Does MetaMask Report to HMRC?

MetaMask is a popular wallet for Ethereum and EVM-compatible tokens. MetaMask allows users to hold assets, connect to dApps, and trade directly on the blockchain.

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Because it’s decentralized, MetaMask does not hold your funds or require Know Your Customer (KYC) information. However, certain partner services may require KYC when you purchase crypto on the platform.

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Even though MetaMask does not issue tax documents, it’s likely that HMRC can trace your transactions when you transfer to/from a centralized exchange.

No. MetaMask does not report to HMRC or provide tax forms.

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That being said, the UK is preparing to implement the OECD’s Cryptoasset Reporting Framework (CARF) in 2026. Under CARF, UK-based crypto exchanges and custodial wallet providers will be required to collect detailed customer information and transaction records, and then share that data with HMRC.

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CARF will not apply directly to MetaMask, since it’s a decentralized, non-custodial wallet. However, these rules do impact MetaMask users.

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Whenever you transfer crypto between MetaMask and a centralized exchange, those transfers can be connected to your identity and matched against your tax return.

Yes. Crypto activity on MetaMask and other wallets is subject to tax.

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• Capital gains: Selling, swapping, or spending crypto is a disposal subject to capital gains tax.

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• ‍Income: Staking, mining, and airdrops are typically taxed as income at their fair market value when received. 

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Remember, moving crypto between your own wallets (for example, from an exchange to MetaMask) is not considered a taxable event.

Not directly. MetaMask does not ask for personal details when creating a wallet.

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• Non-custodial by default. No ID is required to start using MetaMask.

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• Third-party providers. If you buy cryptocurrency with a card or bank via a MetaMask partner (e.g., MoonPay), you may be required to verify your identity.

Yes. MetaMask is legal to use in the United Kingdom. You are required to stay compliant with tax reporting requirements, especially as enforcement steps up in 2026. 

You cannot legally evade taxes in the UK. However, there are steps you can take to legally reduce your tax liability: 

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• Tax-loss harvesting: By selling crypto at a loss, you can offset capital gains and lower your bill.

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• Using cryptocurrency tax software: Crypto tax software like CoinLedger can track your MetaMask transactions and simplify reporting.