An invoice proforma, also known as a proforma invoice, is a preliminary invoice sent to a customer before the goods or services are delivered. It serves as a non-binding quotation that outlines the essential details of the transaction, such as the quantities, prices, and payment terms.
Proforma invoices are particularly valuable in international trade, where they help importers estimate import duties and taxes. They can also be used to secure financing or confirm orders before production begins. Historically, proforma invoices were handwritten documents, but today they are often created using software or online tools.