A client asks for a proforma before confirming the order. An exporter needs to show customs the expected value of a shipment before it leaves. A consultant wants the client to sign off on scope and pricing before the engagement starts. In all three cases, what they need isn’t an invoice — it’s a proforma invoice, which is the same document with a different heading and a different legal status.
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What makes a proforma different from a regular invoice
The headline difference is legal. A regular invoice is a demand for payment, it creates an obligation. A proforma is an offer, not an obligation. It shows exactly what the final invoice will look like — the line items, rates, taxes, totals — but it doesn’t trigger a payment due date and it doesn’t count as a recognised accounting entry until the actual invoice is raised.
This matters for two practical reasons. First, the buyer can use a proforma to arrange finance, get purchase order approvals, or open a letter of credit before committing. Second, for exports, Indian customs and the buyer’s country’s import authority often need a proforma to calculate duties and clear the shipment before it actually arrives.
Does a proforma invoice need a GSTIN in India
No, a proforma is not a tax invoice. GST rules don’t require a proforma to carry your GSTIN or show a tax breakout. Most businesses include it anyway because the proforma is meant to mirror the final invoice closely, and the buyer’s accounts team expects to see it. But there’s no compliance consequence if you leave it off, unlike a final GST invoice where the GSTIN is mandatory for a GST-registered seller.
Similarly, a proforma doesn’t need an IRN (Invoice Reference Number) from the GST e-invoicing portal. The e-invoicing obligation applies to tax invoices, credit notes, and debit notes, not proformas.
When to send a proforma vs a quotation
A quotation is earlier in the process. It’s a formal offer of price, sometimes conditional, often without final quantities confirmed. A proforma comes after the buyer agrees in principle, quantities are fixed, the price is settled, and what’s left is the paperwork before the actual order is raised.
In practice, the line blurs. Many small businesses use them interchangeably, sending a proforma at the quoting stage because it looks more professional than a plain email. That’s fine as long as both sides understand it isn’t a bill. If you need a proper quotation format, the quotation template page has a separate generator for that flow.
Proforma invoice for advance payment
A common use: you want 50% upfront before starting work. Send a proforma for the full project value. The client pays the advance against the proforma. Once work is delivered, you raise the actual invoice for the balance (or for the full amount with the advance deducted as a credit). The proforma anchors the total agreed price and creates a paper trail for both sides without prematurely booking the revenue as earned.
After the proforma, the final invoice
Once the goods ship or the service is delivered, the proforma gets superseded by a real invoice with its own invoice number. The two should match in amounts unless something changed during the engagement. If they differ, a brief note on the final invoice (“as per proforma #PI-2026-041 dated 10 Sep, scope revised to…”) keeps the audit trail clean.
The invoice generator on this site generates the final version. The amounts from your proforma drop straight in.