GST on Export of Services — LUT vs IGST Refund Route
Export of services is treated as a zero-rated supply under GST. This means exporters can export services without GST burden and claim refund benefits through either of the following methods:
◆ Export under LUT (Letter of Undertaking) without payment of IGST
◆ Export with payment of IGST and claim refund later
Choosing the right option can significantly impact cash flow and working capital management.
Export Under LUT
Under the LUT route:
✔ Services are exported without charging or paying IGST
✔ LUT is filed on the GST portal annually
✔ Refund is claimed for unutilized Input Tax Credit (ITC)
This is the most commonly used option for service exporters.
Benefits of LUT Route
◉ Better Cash Flow
Since no IGST is paid upfront:
◆ No working capital blockage
◆ Funds remain available for business operations
◆ Lower financial burden on startups and SMEs
◉ Suitable For
➤ IT & Software Companies
➤ Consultants
➤ Freelancers
➤ Digital Marketing Agencies
➤ Professional Service Exporters
Challenges Under LUT
✖ Refund is limited to accumulated ITC
✖ Proper documentation is required
✖ ITC reconciliation must be accurate
Businesses should maintain:
◆ LUT copy
◆ Export invoices
◆ FIRC/BRC
◆ GST returns
◆ Service agreements
Export with Payment of IGST
Under this route:
✔ IGST is charged and paid on export invoices
✔ Refund of IGST paid is claimed later from GST department
Benefits of IGST Refund Route
◉ Direct Tax Refund
Businesses claim refund of actual IGST paid instead of accumulated ITC.
For some exporters, refund calculations may become easier.
◉ Useful for Businesses with Strong Liquidity
Companies having sufficient cash flow may opt for this route without major operational impact.
Challenges of IGST Refund Route
◉ Working Capital Blockage
The biggest drawback is:
✖ GST must be paid first
✖ Funds remain blocked until refund is received
This can affect:
◆ Cash flow
◆ Business liquidity
◆ Day-to-day operations
◉ Refund Delays
Refunds may get delayed because of:
• GST return mismatches
• Incorrect invoice reporting
• Documentation errors
• Reconciliation issues
Which Route is Better?
For most service exporters:
✔ LUT Route is generally preferred
because:
◆ No upfront GST payment
◆ Better working capital management
◆ Reduced cash flow pressure
IGST refund route is usually chosen by businesses that have strong liquidity and specific operational preferences.
Important Documents for Refund Claims
Service exporters should maintain:
➤ LUT copy (if applicable)
➤ Export invoices
➤ FIRC/BRC
➤ GST returns
➤ Bank realization records
➤ Service contracts or agreements
➤ ITC reconciliation statements
Proper documentation helps ensure smooth refund processing and avoids notices.
Common Mistakes to Avoid
• Not filing LUT before export
• Incorrect reporting in GSTR-1 or GSTR-3B
• Missing FIRC/BRC documentation
• Wrong classification of export services
• Delay in filing refund applications
• ITC mismatch during reconciliation
Conclusion
Both LUT and IGST refund routes are available for exporters of services under GST. However, the LUT route is generally more popular because it avoids upfront tax payment and helps preserve working capital.
Businesses should evaluate their cash flow position, refund requirements, and compliance capabilities before selecting the appropriate route. Proper GST compliance and documentation remain essential under both methods to ensure timely refund processing and avoid disputes.
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