GST on Export of Services: Zero-Rating, LUT & Refund Guide
Updated: 3 June 2026 | IGST Act 2017, Section 16 & Section 2(6)
Zero-rating allows full ITC refund; exempt supplies do not. LUT is the preferred route to export without upfront IGST payment.
What Qualifies as Export of Services — 5 Mandatory Conditions
Section 2(6) of the IGST Act defines export of services. All five conditions below must be satisfied simultaneously for the supply to qualify as zero-rated export:
| # | Condition | Practical Implication |
|---|---|---|
| 1 | Supplier located in India | The GST-registered Indian entity providing the service |
| 2 | Recipient located outside India | Foreign company or individual abroad; not a branch/liaison in India |
| 3 | Place of supply outside India | Determined under Sec. 13 IGST Act — generally follows recipient location for B2B services |
| 4 | Payment in convertible foreign exchange | USD, EUR, GBP etc. received in bank account; FIRC issued by AD bank as proof |
| 5 | Supplier and recipient not same person | Explanation 1, Sec. 8 — MNC subsidiaries billing parent must be careful here |
Two Routes to Export Services Under GST
Exporters can choose between two options under the law. The LUT route is preferred by most businesses because it avoids cash outflow on IGST at the time of export:
| Aspect | Route 1: Export Under LUT | Route 2: Pay IGST + Claim Refund |
|---|---|---|
| Invoice | Raised without IGST; mention LUT ARN | IGST charged at applicable rate (e.g., 18%) |
| Cash Flow | No upfront tax outgo | IGST paid; blocked till refund received |
| Refund Type | Refund of accumulated ITC via RFD-01 | Refund of IGST paid on export invoice |
| Preferred By | Almost all service exporters | Cases where ITC balance is minimal |
| Prerequisite | File Form RFD-11 (LUT) on GST portal | None; can export and file refund directly |
LUT Filing Process — Step by Step
LUT (Letter of Undertaking) must be filed online at the beginning of each financial year. There is no physical document, no bank guarantee, and no fee:
| Step | Action |
|---|---|
| 1 | Login to GST portal → Services → User Services → Furnish Letter of Undertaking (LUT) |
| 2 | Select the financial year; fill in the auto-populated details |
| 3 | Provide details of two witnesses (name, address, occupation) |
| 4 | Sign using DSC (Digital Signature Certificate) or EVC (OTP-based) |
| 5 | Submit — ARN (Application Reference Number) is generated instantly |
| 6 | Quote ARN on every export invoice for the financial year |
Eligibility: Any registered taxpayer can file LUT except those who have been prosecuted for any offence under GST or earlier indirect tax laws where the amount involved exceeds ₹2.5 crore. Such taxpayers must furnish a bond with surety instead.
Common Examples of Zero-Rated Service Exports
| Service Type | SAC Code | Zero-Rated? | Key Condition to Watch |
|---|---|---|---|
| IT Software Development | 9983 | Yes | Payment in foreign exchange; recipient abroad |
| Management Consulting | 9983 | Yes | Services delivered remotely to overseas client |
| BPO / Data Processing | 9985 | Yes | Place of supply must be outside India |
| Engineering Design Services | 9983 | Yes | Ensure service contract specifies foreign recipient |
| Legal Services (Firm to Foreign Client) | 9982 | Yes | Not individual advocates; firm-to-firm cross-border |
| Services related to immovable property in India to NRI | 9972 | No | Place of supply is India — CGST+SGST applies |
| Restaurant/Catering to Foreign Tourist in India | 9963 | No | Service consumed in India — not zero-rated |
GST Refund on Export of Services — RFD-01 Process
After exporting services under LUT, accumulated ITC can be claimed as a cash refund by filing Form RFD-01 on the GST portal. Key points:
| Detail | Rule |
|---|---|
| Time limit to file RFD-01 | Within 2 years from the relevant date (date of receipt of foreign exchange) |
| Provisional refund (RFD-04) | 90% of claimed amount within 7 days of RFD-02 acknowledgement |
| Final refund order (RFD-06) | Within 60 days of filing RFD-01 |
| Documents required | Export invoices, FIRC/BRC details, GSTR-2B reconciliation, CA certificate (if > ₹2L) |
| Refund formula | Refund = (Turnover of zero-rated supply ÷ Adjusted total turnover) × Net ITC |
Frequently Asked Questions
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