Research Library · Reading path

Unpaid Tax on Crypto: What HMRC Receives and How to Disclose

HMRC now receives data from UK crypto platforms. These entries explain what is reported and how to put right tax you owe. Every entry links to its original source. A tax adviser can help with a disclosure.

Tell HMRC about unpaid tax on cryptoassets
HMRC
Guidance
2024-01-15
Tax

Describes HMRC's voluntary disclosure service for unpaid tax on cryptoassets, including calculating tax, interest and penalties and submitting a disclosure.

Information you need to give to UK cryptoasset service providers
HMRC
Guidance
2026-01-01
Tax

Explains the identifying details individuals and entities must give to cryptoasset service providers under the Cryptoasset Reporting Framework.

Reporting cryptoasset user and transaction data
HMRC
Guidance
2026-06-03
Tax

Explains when and how cryptoasset service providers must report user and transaction data to HMRC under the Cryptoasset Reporting Framework.

Check if you need to pay tax when you sell cryptoassets
HMRC
Guidance
2026-10-05
Tax

Explains when Capital Gains Tax may be due on selling, exchanging, spending or giving away cryptoassets, and how to work out gains, pool costs, keep records and report.

Capital Gains Tax summary notes (SA108 Notes 2026)
HMRC
Guidance
2025-12
Tax

Notes for completing the 2025-26 Capital Gains summary pages, including the dedicated cryptoassets section in boxes 13.1 to 13.8.

Implementation of the Cryptoasset Reporting Framework (CARF)
HMRC
Policy paper
2025-06-25
Tax

Tax information and impact note on introducing the Cryptoasset Reporting Framework in the UK from 1 January 2026.

The Reporting Cryptoasset Service Providers (Due Diligence and Reporting Requirements) Regulations 2025
legislation.gov.uk
Legislation
2025
Tax

Statutory instrument (SI 2025/744) implementing the OECD Crypto-Asset Reporting Framework, requiring UK-linked providers to carry out due diligence and report user information to HMRC.

CRYPTO100300 - Compliance: information powers
HMRC
Manual
2021-03-26
Tax

Describes the powers HMRC caseworkers use to obtain information from cryptoasset exchanges, including Schedule 23 and Schedule 36 notices, the importance of the exchange's jurisdiction, and routes used in criminal cases.

CRYPTO10400 - Introduction to cryptoassets: record keeping
HMRC
Manual
2021-03-26
Tax

Sets out why individuals must keep their own cryptoasset records, the wallet, exchange and bank evidence that counts, and the transaction details HMRC expects to see in an enquiry.

For professionals

For accountants, solicitors and financial advisers

The Library is free to use and to share with clients. Every entry links to its original source, and the reading paths follow the questions clients bring: Bitcoin in an estate, gains on disposal, cryptoasset ETNs in an ISA, Bitcoin held by a company.

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