Invoice vs. receipt: what’s the difference?

What an invoice is for

An invoice is a request for payment. It lists what you supplied, the price, any tax, the total due and the payment terms. For businesses registered for VAT or GST, the invoice is also the document the customer uses to reclaim that tax, so it has to meet legal requirements.

Invoices are normal when the customer pays later: business-to-business work, projects billed in stages and services paid by bank transfer.

What a receipt is for

A receipt is proof of payment. It confirms that a specific amount was received on a specific date, by a specific method, for specific goods or services. Shops give receipts at the till; service businesses send one when an invoice is settled or when a customer pays upfront.

Customers keep receipts to claim expenses, return goods, use a warranty or show that a bill has been paid.

The key differences

• Timing: an invoice comes before payment, a receipt after
• Purpose: an invoice requests money, a receipt acknowledges it
• Amounts: an invoice shows the amount due; a receipt shows the amount paid
• Payment details: an invoice shows how to pay; a receipt shows how it was paid
• Numbering: both should have their own unique numbers
• Tax: in many countries the VAT/GST invoice, not the receipt, is the document for reclaiming tax

When to send both

Many businesses send an invoice to request payment and a receipt once it has cleared. This is common for deposits, part payments and clients whose accounts teams need proof of payment for their records.

When a customer pays on the spot, for example a handyman paid in cash at the end of a job, a receipt alone is often enough. If the customer needs a tax invoice, issue one as well, marked as paid.

What to put on a receipt

• Your business name and contact details
• A receipt number and the payment date
• Who paid (the customer’s name)
• What the payment was for, with amounts
• The total received and any balance still due
• The payment method (cash, card, bank transfer)
• The invoice number the payment relates to, if any

Three everyday examples

• A web designer finishes a project, sends an invoice with Net 14 terms and, when the bank transfer arrives, emails a receipt for the records
• A plumber is paid by card at the end of a call-out and hands over a receipt; no invoice is needed unless the customer asks for a tax invoice
• A caterer takes a 30% deposit: a receipt confirms the deposit, and the final invoice later shows the deposit as paid and the balance due

Other documents that are often confused

• Quote or estimate: an offer sent before any work, which the client can accept or decline
• Proforma invoice: a preliminary invoice before a sale is final, often used for advance payment or customs
• Credit note: reduces or cancels an invoice that was already issued
• Purchase order: sent by the buyer to the supplier to place an order
• Statement: a summary of several invoices and payments over a period

Do you need a receipt for every payment?

Card terminals, online shops and payment apps often send an automatic receipt, and for many small sales that is enough. For services paid by bank transfer, nothing is generated automatically, so a short receipt is useful whenever the customer asks for one, pays a deposit, pays in cash or needs proof for their own records.

Cash payments are the clearest case: without a receipt there is no record for either side. Always give one for cash, and keep a copy yourself.

How long to keep invoices and receipts

Tax authorities can ask to see your records years later, so keep copies of every invoice you send, every receipt you issue and the receipts for your own expenses. Retention periods are typically between five and ten years depending on the country and the type of record. Check the period that applies to you and store the PDFs somewhere backed up, not only in your email.