Inverted Duty Structure Refund under GST Rule 89(5)

Understand Inverted Duty Structure Refund

Key rules to remember

Rule 89(5) maximum refund

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

The result is the maximum admissible refund. If it is zero or negative, no refund is due.

Net ITC (rule 89(5))

Net ITC = ITC availed on inputs during the relevant period

Input services are not part of Net ITC for this formula. They appear only in the denominator of the second part.

Adjusted Total Turnover (as in rule 89(4))

Adjusted Total Turnover = turnover in the State/UT excluding services turnover + turnover of zero-rated services + non-zero-rated services, less exempt supplies other than zero-rated

Rule 89(5) takes this meaning from rule 89(4). Exempt supplies (other than zero-rated) are left out.

Relevant period

Relevant period = the period for which the refund claim is filed

Turnover and ITC are taken for the same period.

Debit of ledger

Electronic credit ledger is debited by the refund amount claimed

Rule 89(3). The debit is made when the application relates to refund of ITC.

How to solve Inverted Duty Structure Refund questions

1. 1Confirm the refund is of the inverted-rate type: input rate higher than output rate, and the outputs are not nil-rated or fully exempt. Check whether the question says the goods or services are notified as excluded.
2. 2Identify the relevant period (the month or period for which the claim is filed). Use data for that period only.
3. 3Find Net ITC. Take ITC on inputs only. Leave out input services and capital goods.
4. 4Find total ITC on inputs and input services. This is the denominator of the second part.
5. 5Find Adjusted Total Turnover. Remove exempt supplies other than zero-rated supplies. Remember the services element in the definition.
6. 6Compute part 1: inverted turnover × Net ITC ÷ Adjusted Total Turnover.
7. 7Compute part 2: tax payable on the inverted supplies × Net ITC ÷ total ITC on inputs and input services.
8. 8Refund = part 1 − part 2. State it as the maximum refund, and note that the amount is debited from the credit ledger.

Quickest way: Three-line shortcut for rule 89(5)

Common mistakes in Inverted Duty Structure Refund

• Including ITC on input services in Net ITC.

  Students remember rule 89(4), where Net ITC covers inputs and input services.

  Fix: In rule 89(5), Net ITC is ITC on inputs only. Use input services credit only in the denominator of part 2.

• Ignoring the ratio in the second part and deducting the full output tax.

  Students recall the older formula, which deducted only the tax payable.

  Fix: Multiply the tax payable by Net ITC ÷ ITC on inputs and input services. It equals 1 only when there are no input services.

• Not removing exempt supplies from Adjusted Total Turnover.

  Students use total turnover from the question without reading the definition.

  Fix: Deduct exempt supplies other than zero-rated supplies. Then divide.

• Treating nil-rated or fully exempt outputs as eligible for inverted refund.

  Students see higher input tax and a lower output rate and stop there.

  Fix: Section 54(3) excludes nil-rated and fully exempt supplies. A nil rate is not an inverted rate for this refund.

• Presenting the formula result as the amount that will definitely be paid.

  The formula gives the ceiling, and students forget it.

  Fix: Write 'maximum refund admissible'. Also note that the refund cannot exceed the credit balance in the ledger.

• Using the turnover of the whole year with the credit of one month.

  Data in the question is given for different periods.

  Fix: Use the relevant period, the period for which the claim is filed, for turnover and ITC alike.

Worked examples