Selling process
Proof of Funds Explained for Fast House Sales
Proof of funds is evidence that a buyer genuinely has the money to complete a purchase — typically a recent bank statement, a letter from their bank or solicitor confirming cleared funds, or a mortgage agreement plus deposit evidence. For a fast sale it is essential: it separates a real cash buyer who can complete in days from a "cash buyer" who is actually waiting on their own sale. Always ask for, and verify, proof of funds before accepting an offer.
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- Clearedthe word that matters
- Bank letteror solicitor confirmation
- AMLyour conveyancer verifies it
- Ask firstbefore you accept
What counts as proof of funds
Acceptable proof shows the money is real and available:
- A recent bank or savings statement showing the balance
- A letter from the buyer’s bank confirming cleared funds
- A solicitor’s letter confirming they hold the money in their client account
- For a mortgage buyer: a mortgage agreement in principle (AIP) plus evidence of the deposit
The key word is "cleared": funds tied up in another sale, an unsold property, or a loan still being arranged are not proof a buyer can complete now.
Why it matters most in a fast sale
The whole point of a quick sale is certainty, and that collapses if the buyer cannot actually pay. The most common cause of a "cash sale" falling through is a buyer who described themselves as cash but was really relying on their own sale completing first. Verified proof of funds confirms the buyer can complete on the promised timescale — which is exactly what you are paying for when you accept a below-market price for speed. Without it, you may have given a discount for a certainty that does not exist.
How to verify proof of funds properly
Do not take a screenshot at face value. Verify it:
- Ask for the evidence in writing, dated recently and in the buyer’s name.
- Have your conveyancer confirm it as part of standard anti-money-laundering (AML) checks under the Money Laundering Regulations.
- For a company buyer, check it matches the entity buying the property and that the funds are theirs, not a third party’s.
- Confirm the figure covers the full purchase price, not just a deposit.
A reputable cash-buying company provides this without hesitation; reluctance or excuses are a clear signal to step back.
Proof of funds and AML checks
Conveyancers are legally required to carry out anti-money-laundering due diligence, which includes verifying the source of a buyer’s funds. This protects you, because it means a genuine purchase is checked by a regulated professional. It is also why a real buyer expects to provide proof — it is routine, not intrusive. If a "buyer" resists AML checks or cannot evidence where the money came from, treat that as a serious warning sign.
Where proof of funds fits the bigger picture
Proof of funds is one of several checks that together confirm you are dealing with a genuine, capable buyer. Combine it with confirming the buyer is the actual purchaser (not an intermediary — see sell fast vs cash buyer), checking NAPB and TPO membership, getting the offer in writing, and comparing buyers. Together these make a fast sale as safe as a slow one. For the full safety checklist, read are sell-house-fast companies legitimate?
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Written & reviewed by Lisa Hayes, Founder
Lisa Hayes is the founder of Ready Steady Sell and an independent UK home-selling expert with over a decade helping homeowners weigh cash house buyers, property investors and the wider fast house-sale industry — without pressure or hidden fees. Every guide is reviewed for accuracy under our editorial standards.
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Frequently asked questions
Straight answers, no sales talk
What is proof of funds when selling a house?
Evidence a buyer genuinely has the money to complete — usually a recent bank statement, a bank or solicitor’s letter confirming cleared funds, or a mortgage agreement plus deposit evidence.
Why should I ask for proof of funds?
To confirm a "cash buyer" can actually complete and is not relying on their own sale. It is the simplest protection against a fast sale falling through.
How do I verify proof of funds?
Get it in writing, check it is recent and in the buyer’s name, confirm it covers the full price, and have your conveyancer verify it as part of anti-money-laundering checks.
Is a mortgage agreement proof of funds?
A mortgage agreement in principle plus evidence of the deposit is acceptable for a mortgage buyer, but it is not the same as cleared cash and carries more risk of falling through than a true cash purchase.
Can a buyer refuse to show proof of funds?
They can, but you should not proceed without it. A genuine buyer provides proof readily; reluctance is a strong signal to step back and consider another buyer.
Who checks the buyer’s source of funds?
Your conveyancer, as part of legally required anti-money-laundering due diligence. This professional check is an additional layer of protection for you.