GST Refund Guide: Process, Eligibility, Documents, Timeline (2026)

GST refunds are claimed by exporters, inverted duty structure businesses, deemed exporters, and others. In this guide, we cover the eligibility, process, documents, and timeline.

Who Can Claim GST Refund?

• Exporters and suppliers to SEZ (zero-rated supply) — refund of IGST paid, or of unutilised ITC where supplies are made under LUT
• Inverted duty structure — refund of accumulated ITC (where the tax rate on inputs is higher than on output supplies)
• Deemed exports — supplies to EOU / EHTP / STP / BTP units, against advance authorisation, etc. (SEZ supplies are zero-rated, not deemed exports)
• Excess balance in the Electronic Cash Ledger
• Refund to UN / embassies / specified organizations
• Refund on account of court / tribunal order
• Tax paid on an advance received where the supply was later cancelled and no invoice issued
• Provisional refund for exporters
• Refund of pre-deposit (paid during appeal)

Process of Claiming GST Refund

Step 1: File GSTR-1 (with export invoices)

File GSTR-1 with all export invoices (with / without LUT — Letter of Undertaking). Declare invoice-wise details.

Step 2: File GSTR-3B

File GSTR-3B for the period, reporting zero-rated supplies in Table 3.1(b) and paying any IGST due. There is no refund section in GSTR-3B; the claim itself is made separately.

Step 3: File Form RFD-01

File Form RFD-01 on the GST portal → Refunds → Application for Refund. Choose the reason for refund (export, inverted duty, etc.). Upload supporting documents. Exception: for export of goods on payment of IGST, the shipping bill itself is treated as the refund application (Rule 96), and the refund flows through ICEGATE once GSTR-1 and GSTR-3B match.

Step 4: Acknowledgement or Deficiency Memo

Within 15 days the officer issues an acknowledgement (RFD-02) or a deficiency memo (RFD-03). After a deficiency memo you file a fresh, corrected RFD-01. A show cause notice (RFD-08) is issued before any amount is rejected, and you reply in RFD-09.

Step 5: Refund Order

GST officer issues the refund order (RFD-06). Under Section 54(7) the order is due within 60 days of a complete application, and payment is released through RFD-05 to the bank account registered on the portal.

Step 6: Refund Sanctioned

Refund sanctioned + amount credited to your bank account. GST portal updates the refund status.

Documents Required

• Copy of GST registration certificate
• GSTR-1, GSTR-3B for the refund period
• Export invoices + shipping bills (for export refund)
• LUT (Letter of Undertaking) for export without IGST
• Bank statement
• Statement of invoices annexed to RFD-01 (Statement 1A for inverted duty, Statement 3/5 for exports)
• ITC reconciliation
• Supporting documents (appellate order, Bank Realisation Certificates or FIRCs for export of services, etc.)
• Cancelled cheque + bank details

Timeline

Interest on Delayed Refund

If the refund is not paid within 60 days of a complete application, interest at 6% per annum is payable for the delay (9% where the refund arises from an appellate order), under Section 56. The interest is sanctioned by the officer along with the refund.

Common Mistakes to Avoid

• Not filing GSTR-1 + GSTR-3B correctly (export invoices missing)
• Mismatch between GSTR-1, GSTR-3B, and RFD-01 (consistency is key)
• Not maintaining LUT (mandatory for export without IGST)
• Wrong calculation of refund amount
• Missing supporting documents
• Not following up with the GST officer
• Wrong bank account details (refund fails)

Cost

Frequently Asked Questions