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Proforma invoice vs invoice
A proforma invoice is a preliminary document. It looks like an invoice, but it is sent before the sale is final — for example to confirm a quotation, declare goods for customs, or ask a buyer to arrange payment or a letter of credit.
A final invoice records a completed sale and creates the payment obligation. Many businesses issue a proforma first and a final invoice after the order is confirmed.
- Proforma: preliminary, used for confirmation, customs or prepayment approval
- Final invoice: records the sale, used for payment and bookkeeping
- The generator marks the document type so the two cannot be mixed up
What to include on a proforma invoice
Include the same details as a standard invoice: seller and buyer information, a reference such as a proforma or quotation number, the date, item descriptions, quantities, unit prices, taxes where applicable, and payment instructions.
If you are using the proforma for customs or prepayment, add the payment terms and any shipping information in the notes fields so the buyer has everything in one document.
When to use it
Common cases include confirming an order before production starts, showing a buyer what they will pay before they transfer funds, and providing declared values for shipments. Requirements vary by country, so check what applies to your situation.