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How Do I Know If a Cash House Buyer Is Legitimate? The 60-Second Checklist
Four checks, done in about a minute combined, tell you whether a cash house buyer is safe to deal with: NAPB membership, ombudsman membership (TPO or PRS), a genuine trading history on Companies House, and written proof of funds. All four are free and public. A buyer who hesitates on any one of them is telling you something before they have said a word.
25th September, 2026
Why sixty seconds is genuinely enough
Cash house buying has a low barrier to entry, which is exactly why the checks that matter are public, free, and fast. You do not need a solicitor or a background in property to run them, and you should not need longer than a minute to get through all four. The point is not to catch every possible bad actor with certainty, it is to make the obvious red flags visible before you have committed to anything, in the same way you would glance at a reviews page before booking a tradesperson.
The four checks, in order
Check one: search the buyer’s name on the NAPB’s public member list. Membership is voluntary and requires the buyer to have signed up to The Property Ombudsman’s Code of Practice, so it filters out anyone who has not agreed to a basic standard of conduct.
Check two: confirm their ombudsman membership directly, on the TPO or PRS website, rather than taking the buyer’s word for it. Membership can lapse. Confirming it independently takes seconds.
Check three: look the company up on Companies House. A short trading history, a recently changed name, or a residential registered address are not proof of a problem on their own, but they are worth asking the buyer to explain plainly.
Check four: ask for written proof of funds, a bank statement or solicitor’s confirmation showing the money for your specific purchase exists now. This is the one check that actually confirms the buyer can complete, not just that they are registered somewhere.
Rob’s advise:
“Most sellers assume checking a buyer out means digging through paperwork for an afternoon. It does not. I have watched people run all four of these checks on their phone while the kettle boiled. What I would say to anyone doing this for the first time is: do not stop at NAPB membership and feel reassured. NAPB tells you the buyer has agreed to a standard, it does not tell you they can actually pay you. Proof of funds is the check people skip because it feels like the awkward one to ask for, and it is the one that matters most.”
Already run the checks? See what we would offer.
We are NAPB and TPO registered, and we will send written proof of funds before you take your property off the market for us.
Get Your Cash OfferWhat a failed check actually tells you
None of these four checks proves fraud on its own. What they do is shift the burden of explanation onto the buyer. A company incorporated eight weeks ago is not automatically a scam, some genuine buyers are new entrants, but a genuine one will explain that history without being pushed and will still pass the proof of funds check regardless of how long they have traded. It is the combination of a failed check and evasiveness that should end the conversation, not either one alone.
The fifth thing worth asking, even though it is not a public record
None of the four checks above confirm whether a buyer’s offer can change after you have accepted it. Ask directly, in writing: can your offer change, and under what circumstances. Our offer is made in writing and does not change unless a significant undisclosed defect is identified by survey. A buyer who answers that question as plainly as that is worth far more trust than one who gives a vague reassurance and moves the conversation along.
Frequently Asked Questions
What is the fastest way to check if a cash house buyer is legitimate?
Run four checks: search the NAPB’s public member list, confirm their ombudsman membership (TPO or PRS) is current, look up their trading history on Companies House, and ask for written proof of funds. All four are free, public, and take about a minute combined. A genuine buyer will not hesitate on any of them.
Is NAPB membership alone enough to prove a cash buyer is legitimate?
It is a strong signal but not the whole picture. NAPB membership requires the buyer to also hold ombudsman cover, which matters, but it does not confirm the buyer can actually fund your purchase. Pair NAPB membership with proof of funds and a Companies House check before you treat an offer as safe to act on.
What should I look for when I check a cash buyer on Companies House?
Look at how long the company has been trading, whether the listed directors have a history of dissolved or renamed companies, and whether the registered address is a genuine trading address rather than a residential one. A short or repeatedly renamed history is not automatically a scam, but it is worth asking the buyer to explain directly.
What counts as valid proof of funds from a cash buyer?
Written confirmation, typically a recent bank statement or a solicitor’s letter, showing the money to complete your specific purchase genuinely exists and is available now. A verbal assurance is not proof of funds. Ask for it before you take your property off the market for any buyer.
What should I do if a cash buyer fails one of these checks?
Ask them directly, in writing, to explain the gap before you go any further. A genuine buyer will usually have a straightforward answer. If they avoid the question, pressure you to move on regardless, or cannot provide proof of funds when asked twice, treat that as a reason to walk away, not a detail to overlook.
Does passing all four checks guarantee a cash buyer will not gazunder me?
No single check guarantees that, but it lowers the risk considerably, and you can close the remaining gap yourself: ask the buyer, in writing, whether and under what circumstances their offer can change before you agree anything. A buyer who has passed the other four checks and answers this one directly is about as safe a bet as this sector allows.
This guide is part of SmoothSale’s full legitimacy check. Read the others:
- Is a Cash House Buyer Genuine? The five-minute check, https://smoothsale.co.uk/is-a-cash-house-buyer-genuine/
- How to check if a cash house buyer is genuine, https://smoothsale.co.uk/news/how-to-check-if-a-cash-house-buyer-is-genuine/
- What is gazundering and how do you avoid it?, https://smoothsale.co.uk/news/what-is-gazundering/
- What is the NAPB and why does it matter when selling your home?, https://smoothsale.co.uk/news/what-is-the-napb-and-why-does-it-matter-when-selling-your-home/
- What is The Property Ombudsman and what protection does it give sellers?, https://smoothsale.co.uk/news/what-is-the-property-ombudsman/
- Do I need a solicitor to sell to a cash buyer?, https://smoothsale.co.uk/news/do-i-need-a-solicitor-to-sell-to-a-cash-buyer/
- What is proof of funds and why should you always ask for it?, https://smoothsale.co.uk/news/what-is-proof-of-funds/
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