GST LUT for Export of Goods: Filing Process, Invoice Requirements and Compliance Guide

GST LUT for Export of Goods: Filing Process, Invoice Requirements and Compliance Guide

Exporting goods from India involves several tax, customs, accounting, and documentation requirements. Under the Goods and Services Tax (GST) framework, eligible exporters can make zero-rated supplies without payment of Integrated Goods and Services Tax (IGST) by furnishing a Letter of Undertaking (LUT). For businesses that regularly export goods, GST LUT can help reduce the immediate tax outflow and make export transactions easier to manage from a working-capital perspective.

GST LUT compliance is not limited to submitting an application on the GST portal. Exporters must also prepare appropriate export invoices, maintain shipping and customs documentation, report export transactions correctly in GST returns, reconcile their books with GST records, and comply with the applicable conditions for exports without payment of IGST.

This detailed guide explains GST LUT for export of goods, including what LUT means, who can use it, the filing process, export invoice requirements, GST return reporting, accounting considerations, shipping documentation, compliance requirements, common mistakes, and practical steps for maintaining proper records.

What is GST LUT?

GST LUT means Goods and Services Tax Letter of Undertaking. It is a declaration furnished by an eligible registered taxpayer who intends to make qualifying zero-rated supplies without payment of IGST.

Under the GST framework, exports are treated as zero-rated supplies subject to the applicable provisions. An eligible exporter can generally choose the route of exporting without payment of IGST by furnishing an LUT, instead of paying IGST upfront and following the applicable refund mechanism for that tax.

Rule 96A of the CGST Rules provides for export of goods or services without payment of integrated tax after furnishing a bond or LUT in the prescribed manner.

For exporters of goods, LUT is therefore an important part of the GST compliance process when the business chooses to export without payment of IGST.

Why is GST LUT Important for Exporters?

Export transactions can involve substantial invoice values. If an exporter pays IGST upfront on every export transaction, a significant amount of money may temporarily leave the business until the applicable refund process is completed.

The LUT mechanism allows eligible exporters to make qualifying exports without payment of IGST. This can help preserve working capital and reduce the need to fund an upfront IGST payment on export transactions.

For example, a manufacturer exporting goods worth several lakh rupees every month may prefer the LUT route because the business can avoid the immediate IGST payment on qualifying exports, subject to the applicable requirements.

However, LUT does not eliminate GST compliance. The exporter still needs to report exports correctly, maintain documents, prepare appropriate invoices, and comply with applicable GST and customs requirements.

GST LUT and Zero-Rated Supply

The concept of zero-rated supply is important when understanding GST LUT.

Exports are treated as zero-rated supplies under the GST framework. Zero-rated supplies are different from ordinary exempt supplies because the GST law provides specific treatment relating to tax and input tax credit, subject to applicable conditions.

An eligible registered person can make qualifying exports without payment of IGST by furnishing the required LUT. The exporter may also have rights relating to eligible input tax credit and refunds under the applicable provisions.

Therefore, exporters should understand the distinction between:

• Export of goods under LUT without payment of IGST.
• Export of goods on payment of IGST followed by the applicable refund mechanism.
• Domestic exempt supplies.
• Non-GST supplies.

Who Can File GST LUT for Export of Goods?

Eligible registered taxpayers intending to make qualifying exports without payment of IGST can use the LUT mechanism, subject to the applicable GST provisions and restrictions.

Businesses that may commonly use LUT include:

• Manufacturers exporting finished goods.
• Traders exporting goods purchased in India.
• Merchant exporters.
• Manufacturing companies with international customers.
• Export-oriented businesses.
• Businesses supplying goods to overseas customers.
• Other eligible registered taxpayers making qualifying zero-rated supplies.

Eligibility should be checked based on the current GST law and the taxpayer's specific circumstances. CBIC's LUT guidance states that the facility is available to registered persons intending to supply goods or services for export without payment of integrated tax, subject to the applicable conditions and exclusions.

GST LUT Filing Process for Export of Goods

The LUT process is generally completed electronically through the GST portal. Exporters should ensure that the LUT is furnished for the relevant financial year and that the required information is accurate.

Step 1: Check GST Registration

The exporter should first confirm that the business has a valid GST registration and is eligible to make the intended zero-rated export supplies.

Step 2: Log in to the GST Portal

The authorised person should log in to the GST portal using the taxpayer's credentials.

Step 3: Open the LUT Application

Navigate to the relevant GST services and select the option for furnishing the Letter of Undertaking.

Step 4: Select the Financial Year

Select the financial year for which the LUT is being furnished. Businesses should carefully verify the financial year before submitting the form.

Step 5: Enter Required Details

Enter the information requested by the GST portal. This may include taxpayer details, authorised signatory information, and other declarations required under the applicable procedure.

Step 6: Accept the LUT Declaration

The authorised signatory must accept the prescribed undertaking and declarations.

Step 7: Complete Verification

Complete the electronic verification process as applicable.

Step 8: Submit the LUT

Submit the LUT electronically through the GST portal.

Step 9: Save the Acknowledgement

After successful submission, download or retain the acknowledgement and relevant reference information for the company's compliance records.

Exporters should always check the current GST portal workflow because online procedures, validations, and portal interfaces may be updated.

When Should GST LUT Be Filed?

Businesses intending to make exports without payment of IGST should plan their LUT filing before undertaking the relevant exports. Rule 96A refers to furnishing the bond or LUT before export for the route of supply without payment of integrated tax.

Businesses should therefore avoid waiting until the last moment. A good practice is to include LUT filing in the annual GST compliance calendar before regular export operations begin for the relevant financial year.

Validity of GST LUT

The LUT is generally valid for the financial year in which it is furnished. CBIC guidance specifically states that the LUT is valid for the whole financial year in which it is tendered, subject to the applicable conditions.

Exporters who continue their export business into the following financial year should review and furnish the LUT for the new financial year as required.

A business should not assume that an LUT filed for one financial year automatically remains valid forever.

GST LUT Export Invoice Requirements

Correct invoicing is one of the most important parts of LUT compliance.

For exports under LUT, the export invoice should contain the applicable GST invoice particulars and the prescribed export endorsement. CBIC's invoice rules provide that an export invoice should carry the endorsement "SUPPLY MEANT FOR EXPORT UNDER BOND OR LETTER OF UNDERTAKING WITHOUT PAYMENT OF IGST" when the export is made under the LUT/bond route.

The invoice should also contain the relevant recipient and destination information prescribed for export invoices.

Common Export Invoice Details

An export invoice may contain details such as:

• Supplier's legal name.
• Supplier's address.
• GSTIN.
• Invoice number.
• Invoice date.
• Foreign customer's name.
• Foreign customer's address.
• Country of destination.
• Description of goods.
• Quantity.
• Unit price.
• Total invoice value.
• Currency.
• HSN details, where applicable.
• LUT export endorsement.
• Shipping-related information, as applicable.

Exporters should verify the current statutory invoice requirements before finalising their invoice format.

GST LUT Invoice Declaration

The export invoice should clearly indicate the applicable LUT treatment.

A commonly used declaration is:

SUPPLY MEANT FOR EXPORT UNDER LETTER OF UNDERTAKING WITHOUT PAYMENT OF IGST

This declaration distinguishes an LUT export from an export made on payment of IGST. CBIC's GST invoice rules prescribe the corresponding endorsement for exports under bond or LUT.

GST LUT and Shipping Bill

For physical exports of goods, the shipping bill is an important customs document. The exporter should ensure that the information in the shipping bill is consistent with the export invoice and other records.

Businesses should reconcile information such as:

• Invoice number.
• Invoice date.
• Export value.
• Product description.
• Quantity.
• Port details.
• Shipping bill number.
• Shipping bill date.

Differences between shipping documents and GST records can create reconciliation issues and may complicate subsequent compliance or refund-related processes.

GST LUT and GSTR-1 Filing

Filing an LUT does not replace GST return filing. Exporters must report their export transactions through the applicable GST return process.

The GST portal's GSTR-1 guidance includes a specific category for exports and distinguishes exports with and without payment of IGST. The GST system documentation states that exports without payment of IGST under bond/LUT are reported under the relevant export category.

Therefore, exporters should ensure that the export invoice details entered into GSTR-1 agree with their books and shipping documents.

How to Report LUT Exports in GSTR-1

When preparing GSTR-1, the exporter should select the applicable export category and provide the required invoice and export details.

Important information can include:

• Export invoice number.
• Invoice date.
• Invoice value.
• Taxable value.
• Country of destination, where applicable.
• Shipping bill details when available and required.
• Applicable export classification.

The GST portal's official GSTR-1 guidance explains the relevant export reporting functionality and provides options for export transactions with and without payment of IGST.

GST LUT and GSTR-3B

Exporters should also ensure that their GSTR-3B reporting is consistent with their GSTR-1 and accounting records.

Differences between GSTR-1 and GSTR-3B can lead to reconciliation issues. CBIC guidance on export refunds has specifically discussed discrepancies between information furnished in GSTR-1 and GSTR-3B.

Businesses should therefore perform regular reconciliation rather than waiting until the end of the financial year.

GST LUT and Accounting Treatment

When goods are exported under LUT without payment of IGST, the accounting system should correctly identify the transaction as an export made without payment of IGST.

A simplified accounting representation may be:

Export Customer / Receivable Account Dr.

To Export Sales Account

No output IGST should be incorrectly added to the invoice simply because the transaction is an export. The exact accounting entry can vary according to the accounting system and business structure.

Businesses should configure their accounting software to distinguish between:

• Domestic taxable sales.
• Export under LUT.
• Export with payment of IGST.
• Other zero-rated supplies.
• Exempt supplies.
• Non-GST transactions.

Benefits of GST LUT for Exporters

1. No Upfront IGST Payment on Eligible LUT Exports

The main practical benefit is that eligible exports can be made without payment of IGST through the LUT route.

2. Better Working Capital Management

By avoiding an upfront IGST outflow, exporters can keep more funds available for regular business operations.

3. Reduced Dependence on IGST Refund

When IGST is not paid on the export transaction, the exporter does not need to claim a refund of that particular IGST payment. Other refund mechanisms, such as refund of eligible accumulated ITC, may still apply subject to the law.

4. Convenient for Regular Exporters

Businesses with recurring export transactions can integrate LUT into their annual GST compliance process.

5. Improved Cash-Flow Planning

Businesses can avoid planning for large upfront IGST payments on qualifying LUT exports, helping with cash-flow management.

GST LUT and Input Tax Credit

Exporters often incur GST on purchases, raw materials, packaging, freight, services, and other business expenses.

Because qualifying exports are zero-rated, the GST framework provides specific provisions concerning input tax credit and refunds, subject to applicable conditions.

Exporters should maintain accurate ITC records and reconcile purchase invoices with their GST records.

Where a refund of accumulated ITC is claimed for eligible zero-rated supplies made without payment of tax, the applicable refund formula and requirements need to be followed. CBIC's refund rules provide for a formula based on zero-rated turnover, net ITC, and adjusted total turnover.

Documents Required for GST LUT Compliance

Businesses should maintain a complete document trail for exports.

GST Documents

• GST registration certificate.
• LUT acknowledgement.
• Export invoices.
• GSTR-1 records.
• GSTR-3B records.
• Input tax credit records.

Export Documents

• Shipping bill.
• Bill of lading.
• Airway bill.
• Packing list.
• Purchase order.
• Export contract.
• Commercial invoice.

Financial Documents

• Customer ledger.
• Bank statement.
• Foreign currency receipt details.
• Foreign exchange records.
• Accounting records.

The exact documents required depend on the nature of the transaction and applicable law.

GST LUT Compliance Timeline

Exporters should build a compliance calendar covering the entire export cycle.

1. Furnish LUT for the applicable financial year.
2. Raise the export invoice correctly.
3. Complete customs and shipping documentation.
4. Record the transaction in the accounting system.
5. Report the export in GSTR-1.
6. Complete applicable GSTR-3B reporting.
7. Reconcile books and GST returns.
8. Reconcile shipping documentation.
9. Track export proceeds and relevant payment documentation.
10. Monitor ITC and applicable refund opportunities.
11. Renew or furnish LUT for the next financial year as required.

Time Limit for Export of Goods Under LUT

Exporters should pay close attention to the conditions attached to LUT exports.

Rule 96A provides conditions concerning the time within which goods or services must be exported and the consequences where the prescribed requirements are not fulfilled. The rule provides for payment of applicable tax and interest within the prescribed period in circumstances where the export conditions are not met.

For goods, the applicable statutory timelines should be reviewed carefully before relying on LUT for an export transaction.

Businesses should maintain an internal system for tracking export orders, dispatch dates, shipping bills, and other relevant milestones.

What Happens if LUT Conditions Are Not Met?

LUT is an undertaking to comply with the applicable conditions. If an exporter does not meet the prescribed export requirements, the business may become liable for tax and interest as provided under the applicable rules.

CBIC's Rule 96A material specifies consequences involving payment of tax and interest where the prescribed export conditions are not fulfilled within the applicable period.

Therefore, exporters should monitor delayed shipments and other transactions that may affect LUT compliance.

Common GST LUT Mistakes by Exporters

1. Not Filing LUT on Time

Businesses sometimes start export operations without completing the required LUT process. Exporters should plan LUT filing in advance.

2. Using the Wrong Invoice Declaration

An invoice for export under LUT should contain the applicable endorsement. The export invoice should not be treated as a standard domestic taxable invoice.

3. Charging IGST Incorrectly

If the exporter has selected the LUT route, incorrect charging of IGST can create accounting and GST reporting complications.

4. Incorrect GSTR-1 Classification

Export invoices should be reported under the appropriate export category in GSTR-1.

5. Shipping Bill and Invoice Mismatch

Differences in invoice numbers, dates, values, or other details can create reconciliation problems.

6. Not Reconciling GSTR-1 and GSTR-3B

Businesses should compare their outward supply data before filing returns.

7. Not Maintaining LUT Acknowledgement

The LUT acknowledgement should be retained with other GST compliance documents.

8. Forgetting Annual LUT Renewal

Exporters should include LUT renewal in their annual compliance calendar.

GST LUT vs Export on Payment of IGST

Eligible exporters may generally consider the two broad routes available under the GST framework, subject to the applicable provisions:

Particular	Export Under LUT	Export With Payment of IGST
IGST paid on export	No, under the LUT route	Yes
LUT	Required	Not used for the payment-of-IGST route
Immediate cash outflow	Generally lower because IGST is not paid upfront	IGST is paid upfront
Refund consideration	Potential refund of eligible accumulated ITC, subject to applicable rules	Applicable refund mechanism for IGST paid, subject to requirements
GST returns	Required	Required

The appropriate route depends on the taxpayer's circumstances, eligibility, cash-flow requirements, transaction structure, and applicable GST provisions.

GST LUT and E-Invoicing

LUT and e-invoicing are separate GST compliance concepts.

Whether e-invoicing applies to an exporter depends on the applicable turnover threshold, taxpayer category, transaction type, and rules in force for the relevant period.

Businesses should therefore evaluate e-invoicing applicability separately rather than assuming that an LUT export is automatically outside the e-invoicing framework.

Where e-invoicing applies, exporters should ensure that invoice data transmitted to the Invoice Registration Portal is consistent with the accounting and GST records.

GST LUT and E-Way Bill

LUT does not automatically determine whether an e-way bill is required.

For movement of goods, exporters should separately determine e-way bill applicability based on the relevant rules and circumstances.

The exporter should ensure consistency among the GST invoice, e-way bill where applicable, shipping documentation, accounting records, and GST return.

GST LUT Accounting Reconciliation

A monthly reconciliation process can significantly improve GST compliance.

Exporters can compare:

• Sales register.
• Export invoice register.
• General ledger.
• GSTR-1.
• GSTR-3B.
• Shipping bills.
• Bank statements.
• ITC records.

Any difference should be investigated before the next return is filed wherever possible.

GST LUT Checklist for Exporters

Use this checklist when managing exports under LUT:

1. Verify GST registration.
2. Confirm eligibility for LUT.
3. Furnish LUT for the relevant financial year.
4. Save the LUT acknowledgement.
5. Configure the accounting software for LUT exports.
6. Prepare export invoices with the correct endorsement.
7. Complete customs documentation.
8. Record export sales correctly.
9. Report exports correctly in GSTR-1.
10. Review GSTR-3B reporting.
11. Reconcile GST returns with books.
12. Reconcile invoices with shipping bills.
13. Track export payments.
14. Maintain supporting documents.
15. Monitor applicable export timelines.
16. Review LUT requirements for the next financial year.

Frequently Asked Questions About GST LUT for Export of Goods

What is GST LUT for export of goods?

GST LUT is a Letter of Undertaking furnished by an eligible registered taxpayer to make qualifying exports without payment of IGST, subject to the applicable GST provisions and conditions.

Can goods be exported without paying IGST?

Eligible exporters can generally export qualifying goods without payment of IGST by following the LUT route and complying with the applicable conditions.

Is LUT required for every export invoice?

LUT is generally furnished for the applicable financial year rather than separately for each invoice. However, individual export invoices must reflect the applicable LUT treatment and contain the prescribed details.

Is GST LUT valid for one year?

The LUT is generally valid for the financial year in which it is furnished. Exporters should review and furnish the LUT for subsequent financial years as required.

Does LUT remove GST return filing requirements?

No. Exporters must continue to file applicable GST returns and report their export transactions correctly.

What endorsement is required on an LUT export invoice?

CBIC's invoice rules prescribe the endorsement "SUPPLY MEANT FOR EXPORT UNDER BOND OR LETTER OF UNDERTAKING WITHOUT PAYMENT OF IGST" for exports under the bond/LUT route.

Can an exporter claim input tax credit while using LUT?

Zero-rated supply provisions provide for input tax credit subject to the applicable conditions. Eligible exporters may also consider the applicable refund provisions for accumulated ITC.

Can a merchant exporter use LUT?

An eligible registered merchant exporter can use the LUT route for qualifying exports, subject to the applicable GST requirements.

Can manufacturers use LUT?

Yes, eligible registered manufacturers exporting qualifying goods can use LUT for exports without payment of IGST, subject to applicable conditions.

Is LUT applicable to domestic sales?

LUT is intended for eligible zero-rated supplies and is not a general mechanism for domestic taxable sales.

What records should an exporter maintain?

Exporters should maintain LUT records, export invoices, shipping documents, accounting records, GST returns, bank records, and other relevant supporting documents.

Conclusion

GST LUT is an important compliance mechanism for eligible exporters of goods who want to make qualifying zero-rated exports without payment of IGST. It can help businesses manage working capital while avoiding an upfront IGST payment on eligible export transactions.

However, successful LUT compliance involves much more than filing the LUT form. Exporters must prepare correct export invoices, include the applicable LUT endorsement, complete customs and shipping documentation, record transactions accurately in their accounting system, report exports correctly in GST returns, and reconcile GST data with books and shipping records.

Businesses should also monitor the conditions associated with LUT exports and maintain adequate evidence supporting every export transaction. Regular reconciliation can help identify invoice mismatches, incorrect return classifications, accounting errors, and missing documents before they become larger compliance problems.

For exporters with regular international shipments, LUT should be incorporated into the annual GST compliance calendar. Businesses should track LUT validity, export timelines, invoice reporting, return filing, input tax credit, and applicable refund requirements as part of one integrated compliance process.

GST rules, portal procedures, invoice requirements, and reporting mechanisms can change over time. Exporters should therefore verify the current requirements applicable to their transactions before filing an LUT or undertaking exports without payment of IGST. Where the business has complex export arrangements, substantial transactions, or unusual tax circumstances, professional GST advice may be appropriate.