Proof of funds (POF) is documentation showing that a person or entity has enough liquid money available to complete a transaction. Sellers ask buyers for it, lenders ask borrowers for it, and deal teams ask counterparties for it — because a signed offer means nothing if the money behind it doesn't exist. This guide covers what counts as proof of funds, what a POF letter looks like (with a sample), how it works in real estate, acquisitions, and investments, and — the part most guides skip — how to verify that a proof of funds document is actually real.

What is proof of funds?

Proof of funds is evidence of available, liquid money — cash or assets that can be spent now. That's what separates it from related documents:

Proof of funds vs. pre-approval: a mortgage pre-approval says a lender might lend you money; proof of funds says you have money. Cash offers rely on POF, financed offers usually need both.
Proof of funds vs. proof of income: POF shows a balance (what you hold); proof of income shows a flow (what you earn). Landlords care about income; sellers care about funds; lenders and diligence teams usually care about both.

What counts as proof of funds

Accepted almost everywhere:

Bank statement — the most common form. Recent (usually within 30 days), showing account holder name and available balance.
Proof of funds letter from a bank — a short signed letter from the institution confirming the account holder and available balance.
Money market or savings account statement — liquid accounts count; retirement accounts and home equity generally don't.
Brokerage statement — sometimes accepted, often discounted, since securities must be sold first.
Escrow account confirmation — a letter from an escrow or title company confirming deposited funds.
Bank-verified funds report — the newer option: the account holder authorizes a read-only bank connection, and the requesting party receives a report of actual balances and deposit history pulled directly from the bank.

What doesn't count: balance screenshots, cryptocurrency wallet screenshots, letters from individuals, and statements for accounts in someone else's name without documentation connecting them to the deal.

Sample proof of funds letter

A bank-issued POF letter is short. Here's the standard structure:

[Bank letterhead]

[Date]

To Whom It May Concern:

This letter confirms that [Account Holder Name] maintains an account with [Bank Name] with an available balance of [$Amount] as of [Date].

Should you require further verification, please contact us at [Phone Number].

Sincerely,

[Bank Officer Name and Title]

Request one at a branch or through your bank's customer service; most banks issue them within a day or two. Note what the letter doesn't say: where the money came from, how long it's been there, or whether it's still there a week later. That's why sophisticated counterparties increasingly ask for more than a letter.

Proof of funds for real estate

The most common POF scenario. Listing agents ask cash buyers for proof of funds before accepting an offer — often before showing the property on higher-end listings — because a cash offer without funds behind it takes the home off the market for nothing. Standard practice:

Sellers ask for a bank statement or POF letter dated within 30 days
The amount should cover purchase price plus closing costs
Financed buyers show POF for the down payment plus a pre-approval for the loan
Wholesalers and flippers are the classic source of questionable POF letters — some "transactional funding" companies issue letters to anyone who fills out a form, which is exactly why verification matters (more below)

Proof of funds for business acquisitions

When buying a business, the seller's broker will ask for proof of funds before sharing detailed financials or accepting a letter of intent. The dynamics differ from real estate:

Larger amounts, longer timelines — funds must stay demonstrably available through a 60-90+ day diligence period, not just at offer time.
Layered sources — acquisitions often combine personal liquidity, investor commitments, and SBA or seller financing. Each layer needs its own documentation: bank statements for personal funds, commitment letters for investors, a lender pre-qualification for the financed portion.
It cuts both ways. Buyers should diligence sellers too — and sellers' brokers increasingly verify the person behind an offer, not just a letter. A bank-verified report showing actual balances and months of deposit history answers both "do they have it" and "has it actually been there."

Proof of funds for investment

Fund managers, family offices, and deal sponsors ask prospective investors for proof of funds (and sometimes source of funds) before accepting a commitment:

Capital commitments — verifying an LP can actually meet a capital call before allocating them into a deal.
Accredited investor context — accreditation is a separate legal test, but the practical question "does this person have the liquidity they claim" is answered with POF documentation.
Source of funds — for compliance (AML/KYC), where the money came from matters as much as the balance. A static letter shows a number; deposit history shows the pattern behind it.

How to verify a proof of funds letter is real

Here's the problem with everything above: POF documents are easy to fake. Statement PDFs can be edited with a $20 tool, letterhead can be copied, and fake POF letter templates circulate freely. If you're the one relying on the document, verification is not optional:

Call the bank — using a number you look up yourself, never the one printed on the letter. A faked letter comes with a faked phone number attached.
Check the letter's details — account holder name matching the buyer exactly, a recent date, a specific available balance, and a real officer name.
Scrutinize the document for signs of editing — mismatched fonts, broken alignment, balances that don't sum. Our free fake bank statement detector automates this check for statements.
Skip the document entirely — request a bank-verified report instead. The account holder authorizes a secure, read-only connection through Plaid, and you receive balances and deposit history straight from the bank. Nothing to forge, nothing to call and confirm, done in minutes. That's what Income Checker provides for deal teams, lenders, and anyone verifying a counterparty at $14.99 per report.

Frequently asked questions

How recent does proof of funds need to be?

Most sellers and brokers want documentation dated within 30 days, and it's common to re-verify before closing. Bank-verified reports are current as of the moment the account is connected.

Can I use multiple accounts as proof of funds?

Yes — combine statements or letters from several accounts as long as together they cover the required amount and every account is in the buyer's name (or documented as available to the deal, like an LLC account with the buyer as signer).

Does a proof of funds request affect my credit?

No. POF is documentation of balances, not a credit event. Bank-verified reports are also credit-neutral — the connection is read-only and involves no credit inquiry.

Is a pre-approval letter proof of funds?

No. A pre-approval is a lender's conditional willingness to lend; it can evaporate at underwriting. Sellers on cash deals want proof the money exists today. On financed deals, bring both: POF for the down payment, pre-approval for the rest.

Verify a counterparty's funds and income | Try the free bank statement checker | View an example report