EU and UK crypto tax reporting for 2026 is already underway

Crypto users in the EU and UK are already generating the data that may appear in tax reports sent to authorities in 2027. Since Jan. 1, 2026, the EU's DAC8 rules and the UK's Cryptoasset Reporting Framework (CARF) have required covered platforms to collect user details and reportable transaction data during the 2026 tax year.

For investors, the practical point is that the platform holding the account matters as much as where the user lives. EU crypto-asset service providers report first to their home country's authority, which can then pass data to another EU member state if the user is tax resident there. UK providers send reports to HMRC, and overseas sharing depends on whether the user's jurisdiction has an active arrangement with the UK and appears on the UK's reportable-jurisdiction list.

The first UK reports covering 2026 activity must be filed with HMRC between Jan. 1 and May 31, 2027. In the EU, providers file during 2027 under member state rules, and authorities must exchange information on nonresident EU users by Sept. 30, 2027.

These reports are summaries, not full tax calculations. They can include annual amounts, values, units, and transaction categories, but they do not calculate cost basis, gains, or tax due. Users still need their own exports, wallet records, transfer hashes, fees, statements, and acquisition history to reconcile what platforms report.