JASMINE KAUR HUDA
Chartered Accountant
Published on: Mar 18, 2026
GST LUT Filing- Complete Guide (Process, Due Date & Penalties)
As a crucial component of India’s GST regime, the Letter of Undertaking (LUT) simplifies the process for businesses dealing with exports. GST LUT Filing allows exporters to avoid taxes on the supply of goods or services. Understanding the GST LUT filing procedure, due dates, and associated penalties is vital for businesses to ensure compliance and avoid consequences. This guide provides a detailed overview of GST LUT Filing, including the process, deadlines, and penalties, offering businesses the insights they need to navigate this system effectively.
What is GST LUT?
The Goods and Services Tax (GST) provides exporters with an option to supply goods or services without paying integrated taxes by submitting a Letter of Undertaking (LUT). The LUT is a legal document ensuring that the exporter agrees to fulfill all conditions stipulated under GST regulations for exports without integrated tax payments.
Key Benefits of Filing GST LUT
- Tax Exemption: Exporters can supply goods and services without the payment of IGST.
- Improved Cash Flow: Avoiding IGST payment enhances cash flow management for businesses.
- Cost-Effective: Reducing the tax burden makes exporting more cost-effective.
Eligibility for GST LUT Filing
Only certain entities are eligible to file a GST LUT. Primarily, exporters of goods and services are covered. Here are the eligibility criteria:
- Registered under GST: Entities must have a GST registration.
- No prosecution history: The exporter should not have been prosecuted for any tax evasion amounting to Rs. 250 lakh or more in the previous financial year.
GST LUT Filing Process
Filing a GST LUT is a straightforward process if you adhere to all the necessary steps:
Step-by-Step Guide to Filing GST LUT
- Login to the GST Portal: Navigate to the GST portal and log in using your credentials.
- Go to the Services Tab: Under the 'User Services,' find the option for filing LUT.
- Fill Out the Application Form: Enter all required details such as financial year, ARN, and export details.
- Upload Supporting Documents: Documents like a business profile, and any specific declarations should be attached as needed.
- Preview and Submit: Double-check all entered information and then submit the form.
- ARN Generation: Once submitted, an Application Reference Number (ARN) is generated for tracking.
- Approval: Upon successful verification, the LUT is approved, and the exporter may proceed with tax-free exports.
GST LUT Filing Due Date
Timely filing of a GST LUT is crucial to benefit from tax exemptions:
- The LUT must be filed at the beginning of each financial year, before the commencement of export activities.
- Filing at the wrong time may result in unnecessary tax payments and cash flow issues.
Penalties for Late Filing of GST LUT
Delays in filing the GST LUT can lead to significant financial implications:
- If an LUT is not filed timely, exports will attract IGST, making them more expensive and potentially disrupting business cash flow.
- Companies may face scrutiny and bureaucratic difficulties in processing refunds, leading to penalties and interest on late payments.
Conclusion
Filing a GST LUT effectively ensures that your business leverages the best benefits afforded by the GST framework, enabling seamless export activities and improved cash flow management. By understanding the eligibility criteria, the filing process, due dates, and avoiding late filings, businesses can avert penalties. By adhering to this guide and consulting with GST professionals where needed, exporters can cultivate a more compliant, efficient, and profitable export practice.
Ensuring timely and accurate GST LUT filing can significantly improve operational efficiencies and enhance your company's profitability by preventing unnecessary tax liabilities.
Keep informed about the latest updates in the GST domain to remain compliant and capitalize on all available benefits.

