How to Prove Crypto Funds for a UK Mortgage (2026)
Step-by-step guide for UK homebuyers: what solicitors need under MLR 2017, proof of funds vs source of funds, and how to present self-custody Bitcoin or Ethereum.
What your solicitor is actually checking
Under the Money Laundering Regulations 2017, your conveyancer must verify both proof of funds (you have enough money) and source of funds (where it came from). Crypto held in self-custody does not appear on bank statements — so you need a separate, verifiable record of wallet activity.
Screenshots of MetaMask or a block explorer are routinely rejected because they lack structure, dating, and fiat equivalents. A bank-style PDF with opening balance, closing balance, and chronological transactions is far easier for a compliance team to review.
Self-custody vs exchange holdings
If your crypto is on Coinbase, Kraken, or another exchange, start with the exchange's own statement export. CryptoBankStatement is built for self-custody wallets (Ledger, Trezor, MetaMask) where no institution issues a statement.
If you moved funds from an exchange to a hardware wallet before purchase, generate a statement for the wallet address and keep the exchange withdrawal records as the bridge narrative.
Presenting BTC vs ETH vs stablecoins
Bitcoin uses a UTXO model that is hard to read in raw form — a formatted statement with running balances matters. Ethereum statements should separate ETH from USDC/USDT if you hold multiple assets; generate one statement per asset for clarity.
Stablecoin income is easier for underwriters to understand because values are pegged to fiat. Volatile assets may require a longer history to demonstrate stability.
Related pages
Frequently asked questions
- Do UK lenders accept crypto as proof of funds?
- Lenders do not hold crypto directly, but your solicitor must verify source of funds under MLR 2017. A structured wallet statement showing balances and transaction history is increasingly accepted as the on-chain leg of that check — alongside bank statements showing any fiat conversion.
- What documents should I prepare before applying?
- Prepare: (1) a CryptoBankStatement PDF for each wallet address used, (2) bank statements showing fiat deposits if you sold crypto, (3) exchange records for any CEX activity, and (4) a short narrative explaining how you acquired the crypto.
- How far back should my crypto statement cover?
- Most conveyancers want to see at least 6–12 months of history for source-of-funds checks. If you received a large inbound transfer shortly before purchase, extend the period to show prior activity.