REGIONFORMAT · PROFORMA INVOICE
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Proforma invoice format

A proforma invoice is a commitment to supply on stated terms, not a demand for payment of tax. It is used to get an advance, open a letter of credit or obtain a purchase order — and it carries no tax consequences at all, which is the whole point of it.

FREE PLAN · NO CARD · NOTHING TO INSTALL
Proforma Invoice · PI-008804 APR 2026 · VALID 15 DAYS
DescriptionQtyRateAmount
MS Angle 50×50×61,40058.0081,200.00
Freight to Panipat16,400.006,400.00
Sub-total₹ 87,600.00
GST @ 18% (estimated)₹ 15,768.00
Estimated total₹ 1,03,368.00
Not a tax invoice · no input tax credit can be claimed on this document
What this document must contain
  • The words "Proforma Invoice" — clearly, so it is not mistaken for a tax invoice
  • Your name, address and contact details
  • The customer’s name and address
  • A reference number and date
  • Description, quantity and rate of what is being offered
  • Estimated taxes, marked as estimated
  • Validity period of the offer
  • Payment and delivery terms
  • A clear statement that it is not a tax invoice

What it is for

Getting an advance payment, opening a letter of credit, obtaining a purchase order, or giving a customer something to take to their finance department. It commits you to terms; it does not record a supply.

Why it is not a tax invoice

No supply has happened, so no tax is due and no input credit arises. Marking the document clearly is what stops a customer’s accounts department booking it as a purchase, which happens more often than you would think.

What follows it

When the supply is made, a tax invoice is issued. If an advance was received against the proforma, the receipt and its adjustment against the eventual invoice both need recording.

Proforma invoice questions

Is a proforma invoice a legal document?

It is a binding offer on the terms stated, for the validity period stated, but it is not a tax document. No GST liability arises from it and no input credit can be claimed against it.

Can a customer claim input credit on a proforma invoice?

No. Only a valid tax invoice supports an input credit claim, which is why a proforma should say plainly on its face that it is not one.

What is the difference between a proforma invoice and a quotation?

In practice very little, and the two are often used interchangeably. A proforma is typically more formal and more specific — used where the buyer needs a document for an advance payment or a letter of credit.

Do I need to number proforma invoices?

Not under the GST rules, since they are not tax documents, but you should — you will want to trace which proforma became which order and which invoice.

Related

Turn a proforma into an order and an invoice

In tBiz the document becomes the next one without re-typing, against the same party ledger.