Key Takeaways
Tax transparency has become a top priority as global regulators work to keep up with the rapid growth of crypto markets.
The rise of decentralized trading, borderless transactions, and self-custody wallets has made it harder for tax authorities to track income and capital gains.
To address this challenge, they developed a framework that gives governments a clear and consistent way to monitor crypto-asset activity across borders.
On 10 October 2022, the Organisation for Economic Co-operation and Development (OECD) released the final guidance for the Crypto-Asset Reporting Framework (CARF) alongside amendments to the Common Reporting Standard (CRS).
The aim is to provide a framework that gives governments a clear and consistent way to monitor crypto-asset activity across borders.
Since then, close to 70 jurisdictions have committed to implementing CARF, with most preparing for their first information exchanges in 2027 or 2028.
In several countries, users are already highlighting plans to adopt CARF starting in April 2027. India, for example, has committed to global crypto tax transparency, signaling stricter oversight of offshore holdings and aligning its rules with international standards.

As of October 2025, more than 65 jurisdictions, including all G20 members, the U.S., Singapore, the United Arab Emirates (UAE), Canada, Japan, South Africa, and Switzerland, have formally confirmed their participation. Additional jurisdictions are expected to join ahead of the first reporting cycle.
This article explains the CARF, how it applies to users and service providers, which transactions it covers, and what its implementation means for the future of crypto tax compliance worldwide.
The CARF is an international rule for automatically exchanging information on crypto-asset transactions between tax authorities worldwide.
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The goal is to combat tax evasion involving cryptocurrencies and other digital assets by standardizing how information is collected and shared globally.
CARF is built around three core pillars that ensure tax authorities can effectively monitor crypto activity. These elements focus on closing tax gaps, creating a consistent global framework, and encouraging broad international participation.
CARF applies to various crypto-assets and service providers, enabling users to trade, store, or transfer them.
CARF defines crypto-assets broadly as any digital representation of value that uses cryptographic security and distributed ledger technology (DLT) or similar systems for payment or investment. The scope includes: cryptocurrencies, stablecoins, certain tradable non-fungible tokens (NFTs) and Crypto derivatives (tokens or contracts issued as crypto-assets).
Reporting Crypto-Asset Service Providers (RCASPs) are central to CARF’s obligations. These include businesses that facilitate crypto transactions for users, such as:
Additionally, RCASPs must report annually on four main types of transactions:
CARF participation continues to grow as jurisdictions work toward synchronizing their crypto tax reporting obligations. The table below shows which countries and territories are part of the first and second exchange waves and those yet to announce a timeline.
| Implementation group | Target year for first exchange | General information | Jurisdictions |
| First wave | 2027 | Exchange starts 2027, data from 2026 | 🇦🇹 Austria, 🇦🇿 Azerbaijan, 🇧🇪 Belgium, 🇧🇲 Bermuda, 🇧🇷 Brazil, 🇧🇬 Bulgaria, 🇨🇦 Canada, 🇰🇾 Cayman Islands, 🇨🇴 Colombia, 🇭🇷 Croatia, 🇨🇾 Cyprus*, 🇨🇿 Czechia, 🇩🇰 Denmark, 🇪🇪 Estonia, 🇫🇴 Faroe Islands, 🇫🇮 Finland, 🇫🇷 France, 🇩🇪 Germany, 🇬🇮 Gibraltar, 🇬🇷 Greece, 🇬🇬 Guernsey, 🇮🇸 Iceland, 🇮🇩 Indonesia, 🇮🇪 Ireland, 🇮🇲 Isle of Man, 🇮🇱 Israel, 🇮🇹 Italy, 🇯🇵 Japan, 🇯🇪 Jersey, 🇰🇿 Kazakhstan, 🇰🇷 Korea (Republic of), 🇱🇻 Latvia, 🇱🇮 Liechtenstein, 🇱🇹 Lithuania, 🇱🇺 Luxembourg, 🇲🇹 Malta, 🇲🇽 Mexico, 🇳🇱 Netherlands, 🇳🇿 New Zealand, 🇳🇴 Norway, 🇵🇱 Poland, 🇵🇹 Portugal, 🇷🇴 Romania, 🇸🇲 San Marino, 🇸🇰 Slovak Republic, 🇸🇮 Slovenia, 🇿🇦 South Africa, 🇪🇸 Spain, 🇸🇪 Sweden, 🇨🇭 Switzerland, 🇺🇬 Uganda, 🇬🇧 United Kingdom |
| Second wave | 2028 | Exchange starts 2028, data from 2027 | 🇧🇸 Bahamas, 🇧🇧 Barbados, 🇻🇬 British Virgin Islands, 🇨🇷 Costa Rica, 🇭🇰 Hong Kong (China), 🇲🇾 Malaysia, 🇲🇳 Mongolia, 🇳🇬 Nigeria, 🇻🇨 Saint Vincent and the Grenadines, 🇸🇨 Seychelles, 🇸🇬 Singapore, 🇹🇭 Thailand, 🇹🇷 Türkiye, 🇦🇪 United Arab Emirates, 🇺🇸 United States |
| To be confirmed | TBC | Identified but no date announced | 🇦🇷 Argentina, 🇦🇺 Australia, 🇸🇻 El Salvador, 🇮🇳 India, 🇵🇦 Panama, 🇵🇭 Philippines, 🇻🇳 Vietnam |
This global participation shows CARF is becoming a worldwide standard for crypto tax reporting.
On social media, users have shared how their countries are joining the framework, increasing awareness and reinforcing the momentum toward automatic exchange of crypto-asset data and stricter compliance for users and service providers.

There is a clear growing global momentum toward automatic exchange of crypto information, leaving fewer jurisdictions outside such frameworks and increasing compliance pressure on crypto holders worldwide.
As the first automatic exchanges under CARF begin in 2027, tax authorities will turn the influx of data into a powerful enforcement tool. Here’s how:
Under the CARF, crypto holders and service providers must report and undergo scrutiny under unprecedented data-driven oversight
CARF represents a global move toward coordinated crypto oversight. By 2027, tax authorities worldwide will receive standardized data from exchanges, brokers, and wallet providers, closing a major reporting gap.
For service providers, the coming years will be a race to implement infrastructure that meets CARF requirements. Smaller platforms may face pressure to merge or exit, while larger exchanges will expand compliance teams and reporting systems.
Users will need to keep detailed transaction records, reconcile reports with their filings, and prepare for closer audit scrutiny. CARF may challenge privacy-focused users, but it will also legitimize crypto markets, opening the door for greater institutional adoption.
Yes. If a DeFi platform has identifiable control or influence, it must report under CARF. Classed as RCASPs, OTC desks will report trades if they facilitate client transactions. Not directly. But transfers between exchanges and private wallets are reportable. Not easily. Authorities are using blockchain analytics to track privacy coin activity.