GST on exports from India works differently from domestic supplies. Exports are treated as "zero-rated supplies" - meaning no GST is charged on the export invoice, and all GST you paid on inputs (procurement, packaging, freight, services) is refundable. This is one of the most significant cash flow advantages for rice exporters - but only if you claim it correctly and on time.
Many new exporters leave lakhs of rupees on the table simply because they do not file the refund or make procedural errors that get their claim rejected. This guide explains the full process clearly, from understanding zero rating to receiving your IGST refund in your bank account.
Exports from India are zero-rated under the IGST Act 2017. This means: (1) you do not charge GST on your export invoice, and (2) you can claim a full refund of all input GST paid - including on rice procurement, packaging materials, transport, and services used in the export supply chain.
What is Zero Rating for Rice Export?
Zero rating is not the same as exemption. An exempt supply means no GST is charged but you also cannot claim input tax credit. A zero-rated supply means no GST is charged on the final sale, but all input GST paid at earlier stages is fully refundable. Exports are zero-rated under Section 16 of the IGST Act - this is the legal foundation for your refund claim.
For rice specifically: paddy and rice in husk are exempt from GST. Milled rice (husked, semi-milled, wholly milled) attracts 0% GST on domestic supply also. However, services and goods used in the export chain - transport, packaging, fumigation, CHA charges - do attract GST, and those input credits are refundable when you export.
Two Routes for GST Refund on Rice Export
Route 1 - Pay IGST and Claim Refund
Under this route, you pay IGST on the export transaction and then claim a refund from the government. The shipping bill filed at customs serves as the refund application - you do not need to file a separate refund form. The system automatically processes refunds based on the GSTR-1 filing and shipping bill data.
Advantage: simpler process. Disadvantage: you pay IGST upfront and wait for refund - this blocks working capital.
Route 2 - Export Under LUT (Letter of Undertaking) Without Paying IGST
Under this route, you export without paying any IGST by filing a Letter of Undertaking (LUT) with your GST jurisdiction. You then claim refund of input tax credit (ITC) accumulated on your purchases. This is the preferred route for most exporters as it does not block working capital.
Advantage: no upfront payment, better cash flow. Disadvantage: slightly more complex refund filing process for ITC refund compared to IGST refund.
| Aspect | Route 1 - Pay IGST | Route 2 - LUT + ITC Refund |
|---|---|---|
| Upfront GST payment? | Yes - pay IGST, then claim back | No - export without paying IGST |
| Refund type | IGST paid refund (auto-processed via shipping bill) | Input Tax Credit (ITC) refund via RFD-01 |
| Working capital impact | Blocks capital until refund received | No capital blocked |
| Preferred for | Small exporters, occasional exports | Regular exporters, high volume |
| Refund timeline | 7–30 days (automated) | 15–60 days (officer processed) |
How to File LUT (Letter of Undertaking) - Step by Step?
The LUT must be filed before each financial year (April to March). You cannot export under LUT without a valid LUT for that year.
- Log in to GST portal at gstin.gov.in with your GSTIN credentials
- Go to Services → User Services → Furnish Letter of Undertaking (LUT)
- Select the financial year for which you are filing
- Fill in the details - GSTIN, legal name, authorised signatory details
- Make the declaration that you will export within the prescribed time or pay applicable taxes
- Submit using DSC (Digital Signature Certificate) or EVC (Electronic Verification Code)
- The LUT is approved immediately - you will receive ARN (Application Reference Number)
- Mention the LUT ARN on all export invoices issued under that LUT
How to Claim IGST Refund on Rice Export - Step by Step?
- File GSTR-1 - Report all your export invoices in GSTR-1 under Table 6A (zero-rated supplies with payment of tax) or Table 6B (zero-rated supplies without payment, i.e., under LUT)
- File GSTR-3B - Declare your IGST paid or ITC claimed in the same return period
- Shipping Bill filed at customs - Your CHA files the shipping bill during export; this links to your GSTIN automatically via ICEGATE-GST integration
- System auto-processes IGST refund - For Route 1 (IGST paid), refund is triggered automatically once GSTR-1, GSTR-3B, and shipping bill data match in the system
- File RFD-01 for ITC refund - For Route 2 (LUT), file Form RFD-01 on the GST portal within 2 years of the export date; attach export invoices, shipping bills, and GSTR-2A
- Refund credited to bank - Once approved, refund is directly credited to your registered bank account
IGST Refund Timeline
| Step | Timeline |
|---|---|
| GSTR-1 filing | By 11th of following month (monthly) or 13th (quarterly) |
| GSTR-3B filing | By 20th of following month |
| System matching (IGST route) | 3–7 days after both returns filed |
| Auto-refund credited (IGST route) | 7–30 days from shipping bill date |
| RFD-01 processing (ITC route) | 15–60 days from filing (officer discretion) |
| Maximum time limit to claim | 2 years from the date of export |
The 2-year time limit for claiming IGST refund is strict. Many exporters lose their refund simply by missing this deadline. File your refund claim within 90 days of export as a best practice - do not wait for 2 years.
Common Mistakes That Delay or Reject IGST Refunds
- GSTIN mismatch between invoice and shipping bill - your export invoice must quote the same GSTIN that is filed in GSTR-1; any difference blocks automatic matching
- Invoice number format mismatch - GST portal and ICEGATE must have identical invoice numbers; even a space or hyphen difference causes a mismatch
- Not filing GSTR-1 on time - auto-refund cannot process until GSTR-1 is filed for that period
- LUT not renewed for the new financial year - LUT expires on March 31; exporting in April without renewing LUT means your export is technically without LUT coverage
- Bank account not validated on GST portal - refund goes to the primary bank account registered on GST portal; if it is incorrect or not validated, refund fails
- Missing export proof for ITC refund - for RFD-01, you must attach shipping bills, export invoices, and Foreign Inward Remittance Certificate (FIRC) showing payment received from overseas buyer
We Handle GST Compliance on Every Export
Draba Ventures is GST registered and files all returns on time. Our export invoices are LUT-compliant, shipping bills are filed correctly, and our IGST refund claims are processed without delays.
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