etc.

Due to the way that crypto is marketed and the high risk nature of some transactions, many taxpayers may have mistakenly heard that crypto activity is not relevant for tax as it is gambling. Gambling returns are exempt from tax in the UK. Even though many users are dealing in crypto in a similar way to their approach to gambling apps, HMRC are adamant that crypto will never qualify as gambling.

Each type of crypto transaction needs to be reviewed carefully to consider if Capital Gains Tax or Income Tax will be relevant, with resulting differences in rates of tax due, and how relief for losses can be obtained.

What should I do if I receive a letter?

This article was correct at time of publication.

Latest insights

About the author

Stephen has great experience advising individuals on their income tax, capital gains tax and inheritance tax position. He helps to lead a team providing high-quality advice in a clear and concise manner.

Stephen Bartlett-Rawlings, Partner PEM Private Client team

Get in touch

with us.

Please submit this form and our team
will be in touch.

If your enquiry is about careers/work experience opportunities, please contact recruitment@pem.co.uk.

Cambridge HQ

Salisbury House, Station Road,
Cambridge CB1 2LA


Cambridge North

Winship House, Winship Road, Milton,
Cambridge CB24 6AP

For general enquiries
Email: hello@pem.co.uk