Refund of Exports and Inverted Duty Structure under GST

Understand Refund of Exports and Inverted Duty Structure

Key rules to remember

Zero-rated supply without payment of tax (Rule 89(4))

Refund = (Turnover of zero-rated supply of goods + Turnover of zero-rated supply of services) × Net ITC ÷ Adjusted Total Turnover

Net ITC here is ITC availed on inputs and input services in the relevant period, excluding ITC for which refund is claimed under sub-rules (4A) or (4B). ITC that is not eligible is not part of ITC availed, so it stays out.

Adjusted Total Turnover (Rule 89(4))

Adjusted Total Turnover = Turnover of goods and services other than zero-rated supplies (excluding exempt turnover) + Turnover of zero-rated supplies

Exempt turnover is left out. Zero-rated turnover is added back at the value taken for the refund. In a question, first list domestic taxable turnover, then add the zero-rated turnover.

Turnover of zero-rated supply of goods

Lower of: value in the tax invoice, and FOB value as per the shipping bill

Using the lower value stops inflated invoices from raising the refund.

Inverted duty structure (Rule 89(5))

Maximum refund = [Turnover of inverted rated supply of goods and services × Net ITC ÷ Adjusted Total Turnover] − [Tax payable on such inverted rated supply × (Net ITC ÷ ITC availed on inputs and input services)]

Net ITC here means ITC availed on inputs only, not input services. The tax payable is scaled by Net ITC ÷ ITC availed on inputs and input services, so it is not deducted in full. The result is a maximum, and refund cannot exceed the balance in the electronic credit ledger.

Zero-rated supply with payment of tax

Refund = IGST paid on the export of goods or services

For goods, refund is based on the shipping bill and the matched return data. For services, you file the prescribed application (RFD-01). It needs no separate formula.

Time limit

Two years from the relevant date

Applies to the refund claim under section 54.

Key restrictions

No refund of unutilised ITC if goods are exported subject to export duty, or if drawback of central tax or refund of IGST is claimed on the same supply

Drawback of customs duty only is not a bar. Inverted duty refund under section 54(3)(ii) does not cover nil-rated or fully exempt output supplies, or goods or services notified by the Government on the recommendation of the Council.

How to solve Refund of Exports and Inverted Duty Structure questions

1. 1Identify the case. Is it a zero-rated supply (export or SEZ supply) or an inverted duty case where input rate exceeds output rate?
2. 2For zero-rated supply, decide the route: without payment of tax under LUT (refund of ITC) or with payment of IGST (refund of IGST paid).
3. 3Check the bars to refund. Look for export duty on the goods, drawback of central tax or IGST refund already claimed on the same supply, and nil-rated or exempt output in an inverted case.
4. 4Fix the turnover figure. For goods, take the lower of invoice value and FOB value. For services, take the amount permitted by the rules, such as realised foreign exchange.
5. 5Fix Net ITC. For zero-rated supply, take ITC availed on inputs plus input services, and exclude ITC for which refund is claimed under sub-rules (4A) or (4B). For inverted duty, take ITC on inputs only.
6. 6Compute Adjusted Total Turnover as other-than-zero-rated turnover (excluding exempt turnover) plus zero-rated turnover. Then apply the correct formula. In the inverted case, deduct the tax payable on the inverted supplies.
7. 7Compare the result with the balance in the electronic credit ledger. The refund is the lower figure.
8. 8State the conclusion with the time limit and what happens to the unrefunded credit.

Quickest way: Ratio method for refund of ITC

Common mistakes in Refund of Exports and Inverted Duty Structure

• Using the invoice value of exported goods when it is higher than the FOB value.

  Students take the invoice value because it is the figure given first.

  Fix: For goods, always take the lower of the invoice value and the FOB value shown on the shipping bill.

• Including input services in Net ITC for the inverted duty formula.

  Students copy Net ITC from the zero-rated formula, where input services count.

  Fix: In the inverted duty case use ITC on inputs only. Input services are excluded.

• Forgetting to subtract the tax payable on inverted supplies, or subtracting it in full.

  Students stop after the ratio × Net ITC step, or deduct the whole tax payable without scaling it.

  Fix: The Rule 89(5) formula ends with the deduction of tax payable on the inverted supplies, scaled by Net ITC ÷ ITC availed on inputs and input services. Always write that last step with the scaling ratio.

• Claiming refund of ITC on a supply where the exporter has also claimed drawback of central tax or refund of IGST on that same supply.

  Students treat the two routes as cumulative, or think any drawback is a bar.

  Fix: For a given supply, the routes are alternatives. Drawback of central tax or IGST refund on that supply bars the ITC refund. Drawback of customs duty only does not. The export duty bar is separate and applies where the goods exported are subject to export duty.

• Allowing inverted duty refund when the output supply is nil-rated or fully exempt, or when the goods or services are notified as excluded.

  Students see an input rate higher than the output rate and stop checking.

  Fix: Inverted duty refund does not apply to nil-rated or wholly exempt outputs, nor to goods or services notified by the Government on the recommendation of the Council. Check the output status and the notified list first.

• Treating the formula result as the refund without comparing it to the ledger balance.

  Students believe the formula output is always payable.

  Fix: The refund cannot exceed the ITC balance available in the electronic credit ledger. Take the lower figure.

• Taking Adjusted Total Turnover as only the zero-rated turnover, or including exempt turnover in it.

  Students do not recall the definition and use whatever turnover is given.

  Fix: Adjusted Total Turnover is turnover other than zero-rated supplies (excluding exempt turnover) plus zero-rated turnover. Build it line by line.

Worked examples