You can't pay a deposit in bitcoin, but you can use crypto profits converted to sterling — if you can evidence where the money came from and your tax is in order. Here's what lenders and solicitors actually require.
Important Risk Warning
This is not financial advice. Cryptocurrency investments are highly volatile. The value of your investment can go down as well as up, and you could lose all the money you invest. Don't invest unless you're prepared to lose all the money you put in.
London — Let's clear up the headline question first: no UK mortgage lender will take bitcoin as your deposit. Crypto isn't legal tender, and the entire house-buying chain — lender, solicitor, estate agent — deals in pounds. What a growing number of lenders will now accept is a deposit funded by crypto profits, converted to sterling, with a paper trail behind it.
That second sentence is where deals live or die. The conversion is easy. The paper trail is the work.
Yes, and people do it every month. The deposit itself arrives at your solicitor as ordinary GBP in a UK bank account. What makes a crypto-funded deposit different is the scrutiny: under UK anti-money-laundering rules, your solicitor and lender must verify the source of your funds, and "I sold some coins" isn't verification.
In practice you'll be asked for the full history — exchange statements showing purchases and sales, wallet transaction records if you self-custodied, and bank statements showing the fiat proceeds landing in your account. Lenders want to see that the money's origin is traceable end to end. Funds that touched mixers, anonymous transfers, or exchanges that can't produce statements are where applications stall.
A practical tip from how these cases actually go: convert early. A deposit that has sat in your bank account for several months, with the crypto history filed and ready, reads very differently to an underwriter than a transfer that arrived from an exchange last Tuesday.
This is the part that catches people. Selling crypto to fund a deposit is a disposal for capital gains tax. With the annual exempt amount at just £3,000, almost any deposit-sized sale produces a taxable gain — and per HMRC's guidance, that gain needs reporting and paying through self-assessment.
It's not just a compliance nicety. Solicitors checking source of funds increasingly want to see that tax on the gains has been declared, and from this year HMRC receives your exchange data directly under the CARF reporting framework. Selling £60,000 of bitcoin for a deposit while staying silent on the tax return was always risky; in 2026 it's practically self-reporting.
So sequence it properly: sell, set aside the CGT, declare it, then buy. The tax bill is part of the deposit maths.
It changes constantly, which is why brokers earn their fee on these cases. Yahoo Finance UK has reported that mainstream banks now look at crypto-derived deposits case by case rather than refusing outright, and a specialist segment of the market actively advertises for this business. The dividing line is rarely the crypto itself — it's documentation quality. Clean exchange records from an FCA-registered platform put you in front of most of the market; fragmented self-custody history with gaps puts you in front of a handful of specialists at worse rates.
What doesn't exist yet in the UK is the true bitcoin-backed mortgage — borrowing against coins you keep, US-style. That product is being talked about, and the FCA's full crypto regime arriving in October 2027 makes the plumbing more plausible, but talk is where it remains. For now, exposure has to be sold, not pledged.
If a crypto-funded purchase is in your next year or two, the preparation looks like this. Keep every exchange statement and export your transaction history now, while your accounts are open and accessible. Sell far enough ahead of the purchase that the funds season in your bank account. Report the gains and keep the self-assessment confirmation with your mortgage paperwork. And use a broker who has placed crypto cases before — this is one corner of the market where the right introduction genuinely changes the outcome.
None of it is exotic. It's the same boring evidence-gathering that any large deposit requires, with one extra layer because the money started life on a blockchain. The buyers who fail aren't the ones with crypto wealth; they're the ones who can't show where it came from.
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