Chainalysis: $457B in Crypto Activity Potentially Taxable, but Only 14% Covered by CARF

Blockchain analytics firm Chainalysis estimates that global potentially taxable on-chain cryptocurrency activity in 2025 will reach at least $457 billion. However, only about 14% of that activity would fall under the OECD’s Crypto-Asset Reporting Framework (CARF), according to a report cited by Cointelegraph.

The remaining 86% of taxable activity occurs outside the framework’s reach, including transactions on decentralized exchanges, peer-to-peer transfers, various forms of on-chain income, and cryptocurrency payments. This significant gap highlights the challenges tax authorities face in tracking crypto-related income across borders.

What is the Crypto-Asset Reporting Framework?

The CARF, developed by the Organisation for Economic Co-operation and Development (OECD), is a global standard for the automatic exchange of information between tax authorities on crypto-asset transactions. It aims to close the information gap created by the rise of digital assets, ensuring that tax administrations have visibility into crypto holdings and transactions conducted by their residents.

Adopted by over 50 jurisdictions, the framework is set to take effect in phases starting in 2026. It requires crypto-asset service providers, such as exchanges and brokers, to report transactions and customer information to tax authorities, which then automatically share that data with other participating countries.

However, as Chainalysis’s data suggests, the framework’s coverage is limited. Decentralized platforms, which operate without a central intermediary, and direct peer-to-peer transactions fall outside CARF’s reporting requirements. This creates a substantial blind spot for tax enforcement.

The $457 Billion Taxable Activity Breakdown

Chainalysis’s estimate of $457 billion represents a conservative floor for potentially taxable on-chain activity. The figure includes realized gains from trading, income from staking and airdrops, and payments made using cryptocurrencies. The actual number could be higher, as the analysis only captures on-chain activity and excludes off-chain transactions that may also be taxable.

The breakdown reveals that a large portion of taxable activity occurs in areas that are difficult for tax authorities to monitor:

• Decentralized exchanges (DEXs): These platforms facilitate trading without a central intermediary, making it harder to attribute transactions to specific individuals.
• Peer-to-peer transfers: Direct transfers between individuals, often conducted through non-custodial wallets, are not reported to any central authority.
• On-chain income: This includes earnings from staking, yield farming, and other decentralized finance (DeFi) activities, which are often not reported.
• Cryptocurrency payments: Payments made directly from one party to another, without an intermediary, are also outside CARF’s scope.

This gap underscores the complexity of taxing crypto assets, as many transactions occur outside the traditional financial system that tax authorities are accustomed to monitoring.

Why This Matters for Crypto Users and Regulators

The findings highlight a growing tension between the decentralized nature of cryptocurrency and the regulatory push for transparency. While CARF represents a significant step forward in international tax cooperation, its limitations mean that many crypto users may still be able to avoid detection.

For crypto users, this means that even if they transact on decentralized platforms or directly with peers, they are still legally obligated to report their taxable income in most jurisdictions. The lack of automatic reporting does not eliminate the tax liability; it simply shifts the burden onto the individual to self-report accurately.

For regulators, the data underscores the need for new tools and approaches to track crypto activity. Chainalysis and similar firms are developing advanced analytics to help authorities identify taxable transactions even without centralized reporting. However, the effectiveness of these tools depends on the cooperation of exchanges and the adoption of robust regulatory frameworks.

Conclusion

Chainalysis’s estimate of $457 billion in potentially taxable crypto activity, with only 14% covered by CARF, illustrates the significant challenges facing global tax enforcement. As the CARF framework begins to take effect in 2026, it will provide much-needed transparency for a portion of the market, but the majority of on-chain activity will remain outside its reach. Both regulators and crypto users must navigate this evolving landscape carefully, as the rules around crypto taxation continue to develop.

FAQs

Q1: What is the Crypto-Asset Reporting Framework (CARF)?
The CARF is a global standard developed by the OECD for the automatic exchange of tax information on crypto-asset transactions. It requires crypto-asset service providers to report transaction details and customer information to tax authorities, which then share that data with other participating jurisdictions.

Q2: Why does CARF only cover 14% of potentially taxable crypto activity?
CARF applies to centralized crypto-asset service providers like exchanges and brokers. However, a large portion of on-chain activity occurs on decentralized exchanges, peer-to-peer transfers, and other non-intermediated transactions, which fall outside the framework’s reporting requirements.

Q3: What does this mean for individual crypto investors?
Even if their transactions are not automatically reported under CARF, individual investors are still legally required to report their taxable crypto income to their local tax authorities. The lack of automatic reporting does not eliminate the obligation to pay taxes on gains and income.