Proof of Cash

Proof of cash is a reconciliation that compares a business's financial records with cash moving into and out of its bank accounts.

Why proof of cash matters to an owner considering a sale

Reported sales and profit can look orderly while the underlying cash activity tells a less complete story. A buyer may want to know whether customer receipts support recorded revenue and whether payments leaving the bank support recorded expenses. The exercise helps identify questions about timing, classification, missing transactions, and the scope of the records being reviewed. It does not certify that every accounting judgment is correct.

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A guest on The SMB Investor podcast warns that testing only money coming into the business leaves expense activity untested. The same guest suggests asking a quality of earnings provider which cash movements were reconciled and which were not. A report can sound comprehensive even when one side of cash activity was outside its scope.

How the reconciliation is used

On the receipts side, the reviewer compares bank deposits with revenue and amounts customers still owe. On the payments side, the reviewer compares money leaving the bank with expenses and other recorded outflows. Items such as transfers, loan proceeds, owner contributions, taxes, and payments that cross reporting periods need separate explanations. The objective is to understand differences, not to force every bank line into a sales or expense category.

Illustrative example: A bank statement shows 100 incoming entries and 80 outgoing entries for a period. A reviewer traces the incoming entries to customer receipts or other sources and the outgoing entries to expenses, debt payments, transfers, or other uses. These round counts are illustrative; the counts themselves say nothing about profitability. If the reviewer traces only the 100 incoming entries, the 80 outgoing entries remain an unanswered part of the cash story.

Common mistakes

The first mistake is calling a receipts check a full proof of cash. It can support the revenue side while leaving expenses untested. The second is assuming that all bank outflows are operating expenses. Debt principal, transfers, and owner distributions can move cash without appearing as expenses in the same way. A reviewer needs to explain each category and the period it belongs to.

Owners can also mistake a clean reconciliation for a promise about future earnings. Cash support is evidence about recorded activity. It does not show that customer demand will persist, that costs will stay the same, or that a buyer will accept every adjustment in a quality of earnings review.

Related terms

Revenue verification focuses on support for reported sales. Quality of earnings asks broader questions about the earnings shown by the records. The financial records buyer guide connects these checks to the wider sale discussion.

Sources

The SMB Investor podcast.