Invoice vs Receipt: Key Differences Explained

Two Different Documents, Two Different Purposes

Invoices and receipts are both essential commercial documents, but they are used at completely different stages of the purchasing cycle. Mixing them up can cause major headaches for both your bookkeeping and your clients.

What is an Invoice?

An invoice is a request for payment. It is issued by the seller to the buyer after goods or services have been delivered, but before the payment has been made.

• Purpose: To request payment from a client.
• Timing: Sent before payment is received.
• Key Elements: Contains due dates, payment terms, and a unique invoice number.

What is a Receipt?

A receipt is a proof of payment. It is issued by the seller to the buyer after the invoice has been paid in full.

• Purpose: To act as proof of purchase and payment.
• Timing: Sent after payment is received.
• Key Elements: Shows the amount paid, payment method used, and zero balance due.

Should I Send Both?

In many freelance and B2B contexts, sending an invoice is standard. Once the client pays via bank transfer or credit card, their bank statement acts as their proof of payment, so a formal receipt isn't always necessary.

However, if a client pays in cash, or if they specifically request a receipt for their accounting department, you must provide one.