Invoice or Receipt? Understanding When to Issue Each

Invoices and receipts get used interchangeably in casual conversation, but they're not the same

document, and issuing the wrong one at the wrong point in a transaction can genuinely confuse a client about whether they still owe you money. Here's how to keep the two straight.

What each document actually does

An invoice is a request for payment. You send it before money changes hands, and it tells the buyer what they owe, for what, and by when.

A receipt is proof that payment has already happened. You send it after money changes hands, and it confirms the transaction is settled.

That single distinction, before payment versus after payment, is really the whole difference. Everything else follows from it.

When to issue an invoice

Issue an invoice whenever you're asking to be paid for work that hasn't been paid for yet. This covers most B2B billing, freelance and contract work, anything sold on credit terms, and any arrangement where the client pays after receiving goods or services rather than at the moment of purchase.

An invoice on its own does not mean you've been paid. It's a request, not a confirmation, which is exactly why sending a receipt afterward matters.