Indirect Tax Laws · Import and Export Under GST
Refund of IGST Paid on Exports and Unutilised ITC
Updated 5 October 2026
Exporters can pay IGST and claim its refund, or export under bond or LUT without paying IGST and claim refund of unutilised input tax credit. For the second route, use Rule 89(4): zero-rated turnover × net ITC ÷ adjusted total turnover, less tax payable on zero-rated services. You cannot claim both on the same supply.
Understand Refund of IGST Paid on Exports and Unutilised ITC
Exports are zero-rated supplies under the IGST Act. The aim is that no tax is exported with the goods or services. So the exporter gets back either the IGST paid on the export or the input tax credit (ITC) that is stuck because no output tax is payable.
The law gives two options. Option 1: pay IGST and claim a refund of that IGST. You pay IGST on the export, usually by using your ITC. The IGST is then refunded. Option 2: export under a bond or Letter of Undertaking (LUT) without paying IGST and claim a refund of unutilised ITC. Your input credit builds up because there is no output tax to set it against, so the credit is refunded in cash.
You choose one option for a given supply. If you pay IGST and take its refund, you cannot also claim a refund of the ITC that was used to pay that IGST. That would be a double benefit.
For goods exported with payment of IGST, the refund is largely automatic. The shipping bill filed with Customs is treated as the refund application once you have filed the GSTR-1 and GSTR-3B, and the refund is credited to your bank account. For services exported with payment of IGST, and for all refunds of unutilised ITC, you apply on the GST portal in FORM GST RFD-01.
The claim must be made within two years from the relevant date. The relevant date is given in Explanation (2) to Section 54 of the CGST Act. For goods exported by sea or air, it is the date the conveyance departs. For services, whether exported with or without payment of tax, it is the date of receipt of payment in convertible foreign exchange, or the date of issue of invoice if payment was received in advance.
The general rule is that no refund is paid if the amount is less than ₹1,000 under Section 54(14) of the CGST Act. That limit does not apply to refund of tax paid on zero-rated supplies of goods or services or both, or on inputs or input services used in making such zero-rated supplies. So both the refund of IGST paid on exports and the refund of unutilised ITC on exports are outside the ₹1,000 limit.
Key rules to remember
- Zero-rated supply options
- Option 1: Export with IGST → refund of IGST paid | Option 2: Export under bond/LUT without IGST → refund of unutilised ITC
- Under Section 16 of the IGST Act, the exporter chooses. The refund is under Section 16(3) of the IGST Act read with Section 54 of the CGST Act. Do not claim both on the same supply.
- Refund of unutilised ITC (Rule 89(4))
- Refund = (Turnover of zero-rated supply of goods + Turnover of zero-rated supply of services) × Net ITC ÷ Adjusted Total Turnover − Tax payable on such zero-rated supply of services
- Applies to exports without payment of tax. The refund cannot exceed the balance in your electronic credit ledger.
- Net ITC
- Net ITC = ITC availed on inputs and input services during the relevant period, other than ITC for which refund is claimed under sub-rule (4A) or (4B)
- Net ITC covers only inputs and input services. ITC on capital goods is not part of inputs and input services, so it is not in Net ITC. Do not include it.
- Turnover of zero-rated supply of goods
- Lower of: (i) the FOB value declared in the shipping bill/bill of export, and (ii) the value declared in the tax invoice
- Applies to goods only, not services. Counts only exports made without payment of tax. There is no 1.5 times cap in the current rule, so do not apply one.
- Adjusted Total Turnover
- Turnover in the State/UT of the person, excluding the value of exempt supplies other than zero-rated supplies, and excluding the turnover of periods for which no refund is claimed (Rule 89(4))
- It includes zero-rated turnover and taxable domestic turnover. Exempt supplies other than zero-rated supplies are taken out, and so is the turnover of any period for which you claim no refund.
- Time limit
- Two years from the relevant date (Explanation (2) to Section 54 of the CGST Act)
- For goods by sea or air, the relevant date is the date the conveyance departs. For services, it is the date of receipt of payment in convertible foreign exchange, or the date of issue of invoice if payment was received in advance.
- Minimum refund limit
- No refund is paid if the amount is less than ₹1,000. This limit does not apply to refund of tax paid on zero-rated supplies of goods or services or both, or on inputs or input services used in making such zero-rated supplies.
- Under Section 54(14) of the CGST Act, both the refund of IGST paid on exports and the refund of unutilised ITC on exports are exempt from the ₹1,000 limit.
How to solve Refund of IGST Paid on Exports and Unutilised ITC questions
Use this method for any question on export refunds. It works for both the theory and the number-based questions.
- 1Identify the route. Check whether the exporter paid IGST or exported under bond or LUT without paying IGST. This decides what can be refunded.
- 2If IGST was paid, state that the refund is of the IGST paid. For goods, the shipping bill acts as the application once GSTR-1 and GSTR-3B are filed. For services, FORM GST RFD-01 is filed.
- 3If exported under LUT, list the figures: zero-rated turnover of goods and services, net ITC on inputs and input services, and domestic taxable and exempt turnover.
- 4Fix the zero-rated turnover of goods (this applies to goods only). Take the lower of the FOB value declared in the shipping bill/bill of export and the value declared in the tax invoice. Do not apply any 1.5 times cap.
- 5Compute Adjusted Total Turnover. Add zero-rated turnover and taxable domestic turnover. Exclude exempt supplies. Take Net ITC as ITC on inputs and input services only. Capital goods ITC is not part of inputs and input services, so it is not in Net ITC.
- 6Apply the Rule 89(4) formula. Subtract tax payable on zero-rated services, if any. Then cap the answer at the balance in the electronic credit ledger.
- 7Check the bars and limits: two-year time limit and no double claim on the same supply. The ₹1,000 minimum under Section 54(14) does not apply to refund of tax paid on zero-rated supplies or on inputs or input services used for them. So it does not bar an export refund of IGST paid or of unutilised ITC.
- 8Write the conclusion in provision-facts-conclusion form with the final refund amount.
Quickest way: Three-line check for LUT refund problems
When to use it: Use it when a numerical question gives turnover and ITC figures and asks for the refund of unutilised ITC under LUT.
- Underline what is excluded: capital goods ITC and exempt supplies. Cross them out first.
- Write the ratio: zero-rated turnover ÷ (zero-rated + taxable domestic turnover). Simplify it.
- Multiply the ratio by Net ITC, deduct tax on zero-rated services if any, and compare with the ledger balance.
Common mistakes in Refund of IGST Paid on Exports and Unutilised ITC
Including ITC on capital goods in Net ITC.
Students treat all ITC as one pool.
Fix: In Rule 89(4), Net ITC means ITC availed on inputs and input services during the relevant period, other than ITC for which refund is claimed under sub-rule (4A) or (4B). Capital goods ITC is not within inputs and input services, so keep it out of Net ITC.
Including exempt supplies in Adjusted Total Turnover.
Students add up all turnover shown in the question.
Fix: Exclude exempt supplies other than zero-rated supplies. Add only zero-rated and taxable domestic turnover.
Claiming both IGST refund and unutilised ITC refund on the same export.
Students see two refund routes and think both can be used together.
Fix: The two routes are alternatives for a given supply. If IGST is paid and refunded, the ITC used to pay it cannot be refunded again.
Using the wrong value as zero-rated turnover of goods, such as an invoice value that is higher than the FOB value, or applying an old 1.5 times cap.
Students pick the invoice value by habit, or remember a cap that is no longer in the rule.
Fix: For goods only, take the lower of the FOB value declared in the shipping bill/bill of export and the value declared in the tax invoice. Do not apply any 1.5 times cap.
Forgetting to deduct tax payable on zero-rated services or to cap the refund at the ledger balance.
Students stop once the main division is done.
Fix: Always finish the formula with the deduction and then compare the answer with the balance in the electronic credit ledger.
Applying the wrong relevant date or time limit.
Students use the invoice date for everything.
Fix: Use Explanation (2) to Section 54. For goods by sea or air, use the date the conveyance departs. For services, use the date of receipt of payment in convertible foreign exchange, or the date of issue of invoice if payment was received in advance. The limit is two years.
Applying the ₹1,000 minimum refund limit to an export refund, whether of IGST paid or of unutilised ITC.
Students remember the general rule in Section 54(14) but forget its exception for zero-rated supplies.
Fix: Section 54(14) does not apply to refund of tax paid on zero-rated supplies of goods or services or both, or on inputs or input services used in making such supplies. Both the IGST refund and the unutilised-ITC refund on exports are exempt from the ₹1,000 limit.
Worked examples
Example 1
Kavya Textiles, a registered exporter, exports garments under LUT without payment of IGST. For the relevant period, the FOB value in the shipping bills and the value in the tax invoices are both ₹60,00,000. Domestic taxable turnover is ₹20,00,000 and exempt supplies are ₹5,00,000. ITC on inputs and input services, net of reversals, is ₹7,20,000. ITC on capital goods is ₹1,00,000. The electronic credit ledger balance is sufficient. Compute the refund of unutilised ITC.
Show the solution
- Route: exports under LUT without payment of tax, so the refund is of unutilised ITC under Rule 89(4).
- Turnover of zero-rated supply of goods = lower of FOB value (₹60,00,000) and invoice value (₹60,00,000) = ₹60,00,000. There are no zero-rated services.
- Net ITC = ITC on inputs and input services = ₹7,20,000. Capital goods ITC of ₹1,00,000 is outside inputs and input services, so it is not part of Net ITC.
- Adjusted Total Turnover = ₹60,00,000 + ₹20,00,000 = ₹80,00,000. The exempt supplies of ₹5,00,000 are excluded.
- Refund = ₹60,00,000 × ₹7,20,000 ÷ ₹80,00,000 = ₹5,40,000.
- No tax is payable on zero-rated services, so there is no deduction. The ledger balance is sufficient, so no cap applies.
Answer: Refund of unutilised ITC = ₹5,40,000.
Example 2
Meera Engineering exports machine parts of ₹40,00,000 on payment of IGST at 18%. It paid the IGST using the ITC available in its electronic credit ledger. It has filed GSTR-1 and GSTR-3B for the period. It also wants to claim a separate refund of unutilised ITC of ₹5,00,000 for the same export. Advise.
Show the solution
- Route: the export is with payment of IGST, so the refund is of the IGST paid.
- IGST paid = 18% × ₹40,00,000 = ₹7,20,000.
- For goods, the shipping bill is treated as the refund application once GSTR-1 and GSTR-3B are filed. Customs processes it and the refund is credited to the bank account.
- The separate claim of ₹5,00,000 fails for this supply. The unutilised-ITC refund is available only for exports made without payment of tax. Here the credit was used to pay IGST, and that IGST is being refunded.
- Claiming both would give a double benefit, so it is not allowed.
Answer: Meera Engineering gets a refund of IGST of ₹7,20,000. It cannot claim a separate refund of ITC for the same export.
Exam tips
- In theory questions, begin with the two options under Section 16 of the IGST Act and state that the exporter chooses one.
- In number-based questions, show the Rule 89(4) formula first and then substitute. Marks are often given for the formula and for excluding capital goods and exempt supplies.
- Read case scenarios for hints on the route: words like LUT, bond, shipping bill or payment of IGST decide the answer.
- Mention the two-year limit and the relevant date, citing Explanation (2) to Section 54, when the facts give dates of shipment, invoice or payment.
- For goods, take the lower of the FOB value in the shipping bill and the invoice value as zero-rated turnover. Do not apply a 1.5 times cap.
- If an export refund is below ₹1,000, remember that the Section 54(14) limit does not apply to refund of tax paid on zero-rated supplies or on inputs or input services used for them. This covers both IGST refund and unutilised-ITC refund.
Practice questions from Import and Export Under GST
- Arvind Exports Ltd received an IGST refund of Rs 12,00,000 on an export of goods worth Rs 60,00,000. Sale proceeds of Rs 15,00,000 were not …
- Meridian Engineering Ltd exported goods and received a refund of Rs 12,00,000 of integrated tax paid on the export. Sale proceeds of Rs 40,0…
- Meru Engineering exported goods and received a refund of Rs 4,00,000 of integrated tax paid. Of the sale proceeds, 25% were not realised in …
- Kaveri Engineering Pvt Ltd issued an export invoice for goods on 10 January under an LUT, but the goods were not exported. The Commissioner …
- Under Rule 96B, Zenith Exports received a refund of unutilised ITC on export of goods. Proceeds were not realised within the FEMA period and…
Refund of IGST Paid on Exports and Unutilised ITC: frequently asked questions
Can an exporter claim a refund of ITC if it pays IGST on exports?
No. If you pay IGST on the export and claim its refund, you cannot also claim a refund of the ITC used to pay that IGST. Refund of unutilised ITC is for exports without payment of tax under bond or LUT.
How is the refund of IGST paid on export of goods claimed?
You file GSTR-1 and GSTR-3B correctly. The shipping bill is then treated as the refund application, and Customs processes the claim and credits the refund to your bank account. For exported services with payment of IGST, you apply in FORM GST RFD-01.
What is the formula for refund of ITC on zero-rated supply?
Refund = (Turnover of zero-rated goods + Turnover of zero-rated services) × Net ITC ÷ Adjusted Total Turnover − tax payable on zero-rated services. Net ITC covers inputs and input services, not capital goods. The refund is capped at the balance in your electronic credit ledger.
What is the time limit to claim an export refund under GST?
You must apply within two years from the relevant date, as given in Explanation (2) to Section 54 of the CGST Act. For goods exported by sea or air, it is the date the conveyance departs. For services, it is the date of receipt of payment in convertible foreign exchange, or the date of issue of invoice if payment was received in advance.