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GST on Exports: Complete Refund and Compliance Guide for 2026

Everything you need to know about zero-rated supplies, LUT filing, IGST refund claims, and maintaining GST compliance for your export business.

Understanding GST on Exports

The Goods and Services Tax (GST) framework provides significant relief to exporters through the concept of zero-rated supplies. This means exports are essentially tax-free, allowing Indian businesses to compete effectively in international markets without embedded taxes.

For businesses engaged in export activities, understanding GST compliance is crucial for maintaining cash flow and avoiding penalties. This guide covers everything from basic concepts to advanced refund strategies.

💡 Key Benefit

Under GST, exports are treated as zero-rated supplies, meaning you can either export without paying GST (under LUT) or claim a full refund of IGST paid.

Zero-Rated Supplies Explained

Under Section 16 of the IGST Act, exports are treated as zero-rated supplies. This is different from exempt supplies - with zero-rated supplies, you can claim full Input Tax Credit (ITC) and get refunds, ensuring no embedded tax in your export price.

✅ Zero-Rated Benefits

  • No GST charged on output
  • Full ITC available
  • ITC can be claimed as refund
  • No embedded tax in export price

❌ Exempt Supply Limitations

  • No GST on output
  • ITC is NOT available
  • Cannot claim refund
  • Tax embedded in cost

Two Methods of Export Under GST

Method 1: Export Under Letter of Undertaking (LUT)

This is the preferred method for most exporters. You export without paying IGST and claim refund of accumulated ITC. File Form GST RFD-11 annually before April 1st.

Method 2: Export with IGST Payment

Pay IGST at export time and claim automatic refund through ICEGATE. Useful for new exporters or those with inverted duty structure. Refund is faster (15-30 days) compared to LUT method.

LUT Filing Process: Step-by-Step

Step 1

Login to GST Portal

Navigate to Services → User Services → Furnish Letter of Undertaking (LUT).

Step 2

Select Financial Year

Choose the financial year. LUT is valid for one year and must be renewed annually.

Step 3

Fill Form RFD-11

Complete details of two witnesses and provide bank account details for refunds.

Step 4

Sign and Submit

Sign using DSC or EVC. LUT is usually auto-approved immediately.

IGST Refund Procedure

For export with IGST payment, the refund is automated through GST-Customs integration:

  1. File Shipping Bill with correct GSTIN and IGST amount
  2. Report export in GSTR-1 Table 6A
  3. Declare tax liability in GSTR-3B
  4. System automatically matches data with ICEGATE
  5. Refund credited to bank account within 15-30 days

Documentation Requirements

1

Export Invoice

Must contain GSTIN, HSN code, and "Supply meant for export under LUT" notation.

2

Shipping Bill

Must match GST invoice with correct GSTIN and invoice number.

3

Bill of Lading

Proof of actual export required for claiming refund.

4

Bank Realization Certificate

For ITC refund claims. See our FEMA compliance guide.

Conclusion

GST compliance for exports is straightforward once you understand the framework. Whether you choose LUT or IGST payment method, maintain accurate documentation and file returns on time.

Need Help with Export Compliance?

Connect with our trade experts for personalized guidance on GST, FEMA, and other export requirements.