Process

Proof of funds when buying a house

Sooner or later every buyer is asked to prove where their money is coming from. It can feel intrusive, but proof of funds is a legal requirement designed to stop money laundering, and getting your paperwork ready early keeps your purchase moving. This guide explains what counts as proof, who asks for it and when, how to evidence a gifted deposit, and how to avoid common delays.

Last reviewed 26 June 2026

In short

Proof of funds is evidence that shows you genuinely have the money to buy a property and where it came from. Estate agents and conveyancers are legally required under anti-money-laundering rules to verify both that the funds exist and that their source is legitimate. Acceptable evidence usually includes recent bank statements showing the deposit, a mortgage agreement in principle for the borrowed portion, and documentation for any savings, investments, property sale proceeds, inheritance or gifted deposit. You will normally be asked early, often when making or having an offer accepted, and again by your solicitor. Having clear, traceable records ready, ideally showing how larger sums built up, prevents delays.

Why you are asked for proof of funds

Property is a common target for money laundering because large sums can be moved through a single transaction. To counter this, the law places duties on estate agents and conveyancers to carry out customer due diligence, which includes verifying your identity and the source of your money.

Proof of funds actually covers two related things. 'Proof of funds' shows you have the money available now. 'Source of funds' shows where it came from and that it was obtained legitimately. For larger or unusual sums, you may be asked to evidence both.

It is not personal and it is not optional. Agents and solicitors who fail to carry out these checks face serious penalties, so they will not progress your purchase until they are satisfied.

What counts as proof of funds

Common sources and the evidence usually accepted for each.

Source of money	Typical evidence
Savings	Bank or savings statements, often 3 to 6 months
Mortgage	Mortgage agreement in principle or offer
Sale of a property	Completion statement from your solicitor
Gifted deposit	Donor's bank statements plus a gift letter
Inheritance	Solicitor or executor letter and bank credit
Investments	Statements showing sale and transfer of proceeds
Pension lump sum	Provider statement showing the payment

For larger sums, expect to show how the money accumulated, not just a single balance.

Who asks and when

You can expect proof-of-funds requests at several points:

The estate agent, often before or just after your offer is accepted.
Your mortgage lender, as part of the application and deposit checks.
Your conveyancer or solicitor, before exchange of contracts.
Sometimes again close to completion if the source changes.

How to get your proof of funds ready

A little preparation avoids last-minute hold-ups:

1. Gather statements early
Download three to six months of statements for every account holding the deposit.
2. Consolidate scattered savings
If money is spread across accounts, move it together early so the trail is clear and traceable.
3. Document any gift
Get a signed gift letter and the donor's statements showing where the gift came from.
4. Keep evidence of windfalls
Hold onto paperwork for inheritance, bonuses, investment sales or pension lump sums.
5. Avoid unexplained cash
Large unexplained deposits, especially cash, are the biggest cause of delay; pay them in with a clear trail.

Cash and last-minute transfers cause delays

Unexplained cash deposits, sudden large transfers, or money arriving from accounts you cannot evidence will stall your purchase while checks are carried out. If a relative is gifting money, sort the gift letter and their statements well before exchange.

Gifted deposits need the donor's evidence too

If part of your deposit is a gift, your solicitor will need proof of the donor's identity and the source of their money, plus a letter confirming it is a gift and not a loan. Lenders also want to know it is non-repayable, so arrange this paperwork early.

Common questions

What is proof of funds when buying a house?

It is evidence showing you have the money to buy a property and where it came from. Estate agents and conveyancers are legally required to verify both that the funds exist and that their source is legitimate, under anti-money-laundering rules.

What documents count as proof of funds?

Common evidence includes recent bank statements for your deposit, a mortgage agreement in principle for the borrowed portion, completion statements from a property sale, a gift letter and donor statements for gifted deposits, and paperwork for inheritance or investments.

Why do estate agents ask for proof of funds?

By law, estate agents must carry out anti-money-laundering checks, which include confirming buyers can fund the purchase and that the money is legitimate. They will often ask before or shortly after your offer is accepted.

How many months of bank statements do I need?

Typically three to six months, so the source and build-up of your deposit can be seen. For larger sums or recent windfalls, you may be asked for more, along with documents explaining where the money came from.

How do I prove a gifted deposit?

You will usually need a signed gift letter confirming the money is a non-repayable gift, plus the donor's identity documents and bank statements showing the source of their funds. Arrange this early, as it is a frequent cause of delay.

Can I use cash as proof of funds?

Physical cash is difficult to evidence and raises money-laundering concerns. If you have cash savings, pay them into a bank account with a clear record well in advance so there is a traceable trail rather than an unexplained lump sum.

Do cash buyers need to prove funds?

Yes, often more so. Without a mortgage lender doing some checks, the full responsibility falls on the agent and conveyancer to verify a cash buyer's money, so expect detailed requests for evidence of the source.

How long does proof of funds take to verify?

If your paperwork is clear and traceable, verification can be quick. Delays usually come from scattered accounts, unexplained deposits or missing gift documentation, so preparing everything early keeps your purchase on track.

Sources

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