An invoice asks a customer to pay for goods or services, while a receipt confirms that payment was already made. You send the invoice before payment and the receipt after it.
The two documents look similar and share a lot of the same details, which is why they get mixed up. The difference is timing and purpose: one says "please pay," the other says "you paid." Here's how they compare, when you need each one and what to put on a receipt.
What is the difference between an invoice and a receipt?
An invoice is a request for payment that shows what's owed and when it's due. A receipt is proof of payment that shows what was paid, how and when.
| Invoice | Receipt | |
|---|---|---|
| Purpose | Request payment | Confirm payment |
| When it's sent | Before payment, after or during the work | After payment is received |
| Main number | Amount due and balance due | Amount paid |
| Key dates | Invoice date and due date | Payment date |
| Shows payment method? | How the client can pay | How the client did pay |
| Who usually needs it | The client, to know what to pay | The client, as proof for their records |
| Numbering | Invoice number, such as INV-0107 | Receipt number, often linked to the invoice number |
| Can it be overdue? | Yes | No |
What is an invoice?
An invoice is a document you send to a client asking them to pay for work you did or products you delivered. It lists the items, prices, total, due date and how to pay. Until it's paid, it's an open amount the client owes you.
For a full walkthrough, see our guide on how to make an invoice.
What is a receipt?
A receipt is a record that a payment was received. It's what the client keeps to show they paid, for their own bookkeeping, taxes, reimbursement or warranty claims.
A receipt usually includes:
- The word "Receipt" and a receipt number
- Your business name and contact details
- The customer's name
- The date of payment
- What was paid for, with amounts
- Tax, if any
- The total paid
- The payment method, such as cash, check number or card
- The invoice number it pays, if there was one
You can make one in a minute with the free receipt maker.
When do you need an invoice, a receipt or both?
Use an invoice when the client pays later, and a receipt when they pay on the spot. Send both when a client pays an invoice and wants proof of payment.
| Situation | What to send |
|---|---|
| You finish a job and the client pays within 15 days | Invoice now, receipt (or a paid invoice) after payment |
| A customer pays in cash at the time of sale | Receipt only |
| A client pays a deposit before work starts | Deposit invoice, then a receipt or updated invoice showing the deposit paid |
| A business client needs a document for its accounts payable team | Invoice |
| A client asks for proof they paid | Receipt or paid invoice |
| A buyer needs a price document before ordering | A quote or proforma invoice, then an invoice |
Is a paid invoice the same as a receipt?
A paid invoice often works as a receipt. If the invoice is marked "Paid" and shows the payment date, amount and method, most clients accept it as proof of payment. If the client asks for a formal receipt, or paid without an invoice, issue a separate receipt.
Can one document be both an invoice and a receipt?
Yes, in a sense. Some businesses issue an "invoice and receipt" when payment happens at the same time as the sale, such as at a market stall or a counter. The document shows the items, the total and "Paid in full" with the date and method. For anything paid later, keep them separate so the record of what was owed is clear.
Do you need to keep copies of invoices and receipts?
Yes. Keep copies of every invoice you send and every receipt you issue or receive. They support your income and expenses at tax time. How long to keep them depends on your situation, so ask your accountant or tax professional.
What about sales receipts, proforma invoices and statements?
These are related documents with their own jobs.
- Sales receipt: a receipt issued at the moment of sale, with no invoice before it.
- Proforma invoice: a preview of an invoice sent before delivery, often to collect prepayment. See what a proforma invoice is.
- Statement: a summary of all invoices and payments for one client over a period, showing what's still open.
- Credit note: a document that reduces what a client owes, for example after a return.
How do you record payments against an invoice?
Record each payment on the invoice with the date, amount and method, so the balance updates and both sides can see what's left. This matters most with deposits and partial payments.
In Invoicefy, you can record partial payments on an invoice as cash, check, bank transfer or other, and the balance due updates. Your client can view the invoice and download a PDF from their private link at any time. For a separate receipt, use the free receipt maker. You can also start from the invoice templates if you need a blank invoice layout.
Frequently asked questions
Is an invoice proof of payment?
No. An unpaid invoice only shows what's owed. A receipt, or an invoice marked paid with the payment date and method, is what shows payment was made.
Which comes first, an invoice or a receipt?
The invoice comes first when the client pays later. The receipt comes after payment. If the customer pays at the time of sale, you may only need a receipt.
Do I need to give a receipt if I already sent an invoice?
Not always. Many clients accept a paid invoice as proof of payment. If they ask for a receipt, or paid in cash, it's good practice to send one.
Can a receipt have the same number as the invoice?
You can reference the invoice number on the receipt, but give the receipt its own number if you issue receipts regularly. That keeps both records easy to find.
Written by The Invoicefy team
We build Invoicefy, the free invoicing app for contractors, freelancers and small service businesses, and we write these guides from what we see our users run into every day.