If your Letter of Undertaking for exports was rejected, has expired with the new financial year, or simply will not show up on the GST portal, your zero-rated export route is at risk. This guide explains how to confirm the exact status, gather your evidence, file or re-file the LUT, regularize any exports made in the gap, and escalate when the portal or the officer goes quiet.
Reviewed on: 2026-05-29.
Quick answer
A Letter of Undertaking (LUT) lets you export without paying integrated tax, but it is valid for one financial year only and must be re-filed each year on gst.gov.in. If your LUT was rejected, expired, or is not reflecting, log in to the portal, open the Letter of Undertaking area under User Services, and check the status and Application Reference Number (ARN). Re-file the LUT for the correct year, regularize any export made without it, and raise a grievance on the GST self-service portal if it still does not appear. Escalate to your jurisdictional officer and, for records, file an RTI. Use a GST practitioner before regularizing a gap period.
This guide is for GST-registered exporters of goods or services in India who use a Letter of Undertaking (LUT) to export without paying integrated tax, and who have hit a problem with that LUT. It is useful if:
A LUT matters because exports are zero-rated under GST. You can export either under a LUT without paying integrated tax, or by paying integrated tax and claiming a refund. A valid LUT is what keeps your working capital free and your supply chain moving. When the LUT breaks, the whole zero-rated route is exposed.
This is an action guide, not tax advice. Where the stakes are high, such as regularizing a long gap or responding to a notice, engage a Chartered Accountant or GST practitioner. If your wider export setup is also stuck, the companion guide on a suspended IEC or DGFT risk flag and the one on IGST export refunds not credited on ICEGATE cover the next links in the chain.
Log in to gst.gov.in with your GSTIN credentials. Go to Services > User Services > View My Submitted LUTs (the exact menu label can change between portal versions, so look for the Letter of Undertaking area under User Services). Check the status for the current financial year. It will usually read as filed, rejected, or simply have no entry for the year.
If there is an entry, note the Application Reference Number (ARN) and download the acknowledgement as a PDF. If the status is rejected, read the remark carefully. Save a dated screenshot of whatever you see. This is your evidence baseline.
Also check the email and mobile number linked to your GST registration. The portal often sends a message when a LUT is filed or rejected, and the officer may have written separately. Write down the date your earlier LUT expired, which is normally the end of the previous financial year.
Work out exactly which exports are affected. Pull your export invoices and shipping bills for the period since your last valid LUT lapsed. For each one, note the date, the value, and whether you exported on the without-payment route assuming a LUT was in place.
If you exported during a gap with no valid LUT, do not panic, but do not ignore it either. List those supplies separately. You will decide later, ideally with a GST practitioner, whether to pay integrated tax and claim a refund or to represent to your officer with proof that the exports were genuine.
Gather the people and papers you need to re-file. The online LUT asks for the names and addresses of two independent witnesses and is signed with your digital signature certificate (DSC) or electronic verification code (EVC). Confirm your DSC is working and registered on the portal before Monday, because a DSC problem is one of the most common reasons a LUT filing fails to complete.
Draft your re-filing plan and, if needed, a short representation to the jurisdictional officer using the template in this guide. Organise your evidence: registration certificate, previous LUT acknowledgement, export invoices, shipping bills, and bank realization records.
If the LUT was rejected on a curable ground, such as a missing witness detail or a wrong financial year selected, prepare a clean re-filing that fixes exactly that defect. If you cannot tell why it was rejected, prepare a written request to the officer asking for the recorded reason.
Call a Chartered Accountant or GST practitioner if a gap period is involved or if the rejection looks substantive. A short paid consultation before you file is worth far more than fixing a mistake afterwards. Once you are clear, you are ready to file on Monday.
| Document | What it proves | Where to get it |
|---|---|---|
| LUT status screenshot and ARN | Current LUT is filed, rejected, expired or missing for the year | gst.gov.in > Services > User Services > Letter of Undertaking area |
| Previous LUT acknowledgement (if any) | You had a valid LUT earlier and when it expired | Your records / portal download history |
| Rejection remark or system message | The reason the application was not accepted | Portal status page; GST-registered email and SMS |
| GST registration certificate | You are a registered exporter with a valid GSTIN | gst.gov.in > Services > Registration |
| Export invoices for the period | What was exported, when, and to whom | Your accounts / invoicing system |
| Shipping bills (goods) or export documents (services) | Goods or services were actually exported | ICEGATE / customs broker; service contracts and proof |
| Bank realization certificate or FIRC | Export proceeds were received in foreign currency | Your authorised dealer (AD) bank |
| Two independent witness details | Required field in the online LUT undertaking | Names, addresses and occupations you arrange |
| Working DSC or EVC access | You can sign and submit the LUT online | Your DSC token provider / registered mobile for EVC |
| GSTR-1 export tables for the period | Exports were reported in your returns | gst.gov.in > Services > Returns > GSTR-1 |
Log in to the GST portal and open the Letter of Undertaking area under User Services. Select the current financial year and read the status. There are four common situations: the LUT shows as filed (no action needed beyond saving the acknowledgement), it shows as rejected, it has expired because the year changed, or there is no entry at all because the filing never completed. Note the ARN if there is one and save a dated screenshot. Knowing precisely which situation you are in decides everything that follows.
A LUT is a declaration you give to the GST authority that you will fulfil the conditions for exporting without payment of integrated tax. Exports are zero-rated, and the LUT is the route that avoids blocking your cash in tax you would otherwise pay and reclaim. The single most important rule to remember is that a LUT is valid only for the financial year for which it is furnished. It does not roll over. At the start of each year you must file a fresh LUT before raising your first export invoice. An expired LUT is the most common reason exporters suddenly find their without-tax route is not protected.
If you do not meet the eligibility conditions for a LUT, you may be required to furnish a bond instead, often supported by a bank guarantee, to your jurisdictional officer. The precise eligibility conditions and any bank-guarantee percentage can change over time and can vary by case, so verify the current position on the official portal or with your officer rather than relying on an old figure.
If the LUT was rejected, look for the officer's remark on the status page and in your GST-registered email. Common curable reasons in practice include selecting the wrong financial year, incomplete witness details, a mismatch in the authorised signatory, or a request for further documents. If no reason is visible, write to your jurisdictional officer asking for the recorded reason for rejection.
If the LUT is simply not reflecting, first confirm whether the filing actually completed. If an ARN was generated, the submission went through and this is likely a display or sync issue: clear your browser cache, try a different browser, and recheck after a few hours. If no ARN was generated, the filing did not complete and you should file again from scratch. Either way, save screenshots at each stage.
On the portal, open Furnish Letter of Undertaking, select the correct financial year, and read the on-screen undertakings. Accept the standard declarations, enter the names and addresses of your two independent witnesses, and sign using your DSC or EVC. Confirm that a new ARN is generated and download the acknowledgement PDF immediately. Do not assume it filed until you see the ARN and the acknowledgement.
If the portal asks for documents this year that it did not ask for earlier, follow the current on-screen instructions, because the LUT format can be updated from year to year. Once filed and accepted, your zero-rated without-tax route is protected again for that financial year.
If you exported during a gap when no valid LUT was in place, those supplies need to be regularized. There are generally two routes. You can pay the integrated tax on those exports and then claim a refund, or you can represent to the jurisdictional officer with proof that the exports were genuine, such as shipping bills and bank realization records, and ask that the without-tax treatment be accepted. The right route depends on your facts, the amounts, and how long the gap was. This is exactly the point to involve a GST practitioner, because choosing wrongly can cost interest or trigger a notice. For the related GSTR-2B and credit-side reconciliation, our guide on GST refund and ITC mismatch CBIC complaints is useful.
A refund of accumulated input tax credit on zero-rated exports is processed separately from the LUT, but the two are linked. A valid LUT for the relevant period strengthens your refund claim, while a rejected or late LUT can give the refund officer a reason to query the file. Fix the LUT first, regularize any gap, and then file the refund with your export invoices, shipping bills and bank realization records ready. Keep your GST returns (GSTR-1 export tables and GSTR-3B) current throughout, because the refund officer will check that the exports were reported.
If you have an ARN but the LUT is still not visible after a sensible wait, or it was rejected on a ground you believe is wrong, raise a grievance on the GST self-service portal quoting the ARN and attaching your screenshots. Note the ticket number. Simultaneously write to your jurisdictional GST officer with a short, factual representation (use the template below) and request that the LUT be accepted or that the recorded reason for rejection be supplied.
If the officer does not respond within a reasonable time, escalate to the jurisdictional senior officer (such as the Deputy or Joint Commissioner of your range) and, if needed, lodge a grievance on CPGRAMS directed to the Department of Revenue and CBIC. To obtain the records and any order on your LUT, you can file an RTI application to the public information officer of your GST authority, as explained in the RTI section below. If a formal proceeding follows, engage a qualified GST practitioner or advocate.
| Stage | Action | Forum / Destination | Target timeline |
|---|---|---|---|
| 1 | Re-file the LUT correctly for the financial year; download the ARN acknowledgement | GST portal — Furnish Letter of Undertaking | Same day; before next export invoice |
| 2 | Written representation to jurisdictional officer if rejected or not reflecting | Jurisdictional GST officer / range (CGST or State GST) | A few working days; keep dated acknowledgement |
| 3 | Online grievance quoting the ARN and screenshots | GST self-service grievance portal — LUT category | Varies; note ticket number |
| 4 | Escalate to senior officer of the range | Deputy / Joint Commissioner of your Commissionerate or State GST office | After lower level is unresponsive |
| 5 | CPGRAMS grievance to CBIC / Department of Revenue | pgportal.gov.in — Ministry of Finance > Revenue > CBIC | Government target timeline applies |
| 6 | RTI application for the LUT status and any order/recorded reason | Public Information Officer, jurisdictional GST authority | 30 days (RTI Act response window) |
Replace the text in square brackets with your own details before sending to your jurisdictional GST officer.
To, The Jurisdictional Officer (GST) [Name of CGST Commissionerate / State GST Office] [Address of Jurisdictional Office]
Date: [DD/MM/YYYY]
Subject: Representation regarding Letter of Undertaking (LUT) for exports
for FY [YYYY-YY] — GSTIN [Your 15-digit GSTIN]
Respected Sir / Madam,
1. I am [Your Name], the [Proprietor / Partner / Authorised Signatory] of
[Legal Name of Business] (GSTIN: [Your GSTIN], registered address: [Your Registered Address]). We are engaged in the export of [goods / services].
2. I filed a Letter of Undertaking for the financial year [YYYY-YY] on the
GST portal. The application reference number is [ARN], dated [DD/MM/YYYY] (screenshot enclosed as Annexure A).
3. The current status of the LUT is [rejected / not reflecting / pending].
[If rejected: The remark recorded is "[exact remark]". / If no reason is visible: No reason for rejection has been communicated to me.]
4. I submit that we are eligible to furnish a LUT and that our exports are
genuine, as supported by the documents enclosed: (a) GST registration certificate (Annexure B). (b) Export invoices for the period (Annexure C). (c) Shipping bills / export documents (Annexure D). (d) Bank realization records / FIRC (Annexure E).
5. I request that the LUT for FY [YYYY-YY] be accepted and reflected on the
portal so that our zero-rated exports without payment of integrated tax are duly covered. In the alternative, kindly supply the recorded reason for rejection so that I may rectify the defect promptly.
6. [If a gap period applies: I also seek guidance on regularizing exports
made between [DD/MM/YYYY] and [DD/MM/YYYY], during which the LUT was not in force, and am willing to take the appropriate corrective step.]
7. I am available for any clarification or for submission of original
documents at a time convenient to your office.
Yours faithfully,
[Your Full Name] [Designation: Proprietor / Partner / Director] [Legal Name of Business] [GSTIN] [Mobile Number] [Email Address]
Enclosures (Annexure List): A — LUT status screenshot and ARN acknowledgement B — GST registration certificate C — Export invoices for the period D — Shipping bills / export documents E — Bank realization records / FIRC
The Right to Information Act, 2005 applies to public authorities, which includes the Central Board of Indirect Taxes and Customs (CBIC) and the State GST departments. In a LUT dispute, RTI is useful in specific record-related situations:
To file an RTI online, see our step-by-step guide on how to file an RTI online in India. The fee for a central government authority is the prescribed nominal amount, and the public information officer must respond within 30 days. If you get no reply or an unsatisfactory one, our guide on the RTI first appeal under Section 19 explains the next step. For using RTI alongside other grievance channels, see CPGRAMS and RTI together, and for deeper strategy, The RTI Playbook.
RTI has clear limits in a LUT problem, and it is important to be honest about them:
If the export blockage is wider than the LUT, see our guides on a suspended IEC or DGFT risk flag, on IGST export refunds not credited on ICEGATE, and on the full GST, tax and export compliance library.
No. A Letter of Undertaking is valid only for the financial year for which it is furnished. You must file a fresh LUT on the GST portal at the start of each new financial year. If you keep exporting without a valid LUT after it expires, those supplies are treated as if no LUT was in place, which can expose you to tax and interest. File the new LUT before you raise your first export invoice of the year.
Zero-rated means the export of goods or services is taxed at a rate of zero, so you do not load GST onto the export price. You can export either under a LUT without paying integrated tax, or on payment of integrated tax and then claim a refund. A valid LUT is what lets you export without paying tax upfront, so an LUT that is rejected or expired puts your zero-rated route at risk.
First confirm whether the filing actually completed. Log in to gst.gov.in, go to the Letter of Undertaking area under User Services, and check whether an Application Reference Number (ARN) was generated and the status shows as filed. If you have an ARN but the LUT is not visible, save a screenshot, clear browser cache and try a different browser, and raise a grievance on the GST self-service portal quoting the ARN. If no ARN was generated, the filing did not go through and you should file again.
If you exported during a period when you had no valid LUT, the department may treat those supplies as not covered by the without-payment route. In practice exporters regularize this by either paying the integrated tax on those exports and claiming a refund, or by representing to the jurisdictional officer with proof of genuine export, such as shipping bills and bank realization. The exact treatment can vary, so consult a GST practitioner before deciding how to regularize.
Most registered exporters who have not been prosecuted for serious tax evasion can file a LUT online on the GST portal. Exporters who do not meet the eligibility conditions for a LUT may instead be required to furnish a bond, usually backed by a bank guarantee, to the jurisdictional officer. The precise eligibility conditions and any bank-guarantee percentage can change, so verify the current position on the official portal or with your GST officer.
A refund of accumulated input tax credit on zero-rated exports is processed separately from the LUT, but a valid LUT for the relevant period strengthens your refund claim. If your LUT was rejected or late, fix the LUT first, regularize any export made without it, and then file the refund. Keep your export invoices, shipping bills and bank realization records ready, because the refund officer will check that the exports were genuine and the LUT position was sound.
The online LUT on the GST portal generally asks you to accept the standard undertakings and to provide the names and addresses of two independent witnesses, and it is signed using your digital signature or electronic verification code. You usually do not have to upload your earlier physical LUT each year. Always read the on-screen instructions for the current year, because the portal format and any document requirement can be updated from time to time.