GST refunds are a critical cash flow mechanism for exporters, businesses with inverted duty structure, and those who overpaid tax. The process is fully online through the GST portal, but mistakes in the application cause delays and rejections.
Types of GST Refunds
| Refund Type | Who Can Claim | Form |
|---|---|---|
| Export of goods without payment of tax (LUT) | Exporters with valid LUT — refund of ITC accumulated | RFD-01 |
| Export of goods with payment of IGST | Exporters who paid IGST — get refund of IGST paid | Shipping bill acts as application |
| Inverted duty structure | When GST rate on inputs > rate on output | RFD-01 |
| Excess tax paid due to error | Taxpayers who paid more than liability | RFD-01 |
| Refund on deemed exports | Supplier of goods to EOU/SEZ/EPCG holders | RFD-01 |
| Tax paid by UN / Embassy | Diplomatic missions — quarterly refund | RFD-10 |
Step-by-Step Refund Process on GST Portal
- Login to GST Portal → Services → Refunds → Application for Refund
- Select refund type and tax period
- System auto-populates GSTR-1, GSTR-3B data — verify amounts
- Upload supporting documents: shipping bills, invoices, chartered accountant certificate (for ITC refunds > ₹2 lakh)
- Submit application — ARN (Acknowledgement Reference Number) generated within 15 minutes
- Tax officer reviews within 30 days (60 days for provisional refund for exports)
- Deficiency memo issued if documents are incomplete — respond within 15 days
- Final order and payment (NEFT/RTGS to bank account registered on portal)
Common Rejection Reasons and How to Avoid Them
- Mismatch between GSTR-1 and shipping bill export turnover — reconcile before applying
- Export proceeds not received within 9 months (or 15 months for status holders) — get bank realisation certificate
- LUT not valid for the export period — renew LUT at start of each financial year
- CA certificate missing for ITC refunds above ₹2 lakh — always attach Form RFD-01A
- GSTIN on shipping bill different from GST registration — correct immediately via customs amendment