Automatic Exchange of Information (AEOI)
Web3 / regulatory frameworks
Automatic Exchange of Information is a standardized international system where tax authorities automatically share financial and transaction data about each other's residents without requiring formal requests. Developed by the OECD as the Common Reporting Standard (CRS), AEOI enables countries to collaborate on tax compliance and prevent offshore tax evasion. Financial institutions in participating countries must identify foreign account holders, report their financial information annually, and transmit this data to their domestic tax authority, which then exchanges it with the relevant foreign jurisdictions. The system has expanded from traditional banking to include crypto-asset service providers, making digital asset holdings increasingly transparent to tax authorities worldwide. Example: When a US citizen holds Bitcoin on a Swiss crypto exchange, that exchange (as an AEOI-compliant institution) reports the account to Swiss tax authorities, which automatically share this information with the IRS, ensuring the US citizen's crypto holdings are visible for tax purposes regardless of jurisdiction. Why it matters for crypto regulation: AEOI integration into crypto creates a global surveillance system for digital assets, making tax avoidance increasingly difficult. Crypto users cannot rely on jurisdictional arbitrage or banking secrecy; assets are reported automatically across borders.
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