Commercial Invoice for Export explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
An export commercial invoice must carry the exporter's and buyer's details, GSTIN, invoice number and date, full goods description with ITC (HS) code, quantity, unit price and total value, currency, Incoterm with named place, and the GST endorsement prescribed by Rule 46 of the CGST Rules.
Why This Document Carries So Much Weight
The commercial invoice is the one document that every party to an export transaction relies on. Customs assesses value from it. The bank checks it against the letter of credit. The buyer's customs authority uses it to compute duty. Your own accounts and GST returns are built on it. And when a claim arises, it is the primary evidence of what was sold and for how much.
Because so many parties use it for different purposes, it must satisfy all of them at once — which is why a clean invoice format is worth setting up properly once rather than improvising each time.
Mandatory Particulars
| Particular | Detail required |
|---|---|
| Exporter | Name, full address, GSTIN, IEC |
| Invoice number and date | Consecutive serial number, unique for the financial year |
| Buyer / consignee | Name, address and country of the recipient |
| Delivery address | Where different from the buyer's address |
| Notify party | Where the buyer has nominated one |
| Goods description | Full commercial description; must not conflict with other documents |
| ITC (HS) code | Eight-digit Indian tariff item |
| Quantity | Number of units and unit of measurement |
| Unit price and total value | Per line and in aggregate |
| Currency | Stated explicitly, not assumed |
| Incoterm | Rule, named place and edition |
| Freight and insurance | Shown separately where included in the price |
| Country of origin | Country of manufacture of the goods |
| Port of loading and discharge | Named ports |
| Marks and numbers | Matching the packing list and transport document |
| Gross and net weight | Consistent across the document set |
| Payment terms | Advance, LC, D/P, D/A, open account, with tenor |
| Bank details | Account, IFSC, SWIFT, AD code |
| GST endorsement | The Rule 46 wording for the route chosen |
| Signature | Authorised signatory, with name and designation |
The Rule 46 Endorsement
Rule 46 of the CGST Rules requires an invoice for an export supply to carry, in addition to the normal particulars, an endorsement in one of two forms:
- "SUPPLY MEANT FOR EXPORT ON PAYMENT OF INTEGRATED TAX" — where the exporter pays IGST and claims refund of the tax paid; or
- "SUPPLY MEANT FOR EXPORT UNDER BOND OR LETTER OF UNDERTAKING WITHOUT PAYMENT OF INTEGRATED TAX" — where the exporter supplies under an LUT and claims refund of unutilised input tax credit.
The rule also requires the name, address and country of the recipient, the delivery address including the destination country, and, where applicable, the number and date of the application for removal of goods for export. Omitting the endorsement is a routine ground for a refund query.
Proforma Invoice versus Commercial Invoice
| Proforma invoice | Commercial invoice | |
|---|---|---|
| When issued | Before the sale is concluded | When goods are ready for shipment |
| Purpose | Quotation; basis for LC opening or import licence | Operative document for customs, payment and accounts |
| Binding | An offer, valid for a stated period | A demand for payment for goods supplied |
| Used by customs | Generally not | Yes, as the basis of valuation |
| Entered in books | No | Yes |
One practical point: the letter of credit is usually opened against the proforma invoice, so any error in the proforma — a wrong description, a wrong port, an unworkable delivery date — is reproduced in the credit and becomes a discrepancy in the commercial invoice later. Get the proforma right.
Consistency Across the Document Set
Most rejections and queries come from documents that contradict one another rather than from any single document being wrong. Before despatch, check that these agree across the invoice, packing list, transport document, certificate of origin and insurance certificate:
- Exporter and consignee names, spelt identically
- Goods description
- Quantity, number of packages, marks and numbers
- Gross and net weight
- Value and currency
- Ports of loading and discharge
- Invoice number and date, referenced consistently
Under a letter of credit, Article 14(d) of UCP 600 tolerates data that is not identical but does not tolerate data that conflicts. Weight shown as 12,450 kg on the invoice and 12,540 kg on the packing list is a conflict.
Errors That Cause Real Problems
- Description not matching the credit. Under UCP 600 Article 18, the invoice description must correspond with that in the credit. Copy it exactly.
- Invoice issued by the wrong entity. It must be issued by the beneficiary named in the credit — a group company invoice will be refused.
- Undervaluation. Declaring below the true transaction value to reduce the buyer's duty is a customs offence at both ends and it defeats your own insurance and export incentive claims.
- Missing the Incoterm. Customs cannot determine what the price includes, and valuation queries follow.
- Freight and insurance rolled into a single figure where the destination requires them separately for duty computation.
- Wrong country of origin. Origin is where the goods were manufactured, not where they were shipped from or where your office is.
- Invoice number not matching the shipping bill. This breaks the EDPMS and GST refund reconciliation.
Practical Tips
- Build one invoice template that carries every field above, and switch fields off rather than adding them ad hoc.
- Keep the invoice series unbroken and unique for the financial year — gaps invite questions in both GST and customs scrutiny.
- Where the buyer needs the invoice legalised or attested by a chamber of commerce or embassy, build that time into the schedule; it is a frequent cause of delay to Middle East shipments.
- State the ITC (HS) code and, where known, the buyer's destination code separately and clearly labelled.
- Have a second person check the set against the credit or the contract before despatch. Nearly every discrepancy is visible on a careful read.