What's the Difference Between an Invoice and a Receipt?

An invoice is a request for payment you send before the customer pays, and a receipt is proof of payment you send after they pay. Put simply, an invoice asks for money and a receipt confirms money was received.

Both documents describe the same transaction, but they sit on opposite sides of payment. Using them interchangeably causes record-keeping and tax headaches, so it helps to know exactly what each one does.

What an invoice is:

An invoice is issued by the seller to tell the buyer what they owe and when it is due. It is a formal request for payment, recorded as accounts receivable for you and accounts payable for your customer.

An invoice typically includes:

What a receipt is:

A receipt is issued after payment lands and confirms the transaction is complete. It is the customer's proof of payment, useful for warranties, returns, expense claims, and reconciling accounts.

A receipt typically includes:

When each is used:

Why both matter for records and tax:

Invoices document money owed and revenue earned, while receipts prove money changed hands. Together they create a clean audit trail, support accurate bookkeeping, and back up deductions or income at tax time. An invoice alone is not valid proof of payment, and a receipt alone does not show the original terms of what was agreed.

Paid invoice vs receipt:

Marking an invoice as "Paid" is not the same as issuing a receipt. A paid invoice shows the amount has been settled on the original request, while a receipt is a standalone document whose main purpose is to confirm payment. Many businesses issue both: the paid invoice for the agreement, the receipt for the confirmation.

Australia note (GST):

In Australia, a tax invoice is a specific document GST-registered businesses must provide on request, and it is required to claim GST credits on purchases over 82.50 dollars (including GST). A receipt only doubles as a tax invoice if it carries all the required details, including the seller's ABN, the words "tax invoice," and the GST amount.

Quick comparison:

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