What is a proforma invoice?
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Short answer
A proforma invoice is a preliminary bill setting out services, price and payment terms before a sale is final.1 It is not a GST tax invoice.1 A tax invoice is issued under section 31 of the CGST Act with the particulars in rule 46.1 For services, rule 47 requires the tax invoice within thirty days from the date of supply.1
| Full form | Governed by | Who needs it | Where it is used | Related terms |
|---|---|---|---|---|
| Not an abbreviation: a preliminary bill before the final invoice | No rule requires it; the tax invoice is governed by CGST Rules 46 and 4712 | Exporters asking for an advance or helping a client get purchase approval | Advance requests, purchase approvals and milestone billing | Tax invoice, receipt voucher, advance remittance, export invoice |
A marketing agency agrees a $6,000 campaign with a client in Melbourne, who asks for "an invoice" so their finance team can release a 50% advance. The agency has not done the work yet, so a final tax invoice would be premature, and a proforma invoice fills that gap.1
What does a proforma invoice mean in simple words?
A proforma invoice is a quote in invoice form: it tells the client what will be billed and on what terms, before the work is done.1 It looks like an invoice but does not record a completed supply.
- Contents: your details, the client's details, a description of the service, the amount and currency, and payment instructions.
- Status: a commercial document, not a GST tax invoice.1
For example, a design studio sends a proforma invoice for a logo project so the client can pay a deposit.
Why does a proforma invoice matter for Indian exporters and freelancers?
A proforma invoice matters because clients often need a document to pay against before the final invoice exists, and the rules for that payment still apply.12
- GST: rule 46 of the Central GST (CGST) Rules lists the particulars a tax invoice under section 31 must contain, and rule 47 requires a tax invoice for services within thirty days from the date of supply.1
- Bank compliance: banks credit an exporter's account only after satisfying themselves that a transaction is genuine, so supporting documents help.2
- Advances: under regulation 10(1) of the Foreign Exchange Management (Export and Import of Goods and Services) Regulations, 2026, the advance and any later realisation must go through the same AD bank.2
A proforma invoice does not meet the tax invoice requirement by itself.1
How does a proforma invoice work?
A proforma invoice works as the first document in a deal, followed by a receipt voucher for any advance and a tax invoice for the supply.1
| Situation | Why a proforma helps |
|---|---|
| Client wants to pay an advance | Their accounts team needs a document to pay against |
| Client needs purchase approval | It shows scope, price and terms before a purchase order |
| Fixed-price project with milestones | It sets out the amount due at each milestone |
| Bank asks about an advance received | It supports the purpose of the inward remittance |
The table reflects common practice; banks credit an exporter's account only after satisfying themselves that a transaction is genuine.2 The 2026 Regulations count the realisation period, nine months for foreign currency exports, from the date of invoice.23
How do you prepare a proforma invoice for a foreign client?
You prepare a proforma invoice with the same core details as a final invoice, clearly marked as a proforma.1
- Title: the words "Proforma invoice" and a reference number, in a separate series from tax invoices.
- Parties: your name, address, GSTIN if registered, and the client's name, address and country.
- Service: description, quantity or milestones, price and currency.
- Payment: payment terms and bank or payment-link details.
- Next step: a line that the final tax invoice will follow on completion or on each milestone.
Draft the final invoice with the export invoice generator.
What is the difference between a proforma invoice and a tax invoice?
A proforma invoice is a preliminary commercial document, while a tax invoice is the GST document that records the supply under section 31 and rule 46.1
| Document | Rule | Best for |
|---|---|---|
| Proforma invoice | No rule requires it | Requesting an advance or approval before work starts |
| Receipt voucher | Rule 50 of the CGST Rules | Recording an advance a registered supplier receives |
| Tax invoice | Section 31 and rule 46; for services, within thirty days of supply under rule 47 | Billing the completed supply, with the export endorsement where applicable |
The table draws on rules 46, 47 and 50 of the CGST Rules.1 The final export layout is in the export invoice format.
What do people get wrong about a proforma invoice?
People often treat a proforma invoice as the export invoice. GST requires the tax invoice, with the rule 46 particulars, as a separate document.1
- Numbering: mixing proforma and tax invoice numbers confuses records.
- Advances: whether GST applies to an advance for an export depends on how you export (with or without an LUT), so check with a chartered accountant.1
Which terms are related to a proforma invoice?
These terms describe the documents that come before and after a proforma invoice:
- Export invoice format: the layout of the final export tax invoice.1
- Advance remittance: money received before the export is completed.2
- GST on advance from a foreign client: how GST treats export advances.
- Freelance invoice template: a template for international invoices.
- LUT: the undertaking referred to on export invoices without IGST.
How did we verify this?
We checked this page against the sources below on 30 October 2026. Read our methodology or report an error.
- [1]CBIC: CGST Rules, 2017 (consolidated), rules 46, 47 and 50
- [2]RBI: Foreign Exchange Management (Export and Import of Goods and Services) Regulations, 2026, amended up to 22 September 2026 (regulations 4, 5 and 10)
- [3]RBI: FEMA (Export and Import of Goods and Services) (Amendment) Regulations, 2026, Notification No. FEMA 23(R)/(1)/2026-RB dated 22 September 2026
Frequently asked questions
Is a proforma invoice legally required for export of services?+
No. Neither the CGST Rules nor RBI's export regulations require a proforma invoice for export of services. A proforma invoice is a commercial document; the tax invoice under rule 46 of the CGST Rules is the one GST requires, and it must be issued within the rule 47 time limit.12
Can I ask a foreign client to pay against a proforma invoice?+
Yes, as a request for an advance. The foreign client pays against the proforma invoice, and you later issue the final tax invoice for the service once it is supplied, within thirty days from the date of supply under rule 47 of the CGST Rules.1
Does a proforma invoice need the LUT endorsement?+
The rule 46 export endorsement applies to the tax invoice, not the proforma invoice. A proforma invoice can mention that the final invoice will be issued under a Letter of Undertaking (LUT), but it does not replace the export tax invoice that carries the endorsement.1
Which date counts for the realisation period, the proforma invoice or the final invoice?+
The 2026 Regulations count the realisation period, nine months for foreign currency exports, from the date of invoice. Treat the tax invoice date as the invoice date rather than the proforma invoice date, and confirm with your bank if you received an advance first.23
Do I issue a receipt voucher when an advance arrives against a proforma invoice?+
A registered supplier receiving an advance issues a receipt voucher under rule 50 of the CGST Rules, a document separate from both the proforma invoice and the tax invoice. Whether GST applies to an export advance depends on whether you export under an LUT, so check with a chartered accountant.1
This page is general information for Indian service exporters, not tax or legal advice. Rules change and outcomes depend on your facts, so confirm with a chartered accountant before acting.
Keep reading
What should an export of services invoice contain under GST?
The fields an export of services invoice needs under Rule 46 of the CGST Rules, the LUT endorsement wording, currency, numbering and a sample layout.
RBI and FEMAWhat are the RBI rules for receiving advance payment against exports?
Rules for Indian service exporters who take advance payment from foreign clients from 1 October 2026: same-bank routing, interest limits and EDPMS, under regulation 10.
GSTHow does GST apply to an advance received from a foreign client?
An advance from a foreign client fixes the time of supply. What that means under an LUT and the IGST route, receipt and refund vouchers, refunds, and FEMA rules.
InvoicingWhat should an Indian freelancer's invoice to a foreign client include?
A field-by-field invoice template for Indian freelancers billing foreign clients, for both GST-registered and unregistered freelancers, with the rule 46 export wording.
GlossaryWhat is an advance remittance?
An advance remittance is money received from a foreign client before the service is delivered. The FEMA 2026 rules on routing, interest and bank tracking.