Free Proforma Invoice Generator | Online Proforma Invoice Maker

What Is a Proforma Invoice and How Does It Work?

A proforma invoice is a preliminary document sent by a seller to a buyer before goods are delivered or services are rendered. It outlines the expected costs, quantities, and terms of a future transaction, giving the buyer a clear picture of what the final invoice will look like. Unlike a standard invoice, a proforma invoice is not a demand for payment. Instead, it serves as a good-faith estimate that helps both parties agree on pricing and scope before committing. Proforma invoices are widely used in international trade to satisfy customs requirements and facilitate letters of credit. They are also valuable for domestic transactions where a buyer needs management approval before placing an order. By issuing a proforma invoice, businesses demonstrate professionalism, reduce disputes over pricing, and streamline the approval process. Our free proforma invoice generator lets you enter your business details, add line items with quantities and prices, apply taxes, and download a polished PDF ready to share with your client in minutes.