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What is LUT in GST? A Complete Guide to GST Filing, Compliance & Exemptions

Priyanka
February 12, 2025
8 min read

Introduction:

The Goods and Services Tax (GST) has significantly transformed India’s tax structure, streamlining indirect taxation and ensuring compliance across industries. For businesses engaged in exports, navigating GST compliance can be challenging, especially when dealing with tax exemptions and refunds. One crucial provision that helps exporters is the Letter of Undertaking (LUT).

But what is LUT in GST, and why is it essential for businesses handling exports?

If you are an exporter or a supplier dealing with Special Economic Zones (SEZs), understanding GST filing in India rules and how LUT works is crucial. The LUT allows businesses to supply goods or services without paying Integrated Goods and Services Tax (IGST), thereby easing cash flow and simplifying tax compliance.

By the end of this guide, you will have a thorough understanding of GST exemptions, how to claim GST refunds, and how LUT can streamline your GST compliance efforts.

Also Read: How To Do GST Returns Filing | RegisterKaro

What is LUT in GST and Why is it Important for Exporters?

Understanding What is LUT in GST

A Letter of Undertaking (LUT) is an essential document that exporters file to supply goods and services without paying Integrated Goods and Services Tax (IGST). It acts as a self-declaration, assuring the government that the taxpayer will adhere to GST compliance regulations while conducting export transactions.

Under GST filing in India regulations, businesses that do not submit an LUT must first pay IGST on their exports and later claim GST refunds. This process can lead to significant cash flow issues, causing financial strain for exporters. However, by opting for a Letter of Undertaking, businesses can bypass the burden of upfront tax payments, ensuring smoother transactions and financial efficiency.

Why is LUT Important for Exporters?

  1. GST Exemptions on Exports
    The biggest advantage of filing an LUT in GST is that it allows businesses to export goods and services without paying IGST. This exemption helps exporters remain competitive in global markets without unnecessary tax burdens.
  2. Improved Cash Flow Management
    Without an LUT, businesses must pay IGST on exports and later apply for GST refunds. This process can take time, affecting liquidity. Filing an LUT eliminates this hassle and ensures better cash flow management.
  3. Faster Processing and Compliance
    Submitting an LUT under GST filing in India ensures a faster and more efficient export process. It reduces the need for frequent refund applications and simplifies GST compliance for exporters.
  4. Avoidance of Additional Documentation and Delays
    Exporters who fail to file an LUT in GST must go through lengthy refund procedures, requiring additional paperwork. Filing a Letter of Undertaking streamlines the process and helps businesses avoid unnecessary delays.
  5. Cost Savings for Export Businesses
    By leveraging GST exemptions, exporters can significantly reduce the financial burdens associated with tax payments, making their operations more cost-effective.

Who is Eligible to Apply for LUT in GST?

Eligibility Criteria for LUT Filing

The following businesses can file an LUT for GST exemptions on exports:

1. Exporters of Goods and Services

  • Businesses engaged in international trade can file an LUT to avoid paying IGST on exports.

2. Suppliers to Special Economic Zones (SEZs)

  • Companies supplying goods or services to SEZs can apply for LUT to claim GST exemptions.

3. Deemed Exporters

  1. Businesses engaged in deemed exports under GST laws can also avail of LUT benefits.

Who is NOT Eligible to File LUT?

  • Any business prosecuted for tax evasion exceeding ₹2.5 crores under GST or any other tax law is ineligible to apply for an LUT. In such cases, businesses must provide a bond instead of an LUT.

Benefits of Filing LUT in GST: Why Should Exporters Opt for It?

Filing an LUT provides multiple advantages, especially for businesses aiming for hassle-free GST compliance and smoother financial operations.

1. Avoidance of IGST Payment

  • Exporters can supply goods/services without paying IGST upfront, reducing financial strain.

2. Better Cash Flow Management

  • Businesses do not have to wait for GST refunds, allowing smoother cash flow and working capital management.

3. Simplified GST Compliance

  • Filing an LUT eliminates the complex refund procedures associated with GST, making tax compliance easier.

4. Faster Export Processing

  • Since exporters do not need to pay IGST, export clearances become faster, avoiding unnecessary delays.

5. Cost Savings on Financial Transactions

  • By avoiding IGST payments, businesses can save money on financial transactions and compliance-related paperwork.

How to File LUT in GST Online? (Step-by-Step Guide)

To streamline GST filing in India, businesses can file an LUT online using the official GST portal. Follow these steps for hassle-free filing:

Step 1: Log into the GST Portal

  • Visit official GST Portal
  • Enter your username, password, and captcha to log in.

Step 2: Navigate to the LUT Filing Section

  • Click on ‘Services’ > ‘User Services’ > ‘Furnish Letter of Undertaking (LUT)’.

Step 3: Fill in the LUT Form (GST RFD-11)

  • Select the financial year for which you are filing the LUT.
  • Enter business details, including authorized signatory details.
  • Upload the required documents (listed below).

Step 4: Sign and Submit the LUT Form

  • Review all details and confirm the declaration.
  • Use Electronic Signature (EVC) or Digital Signature Certificate (DSC) to submit the form.

Step 5: Download the Acknowledgment Receipt

  • After submission, download the acknowledgment as proof of LUT filing.

Documents Required for LUT Filing in GST

To successfully file an LUT, businesses must submit the following:

  • GST Registration Certificate
  • PAN Card of the Business Entity
  • Authorized Signatory’s Aadhaar Card
  • Letter of Undertaking (on Business Letterhead)
  • Import Export Code (IEC) for Exporters
  • Previous LUT (if applicable)
  • Bank Account Details

Difference Between LUT and Bond in GST: Which One to Choose?

FeatureLetter of Undertaking (LUT)Bond
PurposeExport without IGST paymentExport with IGST payment
EligibilityAvailable to all eligible exportersRequired for businesses ineligible for LUT
Financial ImpactNo IGST payment requiredIGST payment is required upfront
DocumentationSimple online filingRequires a bank guarantee and additional paperwork

Common Mistakes to Avoid When Filing LUT in GST

Some common mistakes one must avoid while filling LUT in GST are:

1. Incorrect Financial Year Selection

  • Always select the correct financial year when submitting the LUT.

2. Failure to Renew LUT Annually

  • LUT is valid for one financial year and must be renewed every year.

3. Using Expired LUT for Exports

  • If your LUT expires, your exports will not qualify for GST exemptions.

4. Incorrect Business Details

  • Ensure that the business name, GSTIN, and authorized signatory details match official records.

5. Not Keeping a Copy of LUT Approval

  • Always download and save the approved LUT for future reference.

Conclusion

Filing a Letter of Undertaking (LUT) under GST is a strategic decision for exporters, enabling them to avoid unnecessary IGST payments, benefit from GST exemptions, and maintain a healthy cash flow. Ensuring proper GST compliance allows businesses to expand their international trade operations without financial roadblocks, making the process more efficient and cost-effective. 

However, navigating GST regulations and LUT filing requirements can be complex, and even minor errors can lead to compliance issues or delays in claiming exemptions. Seeking expert assistance from tax professionals can help businesses file their LUT correctly, stay compliant with GST laws, and maximize their GST refunds and exemptions. 

Ready to streamline your compliance process? Reach out to trusted platforms like RegisterKaro and make your GST filing journey hassle-free. Let the experts handle the complexities while you focus on growing your business. Contact our support team at support@registerkaro.in today.

Frequently Asked Questions (FAQs)

1. What happens if I export goods without filing an LUT under GST?
If you export goods without submitting an LUT, you will be required to pay Integrated GST (IGST) at the time of export. You can claim a refund later, but this process may cause cash flow issues and delays in getting the refund amount. Filing an LUT in advance helps avoid such complications.

2. Can an exporter file an LUT if they have a pending GST refund from a previous financial year?
Yes, having a pending GST refund does not impact your eligibility to file an LUT. As long as you meet the eligibility criteria, you can file an LUT for the current financial year without any issues.

3. How long does it take for an LUT to be approved after submission on the GST portal?
Once submitted on the GST portal, the LUT is usually approved immediately or within a few hours to 3 working days, depending on the processing time of the GST department. You can check the approval status on the portal under the “LUT” section.

4. Can an LUT be used for domestic supplies within India?
No, LUT is exclusively meant for exporters supplying goods or services outside India or to Special Economic Zones (SEZs). For domestic supplies, GST must be charged as applicable.

5. Do I need to submit a fresh LUT every time I export goods?
No, once an LUT is filed, it is valid for an entire financial year. You do not need to submit a new LUT for every export transaction, but you must renew it annually.

6. What should I do if my LUT is rejected?
If your LUT is rejected, check the rejection reason on the GST portal. Common reasons include incorrect business details, missing documents, or past tax evasion issues. Correct the errors and reapply with the necessary changes.

7. Is LUT applicable to businesses that provide services instead of goods?
Yes, LUT applies to both goods and services exporters. Service providers who offer services to international clients or SEZs can also file an LUT to avoid IGST payments.

8. Can I modify or update an LUT after submission?
No, once an LUT is submitted and approved, it cannot be modified. If any corrections are needed, you must cancel the existing LUT and file a new one for the same financial year.

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