The Core Difference
An invoice is a request for payment — it's sent before payment is made. A receipt is a confirmation of payment — it's issued after payment has been received. Both documents are important for business record-keeping, but they serve entirely different functions.
What Is an Invoice?
An invoice is a document you send to a client asking them to pay for goods or services you've delivered. It contains the amount owed, a breakdown of items, payment terms, and your contact details. Invoices are legally binding payment requests and are used as evidence of a business transaction.
Key features of an invoice:
- Sent before payment is received
- Contains a due date
- Lists items or services in detail
- Used in accounts receivable tracking
- Helps with VAT and tax reporting
What Is a Receipt?
A receipt acknowledges that payment has been made. It's the final document in a transaction and proves that money changed hands. Receipts are essential for clients who need to record the expense in their accounting and for expense reimbursements.
Key features of a receipt:
- Issued after payment is received
- Shows payment method and date
- No due date (payment is already complete)
- Used for expense tracking and audits
- Can be as simple as a printed till receipt
Can an Invoice Become a Receipt?
Yes. Many small businesses mark a paid invoice as a receipt by stamping or labeling it "PAID" along with the date and payment method. This dual-purpose document is widely accepted and reduces paperwork for both parties.
When Should You Send Each?
- Send an invoice when: completing a project, delivering goods, or providing ongoing services billed on a schedule.
- Issue a receipt when: collecting payment in person, confirming payment has been processed, or a client requests proof of payment.
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Create Free Invoice →Record-Keeping Best Practices
Keep copies of all invoices you send and all receipts you receive. Most countries require businesses to retain financial documents for 5–7 years for tax purposes. Using an invoicing tool that generates clean PDFs makes this archiving much easier.