Step-by-Step Guide 8 Steps

How to Apply for GST LUT for Export of Services (Form RFD-11)

Apply for GST LUT using Form RFD-11 to export services without IGST payment. Step-by-step process, eligibility, documents, and renewal on the GST portal.

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Dhanush Prabha
8 min read 90.4K views
Reviewed by Industry Experts & Legal Professionals.
Last Updated: 
Quick Overview
Estimated Cost₹0
Time Required1 to 3 Working Days
Total Steps8 Steps
What You'll Need

Documents Required

  • GST registration certificate (GSTIN) confirming active registration status
  • PAN card of the registered entity or proprietor
  • Copy of previously filed LUT if renewing for a new financial year
  • Self-declaration confirming no prosecution under CGST or IGST Act exceeding Rs 2.5 crore
  • Details of two independent and reliable witnesses including name, address, and occupation
  • Digital Signature Certificate (DSC) or access to registered mobile number for EVC verification
  • Export invoices or contracts confirming intent to make zero-rated supplies

Tools & Prerequisites

  • Active GST portal login credentials at gst.gov.in with valid username and password
  • Class 2 or Class 3 Digital Signature Certificate (DSC) registered on the GST portal
  • Internet connection and a supported web browser (Chrome, Firefox, or Edge)

Exporting services from India without paying Integrated GST upfront is possible through a Letter of Undertaking (LUT) filed under Form GST RFD-11. Every financial year, thousands of IT companies, freelancers, consultants, and service exporters file LUT on the GST portal to preserve working capital and avoid the IGST refund cycle. Filing LUT costs nothing, takes 1 to 3 working days for acceptance, and allows you to make zero-rated supplies throughout the financial year. This guide covers every aspect of the LUT process: eligibility, documents, step-by-step portal navigation, renewal, revocation, and the critical compliance obligations you must meet after filing.

  • Zero government fee - Filing LUT under GST using Form RFD-11 is completely free on the GST portal
  • Valid for one financial year - LUT covers April 1 to March 31 and must be renewed annually before the new FY begins
  • 1 to 3 working days - LUT acceptance typically takes 1 to 3 working days after online submission
  • No bank guarantee needed - Unlike a bond, LUT requires only a self-declaration and two witness details
  • Covers goods and services - LUT applies to all zero-rated supplies, including exports and supplies to SEZ units
  • ITC refund available - Exporters filing LUT can claim refund of accumulated input tax credit via Form GST RFD-01

What Is a Letter of Undertaking (LUT) Under GST?

Letter of Undertaking (LUT) is a self-declaration filed by a GST-registered exporter using Form RFD-11 on the GST portal, allowing the exporter to make zero-rated supplies of goods or services without paying Integrated GST at the time of supply. It is governed by Section 16(3) of the IGST Act, 2017 and Rule 96A of the CGST Rules, 2017.

Before the LUT simplification introduced through Circular No. 8/8/2017-GST dated October 4, 2017, exporters had to furnish a bond backed by a bank guarantee to export without IGST. The government replaced this requirement with a simple LUT for all eligible exporters, removing the financial burden of locking funds in bank guarantees. The current LUT framework was further clarified through Notification No. 37/2017-Central Tax dated October 4, 2017, which expanded LUT eligibility to all registered persons except those prosecuted for tax evasion exceeding Rs 2.5 crore.

The practical benefit of LUT is straightforward: without it, an exporter of services paying 18% IGST on a Rs 50 lakh export invoice would need to pay Rs 9 lakh upfront and then wait 30 to 60 days for a refund. With LUT, the same exporter pays Rs 0 in IGST and retains that Rs 9 lakh as working capital. For service exporters operating on thin margins or with multiple invoices per month, LUT is not optional; it is a business necessity.

LUT for exports is governed by Section 16(3) of the IGST Act, 2017 read with Rule 96A of the CGST Rules, 2017. Administered by the Central Board of Indirect Taxes and Customs (CBIC) through the GST Portal (gst.gov.in).

Who Can File LUT Under GST: Eligibility Criteria

LUT eligibility under GST is intentionally broad. The government designed the framework to make LUT accessible to the maximum number of exporters, keeping the bond requirement only for a narrow category of disqualified persons.

Eligible Persons

Any person registered under GST who makes or intends to make zero-rated supplies can file LUT. This includes:

  • IT and software companies exporting software development, SaaS products, or technology consulting services to overseas clients
  • Freelancers and independent consultants providing services to clients located outside India (content writing, design, marketing, legal advisory)
  • BPO, KPO, and outsourcing companies delivering back-office, data processing, or knowledge services to foreign entities
  • Manufacturers and traders exporting physical goods from Indian ports
  • Merchant exporters who purchase goods domestically and export them
  • Suppliers to SEZ units or developers making supplies into Special Economic Zones
  • Engineering and professional service firms providing architectural, engineering, or consulting services to foreign projects

Disqualified Persons (Must File Bond Instead)

Only one category of registered persons cannot file LUT: those who have been prosecuted under the CGST Act or IGST Act for any offence where the tax amount involved exceeds Rs 2.5 crore. Note that this refers to prosecution (criminal proceedings), not mere investigation or audit. A show cause notice, demand order, or pending appeal does not disqualify you from filing LUT. Only a formal prosecution initiated by the department triggers disqualification.

Based on our experience helping 10,000+ businesses with GST compliance, fewer than 0.1% of service exporters are disqualified from filing LUT. If your business has a clean compliance record and you have not been prosecuted for tax evasion, you are almost certainly eligible. Do not confuse a GST notice or audit with prosecution; they are entirely different proceedings.

Understanding Zero-Rated Supply Under GST

Zero-rated supply under Section 16 of the IGST Act, 2017 means a supply of goods or services on which the GST rate is 0%, but the supplier retains full eligibility to claim input tax credit (ITC) on all inputs and input services used for making that supply. This is fundamentally different from an exempt supply, where GST is also 0% but no ITC can be claimed.

Two Categories of Zero-Rated Supply

CategoryDefinitionExample
Export of goods or services Supply of goods taken out of India or services provided to a recipient located outside India Indian IT company providing software development to a US client
Supply to SEZ developer or unit Supply of goods or services to a business operating within a notified Special Economic Zone Catering company supplying food to an SEZ unit in Noida

Two Options for Making Zero-Rated Supplies

Under Section 16(3) of the IGST Act, a registered person making zero-rated supplies has two options:

  1. Option 1: Export under LUT/Bond without paying IGST - File LUT (or bond), make the supply at 0% IGST, and claim a refund of accumulated ITC using Form GST RFD-01
  2. Option 2: Export with IGST payment - Charge and pay IGST at the applicable rate on the export invoice, and claim a refund of the IGST paid. For goods, the refund is automatic via ICEGATE; for services, file Form GST RFD-01

Option 1 (LUT) is preferred by most exporters because it avoids the cash outflow of paying IGST upfront. For a service exporter with monthly billing of Rs 25 lakh, Option 2 would mean paying Rs 4.5 lakh in IGST every month and waiting 30 to 60 days for each refund. Over a full year, this locks up Rs 13.5 lakh to Rs 27 lakh in working capital at any given time.

If you file LUT but fail to complete the export or receive payment within the prescribed timeline, you must pay IGST along with 18% interest per annum from the invoice date. For services, payment must be received within 9 months under FEMA (extendable to 15 months with RBI approval). Track every invoice's payment status carefully.

LUT vs Bond Under GST: When Each Applies

Both LUT and bond serve the same purpose: enabling zero-rated supplies without IGST payment. The critical difference lies in cost, complexity, and who must use which option.

FeatureLetter of Undertaking (LUT)Bond with Bank Guarantee
Who must use All eligible exporters (default option) Only persons prosecuted for tax evasion exceeding Rs 2.5 crore
Cost Rs 0 (free to file) Bank guarantee fee: 1% to 3% of guaranteed amount annually
Filing mode 100% online on GST portal Physical submission to jurisdictional GST officer
Bank guarantee Not required 15% to 100% of estimated tax liability
Processing time 1 to 3 working days 7 to 15 working days
Renewal Annual (file fresh LUT each FY) As per bond terms (usually annual)
Security deposit None Cash or fixed deposit may be required
Complexity Simple self-declaration form Bond deed, bank guarantee, officer verification

Based on our experience assisting exporters with GST compliance, 99% of service exporters qualify for LUT and should never need to file a bond. If your tax consultant suggests filing a bond instead of LUT without citing a specific prosecution, seek a second opinion. The bond option exists only for a very narrow category of disqualified taxpayers.

Documents Required for Filing LUT (Form RFD-11)

One of the biggest advantages of the LUT process is minimal documentation. Unlike the bond procedure that requires bank guarantees and physical submissions, LUT filing needs only digital documents and self-declarations.

Mandatory Documents

  1. Active GSTIN - Your GST registration must be in active status. Suspended, cancelled, or surrendered registrations cannot file LUT
  2. PAN card - PAN of the registered entity (company, LLP, proprietor, or partnership firm)
  3. Self-declaration - Confirming that the applicant has not been prosecuted under CGST or IGST Act for tax evasion exceeding Rs 2.5 crore. This is a checkbox declaration within the online form
  4. Witness details - Full name, residential address, and occupation of two independent and reliable witnesses. The witnesses do not need to be physically present or sign any document
  5. Authorised signatory details - The signatory must be a working partner, managing director, compliance professional, proprietor, or a person authorised by the board of directors

Optional Documents

  1. Previous year LUT copy - If renewing LUT for a new financial year, uploading the previous LUT helps demonstrate continuity. Accepted formats: PDF or JPEG, maximum 2 MB
  2. Board resolution - Authorising a specific person to sign and file LUT on behalf of the company (required if the signatory is not a director or partner)

All documents for LUT are submitted digitally through the GST portal. You do not need to visit the GST office, submit physical copies, or get documents notarised. The entire process from start to finish happens online at gst.gov.in.

Step-by-Step Process to File LUT on the GST Portal

Filing LUT using Form RFD-11 is a straightforward online process that takes 15 to 20 minutes if you have all documents ready. Follow these 8 steps for a complete filing.

Step 1: Confirm Your Eligibility

Before starting the application, verify that your business meets the LUT eligibility criteria. Your GSTIN must be in active status (check under Services, then Registration, then View Registration on the GST portal). Confirm that your entity has not been prosecuted under the CGST or IGST Act for tax evasion exceeding Rs 2.5 crore. If you have received a show cause notice or demand order but no prosecution has been initiated, you remain eligible for LUT.

Step 2: Gather Required Information

Prepare the following before logging in: details of two independent witnesses (name, address, occupation), a scanned copy of your previous LUT (if renewing), and the name of your authorised signatory. Keep your DSC dongle connected to your computer or have your registered mobile phone ready for EVC verification.

Using employees or business partners as witnesses is technically not prohibited, but using truly independent persons (neighbours, family friends, or fellow business owners) is safer. Tax officers occasionally scrutinise witness independence during verification. Avoid using the same witnesses year after year if possible.

Step 3: Log In to the GST Portal

Visit gst.gov.in and click the Login button. Enter your registered username (typically your GSTIN or a chosen username), password, and complete the CAPTCHA. After successful login, you land on your dashboard.

Step 4: Navigate to the LUT Application

From the top menu, click Services, then select User Services from the dropdown. Click Furnish Letter of Undertaking (LUT). The system opens Form GST RFD-11 pre-populated with your GSTIN, legal name, and trade name.

Step 5: Select Financial Year and Upload Previous LUT

Select the financial year for which you are filing the LUT from the dropdown (for example, 2025-26 for the period April 2025 to March 2026). If you are renewing, click Choose File to upload a scanned copy of your previous year's LUT in PDF or JPEG format (maximum 2 MB). First-time applicants skip the upload step.

Step 6: Enter Witness Details and Declarations

Fill in the details of two independent witnesses in the designated fields. For each witness, provide: full name, complete residential address, and occupation. Check both declaration checkboxes confirming that you meet the conditions for furnishing LUT and that you have not been prosecuted for the disqualifying offence. Enter the place of filing (typically your registered office city).

Step 7: Select Signatory, Sign, and File

From the authorised signatory dropdown, select the person who will sign the form. This must be a director, partner, proprietor, compliance professional, or an authorised representative. Click File with DSC to sign using your Digital Signature Certificate, or click File with EVC to receive a one-time password on your registered mobile number and email. Enter the OTP to complete filing.

Step 8: Download Acknowledgement and ARN

After successful submission, the GST portal generates an Application Reference Number (ARN) and displays a confirmation message. The ARN is also sent to your registered email and mobile number. Click Download to save the acknowledgement PDF. The LUT is typically accepted within 1 to 3 working days. Once accepted, you can start making zero-rated supplies without IGST payment.

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Conditions You Must Meet After Filing LUT

Filing LUT is not a one-time action. You must continuously meet specific conditions throughout the financial year for your LUT to remain valid. Failure to comply triggers IGST liability with interest.

Export Completion Timelines

Type of Zero-Rated SupplyConditionTimelineConsequence of Non-Compliance
Export of goods Goods must leave India Within 3 months from invoice date Pay IGST + 18% interest from invoice date
Export of services Payment must be received in foreign exchange Within 9 months from invoice date (extendable to 15 months with RBI permission) Pay IGST + 18% interest from invoice date
Supply to SEZ Goods/services must be received by SEZ unit As per SEZ endorsement timeline Pay IGST + 18% interest from invoice date

GSTR-1 and GSTR-3B Reporting

All zero-rated supplies made under LUT must be correctly reported in your GST returns. In GSTR-1, report export invoices under Table 6A (exports with payment of tax) or Table 6A (exports without payment of tax, which applies when you have a valid LUT). In GSTR-3B, report zero-rated supplies in Table 3.1(b) for supplies made without payment of tax. Incorrect classification in returns can delay your ITC refund processing.

Record-Keeping Obligations

Maintain complete records of all export transactions including: export invoices with recipient details, FIRC (Foreign Inward Remittance Certificate) or bank credit advice for each payment received, shipping bills for goods exports, and contracts or purchase orders from foreign clients. These records must be preserved for 72 months (6 years) from the due date of the annual return for the relevant financial year, as prescribed under Section 36 of the CGST Act.

The most common compliance failure we see among service exporters is delayed payment receipt. If a client pays after the 9-month FEMA window, you owe IGST plus 18% interest even if you have a valid LUT. Set up a payment tracking system with automated alerts at 6 months, 8 months, and 9 months from each invoice date.

How to Renew LUT for a New Financial Year

LUT is valid for one financial year only. Every year, before April 1, you must file a fresh LUT for the upcoming financial year. The renewal process is identical to the initial filing process described above.

Renewal Timeline

  • Recommended - File the new LUT in the last week of March (between March 25 and March 31) for the upcoming financial year
  • Deadline - There is no formal deadline, but you cannot export without IGST payment until the new LUT is accepted. Any export made between April 1 and the date of LUT acceptance will require IGST payment
  • Grace period - The GST law does not provide any grace period. If your LUT lapses on March 31 and the new LUT is accepted on April 5, exports made on April 1 to April 4 are technically not covered

Renewal Checklist

  1. Verify your GSTIN is active and all returns are filed up to date
  2. Download and save a copy of the current year's LUT for upload
  3. Confirm witness details are current (update if witnesses have moved or changed occupation)
  4. Ensure your DSC is valid and not expired
  5. File the new LUT under Services, then User Services, then Furnish LUT on the GST portal
  6. Download the new acknowledgement and ARN

Based on our experience with thousands of annual LUT renewals, we recommend setting a calendar reminder for March 20 every year. Filing early gives you a buffer in case of any technical issues on the GST portal, which tends to experience heavy traffic in the last week of March during the financial year-end rush.

When LUT Gets Revoked: Causes and Consequences

The jurisdictional GST officer can revoke an accepted LUT if the exporter fails to meet the prescribed conditions. Revocation is a serious compliance event that immediately impacts your ability to export without IGST.

Grounds for LUT Revocation

  1. Failure to export goods within 3 months - If goods mentioned in export invoices are not shipped within 3 months from the invoice date
  2. Failure to receive payment for exported services - If foreign exchange payment is not received within the FEMA-prescribed timeline (9 months, extendable to 15 months)
  3. Non-payment of IGST liability upon violation - If the exporter fails to pay the IGST and interest demanded after a condition violation
  4. Prosecution initiated subsequently - If the exporter is prosecuted for tax evasion exceeding Rs 2.5 crore after filing LUT

Consequences of Revocation

Upon LUT revocation, the exporter must immediately:

  • Stop making zero-rated supplies without IGST payment
  • Pay IGST on all subsequent export supplies until a bond is furnished
  • Furnish a bond with bank guarantee to the jurisdictional officer to continue exporting without IGST
  • Pay the outstanding IGST liability with 18% interest for all supplies where conditions were violated

LUT revocation is uncommon for compliant exporters. In our practice, we have seen revocations primarily in cases where the exporter raised export invoices but never actually exported the goods (fraudulent ITC claims) or where payment was not received for over 15 months due to client insolvency. Genuine exporters who track payments and meet timelines face virtually zero risk of revocation.

Claiming ITC Refund After Filing LUT

One of the primary financial benefits of LUT is the ability to claim a refund of accumulated Input Tax Credit (ITC). Since you do not pay IGST on exports, GST paid on domestic purchases (inputs, input services, and capital goods) accumulates as credit. This credit can be claimed as a cash refund.

ITC Refund Process

  1. File Form GST RFD-01 on the GST portal under Services, then Refunds, then Application for Refund
  2. Select refund type: Refund of ITC on account of exports without payment of tax
  3. Enter the period for which you are claiming the refund
  4. The system auto-calculates the refund amount using the formula in Rule 89(4) of CGST Rules: Refund = (Turnover of zero-rated supply / Adjusted total turnover) x Net ITC
  5. Upload a Statement of Invoices (export invoices for which refund is claimed)
  6. Submit with DSC or EVC

Refund Timeline

StageTimelineNotes
Filing RFD-01 Can be filed monthly or quarterly File after reporting exports in GSTR-1 and GSTR-3B
Provisional refund (90%) Within 7 days of filing As per Section 54(6) of CGST Act (for eligible exporters)
Final refund (remaining 10%) Within 60 days of filing After verification by the refund processing officer
Credit to bank account 3 to 5 working days after sanction Refund is credited directly to the bank account linked with GSTIN

Based on our experience processing ITC refunds for export clients, the most common reason for refund rejection is a mismatch between GSTR-1 data and the RFD-01 statement. Always reconcile your export invoices in GSTR-1 Table 6A with your refund statement before filing. A single invoice number mismatch can delay the entire refund by 30 to 45 days.

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Five Conditions for Export of Services Under GST

For your supply to qualify as an export of services under GST and benefit from LUT, all five conditions specified in Section 2(6) of the IGST Act, 2017 must be satisfied simultaneously. Failing even one condition means the supply is not an export and IGST must be charged.

ConditionRequirementPractical Check
1. Supplier location Supplier must be located in India Your GST registration must be Indian
2. Recipient location Recipient must be located outside India Client's registered address must be outside India
3. Place of supply Place of supply must be outside India For services, generally determined by recipient's location
4. Payment Payment must be received in convertible foreign exchange or Indian Rupees (where RBI permits) Payment must come from outside India via SWIFT, wire transfer, or PayPal
5. Establishment check Supplier and recipient must not be establishments of the same person Your Indian entity and the foreign client must not be branches of the same company

If your Indian company provides services to its own branch office, subsidiary, or parent company located outside India, Condition 5 may fail. The term "merely establishments of a distinct person" under Section 2(6)(v) requires careful legal analysis. Services provided to a related foreign entity may or may not qualify as exports depending on the ownership structure. Consult a GST expert before filing LUT for inter-company cross-border services.

State-Wise Applicability and Special Cases

LUT under GST is a central government provision governed by the IGST Act and CGST Rules. It applies uniformly across all states and union territories. However, exporters operating from multiple states face specific compliance requirements that differ from single-state businesses.

Multiple GSTIN Scenario

If your business has GST registrations in multiple states (for example, a technology company with offices in Karnataka, Maharashtra, and Delhi), you must file a separate LUT for each GSTIN from which you make export supplies. A LUT filed under your Karnataka GSTIN does not cover exports invoiced from your Maharashtra registration. Each state registration is treated independently for LUT purposes. Plan your LUT filing schedule to ensure all GSTINs are covered before April 1 of each financial year.

SEZ Supplies vs Regular Exports

Both SEZ supplies and regular exports qualify as zero-rated supplies under Section 16 of the IGST Act. A single LUT covers both types. However, the documentation and endorsement requirements differ. For SEZ supplies, you need an endorsed Bill of Entry from the SEZ unit confirming receipt of goods or services. For regular exports of goods, you need a shipping bill filed with Customs. For export of services, the key documentation is the FIRC confirming receipt of foreign exchange payment.

Deemed Exports Are Not Covered by LUT

Deemed exports under Section 147 of the CGST Act are fundamentally different from zero-rated supplies. Supplies to Export Oriented Units (EOUs), supplies against Advance Authorisation, and supplies to projects funded by multilateral agencies qualify as deemed exports. These supplies attract normal GST (not zero-rated), and the recipient claims a refund. LUT does not apply to deemed exports. If you supply to an EOU, charge GST at the normal rate and the EOU claims a refund.

LUT for E-commerce and Digital Service Exports

The rise of cross-border digital services has created a significant category of service exporters who use LUT. Indian businesses selling digital products, SaaS subscriptions, and online services to foreign customers need to understand how LUT interacts with e-commerce payment structures.

Payment Through International Gateways

Many service exporters receive payments through platforms like PayPal, Stripe, Wise (formerly TransferWise), or Payoneer. For LUT purposes, the critical requirement is that the payment must be received in convertible foreign exchange. When PayPal or Stripe settles your payment in INR after converting from the foreign currency, the transaction still qualifies as foreign exchange receipt, provided the underlying payment was made in foreign currency by the overseas client. Maintain bank statements and PayPal/Stripe settlement reports as proof of foreign exchange receipt.

Marketplace-Based Exports

If you sell software, templates, or digital products through international marketplaces (Envato, Gumroad, App Store, Google Play), the marketplace typically collects payment from the end customer and remits your share. The marketplace's payment to you is the export consideration. Ensure the marketplace settlement is documented as foreign exchange receipt. For app developers, monthly settlements from Apple or Google serve as the FIRC equivalent. Keep all settlement statements organised by financial year for GSTR-1 reconciliation.

Subscription-Based SaaS Exports

SaaS companies invoicing monthly or annual subscriptions to foreign clients should issue export invoices for each billing cycle. Each invoice is a separate zero-rated supply under LUT. For annual subscriptions paid upfront, the entire amount is a single zero-rated supply at the invoice date. Track the FEMA payment timeline from each invoice date individually. A SaaS company with 50 international clients issuing monthly invoices generates 600 export invoices per year, all of which must be reported in GSTR-1 Table 6A.

Comparison: LUT Filing vs IGST Refund Route

Understanding the financial impact of choosing LUT over the IGST refund route helps exporters make an informed decision. While both routes achieve the same end result (zero effective tax on exports), the cash flow implications are dramatically different.

ParameterLUT Route (Export Without IGST)IGST Refund Route (Export With IGST)
Upfront cash outflow Rs 0 IGST paid 18% IGST on every export invoice (for services)
Working capital blocked None 30 to 60 days per refund cycle
Refund type ITC refund via RFD-01 IGST refund (auto for goods via ICEGATE, RFD-01 for services)
Refund processing time 7 days (provisional 90%) + 60 days (final) 30 to 60 days for services
Cash flow impact (Rs 1 crore annual exports) Rs 0 blocked Rs 9 lakh to Rs 18 lakh blocked at any time
Compliance effort File LUT annually + RFD-01 for ITC refund Pay IGST monthly + claim refund monthly
Risk Must meet export/payment timelines; else pay IGST + 18% interest Refund delays; higher working capital requirement
Best for Regular exporters, service companies, SaaS businesses Occasional exporters, businesses with surplus cash flow

For a service exporter billing Rs 50 lakh per quarter to overseas clients, the LUT route saves approximately Rs 4.5 lakh in IGST cash outflow per quarter. Over a full financial year, this translates to Rs 18 lakh in working capital that remains available for business operations instead of being locked in IGST refund cycles. For startups and small businesses where cash flow is critical, LUT is the clear winner.

The IGST refund route can be advantageous in one specific scenario: when your business has minimal domestic input tax credit. If you are a pure service exporter with very low GST on inputs (no office rent, minimal software purchases), the ITC refund amount under LUT route may be negligible. In such cases, paying IGST and claiming an IGST refund is simpler because the refund equals the full IGST paid, with no formula-based calculation required.

Common Mistakes When Filing LUT and How to Avoid Them

While the LUT filing process is simple, exporters frequently make errors that lead to compliance issues, delayed refunds, or inadvertent IGST liability. Here are the most common mistakes and their solutions.

Mistake 1: Not Filing LUT Before Starting Exports

New exporters sometimes start exporting services first and then file LUT, assuming it can be applied retroactively. LUT is prospective, not retrospective. Supplies made before LUT acceptance are not covered. Always file and get LUT accepted before issuing your first export invoice for the financial year.

Mistake 2: Forgetting to Renew Before April 1

This is the single most common mistake. Exporters who filed LUT in the previous year assume it carries over automatically. It does not. A fresh LUT must be filed for each financial year. Set a March 20 calendar reminder and file before the year-end rush.

Mistake 3: Incorrect Invoice Classification in GSTR-1

Export invoices must be reported in Table 6A of GSTR-1 with the correct flag: "Without Payment of Tax" for supplies under LUT. If you accidentally select "With Payment of Tax," the system expects you to have paid IGST, creating a mismatch that delays ITC refund processing. Always double-check the IGST flag before filing GSTR-1.

Mistake 4: Not Tracking Payment Receipt Timelines

For service exports, the FEMA timeline for receiving payment is 9 months from the invoice date. If payment is not received within this period and you have not obtained an RBI extension, IGST plus 18% interest becomes payable. Maintain a spreadsheet or use accounting software that flags invoices approaching the 9-month mark.

Mistake 5: Using Ineligible Persons as Signatories

The authorised signatory for LUT must be a working partner, managing director, compliance professional, proprietor, or a person specifically authorised by the board. An accountant, office manager, or consultant without formal board authorisation cannot sign the LUT. Ensure the signatory is properly registered on the GST portal under the authorised signatory list.

LUT for Specific Business Types

Different types of businesses have different practical considerations when filing and using LUT for export services. Here is a breakdown by business type.

IT and Software Companies

Indian IT companies are the largest users of LUT. Whether you provide custom software development, SaaS products, managed IT services, or technology consulting, LUT is essential for cash flow management. Ensure your service agreements clearly specify that the recipient is located outside India and that payment is received in foreign exchange. For SaaS companies receiving payments via Stripe, PayPal, or Razorpay International, confirm that the payment settlement happens in convertible foreign exchange to satisfy the export condition.

Freelancers and Sole Proprietors

Individual freelancers registered under GST can file LUT. If your annual turnover from export services exceeds Rs 20 lakh (the GST registration threshold for services), you must register for GST and then file LUT. Many freelancers on platforms like Upwork, Fiverr, and Toptal use LUT to export services without IGST. The filing process is identical; the only difference is that the proprietor is both the applicant and the authorised signatory.

Startups and Small Businesses

If you are a startup providing services to international clients, file LUT immediately after obtaining your GST registration. Do not wait until you have accumulated significant export revenue. LUT is free to file and valid for the entire financial year. Even if you export only one service in the year, having LUT in place protects you from IGST liability on that transaction.

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GST LUT Cost in 2026

Filing LUT under GST is one of the few compliance processes in India that is entirely free from the government side. Here is the complete cost breakdown.

ComponentAmount (Rs)Notes
Government fee for LUT filing 0 No fee charged by GST portal
Annual LUT renewal fee 0 Renewal is also free every financial year
DSC (if needed for signing) 800 to 2,000 One-time; valid for 2 years. Not needed if using EVC
Professional fee (Professional/GST practitioner) 500 to 2,000 Optional; if you hire professional assistance
Total (self-filing) 0 Free if you already have a DSC and file yourself
Total (with professional help) 500 to 2,000 One-time per financial year

Compare this with the bond option, where the bank guarantee fee alone costs 1% to 3% of the guaranteed amount annually. For an exporter with Rs 1 crore in annual exports, a bond with 15% bank guarantee would cost Rs 15,000 to Rs 45,000 per year in bank charges. LUT eliminates this cost entirely.

Export of Services: FEMA Compliance and Payment Timelines

Filing LUT handles the GST side of export compliance, but service exporters must also comply with the Foreign Exchange Management Act (FEMA), 1999 regarding payment receipt. FEMA compliance is monitored by the Reserve Bank of India (RBI) and affects your LUT validity.

Payment Receipt Timelines Under FEMA

ScenarioTimelineGoverning Rule
Standard export of services 9 months from invoice date FEMA (Current Account Transactions) Rules, 2000
Extension with RBI approval Up to 15 months from invoice date RBI Master Direction on Export of Goods and Services
Write-off of unrealised export proceeds Requires RBI/AD bank approval Limited to 5% of total export proceeds for the year

Impact on LUT

If payment for exported services is not received within the FEMA timeline, two things happen simultaneously: the RBI may flag the non-receipt, and the GST department considers the LUT condition violated. You must then pay IGST at 18% (for most services) along with interest at 18% per annum from the invoice date to the date of actual payment. This dual compliance requirement makes payment tracking absolutely critical for service exporters.

LUT and GST Annual Return: Reconciliation

All exports made under LUT during the financial year must be reconciled in your GST Annual Return (GSTR-9) and, where applicable, the Reconciliation Statement (GSTR-9C). Proper reconciliation ensures that your export data across GSTR-1 (monthly/quarterly), GSTR-3B (summary), and GSTR-9 (annual) matches perfectly.

Key Reconciliation Points

  • Table 6A of GSTR-1 - Total export invoices (without IGST) must match the GSTR-9 annual totals
  • Table 3.1(b) of GSTR-3B - Zero-rated supplies without payment of tax must match GSTR-1 data
  • GSTR-9 Table 4 - Verify that the total zero-rated supply figure matches your books of accounts
  • GSTR-9C - If applicable (turnover above Rs 5 crore), the auditor will verify export turnover against FIRC/bank certificates
  • ITC refund claims - Ensure all ITC refunds claimed via RFD-01 during the year are reflected correctly in the annual return

From our experience filing annual returns for export-heavy businesses, the most effective approach is to maintain a monthly export reconciliation spreadsheet that tracks: invoice number, invoice date, amount in foreign currency, amount in INR, GSTR-1 table reference, payment receipt date, FIRC number, and RFD-01 claim status. This single document serves as the master reference for annual return preparation and audit responses.

Frequently Encountered Issues and Resolutions

Issue 1: GST Portal Shows "LUT Already Filed for This FY"

This error appears when a LUT has already been filed and accepted for the selected financial year. You cannot file a second LUT for the same FY. If you need to update witness details or correct information, you must contact your jurisdictional GST officer directly. The portal does not allow amendments to an accepted LUT.

Issue 2: DSC Validation Failure During Signing

DSC errors typically occur when: the DSC has expired (check validity dates), the DSC is not registered on the GST portal (register under My Profile, then Register/Update DSC), or the Java/emSigner utility is not installed or updated. Install the latest version of the emSigner tool from the GST portal's download section and restart your browser before attempting to sign again.

Issue 3: ARN Generated But LUT Not Accepted for Weeks

If your LUT shows "Submitted" status for more than 7 working days without moving to "Accepted," the jurisdictional officer may have raised an internal query. Contact your jurisdictional GST officer's office with your ARN number. In most cases, the delay is due to administrative backlog, and a follow-up resolves it within 2 to 3 days.

Issue 4: Exporter Made Supplies Before LUT Acceptance

If you issued export invoices before LUT acceptance (for example, on April 1 when LUT was filed on April 3 and accepted on April 5), technically those supplies are not covered by LUT. The safest approach is to report those specific invoices as exports with IGST payment, pay the IGST, and claim a refund. Once LUT is accepted, subsequent invoices are covered.

Penalties, Interest, and Compliance Risks for LUT Holders

While LUT itself has no government fee, violations of LUT conditions carry significant financial consequences. Understanding the penalty structure helps exporters maintain strict compliance and avoid unnecessary costs.

Interest on Delayed Export Completion

If goods are not exported within 3 months from the invoice date or service export payment is not received within the FEMA-prescribed 9-month window, the exporter must pay IGST at the applicable rate along with interest at 18% per annum under Section 50 of the CGST Act. The interest is calculated from the date of the original invoice until the date of actual IGST payment. For a service exporter with an outstanding invoice of Rs 25 lakh where IGST payment is delayed by 6 months beyond the deadline, the interest alone amounts to approximately Rs 2.25 lakh (18% of Rs 4.5 lakh IGST for 6 months). This makes payment tracking a non-negotiable compliance activity for every LUT holder.

Penalty for Incorrect GSTR-1 Reporting

If export invoices are incorrectly classified in GSTR-1 (for example, reporting exports without IGST as exports with IGST, or vice versa), the GST officer can issue a notice under Section 73 of the CGST Act for short payment of tax. The penalty for genuine errors is typically 10% of the tax due or Rs 10,000, whichever is higher. For deliberate misreporting, the penalty under Section 74 can go up to 100% of the tax due. Always verify the IGST flag in Table 6A before filing each month's GSTR-1.

Late Filing of ITC Refund Claims

ITC refund applications under Form GST RFD-01 must be filed within 2 years from the relevant date as defined in the Explanation to Section 54 of the CGST Act. For exports without payment of tax (LUT route), the relevant date is the end of the financial year in which the export was made. Missing this deadline means you permanently lose the ability to claim the ITC refund for that period. A service exporter with Rs 5 lakh in accumulated ITC who misses the 2-year deadline loses that entire amount. File refund claims quarterly or at least biannually to avoid this risk.

Annual Compliance Calendar for LUT Holders

MonthCompliance ActionFormConsequence of Non-Compliance
Every month (by 11th) File GSTR-1 with export invoices in Table 6A GSTR-1 Rs 50/day late fee per return (max Rs 5,000)
Every month (by 20th) File GSTR-3B with zero-rated supply data GSTR-3B Rs 50/day late fee + 18% interest on tax due
Quarterly (recommended) File ITC refund application RFD-01 No penalty, but cash flow delayed
March (before 31st) File fresh LUT for new financial year RFD-11 Cannot export without IGST until new LUT is accepted
December 31 File GST Annual Return GSTR-9 Rs 200/day late fee (max 0.5% of turnover)
Ongoing Track FEMA payment receipt (9-month window) N/A IGST + 18% interest if payment not received

Summary

Filing a Letter of Undertaking (LUT) under GST using Form RFD-11 is a free, fully online process that every service exporter in India should complete before making zero-rated supplies. The process takes 15 to 20 minutes, costs nothing, and the acceptance typically arrives within 1 to 3 working days. LUT must be renewed annually before April 1. The eligibility criteria are broad, covering all GST-registered exporters except those prosecuted for tax evasion exceeding Rs 2.5 crore.

After filing LUT, track payment receipt timelines rigorously to stay within the FEMA-prescribed 9-month window for service exports. Report all export invoices correctly in GSTR-1 Table 6A with the "Without Payment of Tax" flag, and reconcile with GSTR-3B Table 3.1(b) every month. File ITC refund claims using Form GST RFD-01 quarterly to recover accumulated input tax credit and maintain healthy cash flow. Maintain complete documentation, including export invoices, contracts, FIRCs, and bank credit advices, for a minimum of 6 years as prescribed under Section 36 of the CGST Act.

For companies with multiple state registrations, file a separate LUT for each GSTIN. For SaaS companies and digital service exporters receiving payments through PayPal, Stripe, or other international gateways, maintain settlement reports as proof of foreign exchange receipt. LUT is the most cash-flow-efficient method for making zero-rated supplies, saving exporters from blocking working capital in IGST refund cycles.

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Frequently Asked Questions

What is a Letter of Undertaking (LUT) under GST?
A Letter of Undertaking (LUT) is a declaration filed by a registered exporter under GST using Form RFD-11 on the GST portal. It allows the exporter to supply goods or services to foreign buyers or Special Economic Zones (SEZs) without paying Integrated GST (IGST) upfront. LUT is governed by Section 16(3) of the IGST Act, 2017 and Rule 96A of the CGST Rules, 2017.
Who is eligible to file LUT under GST?
Any registered person under GST who intends to make zero-rated supplies (exports or supplies to SEZs) without payment of IGST is eligible to file LUT. The only disqualification is if the person has been prosecuted under the CGST Act or IGST Act for tax evasion where the amount involved exceeds Rs 2.5 crore. All other registered exporters, including service exporters, can file LUT.
What is Form GST RFD-11?
Form GST RFD-11 is the prescribed form for furnishing a Letter of Undertaking (LUT) on the GST portal. It requires details of the registered person, the financial year, a self-declaration confirming eligibility, and information about two independent witnesses. The form is filed online at gst.gov.in under Services, then User Services, then Furnish Letter of Undertaking (LUT).
Is there any government fee for filing LUT under GST?
No, there is zero government fee for filing a Letter of Undertaking (LUT) under GST. Form RFD-11 can be submitted on the GST portal at no cost. The entire process is online and free of charge. However, if you engage a Tax Professional or GST practitioner for assistance, their professional fees typically range from Rs 500 to Rs 2,000.
What is the validity period of a GST LUT?
A GST LUT filed using Form RFD-11 is valid for one financial year, from April 1 to March 31. Exporters must file a fresh LUT before the start of every new financial year to continue exporting without IGST payment. If filed mid-year, the LUT covers the remaining period until March 31. There is no prorated validity.
What happens if I do not renew my LUT before April 1?
If you fail to file a fresh LUT before April 1 of the new financial year, you cannot export without paying IGST until the new LUT is accepted. Any exports made without a valid LUT will be treated as regular taxable supplies, and you will be liable to pay IGST at the applicable rate. File the renewal in March itself to avoid disruption.
What is the difference between LUT and bond under GST?
A LUT is a free self-declaration filed online on the GST portal without any bank guarantee. A bond requires a bank guarantee of 15% to 100% of tax liability and physical submission to the GST officer. LUT is the default for all eligible exporters. Bond is mandatory only when the exporter is disqualified due to prosecution for tax evasion exceeding Rs 2.5 crore.
Can a service exporter file LUT under GST?
Yes, service exporters can file LUT under GST. LUT is applicable to both export of goods and export of services. IT companies, software firms, freelancers, consultants, BPO and KPO businesses, and any entity providing services to clients outside India can file LUT to export services without paying IGST. The service must qualify as an export under Section 2(6) of the IGST Act, 2017.
What documents are required to file LUT on the GST portal?
Filing LUT on the GST portal requires: an active GSTIN, PAN card of the entity, previous year LUT copy (if renewing), self-declaration of eligibility, and details of two independent witnesses (name, address, occupation). No physical documents need to be submitted to the tax office. A DSC or EVC is required for signing.
How long does it take for LUT to be accepted on the GST portal?
LUT acceptance on the GST portal typically takes 1 to 3 working days after submission. In most cases, the system auto-approves the application within 24 hours. The GST portal generates an Application Reference Number (ARN) immediately upon filing. If the jurisdictional officer raises any query, acceptance may take up to 7 working days.
What is a zero-rated supply under GST?
Zero-rated supply under GST means a supply on which no GST is charged but the supplier retains full input tax credit (ITC) eligibility. Under Section 16 of the IGST Act, 2017, two categories qualify: export of goods or services outside India, and supply to a Special Economic Zone (SEZ) developer or unit. Unlike exempt supply, zero-rated status allows ITC refund claims.
Can I claim input tax credit (ITC) after filing LUT?
Yes, you can claim refund of accumulated input tax credit (ITC) after filing LUT and making zero-rated supplies without IGST payment. File a refund application using Form GST RFD-01 on the GST portal. The refund is calculated based on the formula in Rule 89(4) of the CGST Rules. The refund is typically processed within 60 days of filing.
What happens if export is not completed within the prescribed time after filing LUT?
If you fail to export goods within 3 months or fail to receive export payment for services within the time prescribed under FEMA (currently 9 months from invoice date, extendable to 15 months with RBI approval), the LUT conditions are considered violated. You must then pay the applicable IGST along with interest at 18% per annum from the date of invoice until the date of payment.
When does LUT get revoked or cancelled under GST?
LUT can be revoked if the exporter fails to meet export conditions, specifically: non-receipt of export proceeds within the prescribed FEMA timeline, failure to export goods after generating an export invoice, or if the exporter is subsequently prosecuted for tax evasion exceeding Rs 2.5 crore. Upon revocation, the exporter must furnish a bond with bank guarantee to continue exporting without IGST.
Is LUT required for deemed exports under GST?
No, LUT is not required for deemed exports. Deemed exports under Section 147 of the CGST Act (such as supplies to Export Oriented Units or supplies against Advance Authorisation) are not zero-rated supplies. They are taxable supplies where the supplier charges GST and the recipient can claim a refund. LUT applies only to actual exports and supplies to SEZs.
Can a composition scheme dealer file LUT under GST?
No, a composition scheme dealer cannot file LUT under GST. Section 10(1) of the CGST Act prohibits composition taxpayers from making inter-state supplies, which includes exports. To export goods or services, a business must first migrate from composition to the regular GST scheme and then file LUT. The migration can be done at the beginning of any financial year.
What is the role of witnesses in the LUT application?
The LUT application (Form RFD-11) requires details of two independent and reliable witnesses. These witnesses essentially vouch for the genuineness of the exporter. You must provide each witness's full name, residential address, and occupation. The witnesses do not need to be physically present or sign any document. Their role is a formal requirement carried forward from the erstwhile Central Excise LUT procedure.
Can I file LUT for supplies to Special Economic Zones (SEZs)?
Yes, LUT covers supplies to SEZs. Under Section 16(1) of the IGST Act, both exports outside India and supplies to SEZ developers or units qualify as zero-rated supplies. By filing LUT, you can supply goods or services to an SEZ without charging IGST. The SEZ unit receives the supply tax-free, and you can claim a refund of accumulated ITC.
How do I check the status of my LUT application on the GST portal?
To check LUT status, log in to gst.gov.in, navigate to Services, then User Services, then View My Submitted LUTs. The portal displays the status as Submitted, Accepted, or Rejected along with the ARN and date. You can also check under Services, then User Services, then My Applications, and filter by application type LUT.
What is the penalty for exporting without a valid LUT?
If you export without a valid LUT, the supply is treated as a regular taxable supply rather than a zero-rated supply. You become liable to pay IGST at the applicable rate (typically 18% for services) along with interest at 18% per annum calculated from the original due date. The jurisdictional officer can also initiate recovery proceedings under Section 73 or 74 of the CGST Act.
Can a freelancer or individual service provider file LUT?
Yes, a freelancer registered under GST can file LUT to export services without paying IGST. Freelance software developers, designers, writers, consultants, and digital marketers who provide services to clients outside India regularly use LUT. The freelancer must hold an active GSTIN and the services must meet the definition of export under Section 2(6) of the IGST Act, 2017.
What are the conditions for a supply to qualify as export of services under GST?
Under Section 2(6) of the IGST Act, all five conditions must be met simultaneously: the supplier must be in India, the recipient must be outside India, the place of supply must be outside India, payment must be in convertible foreign exchange (or INR where RBI permits), and the supplier and recipient must not be establishments of the same person.
Is LUT applicable for export of goods as well?
Yes, LUT applies to both export of goods and export of services. Manufacturers, traders, and merchant exporters who export goods from India can file LUT to clear shipments without paying IGST at the port. For goods, the exporter must file a shipping bill with customs and ensure the goods leave India within 3 months from the date of the invoice.
What is the difference between zero-rated supply and exempt supply under GST?
Zero-rated supply (exports and SEZ supplies) attracts 0% GST and the supplier retains full input tax credit eligibility. Exempt supply (healthcare, education, unprocessed food) also attracts 0% GST but the supplier cannot claim ITC on inputs used for exempt supplies. For exporters, zero-rated classification is more beneficial because accumulated ITC can be claimed as a refund.
How is LUT different from a Letter of Credit (LC)?
A LUT under GST is a self-declaration filed with the tax authority to export without paying IGST. It involves no bank and no financial commitment. A Letter of Credit (LC) is a banking instrument where a bank guarantees payment to the exporter on behalf of the importer. LUT is a tax compliance document; LC is a trade finance instrument used for payment security.
Can I file LUT if my GST registration is under suspension?
No, you cannot file LUT if your GST registration is suspended. A suspended GSTIN indicates that cancellation proceedings are underway, and the taxpayer's ability to make supplies is restricted. You must first get the suspension revoked by responding to the show cause notice or applying for revocation of cancellation. Only an active GSTIN can file LUT.
What is the IGST refund process for exporters who pay IGST instead of filing LUT?
Exporters who choose to pay IGST on exports can claim a refund of the IGST paid. For goods, the refund is processed automatically through the ICEGATE system based on shipping bill data matched with GSTR-1. For services, file Form GST RFD-01 on the GST portal. The refund is typically credited within 30 to 60 days. Filing LUT avoids this cash flow delay entirely.
Do I need a separate LUT for each branch or GSTIN?
Yes, LUT must be filed separately for each GSTIN. If your business has registrations in multiple states (each with a different GSTIN), you must file a separate LUT for each GSTIN from which you intend to make zero-rated supplies. A single LUT filed under one GSTIN does not cover exports made from another state's registration.
What is the export obligation timeline under LUT?
Under LUT, goods must leave India within 3 months from the date of the export invoice. For services, payment must be received in convertible foreign exchange within the timeline prescribed by the RBI under FEMA, which is currently 9 months from the date of invoice, extendable to 15 months with RBI permission. Failure to meet these timelines triggers IGST liability with 18% interest.
Can a startup registered under Startup India file LUT for export services?
Yes, a Startup India registered entity can file LUT for exporting services, provided it holds an active GSTIN. There is no separate LUT procedure for startups. The process and eligibility criteria are identical. Many Indian SaaS startups, app development companies, and IT service firms use LUT to export software services to global clients without blocking working capital on IGST.
What should I do if my LUT application is rejected?
If your LUT is rejected, the GST portal displays the reason for rejection in your application status. Common reasons include incorrect witness details, incomplete self-declaration, or GSTIN status mismatch. Correct the errors and refile. There is no limit on the number of LUT applications you can file for the same financial year. Disqualified persons must furnish a bond instead.
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Dhanush Prabha is the Chief Technology Officer and Chief Marketing Officer at IncorpX, leading platform development, digital growth, and product strategy. With experience in full-stack development, scalable systems, SEO, and marketing automation, he focuses on building technology-driven solutions and practical business resources for startups and growing businesses. He writes on technology, entrepreneurship, business registration, and digital transformation.