Receipt vs invoice: what is the actual difference?
The two words get swapped constantly, and in casual speech nobody minds. In bookkeeping they are opposite ends of the same transaction: an invoice is a request for payment, and a receipt is the acknowledgement that the payment happened. One looks forward, one looks back.
An invoice is a demand with a deadline
An invoice is issued before the money moves. It names the amount owed, the work or goods it covers, and — the part that makes it an invoice rather than a quote — a due date and payment instructions. Because it is a claim on someone else's money, it usually carries more formal detail: full legal names of both parties, tax registration numbers, and a sequential invoice number that must not skip or repeat. In many countries an unpaid invoice is enforceable evidence of a debt.
A receipt is a confirmation with no deadline
A receipt is issued after the money moves, and it closes the loop. It needs less legal machinery because it is not asking for anything: it simply records that on this date, this amount was paid, for these items, by this method. This is why shop receipts can be tiny slips of thermal paper while invoices tend to be full pages. The receipt's job is proof of payment, not proof of obligation.
When you need both, and when one is enough
A walk-in cash sale needs only a receipt — there was never a moment where money was owed. A thirty-day client project needs both: an invoice when the work is delivered, and a receipt when the payment clears. If you are buying, keep whichever document proves you paid; if you are selling, keep the invoice for your ledger and give the receipt to the customer. The one combination that causes trouble is issuing an invoice marked 'paid' and calling it a receipt — some tax authorities accept it, others do not, so check before you rely on it.
Frequently asked questions
Can one document be both?
Sometimes. A 'paid invoice' or 'invoice-receipt' is a single document that carries both the demand and a stamp confirming settlement, and several countries accept it. Others require the two to be separate and sequentially numbered independently. Because the answer is jurisdictional, ask your accountant before standardising on a combined document.
Which one do I need to claim an expense?
Usually the receipt, because it proves the money actually left your account. An invoice alone only proves you were asked to pay. For larger purchases many tax authorities want the invoice too, since it carries the seller's tax registration details that the receipt may omit.
Is a card slip a receipt?
Not quite. The slip your card terminal prints is a proof of payment — it shows an amount and a card, but usually not what you bought. That is why shops print it alongside the itemised receipt rather than instead of it. Keep both if the purchase matters.
Make one now. Type an order, watch it print line by line, download the PNG. Free, in your browser, nothing uploaded.
Open BNJ Receipt