A significant gap exists in global cryptocurrency tax collection mechanisms, with an analysis showing that only 14% of taxable onchain crypto asset activity will fall within the new international tax reporting framework set to launch in 2027.
According to blockchain intelligence company Chainalysis, global taxable onchain crypto activity exceeded $457 billion last year. Europe accounted for $125.1 billion, the United States $112.6 billion, and China $21 billion, though Chinese crypto trading faces regulatory restrictions making activity estimates difficult.
Limited Scope of New Framework
The Crypto-Asset Reporting Framework (CARF), released by the Organization for Economic Cooperation and Development, applies only to centralized exchanges, brokers, retailers, and some wallet providers. At least 46 countries have committed to implementing it in 2027, with another 29 expected to join in 2028. The United States plans to implement the framework in 2029.
The framework will not capture approximately 86% of potentially taxable activity, including decentralized exchange transactions, peer-to-peer transfers, self-custody activity, mining rewards, staking yields, lending income, and cryptocurrency-denominated payments.
Additional Obstacles to Tax Collection
Even within CARF's scope, significant challenges remain. Exchanges often lack information about cryptocurrency assets acquired elsewhere, complicating accurate gain and loss calculations. Additionally, the framework may reveal what a person sold their crypto assets for but not what they originally paid, making profit calculations difficult. Not all countries will participate in CARF, further limiting its reach.
The European Union has pursued a parallel approach through the DAC8 directive, which came into force in January. Under this directive, crypto exchanges are collecting customer data for sharing with national tax authorities beginning in 2027.
Privacy and Security Concerns
The expansion of crypto tax reporting has raised privacy and security concerns. Bull Bitcoin, a bitcoin-only exchange, initiated legal proceedings in France challenging the DAC8 directive's implementation, arguing the framework creates a centralized database linking personal identities, home addresses, and crypto activity.
France has experienced a notable increase in physical attacks on cryptocurrency owners. In the first eight months of this year, there were 36 recorded incidents, representing a 64% increase compared to the entire previous year, with some attacks attributed to information from data breaches involving tax authority records.


