Invoice vs receipt: what is the difference?

An invoice is a request for payment: it tells the buyer what they owe, for what, and by when. A receipt is proof of payment: it confirms that money arrived, how much, and on which day. If a customer pays on the spot, they usually get only a receipt. If they pay later, they get an invoice first and a receipt when the money lands.

What each document does

Think of the two as the opening and closing of the same transaction. The invoice opens a debt. Until it is paid, it sits in your accounts as money owed to you, and in the buyer's as money they owe. The receipt closes that debt. It is the buyer's evidence that they no longer owe it, and your record of when the cash came in.

• An invoice carries a due date and payment terms. A receipt has no due date, because nothing is outstanding.
• An invoice shows the amount payable. A receipt shows the amount received, which can be less if the payment was partial.
• An invoice tells the buyer how to pay. A receipt records how they did pay: cash, card, bank transfer or cheque.
• An invoice is dated when it is issued. A receipt is dated when the money arrived.

When each one is issued

The order depends on when the buyer pays, not on what you sell. A shop, a cafe or a taxi is paid at the moment of sale, so the only document is a receipt. A freelancer, a supplier or a contractor usually delivers first and is paid later, so the invoice comes first and the receipt follows days or weeks after.

Some sales need both on the same day. A customer who pays a deposit against an order gets a receipt for the deposit straight away, then an invoice for the balance when the work is done. Others need neither from you: if a marketplace or payment platform collects the money, it often issues the receipt on your behalf, and you should check whether it also counts as your invoice.

One sale, from quotation to receipt

Here is a single piece of work traced through every document, with the figures carried from one to the next. The work is a brand design job for a company in Riyadh, priced in riyals with Saudi VAT at 15%.

The quotation is an offer and creates no debt. The invoice is the document that carries the VAT and, for a business buyer, supports their claim to recover it. The receipt adds nothing to the tax position. It simply records that the invoice was settled.

The invoice and the receipt, side by side

Which one counts for tax

In most VAT systems the tax invoice is the document that matters. It is what the seller uses to account for output tax and what a registered buyer needs to reclaim input tax. A receipt on its own usually does not meet the tax invoice rules, because it lacks the seller's tax number, the tax amount or the breakdown.

The exception is the sale to a consumer, where one document often has to do both jobs. Saudi Arabia is the clearest example. A shop selling to a private person issues a simplified tax invoice at the till: it is the customer's receipt, and it is also a tax document with its own required contents.

ZATCA allows a simplified tax invoice for any supply to a natural person who is not registered for VAT. It must show the issue date, the supplier's name, address and VAT number, a description of the supply, and the amount payable with the VAT or a statement that VAT is included. ZATCA, Guideline for Tax Invoicing and Records under VAT Provisions

That simplified invoice must also carry ZATCA's QR code, which a customer or inspector can scan to check the seller, the time and the VAT. A plain receipt without it does not satisfy the rule, however neat it looks.

The Phase 1 QR code is mandatory on simplified tax invoices. ZATCA, Guide to Developed FATOORA Compliant QR Code

The UAE follows a similar pattern: its regulations allow a simplified tax invoice when the buyer is not VAT registered, which covers most sales to the public. Rules elsewhere differ, so check what your own tax authority asks for at the point of sale.

Tax invoice and simplified tax invoice contents in the UAE. UAE Cabinet Decision No. 52 of 2017, Article 59

Is a paid invoice the same as a receipt?

Not quite. Stamping an invoice paid, or marking it paid in your software, updates your own records. It does not tell the buyer when the money arrived or how it was paid, and the date on it is still the issue date. Many small businesses send a paid invoice instead of a receipt and most clients accept it, but a client whose bookkeeper reconciles every payment will ask for a proper receipt.

If you do send a paid invoice, add the payment date, the amount, the method and the bank reference. At that point you have written a receipt on top of an invoice, which is fine, as long as it is clear which date is which.

What to keep for your records

• Every invoice you issue, in an unbroken number sequence, including any you later cancel with a credit note
• Every receipt you issue, numbered the same way, each one naming the invoice it settles
• Invoices and receipts from your own suppliers, since those support the costs and input tax you claim
• The bank statement lines that match each payment, because the bank record is what a dispute is settled on

How long to keep them depends on the country. In Saudi Arabia the period is set by ZATCA, and other authorities set their own, so look up the current rule where you are registered.

ZATCA requires invoices, books and records to be kept for no less than six years from the end of the tax period they relate to, and longer for some capital assets. ZATCA, Guideline for Tax Invoicing and Records under VAT Provisions

Invoicora saves your invoices, quotations and receipts in your browser, on your own device. Nothing is uploaded and no account is needed, so the record stays with you.

If you are about to ask for money, start with the invoice generator. If the money has already arrived, use the receipt generator and quote the invoice number on it. And if the client has not agreed a price yet, send a quotation first, so the invoice that follows has something to point back to.