Quick answer
CARF is the OECD's global crypto tax reporting standard — designed to make hiding offshore crypto gains impossible.
Regulations
Australia
Canada
Germany
India
Japan
Singapore
United Kingdom
United States
CARF (OECD)
OECD's Crypto-Asset Reporting Framework requiring crypto service providers to report user data to national tax authorities for international exchange.
AustraliaCanadaGermanyIndiaJapanSingaporeUnited KingdomUnited StatesUnderstanding CARF (OECD) on crypto
The Crypto-Asset Reporting Framework (CARF) is an OECD standard published in 2022 that establishes rules for automatic exchange of information about crypto-asset transactions between tax authorities globally. It requires Crypto-Asset Service Providers (CASPs) to collect and report user information — including identity, tax residency, and transaction data — to their domestic tax authority, which then exchanges the data with the user's country of residence. CARF is designed to close the tax gap on offshore crypto holdings and mirrors the Common Reporting Standard (CRS) that already applies to traditional financial accounts. Over 50 jurisdictions have committed to implementing CARF by 2027.
The Crypto-Asset Reporting Framework (CARF) is an OECD standard published in 2022 that establishes rules for automatic exchange of information about crypto-asset transactions between tax authorities globally. It requires Crypto-Asset Service Providers (CASPs) to collect and report user information — including identity, tax residency, and transaction data — to their domestic tax authority, which then exchanges the data with the user's country of residence. CARF is designed to close the tax gap on offshore crypto holdings and mirrors the Common Reporting Standard (CRS) that already applies to traditional financial accounts. Over 50 jurisdictions have committed to implementing CARF by 2027.
What this means for your crypto activity
Automatic reporting
CASPs in participating jurisdictions will report your crypto transactions to your home tax authority automatically.
Offshore visibility
Hiding crypto gains in foreign exchanges will become increasingly difficult under CARF's global reach.
Broad transaction scope
CARF covers a broad range of transactions including spot trades, transfers, and payments.
Self-hosted wallets
Self-hosted wallets are outside CARF's scope — but on-ramp and off-ramp transactions to hosted wallets are captured.
Implementation timeline
The first information exchanges under CARF are expected in 2027–28 for jurisdictions adopting on schedule.
- CASPs in participating jurisdictions will report your crypto transactions to your home tax authority automatically.
- Hiding crypto gains in foreign exchanges will become increasingly difficult under CARF's global reach.
- CARF covers a broad range of transactions including spot trades, transfers, and payments.
- Self-hosted wallets are outside CARF's scope — but on-ramp and off-ramp transactions to hosted wallets are captured.
- The first information exchanges under CARF are expected in 2027–28 for jurisdictions adopting on schedule.
Seeing it in action
Example scenario
David, a UK taxpayer, holds a large crypto position on a Singapore exchange. Under CARF implementation, the Singapore exchange reports David's transaction data to the Inland Revenue Authority of Singapore (IRAS), which automatically shares it with HMRC. HMRC cross-references the data against David's Self Assessment return. If he has not declared his Singapore crypto gains, HMRC is now aware of the discrepancy.
How this works across jurisdictions
- Australia
ATO committed to CARF by 2026–27; aligns with existing DCE reporting obligations.
- Canada
Finance Canada committed to CARF implementation.
- Germany
Part of EU DAC8 implementation which mirrors CARF.
- India
India committed to CARF; aligns with FIU-IND VDASP reporting framework.
- Japan
FSA committed to CARF implementation.
- Singapore
MAS committed to CARF by 2027.
- United Kingdom
HMRC committed to CARF implementation; first exchanges expected by 2027.
- United States
US has proposed CARF implementation; Form 1099-DA already moving in the same direction for domestic reporting.
Take Control of Your Crypto Finances
From crypto taxes to accounting, KoinX helps you manage, track, and stay compliant and to end.
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