

New crypto tax reporting rules took effect in 2026, widening how tax authorities monitor activity across the cryptocurrency market. Crypto platforms now have to collect more customer and transaction data during the 2026 tax year. After that, participating jurisdictions plan to begin exchanging the reported information across borders in 2027.
The OECD’s Crypto-Asset Reporting Framework sets a shared reporting standard for participating jurisdictions. An OECD commitments list shows 48 jurisdictions plan to start their first CARF information exchanges by 2027, including the United Kingdom, France, Germany, Japan, Korea, Brazil, and South Africa.
CARF focuses on standardized, automated reporting for in-scope crypto-asset service providers. It expects providers to collect customer details and transaction information that supports crypto tax reporting then route reports through domestic authorities for international exchange.
In the UK, official guidance says cryptoasset service providers must report user and transaction data to HMRC from January 1, 2026. The UK framework links to CARF background materials and supports later information exchange with other participating jurisdictions.
These requirements increase the amount of residency and activity data platforms must collect during onboarding and ongoing use. As a result, reporting obligations now reach more wallet movements and trading activity that previously stayed fragmented across platforms.
In the European Union, the European Commission says DAC8 enters into force on January 1, 2026. The Commission also says crypto-asset service providers must start collecting data on reportable transactions of EU-resident users from that date.
DAC8 also sets the timing for initial reporting. The Commission says reporting falls due within nine months after the first fiscal year covered, which places the first reporting window between January 1 and September 30, 2027. Authorities will then provide the reported information to several nations.
As oversight expands, industry research has put more focus on privacy as a core infrastructure feature. In an a16z crypto post, General Partner Ali Yahya wrote, “Bridging tokens is easy, bridging secrets is hard,” while describing privacy-driven network effects.
The same post connected privacy to communications tooling. Shane Mac, CEO of XMTP Labs, wrote, “Private servers require ‘trust me’ — but having no private server means ‘you don’t have to trust me.’” That framing reflects a broader shift toward privacy-by-design tools as reporting obligations scale.
CARF and DAC8 set 2026 as the key data-collection year, with major reporting in 2027. Consequently, platforms are likely to request more identity and residency details, while users face more complex recordkeeping across wallets, chains, and exchanges.