DAC8

DAC8 governs reporting, not tax liability itself: it gives tax authorities visibility into crypto-asset transactions, while calculating and declaring what's actually owed remains the individual taxpayer's responsibility under each member state's domestic tax rules. Formally Council Directive (EU) 2023/2226, DAC8 amends Directive 2011/16/EU, the EU's core framework for administrative cooperation in tax matters, to incorporate the OECD's CARF alongside the OECD's parallel amendments to the Common Reporting Standard (CRS).

It requires Reporting Crypto-Asset Service Providers (RCASPs), regardless of where they are established, to report on EU-resident users' crypto-asset transactions. It also updates the EU's existing DAC2/CRS rules to bring in Central Bank Digital Currencies (CBDCs) and specified e-money products, an approach often referred to as "CRS 2.0."

Certain counterparties, such as listed entities, government bodies, international organizations, and central banks, are carved out as "Excluded Persons," so RCASPs don't need to report on transactions with them.

Providers based outside the EU aren't exempt: unless their home jurisdiction already enforces CARF or an equivalent framework, they must register with a single EU member state, providing details such as their name, address, electronic contact information, TIN, and the member states where their reportable users reside.

The core obligations of a Reporting Crypto-Asset Service Provider include:

• Collecting self-certifications confirming each user's name, address, tax residence, TIN and, for entities, their controlling persons
• Monitoring for changes in circumstances affecting a user's reportable status
• Reporting annually to their home member state's tax authority on both the user and their transactions

This is only one regime among several now live in parallel: CARF, DAC8, CRS 2.0, and the US Form 1099-DA, each with different scopes, schemas, and timelines. High-frequency, wallet-based activity generates large volumes of structured and unstructured data that must be reconciled and reported accurately at scale.

Lessons from the Foreign Account Tax Compliance Act (FATCA) and CRS show that most compliance failures stem not from complex rules but from operational gaps and poor data quality. Scalable, cloud-native infrastructure, with automated classification, defensible audit trails, and adaptable workflows, is what lets firms absorb new jurisdictions and schema changes without rebuilding each time.