OECD Crypto-Asset Reporting Framework (CARF)

The OECD Crypto-Asset Reporting Framework (CARF) is a global tax-transparency standard developed with G20 countries for automatic exchange of tax information on crypto-asset transactions. The final CARF package was published on June 8, 2023 as part of the OECD’s International Standards for Automatic Exchange of Information in Tax Matters, alongside 2023 updates to the Common Reporting Standard (CRS). The framework is not a standalone domestic statute; it is intended to be implemented through jurisdiction-level legal rules, competent-authority exchange agreements, and technical reporting systems.

Status of the OECD Crypto-Asset Reporting Framework

As of June 6, 2026, CARF is a final OECD/G20 standard and implementation is being phased in by jurisdictions. OECD materials describe the CARF as a dedicated global tax transparency framework for annual automatic exchange of tax information on transactions in Crypto-Assets with taxpayers’ residence jurisdictions. The OECD/Global Forum implementation list, last updated February 19, 2026, identifies jurisdictions undertaking first exchanges by 2027, 2028, or 2029. A separate CARF MCAA signatory list was marked status as of March 3, 2026.

Key provisions in CARF

CARF is structured around three operating components. First, it contains rules and commentary that jurisdictions can transpose into domestic law. Second, it includes a CARF Multilateral Competent Authority Agreement, or bilateral alternatives, to support automatic exchange between tax authorities. Third, it provides for an XML schema used by competent authorities and, where domestic law permits, by reporting service providers.

The rules focus on Reporting Crypto-Asset Service Providers with relevant connections to an implementing jurisdiction. The official rules cover providers that are tax-resident, incorporated or organized, managed from, or have a regular place of business in a jurisdiction, as well as relevant transactions conducted through a branch. The OECD definition of a Reporting Crypto-Asset Service Provider covers individuals or entities that, as a business, effectuate exchange transactions for or on behalf of customers, including as counterparty, intermediary, or operator of a trading platform.

CARF defines a crypto-asset broadly as a digital representation of value relying on a cryptographically secured distributed ledger or similar technology. Relevant Crypto-Assets exclude central bank digital currencies, specified electronic money products, and assets that the reporting provider has adequately determined cannot be used for payment or investment purposes.

Reporting, due diligence, and data exchange

For reportable users, the standard contemplates reporting identity and tax-residence information, including name, address, jurisdiction of residence, tax identification number where required, and date and place of birth for individuals. It also requires provider-identifying information and aggregate transaction information by type of Relevant Crypto-Asset, covering fiat acquisitions and disposals, crypto-to-crypto acquisitions and disposals, reportable retail payment transactions, transfers, and certain transfers to external wallet addresses.

Due diligence procedures rely on self-certifications and information obtained through AML/KYC procedures. For entity users, providers must determine tax residence, whether the entity is reportable, and whether it has controlling persons who are reportable persons, subject to the CARF definitions and exclusions.

For cross-border exchange, jurisdictions need both domestic legal rules and an international exchange mechanism. The CARF MCAA commentary states that jurisdictions must have a legal framework for automatic exchange with partner jurisdictions; the MCAA then supplies modalities for yearly automatic exchanges, including confidentiality and data-safeguard representations.

Implementation timeline and jurisdictional impact

G20 leaders welcomed CARF in 2022 and called for implementation packages. After the CARF and amended CRS packages were finalized in June 2023, G20 leaders called for swift implementation and asked the Global Forum to identify a coordinated timeline. The 2026 commitment list identifies 47 jurisdictions undertaking first exchanges by 2027, 28 by 2028, and the United States by 2029; it also lists several relevant jurisdictions that had not yet committed at that update.

For readers, the practical impact depends on domestic implementation in each jurisdiction. CARF provides the standard template, but reporting obligations, enforcement rules, filing dates, and first reportable periods are set by local law and exchange relationships. This profile should therefore be read as a reference to the OECD global standard, not as legal, tax, investment, or compliance advice.