Chainalysis estimates $457B in taxable crypto activity, says CARF misses most

Chainalysis estimates that at least $457 billion of on‑chain crypto activity was potentially taxable worldwide in 2025. The firm’s analysis shows that the OECD’s Crypto‑Asset Reporting Framework (CARF) would capture only a small portion of that activity.

Geographic distribution of taxable activity

The United States accounts for an estimated $112.6 billion of the total, while North America as a region leads with $134.6 billion. The European Union follows with $125.1 billion.

What is included in the estimate

The $457 billion figure comprises realized gains, income from mining, staking and lending, and crypto‑denominated payments across six major blockchains. It excludes trading and other activity conducted on centralized exchanges.

CARF coverage gap

According to Chainalysis, transactions that fall under CARF represent only 14% of the identified taxable on‑chain activity. The remaining 86% consists of activity on decentralized exchanges, peer‑to‑peer transfers, on‑chain income streams and payments that are not captured by the framework.

How CARF works

CARF, introduced by the OECD in 2022, requires covered crypto service providers to collect customer and tax‑residency information and report transaction data to domestic tax authorities, which can then share the data across borders. Data collection under CARF began on 1 January 2026 in 48 jurisdictions, including the United Kingdom and the European Union.

Why much of DeFi is excluded

The framework focuses on intermediaries that facilitate crypto transactions as a business. Decentralized finance platforms often lack a centralized operator or custodial relationship, leaving them outside the reporting perimeter. Regulators may later expand rules to cover such platforms.