In a significant regulatory update, the UK government is poised to extend its Cryptoasset Reporting Framework (CARF) to include UK residents, aiming to enhance transparency and oversight within the cryptoasset sector. This new requirement will compel both domestic and overseas cryptoasset service providers (RCASPs) serving UK clients to collect and submit detailed transaction data related to UK resident users to HM Revenue & Customs (HMRC). This change will be incorporated into the Finance Bill for 2025-26 and will activate upon receiving Royal Assent. Additionally, secondary rules already set to take effect on January 1, 2026, will further streamline data handling.
CARF, initiated as a global framework to facilitate tax data exchange across jurisdictions, was previously limited in its application to non-residents. With this new amendment, UK RCASPs will be mandated to gather information on transactions made by UK residents, aligning their reporting with international standards. This structured dataset, compiled annually, will empower HMRC to effectively monitor and verify declarations concerning cryptoasset transactions, thereby boosting compliance efforts.
The legislative changes are slated to revise existing regulations, particularly amending regulation 6 of “The Reporting Cryptoasset Service Providers (Due Diligence and Reporting Requirements) Regulations 2025.” This alteration will broaden the scope of due diligence and reporting obligations to ensure all UK resident crypto users are accounted for, reflecting individuals and entities under UK control. HM Treasury will retain the authority to maintain and update this regulatory framework as needed.
Set against a timeline where current regulations were adopted on June 25, 2025, the new obligations are expected to add only a limited incremental burden on around 50 affected businesses, which will have to revise their technical processes and software to comply. HMRC has assessed that the financial impact on the Exchequer will be negligible, emphasizing that this initiative is intended more for increasing transparency than generating immediate revenue.
For individuals engaged in crypto transactions, this regime doesn’t impose new taxes or alter existing filing responsibilities. However, it does heighten the likelihood of HMRC acquiring complete and accurate transaction data. HMRC’s evaluation indicates that most RCASPs are structured as corporate entities, suggesting that this measure is unlikely to disadvantage groups possessing protected characteristics disproportionately.
Overall, the extension of CARF to UK resident users of cryptoassets strengthens the framework for tax transparency and international cooperation in data exchange, without imposing significant operational costs on either businesses or the tax authority. This move aligns crypto service providers with conventional financial sector standards for due diligence and reporting, reflecting an ongoing evolution in regulatory oversight in the rapidly evolving digital asset landscape.
