Invoicing
What Is a Proforma Invoice?
A proforma invoice looks like an invoice but isn't one. It's a 'before' document — a quote dressed in invoice format — used to preview what the final bill will look like.
By Invoala Editorial Team · Published 2026-08-22 · Updated 2026-08-27
Definition
A proforma invoice lists goods or services, quantities, and prices in invoice format, but it's sent before the sale is final and doesn't record a debt. No payment is due on it; it's a promise of what the real invoice will show.
When businesses use them
Three common cases: international trade (customs authorities ask for a proforma to value goods before shipment), approving a purchase order internally (the buyer gets sign-off against a concrete document), and services like events or rentals where the client needs a documented quote in invoice format.
How it differs from a real invoice
A real invoice requests payment, creates a receivable, and goes into your books. A proforma is informational: no payment terms that bind, no revenue recorded, no legal obligation. Number them separately from your real invoice sequence to keep your books clean.
Turning a proforma into an invoice
When the sale finalizes, issue the real invoice with the same details. If you need a proforma, produce it separately and clearly labeled — never send a client a real invoice number on a document that isn't one.
Example
An exporter ships goods worth $4,000 to an overseas buyer. Customs needs a document describing the shipment before import — the exporter sends a proforma invoice with the value and description. Once goods arrive, the real invoice is issued for payment.
Frequently asked questions
Do I need to pay a proforma invoice?
No. It's a preview document. Some businesses take deposits against it, but the document itself doesn't create a payment obligation.
Is a proforma invoice legally binding?
Generally no — it's a quotation in invoice format. The real invoice (or contract) creates the obligation.
What's the difference between a proforma and an estimate?
Same idea, different format. An estimate is usually a free-form quote; a proforma uses the invoice layout. Use whichever your client or the situation calls for.
Put it into practice
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