A foreign buyer likes your product and asks for a formal price before placing an order. They need something in writing to get their bank, their internal approvals or their import permit moving. That document is a proforma invoice.
This guide explains the proforma invoice meaning, when exporters use it, what to include, how to make one and how it differs from a tax invoice and a commercial invoice.
Proforma invoice meaning
A proforma invoice is a preliminary document that a seller sends to a buyer before the sale is confirmed. It states the goods, the price, the quantity and the terms the seller is offering. It is a quote in invoice form, not a demand for payment.
The word "proforma" means "as a matter of form". The document is a statement of what the final invoice is expected to look like.
A proforma invoice is not a legal tax document. It does not create a tax liability, and the buyer cannot use it to claim input tax credit. Once the buyer accepts the offer and the goods are shipped, the seller issues the final commercial invoice.
Why exporters use a proforma invoice
- Price confirmation. The buyer sees the exact price, quantity and terms in writing.
- Opening a letter of credit. Banks often ask for a proforma invoice before they issue one.
- Advance payment. Some buyers send an advance payment against it.
- Import permits and foreign exchange approvals. Some countries require the buyer to show a proforma invoice to get a licence or release foreign currency.
- Custom orders. It confirms specifications before production begins.
What to include in a proforma invoice
The law does not set one format, but a good proforma invoice carries:
| Detail | What to write |
|---|---|
| Document label | "Proforma Invoice", clearly marked at the top |
| Proforma number and date | A unique number so it can be referenced |
| Seller details | Name, address, contact, tax and IEC numbers |
| Buyer details | Name, address and contact |
| Goods description | Product name, model or specification |
| HS code | Tariff code for each item |
| Quantity and unit price | With the total value |
| Currency | The currency you are quoting in |
| Incoterm | For example FOB or CIF, with the named place |
| Payment terms | Advance, letter of credit or credit days |
| Delivery terms | Ports, expected shipment date and lead time |
| Validity | How long the offer remains open |
| Bank details | Where the buyer should pay, if advance payment applies |
| Signature or stamp | Authorised signatory |
Our guide to the commercial invoice shows how the final document builds on these details.
How to make a proforma invoice
- Mark the document clearly. Title it "Proforma Invoice" so no one mistakes it for a tax invoice.
- Add your details and the buyer's. Use full legal names and addresses.
- Number and date it. Use a separate numbering series from your tax invoices.
- List each item. Give a clear description, HS code, quantity and unit price.
- State the total and the currency.
- Add the Incoterm. This shows which costs, such as freight and insurance, are included.
- State payment and delivery terms.
- Set a validity date. Many exporters allow a few weeks to a few months, depending on the product and market.
- Sign and send. Keep a copy for your records.
Proforma invoice for export
For exports, the proforma invoice usually does these jobs:
- It helps the buyer arrange payment, a letter of credit or an import permit.
- It sets out the price and trade terms so both sides agree before shipping.
- It can show the currency, Incoterm and HS code, which makes the later commercial invoice quicker to prepare.
You issue the final export invoice when the goods are supplied. The proforma and the final invoice should agree on goods, quantity and price. If anything changes, update the proforma or note the change in writing.
Difference between a proforma invoice and an invoice
The comparison depends on which invoice you mean. In international trade, people compare the proforma with two others.
Proforma invoice vs tax invoice
| Point | Proforma invoice | Tax invoice |
|---|---|---|
| Purpose | Estimate before the sale | Records the completed supply |
| Legal status | Not a statutory tax document | Mandatory under GST |
| Tax liability | None by itself | Creates the tax liability |
| Input tax credit | Buyer cannot claim | Buyer can claim, if eligible |
| Reported in GST returns | No | Yes |
| Changes | Can be revised freely | Corrected through credit or debit notes |
Proforma invoice vs commercial invoice
| Point | Proforma invoice | Commercial invoice |
|---|---|---|
| When issued | Before the sale is final | After the sale is confirmed, with the shipment |
| Used for | Quote, bank, permit, advance payment | Customs clearance, valuation and payment |
| Binding | Not binding in itself | Records the actual sale |
| Customs | Accepted only in limited cases | Required for regular consignments |
Never use a proforma invoice in place of a commercial invoice for a regular shipment, and do not ship on the proforma alone.
Proforma invoice and GST
Indian guidance describes a proforma invoice as a non-statutory document with no prescribed GST format. It does not go into GST returns and does not need e-invoicing or an invoice reference number. You may show an estimated GST amount, but it is only an estimate. For exports, check how GST applies to your supply, such as under a letter of undertaking, with your accountant before you quote.
Common proforma invoice mistakes
- Not labelling it clearly. Without the word "proforma", it may be treated as a tax invoice.
- Using the same number series as tax invoices. This causes confusion in accounts.
- Leaving out the validity date. The buyer may assume the price stays open indefinitely.
- Missing Incoterm. The buyer cannot tell what costs you are covering.
- Using it for customs clearance. Customs normally needs the commercial invoice.
How IWCC helps
Interworld Cargo Care checks that your proforma, commercial invoice and transport documents agree before cargo moves. Our customs clearance team reviews descriptions, values and codes, so your shipment does not stall over a document mismatch.
Need help with your export paperwork?
Send us your order details and we will check the documents before shipping. Get a free quote or call 098110 59654.


