A preliminary bill of sale sent before delivery that quotes price and terms but is not a demand for payment.
A proforma invoice is a quotation in invoice format, sent to a buyer before goods or services are supplied. It states the expected items, quantities, prices, taxes and terms so the buyer can confirm or arrange financing.
Unlike a tax invoice, a proforma invoice is not recorded in the books as a sale, does not create a payment obligation, and cannot be used to claim input tax credit. A tax invoice is issued once the deal is confirmed.
No. It is a good-faith estimate of terms, not a demand for payment or a record of an actual sale. The tax invoice issued later is the binding document.