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Indian exporters generally claim GST refunds through one of two routes: export without paying IGST and seek a refund of eligible unutilized input tax credit, or pay IGST on the export and seek a refund of that tax under the applicable process. The correct route, filing requirements and evidence depend on the transaction and current rules; filing one refund form is not the process for every export claim.
To investigate a delay, first identify the refund route and claim period, then check the GST Portal for the claim’s status or any notice. Reconcile the return, invoice, shipping-bill and customs information relevant to that route before deciding what to correct or submit. There is no single guaranteed end-to-end processing time established for every exporter refund type.
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What an export GST refund is—and what it is not
Exports are generally treated as zero-rated supplies under India’s GST framework. Zero-rated does not simply mean exempt: the framework provides refund mechanisms so eligible exporters can recover tax credit or IGST, subject to the relevant route and conditions. The GST Portal describes the broad routes as exporting without payment of integrated tax and seeking eligible unutilized input tax credit, or paying integrated tax and seeking a refund of that tax. The applicable rules and the exporter’s circumstances determine whether a route is available; this is not an unconditional choice for every transaction. See the CBIC guidance on zero-rated supplies.
The distinction matters when diagnosing a delay. A claim for unutilized input tax credit follows a different process from a refund of IGST paid on exported goods. The evidence, return data and authorities involved are not interchangeable, so begin by confirming which route applies to the claim in question.
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Choose the route that matches the export
| Point of comparison | Export without payment of IGST | Export with IGST payment |
|---|---|---|
| Tax treatment at export | No IGST is paid under this route, subject to applicable bond or Letter of Undertaking (LUT) requirements. | IGST is paid on the export, subject to applicable eligibility and rules. |
| Refund sought | Eligible unutilized input tax credit (ITC). | IGST paid on the export. |
| Process emphasis | Applicable LUT or bond compliance, eligible credit, and the refund application with relevant evidence. | Correct export, return and customs data flow and reconciliation of export records. |
| Sources cited here | CBIC refund rules and the GST Portal LUT guide. | GST Portal GSTR-1 guidance and CBIC guidance. |
This comparison is a starting point, not a determination of eligibility for a particular export. Check the rules that apply to the transaction and any amendments in force before relying on either route.
How the refund process works
1. Confirm the route and claim period
Identify whether the claim is for eligible unutilized ITC on exports made without payment of IGST, or for IGST paid on exported goods. Confirm which export transactions and tax period the claim covers, then use the filing and evidence process for that category. If records combine exports from different periods or routes, separate them before attempting to reconcile amounts.
For an ITC refund on zero-rated supplies made without payment of tax, the CBIC refund rules set out a calculation method. The amount claimed is therefore not simply an estimate of all input tax paid: it must be calculated under the applicable rules and supported by the relevant records. The refund-rules page describes the applicable refund categories and supporting evidence.
2. Align export, invoice and return records
For goods, compare the export invoice and shipping-bill details with the information reported in GST returns and the records used in the customs process. Differences in identifiers, dates, invoice values or other reported details may make it harder to match the export information needed for the relevant process. Confirm that the records concern the same export and period before changing a return or making a new claim.
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The GST Portal says shipping-bill number and date can be added through the amendment section of a subsequent GSTR-1 if those details were unavailable when the original GSTR-1 was filed. Use the portal’s GSTR-1 guidance for the relevant return workflow. A later amendment is a way to supply missing information; it does not by itself establish that a refund has been approved.
For export of goods, the CBIC refund rules also condition the relevant refund application on delivery of the export manifest or export report. Check that this export evidence exists for the shipment and that the details can be matched to the claim. Requirements differ by refund category, so do not assume that a document relevant to one route is sufficient for another.
3. Meet LUT or bond requirements when exporting without payment
An LUT is a Letter of Undertaking. Where the no-payment route applies, the exporter must meet the applicable LUT or bond requirements. The GST Portal provides a guide to furnishing an LUT. The CBIC’s published CGST Rules PDF updated to 13 September 2018 describes the bond/LUT procedure and export-proceeds conditions, but that document is historical. Verify the current amended rule and requirements rather than treating that edition as the current word of the law or relying on it for a current deadline.
CBIC Circular No. 37/11/2018-GST discusses delayed LUT filing and possible condonation in appropriate circumstances. Condonation is not automatic; the circular’s guidance applies to the situations it addresses and should not be read as a general guarantee that a late filing will be accepted. Consult the circular and assess the facts and applicable rules for the particular case.
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4. File through the route-specific process
CBIC’s refund rules describe electronic FORM GST RFD-01 for applicable refund applications, other than the specifically excluded export IGST refund route. The rules also specify supporting evidence by refund category. If your claim is an applicable ITC refund, use the relevant RFD-01 category and attach or provide the evidence required for it; submitting the form alone does not establish that the application is complete or that the claim will be sanctioned.
The refund process for IGST paid on exported goods has a distinct customs and return-data flow. Do not direct every exporter to file RFD-01 for that claim. First determine whether the transaction falls under the export IGST process or an RFD-01 refund category, then follow the requirements for that route. The CBIC refund rules explain the categories and relevant evidence.
How to investigate a delayed refund
Work from the claim outward: confirm what was filed, what information the route relies on, and whether the records match. A delay may require correcting missing or inconsistent data, responding to a notice, or establishing that the refund claim is in the right category. The following checks help narrow the issue without assuming that a mismatch is the only possible cause.
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1. Check the claim status and any notice
- Confirm which refund route and claim period you are checking.
- Review the GST Portal for the displayed status and any deficiency or clarification notice related to the claim.
- Read the notice carefully and identify the document, data point or explanation it requests. Address that specific issue rather than resubmitting unrelated records.
- Keep the claim reference, period, relevant return filings and any communications together so the response can be tied to the right application.
The applicable refund rules set out evidence requirements by category. A notice or deficiency should be assessed against the category actually claimed, not against a checklist intended for a different refund route.
2. Reconcile GSTR-1, GSTR-3B and export records
Compare the relevant export information in GSTR-1 with the invoice and shipping-bill records and, for goods, the corresponding customs export information. Check that the same transactions, identifiers and periods are being compared. Then review GSTR-3B against GSTR-1 for the relevant discrepancy. CBIC Circular No. 37/11/2018-GST addresses mismatches between those returns and notes that later-period GSTR-1 information may be relevant in applicable cases. Its guidance is specific to the situations covered by the circular, not a blanket promise that a mismatch will be ignored or a refund sanctioned.
If shipping-bill number or date was missing when GSTR-1 was filed, the GST Portal says it can be added through the amendment section of a subsequent GSTR-1. Confirm the correct return period and follow the portal’s GSTR-1 instructions before amending. Do not alter data merely to force a match; the corrected information should reflect the underlying export records.
3. Check that required filing and export evidence exists
- For a claim that uses RFD-01, confirm that the claim is in the correct category and that the applicable supporting evidence has been provided.
- For goods, verify the shipping-bill and invoice information and check the export manifest or export report condition where it applies.
- For exports without payment of IGST, check the applicable LUT or bond requirement and whether the records support compliance with it.
- Check that the relevant return information has actually been filed, including any necessary amendment, rather than relying on an internal record that was never reported.
The refund rules, Circular No. 37/11/2018-GST and the GSTR-1 guide address different parts of this review. Use each source for the point it covers: evidence and refund categories, specified mismatch situations, and return reporting respectively.
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4. Decide what action the mismatch calls for
Once you have isolated the discrepancy, determine whether it is a missing detail that can be added through the appropriate return amendment, an inconsistency that requires a correction to an underlying record, a notice that requires a response, or a question about eligibility or evidence. The action depends on the facts and the route. For example, adding missing shipping-bill details in a subsequent GSTR-1 may address the reporting gap described by the portal, but it cannot correct an inaccurate invoice or satisfy an unrelated evidence requirement.
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If the issue concerns a late LUT, review the circumstances against the CBIC circular and current rules. The circular discusses possible condonation in appropriate cases, not automatic acceptance. If the claim’s basis, amount or eligibility is unclear, have a qualified GST professional assess the transaction and filings before changing a return or making a new claim.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How long should an exporter expect to wait?
The cited official material does not establish one current, guaranteed end-to-end processing time for every type of exporter refund. A figure in an older FAQ or a timeline for one part of a process should not be treated as a service guarantee for all claims. CBIC’s Sectoral FAQs contain timing descriptions, but they may be historical; check for a current applicable rule or official service standard before relying on a particular timeline. See the CBIC Sectoral FAQs.
In practical terms, distinguish the date an application or return was filed from the time needed to resolve a deficiency, reconcile export data or complete a separate customs and return-data flow. Record the filing dates and notices for your claim; they help identify what period is relevant if you later assess statutory interest.
When delayed-refund interest may apply
Section 54 of the Central Goods and Services Tax Act provides for interest when a qualifying refund ordered under the relevant provisions is not paid within 60 days of receipt of the application. The general delayed-refund provision has a statutory ceiling of 6% for the rate notified by the Government. Certain refunds arising from an order that has attained finality have a statutory ceiling of 9%. These are statutory ceilings and a trigger for qualifying cases—not evidence of a typical refund-processing time or a promise that a particular exporter is automatically entitled to interest.
Before calculating or claiming interest, check the current notified rate, the kind of refund, the date and completeness of the application, the relevant order and the facts that determine eligibility. The statutory text is available in section 54 of the CGST Act. A professional can assess how the provision applies to a specific claim.
Common mistakes that prolong diagnosis
- Treating both routes as one process: an ITC refund under the no-payment route and a refund of IGST paid on exported goods use different processes.
- Assuming zero-rated means exempt: zero-rating is the framework under which these export refund routes operate; it is not a synonym that makes the route and eligibility questions disappear.
- Assuming RFD-01 is required for every export refund: the rules distinguish applicable RFD-01 claims from the specifically excluded export IGST refund route.
- Filing without reconciling the export data: the invoice, return and shipping-bill details need to correspond to the export being claimed, and goods claims have relevant customs evidence conditions.
- Assuming an old rule document or FAQ states the current position: verify amendments and current official requirements, especially for LUT/bond details and timelines.
- Expecting a circular to guarantee sanction: Circular No. 37/11/2018-GST addresses particular mismatches and delayed LUT situations; it is not a universal waiver or approval.
- Claiming interest from the number of days alone: the 60-day provision has conditions, and the statutory rate figures are ceilings. Confirm the notification and claim-specific eligibility.
Official sources to check
- CBIC, Goods & Service Tax: Refund Rules — refund categories, RFD-01 and category-specific evidence.
- GST Portal, GSTR-1 guide — reporting and later amendment of shipping-bill details.
- GST Portal, Furnishing of Letter of Undertaking — LUT portal guidance.
- CBIC Circular No. 37/11/2018-GST — specified return mismatches and delayed LUT filing.
- CBIC Circular No. 125/44/2019-GST — guidance on zero-rated supplies and refund processes.
- CGST Act, section 54 — statutory refund-interest provisions.
Frequently Asked Questions
Can I use FORM GST RFD-01 for every export refund?
No. CBIC’s refund rules describe RFD-01 for applicable refund claims and exclude the specified export IGST refund route, which has a distinct customs and return-data process.
Does a GST refund delay automatically mean I am owed interest?
No. Section 54 sets conditions for qualifying delayed refunds, and the applicable notified rate and claim-specific facts must be checked before concluding that interest is payable.
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