◆ Export under LUT (Letter of Undertaking) without payment of IGST
◆ Export with payment of IGST and later claim refund
Both methods are legally valid, but the choice affects working capital, cash flow, refund timelines, and compliance management.

Under GST law, export of services is treated as:
◆ Zero-rated supply
This means:
✔ GST is not intended to become a cost for exporters
✔ Refund benefits are available
✔ Input Tax Credit (ITC) can generally be claimed or refunded
Service exporters can choose either:
➤ LUT Route
➤ IGST Payment Route

Under LUT route:
✔ Services are exported without payment of IGST
✔ LUT is filed on GST portal before export
✔ Refund of unutilised ITC is claimed later
This route is widely preferred by service exporters because it avoids blocking working capital.


Since IGST is not paid upfront:
✔ Working capital blockage is reduced
✔ Liquidity remains available for operations
✔ Businesses avoid unnecessary tax outflow
This is especially beneficial for:
→ Startups
→ Freelancers
→ IT & software exporters
→ Consultants
→ SMEs

Businesses do not need to arrange additional funds for GST payment before export.
This improves:
◆ Operational flexibility
◆ Financial planning
◆ Cash flow stability

✖ Refund is available only for accumulated ITC
✖ Proper ITC reconciliation is important
✖ Incorrect documentation may delay refunds
Businesses must maintain:
◆ LUT copy
◆ Export invoices
◆ FIRC/BRC
◆ GST returns
◆ Agreements/contracts where required

Under this method:
✔ Exporter pays IGST on export of services
✔ Services are exported with GST payment
✔ Refund of IGST paid is claimed later
This route is less commonly used by service exporters compared to LUT route.


Businesses claim refund of actual IGST paid on exports instead of accumulated ITC.
This may simplify refund calculations for certain exporters.

Businesses with sufficient working capital may choose this route without major cash flow pressure.


Biggest drawback:
✖ IGST must be paid before claiming refund
This can create:
◆ Cash flow stress
◆ Delayed fund availability
◆ Higher working capital requirement
Especially difficult for startups and small exporters.

Refunds may get delayed due to:
• GST return mismatch
• Incorrect invoice reporting
• Documentation errors
• Reconciliation issues
Proper compliance is still essential.

✔ IT & software companies
✔ Freelancers
✔ Consultants
✔ Startups
✔ Businesses with limited working capital
because it avoids upfront GST payment.
✔ Businesses with strong cash reserves
✔ Certain exporters preferring direct IGST refund mechanism
✔ Businesses with specific operational preferences

Service exporters should maintain:
◆ LUT copy
◆ GST returns
◆ Export invoices
◆ FIRC/BRC
◆ Bank statements
◆ Agreement or contract copies
◆ ITC reconciliation records
Proper documentation helps avoid refund delays and notices.

Many exporters face refund issues due to:
• Incorrect LUT filing
• Wrong GST return reporting
• FIRC mismatch
• Invoice inconsistencies
• Improper ITC reconciliation
• Delay in refund filing
Accurate accounting and GST compliance are essential for smooth refund processing.

Both LUT route and IGST refund route are valid options for export of services under GST. However, most service exporters prefer the LUT route because it avoids upfront IGST payment and improves working capital management.
Businesses with stronger liquidity and specific operational needs may choose the IGST payment route. In both cases, proper documentation, GST compliance, and accurate accounting are critical for successful refund processing and avoiding delays.