Invoice vs receipt
They look similar and get confused constantly, but they sit at opposite ends of the same transaction: an invoice asks for money, a receipt confirms it arrived.
The one-sentence version
Issue an invoice when you've delivered work and are owed payment. Issue a receipt the moment payment lands — especially for cash, deposits, and anything a client will expense.
| Invoice | Receipt | |
|---|---|---|
| When | After delivering work, before payment | At the moment of payment |
| What it says | “You owe me this, by this date” | “This money was received” |
| Key fields | Line items, rates, due date, payment instructions | Amount, payment method, what it settles |
| Bookkeeping | Accounts receivable | Proof of payment against the invoice |
| Client's use | Approves and schedules payment | Expenses, reimbursement, warranty claims |
When you need both
Deposits are the classic case: the client pays 25% to book a wedding photographer, the contractor collects materials money upfront, the tutor sells a ten-session package. In each one, the client should walk away with a receipt that says exactly what the payment covers and what remains.
Can one document do both?
A paid invoice — stamped “PAID” with the payment date — works as a receipt for most purposes, and many small businesses stop there. The risk is bookkeeping: if a client's AP system expects a separate receipt document, sending a marked-up invoice slows their side down. When in doubt, ask once what their accounting needs and then never again.
Practical setup
Run both documents from one numbering scheme so nothing slips: invoices as INV-2026-001… and receipts as RCPT-2026-001…, each referencing the other where they connect. Our free generator handles the invoice side, and the same sheet doubles as a receipt template with a single-line item.