GST Refunds: Types, Application Process & Documents Required

Summary: The article provides a comprehensive overview of the GST refund framework under the CGST Act, 2017, emphasizing that refund claims are governed strictly by statutory provisions, particularly Section 54, as reaffirmed by the Supreme Court in 2026. It explains the various categories of refunds, including exports, zero-rated supplies, inverted duty structure, excess tax payments, deemed exports, wrong-head tax payments, and electronic cash ledger balances. The discussion highlights the importance of identifying the correct refund category, calculating eligible amounts accurately, filing within the applicable two-year limitation period, and submitting complete documentation to avoid deficiency memos. It also outlines the electronic refund process through FORM GST RFD-01 and related forms, documentary requirements, timelines for sanction, interest on delayed refunds, and circumstances where refunds may be withheld. The article further discusses the risk-based provisional refund mechanism introduced from October 2025 and subsequent Finance Act, 2026 amendments aimed at accelerating refunds while stressing that accurate reconciliation and timely compliance remain critical.

Introduction: The questions I field most often on refunds are rarely about whether you are entitled to one. Entitlement is usually clear. The friction lies elsewhere — in identifying the correct category, computing the eligible amount, assembling the right statement and supporting documents, and filing within the two-year window before the claim is time-barred. A refund that is due on paper but poorly documented on the portal will sit in a deficiency loop, and every rejection resets the clock only up to the extent the two-year limit still permits.

This article sets out the position as it stands, drawing only from the statute, the rules, and CBIC’s own instructions.

1. GST Refund Legal Framework: Key Provisions Under CGST and IGST Laws

Refund under GST is a creature of statute. The Supreme Court has repeatedly held, most recently in Union of India v. Torrent Power Ltd. (2026), that Section 54 of the CGST Act, 2017 is a complete and exhaustive code — no refund can be granted outside its four corners on grounds of equity alone. This matters in advisory: I steer clients toward structuring a claim within a recognised statutory category rather than pursuing a refund on general fairness, because the latter almost always fails at the appellate stage.

The core provisions are:

• Section 54, CGST Act, 2017— the principal refund provision, covering the persons entitled, the two-year limitation, the relevant date, unjust enrichment, provisional refund, and the order of sanction.
• Section 55, CGST Act, 2017— special refund of tax paid on inward supplies by notified persons (UN agencies, multilateral financial institutions, foreign consulates and embassies, and Canteen Stores Departments).
• Section 56, CGST Act, 2017— interest on delayed refund.
• Section 77, CGST Act, 2017 read with Section 19, IGST Act, 2017— refund of tax paid under the wrong head (intra-State treated as inter-State, or vice versa).
• Section 16, IGST Act, 2017— zero-rated supplies (exports and supplies to SEZ), which drive the largest volume of refund claims.
• Rules 89 to 97A, CGST Rules, 2017— the procedural machinery, including the refund formula for inverted duty and zero-rated ITC, the documentary evidence, provisional refund, and consumer welfare fund credit.
• Circular No. 125/44/2019-GST dated 18.11.2019— the master circular on the fully electronic refund process, still the most-referred document in this area.

2. Types of GST Refund Claims and Applicable Legal Provisions

The refund situations recognised under the law can be grouped as follows. All are now filed through a single electronic application, FORM GST RFD-01, on the common portal, with one important exception noted below.

A practical note on category 1: for export of goods with payment of IGST, no separate RFD-01 is filed. The shipping bill, once the Export General Manifest (EGM) and the GSTR-1/GSTR-3B data match, is deemed to be the refund application under Rule 96, and the refund is processed through the Customs/ICEGATE system. This is the single most common source of confusion I see — clients wait for a portal application that they were never required to file.

3. GST Refund Time Limit: How to Determine the Relevant Date

Under Section 54(1), a refund application must be filed within two years from the relevant date. The relevant date is not the same across categories, and getting it wrong is the most common way a genuine claim becomes time-barred. The key relevant dates in the Explanation to Section 54 are:

The balance in the electronic cash ledger under Section 49(6) is one refund that is not subject to this two-year limit — it is the taxpayer’s own money lying with the government and can be claimed at any time.

4. How to File GST Refund Application in Form RFD-01: Step-by-Step Process

The entire refund process is electronic and runs through the GSTN portal. The workflow, form by form, is as follows:

1. File FORM GST RFD-01 at Services > Refunds > Application for Refund, selecting the correct refund category, financial year and tax period. Only one tax period per application is permitted for most categories. On submission, the eligible amount is debited from the electronic credit or cash ledger, and an ARN is generated.

2. Acknowledgement in FORM GST RFD-02, to be issued within 15 days if the application is complete (Rule 90). Where it is deficient, a deficiency memo in FORM GST RFD-03is issued and a fresh application must be filed — importantly, the rectified application must still fall within the two-year limit.

3. Provisional refund in FORM GST RFD-04— for zero-rated supplies, and now for inverted duty structure claims, 90% of the amount claimed is sanctioned provisionally (Rule 91). This is discussed in Part 6 below, because the mechanism changed materially in October 2025.

4. Scrutiny and, if required, a show cause notice in FORM GST RFD-08, to which the applicant replies in FORM GST RFD-09.

5. Final order in FORM GST RFD-06, to be issued within 60 days from the date of receipt of a complete application (Section 54(7)), followed by the payment order in FORM GST RFD-05.

6. Any rejected amount is re-credited to the electronic credit ledger through FORM GST PMT-03.

For refund on inward supplies by notified persons under Section 55, a separate application in FORM GST RFD-10 is used. Exporters supplying without payment of tax must first furnish a Letter of Undertaking in FORM GST RFD-11 for the financial year.

5. Documents Required for GST Refund Claims Under Rule 89

The documentation is category-specific, and this is where most claims stall. The application in RFD-01 must be accompanied by the applicable statement and supporting evidence under Rule 89(2). The commonly used statements are:

Across all categories, the following recurring documents apply:

• Unjust enrichment — CA/Cost Accountant certificate. Where the refund claimed exceeds ₹2 lakh, a certificate in Annexure 2 of RFD-01 from a Chartered Accountant or Cost Accountant is mandatory under Rule 89(2)(m), certifying that the incidence of tax has not been passed on. Where the claim is ₹2 lakh or less, a self-declaration under Rule 89(2)(l) suffices. This certificate is not required for exports, refund of unutilised ITC, tax paid on supplies not made, or tax paid under the wrong head — the categories under clauses (a), (b), (c), (d) and (f) of Section 54(8), where unjust enrichment does not arise.
• Declaration regarding drawback— that no drawback of central/integrated tax has been availed, and no refund of IGST claimed on the same supply, where accumulated ITC is claimed under Section 54(3)(ii).
• Copy of the relevant returns(GSTR-1 and GSTR-3B) for the period, and, for the “Any Other” category, up to ten supporting files of not more than 5 MB each.

CBIC’s stated intent, as reflected in the master circular, is a light documentary burden — a statement of invoices is the primary document, with the CA certificate reserved for the higher-value, unjust-enrichment cases. In my experience the applications that clear on the first pass are those where the statement figures reconcile exactly with GSTR-1 and GSTR-3B; mismatches, however small, are the leading cause of a deficiency memo.

6. 90% Provisional GST Refund: Risk-Based Framework and 2025–26 Reforms

Two developments have materially improved cash flow for exporters and manufacturers, and both are worth flagging to clients.

Risk-based provisional refund (from 1 October 2025). Pursuant to the 56th GST Council meeting held on 3 September 2025, Rule 91(2) was amended by Notification No. 13/2025-Central Tax dated 17.09.2025, and CBIC issued Instruction No. 06/2025-GST dated 03.10.2025. Under this framework, 90% of a refund claim is sanctioned provisionally on the basis of a system-generated risk evaluation, for applications filed on or after 1 October 2025. Low-risk claims are fast-tracked with minimal manual intervention; the proper officer retains discretion to withhold provisional refund in a specific case only for reasons recorded in writing. Certain categories of persons notified under Notification No. 14/2025-Central Tax are excluded from provisional refund, as are cases pending in appeal, under a show cause notice, or where an earlier refund matter has not attained finality.

Extension to inverted duty structure. As an interim trade-facilitation measure, the same 90% provisional mechanism was extended to inverted duty structure (IDS) claims filed on or after 1 October 2025, pending the legislative amendment. That amendment has since been made: the Finance Act (No. 4), 2026 (Act No. 4 of 2026), notified on 30 March 2026, amended Section 54(6) to place IDS refunds on the same statutory footing as zero-rated supplies for provisional refund, and inserted an exception to Section 54(14) removing the ₹1,000 threshold for refund of IGST paid on export of goods. As of now these provisions are to come into force from a date to be notified, so practitioners should confirm the effective date before relying on the statutory (as opposed to the interim instruction-based) route.

A point I emphasise to clients: provisional refund does not close the claim. The remaining 10% is released only after final verification under Rule 92, and if the finally admissible amount is lower than the amount provisionally sanctioned, the excess is recoverable with interest. Provisional refund is a liquidity tool, not a final adjudication.

7. GST Refund Processing Timeline, Interest on Delay and Withholding Rules

• Sanction within 60 days. The proper officer must pass the refund order within 60 days of receipt of a complete application (Section 54(7)).
• Interest on delay (Section 56).If the refund is not paid within 60 days, interest at 6% per annum is payable from the expiry of 60 days until payment. Where the refund arises from an order of an adjudicating or appellate authority, the Tribunal or a court that has attained finality, and is not refunded within 60 days of the application made consequent to that order, interest runs at 9% per annum.
• Minimum threshold. No refund is granted where the amount is less than ₹1,000, applied per tax head (CGST, SGST/UTGST, IGST) and not cumulatively — subject to the export-of-goods exception introduced by the Finance Act, 2026 once notified.
• Withholding (Section 54(11)).Refund may be withheld where the order is under appeal or further proceedings and the Commissioner is of the opinion that grant is likely to adversely affect revenue on account of fraud or malfeasance, after giving the taxpayer a hearing.

8. Practical GST Refund Filing Tips to Avoid Deficiency Memos and Rejections

A few things that repeatedly make the difference between a smooth sanction and a stalled claim:

• Reconcile the refund statement with GSTR-1 and GSTR-3B before The most frequent deficiency memo I see arises from a rupee-level mismatch between the invoice statement and the filed returns.
• For export of services, ensure the BRC/FIRC is available and matches the invoice value. Refund on services will not be sanctioned without proof of realisation in convertible foreign exchange.
• Complete Aadhaar authentication of the authorised signatory and proprietor/partner under Rule 10B — it is a precondition to filing the refund application.
• Diarise the relevant date for each claim the moment the underlying transaction occurs, not at the time of filing. Two years passes quietly.

Conclusion

The GST refund architecture is, at its core, a promise of tax neutrality — the taxpayer should carry only the tax the law intends, no more. For the practitioner, the value we add is rarely in establishing entitlement; it is in matching the claim to the correct statutory category, computing it under the right rule, documenting it so it clears on the first pass, and filing it well inside the two-year window. With the risk-based provisional refund mechanism and the Finance Act, 2026 changes, the direction of travel is toward faster, analytics-driven disbursement for compliant taxpayers — which rewards clean, consistent data more than ever.

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Disclaimer: This article is intended for general information and educational purposes only and does not constitute professional advice or a solicitation of any kind. The contents are based on the provisions of the CGST Act, 2017, the IGST Act, 2017, the CGST Rules, 2017, and the relevant CBIC circulars, instructions and notifications available in the public domain as on the date of writing, and are subject to amendment. Readers are advised to refer to the original statutory provisions and to obtain specific professional advice before acting on any part of this article. The author and the firm accept no liability for any loss arising from action taken or not taken in reliance on this article.