UK Crypto CARF 2026: What Users Need to Know
Updated 17 October 2026
General information only, not tax advice. We are not HMRC and are not affiliated with it. Check GOV.UK and your platform. Last checked against GOV.UK: 17 October 2026. Anything marked expected should be re-checked; we plan to re-check the CARF pages on 1 December 2026. Examples use made-up figures or GOV.UK's own examples. Do not enter personal identifiers (National Insurance number, UTR, name, date of birth) on this site.
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Short answer: GOV.UK says that if you provide cryptoasset services in the UK you must collect data and report it to HMRC under the Cryptoasset Reporting Framework (CARF). As a user, you must give identifying details to every cryptoasset service provider you use, and HMRC says it uses the information to link your cryptoasset activity to your tax record. The first platform reports are due between 1 January 2027 and 31 May 2027 for 1 January to 31 December 2026.
The guide map
- Key dates
- Self-certification requests
- What HMRC will receive
- Capital Gains Tax 2026-27
- Non-UK platforms, wallets and several accounts
- Reconcile your records
- Record-keeping tools (Ad)
Nothing here suggests avoiding or hiding accounts. The CARF Readiness Checker runs in your browser and does not store what you enter. All guides are listed on one page.
What we could not verify
Uncertain. These points were not confirmed on the pages read. A re-check of the GOV.UK CARF pages is planned for 1 December 2026.
- Which platforms will send requests, and when: not stated by GOV.UK. Do not rely on a specific platform's timetable.
- The exact contents of each platform's report beyond "user details and a summary of transactions".
- HMRC's online reporting service for platforms is "not live yet" per GOV.UK on 17 October 2026.
- Staking, airdrops, mining and lending income are now covered in crypto income (HMRC manual and GOV.UK read 17 October 2026). Detailed DeFi cases (CRYPTO61000 onwards) and whether platforms report reward income under CARF: not verified.
- Interaction with EU DAC8 and other countries' rules.
- We plan a re-check of the GOV.UK CARF pages on 1 December 2026.
Sources (official)
- GOV.UK (HMRC), Reporting cryptoasset user and transaction data (last updated 3 June 2026) — https://www.gov.uk/guidance/reporting-cryptoasset-user-and-transaction-data (read 17 October 2026)
- GOV.UK (HMRC), Information you need to give to UK cryptoasset service providers (last updated 1 January 2026) — https://www.gov.uk/guidance/information-youll-need-to-give-to-uk-cryptoasset-service-providers (read 17 October 2026)
- GOV.UK (HMRC), Check if you need to report cryptoasset data to HMRC (last updated 1 January 2026) — https://www.gov.uk/guidance/check-if-youll-need-to-report-cryptoasset-data-to-hmrc (read 17 October 2026)
The CARF Readiness Checker runs in your browser. It does not store what you enter and it does not ask for personal identifiers.