Practical guide
Invoice vs receipt: what is the difference?
An invoice and a receipt can describe the same sale, but they are used at different points in the payment process.
Last reviewed: 11 July 2026
Quick answer
Use an invoice to show what a customer owes or was charged. Use a receipt to confirm that money was received. A business may issue both: the invoice first and the receipt after payment.
The difference is payment status
An invoice records a sale or asks the customer to pay. It commonly shows an invoice number, issue date, items or services, tax, total, payment terms, and a due date.
A receipt is an acknowledgement of payment. It should show what was paid, when it was paid, who received the money, and the payment method or reference when available.
When to send an invoice
Send an invoice when a customer has received goods or services and payment is due, or when you need a formal record of the amount billed.
- You need to show an amount due.
- The customer will pay later or has paid only part of the total.
- You need item, tax, payment-term, or due-date details.
- Your bookkeeping needs a numbered sales document.
When to give a receipt
Give a receipt after you have received the payment. Do not mark a receipt as paid unless the money was actually received.
- A customer paid in cash, by card, bank transfer, wallet, or another method.
- You need to confirm a deposit or advance payment.
- The customer needs a simple payment record.
- You want to link the payment to an earlier invoice number.
A simple invoice-to-receipt flow
Create the invoice when the amount becomes payable. Keep the invoice number unchanged. When payment arrives, update your records and give the customer a receipt that refers to the invoice. This keeps the charge and the payment easy to match.
If the invoice itself is updated to show “paid”, a separate receipt may not always be needed. Follow the customer's needs and the rules that apply to your business.
Common mistakes
- Using a receipt to request money that has not been paid.
- Removing the due date from an unpaid invoice.
- Calling a quotation an invoice before the work or price is approved.
- Creating a second sales record instead of linking the receipt to the original invoice.
- Assuming a receipt with tax fields is automatically a valid tax invoice.
Invoice and receipt compared
Use the document that matches the stage of the sale.
| Question | Invoice | Receipt |
|---|---|---|
| Main purpose | Request or record payment | Confirm payment received |
| Payment status | May be unpaid or partly paid | Usually paid |
| Due date | Common | Usually not needed |
| Tax details | Often important when tax applies | Depends on the sale |
| Who issues it | Seller or service provider | Person or business receiving payment |
| When it is issued | Before or when payment becomes due | After payment |
Important
The document title does not make the record true. The issuer must check the sale, payment status, tax details, and amount before sharing it.
Sources
We use official sources for rules and label practical BillQuest advice as guidance. Always check the source that applies to your country and situation.
- [1] Invoicing and taking payment from customers
GOV.UK
Explains the basic difference between an invoice and a receipt.
- [2] Invoices — what they must include
GOV.UK
Lists core invoice details and extra information for VAT invoices in the UK.
- [3] What kind of records should I keep?
Internal Revenue Service
Explains how invoices, receipts, paid bills, and proof of payment support business records.