How much was counted
Chainalysis put potentially taxable activity for 2025 at at least $457 billion across six major networks: realised gains, income from mining, staking and lending, and payments made in crypto. The US accounts for $112.6 billion, the European Union for $125.1 billion.
How much tax authorities see
The OECD rules cover 14%. The other 86% is trades on decentralised venues, transfers between people, and income paid out onchain.
Why even that is a floor
The estimate excludes whatever happens inside centralised exchanges: none of it shows up on a blockchain.
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