GST Refund Under Inverted Duty Structure (Rule 89(5))

Inverted duty structure refund is the most working-capital-relevant GST refund category for Indian manufacturers. The accumulation arises because the Input Tax Credit on raw materials and packaging carries a higher GST rate than the GST rate on the finished product, so the credit cannot be fully set off against output tax. Section 54(3) of the CGST Act 2017 permits refund of this unutilised ITC. Rule 89(5) of the CGST Rules 2017 prescribes the formula, last amended via Notification 14/2022-Central Tax dated 05 July 2022 applying prospectively per CBIC Circular 181/13/2022-GST.

From 01 October 2025, CGST Instruction 6/2025 dated 03 October 2025 (read with Notification 13/2025-Central Tax dated 17 September 2025 amending Rule 91(2)) allows a 90 percent provisional refund to be sanctioned on a system-driven risk-based basis. Notification 14/2025-Central Tax notifies the class of taxpayers ineligible for this benefit. Patron Accounting LLP files, defends, and recovers IDS refunds for Indian manufacturers in textile, pharma, fertilizer, footwear, EV, packaging, and edible oil with 15+ years of GST compliance and refund litigation experience.

Content is reviewed quarterly for accuracy.

Inverted duty structure typically arises in manufacturing sectors where finished goods sit in a lower GST slab than raw materials and packaging. The table below shows the most common IDS-affected industries with their input vs output GST rate spread.

Applicability gates: the supplier must be registered under GST, must have filed GSTR-1 and GSTR-3B for the refund period, the output supply must not be nil-rated or fully exempt, the goods must not be notified as ineligible (e.g., specific construction services under Notification No. 5/2017-CT (R), edible oil and coal under Notification 9/2022-CT, etc.), and the supplier must not have availed duty drawback or refund of IGST on the same supply.

If you are a manufacturer with these characteristics but have not yet registered under GST, complete GST registration before initiating any refund claim cycle.

Keep the following documents ready before filing each IDS refund cycle. Patron Accounting maintains a digital document vault per client with HSN-tagged input invoices.

Mandatory documents:

• GSTR-1 filed for every month in the refund period.
• GSTR-3B filed for every month in the refund period (refund cannot be claimed if 3B is unfiled).
• GSTR-2B for ITC reconciliation - Net ITC of inputs only must match books and 3B.
• Form RFD-01 with Statement 1 and Statement 1A pre-populated.
• Tax invoices for major inward supplies and outward inverted rated supplies.
• Declaration under Rule 89(2)(l) - applicant has not been prosecuted.
• Declaration under Rule 89(2)(m) - no other refund claim under any other provision.
• Undertaking on unjust enrichment if refund exceeds Rs 2 lakh.

Conditional documents (above Rs 2 lakh):

• CA or Cost Accountant certificate on unjust enrichment under Section 54(8) and Rule 89(2)(m).
• Computation sheet with HSN-wise rate map of inputs and outputs.
• Bank statement evidencing payment of GST on outward supplies.
• Reconciliation between GSTR-3B Net ITC and books of account.
• Declaration under second and third provisos to Section 54(3) (no nil/exempt output, no export duty).

All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.

Professional service charges for drafting, filing, and representation are separate from the statutory fees. The exact fee depends on the complexity of the case, disputed amount, and number of hearings required. Contact us for a detailed quote.

Get a free IDS Refund consultation - Call +91 945 945 6700 or WhatsApp us. No-obligation assessment.

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Outcome proof: A Pune-based textile manufacturer recovered Rs 3.2 crore in IDS refund for FY 2024-25 in November 2025. The 90 percent provisional refund (Rs 2.88 crore) sanctioned within 9 days of RFD-02; balance Rs 32 lakh in 47 days. Zero RFD-08 deficiency memos issued. The 12-month bunched filing under Circular 135/05/2020-GST consolidated 12 monthly refunds into one efficient cycle.

Trusted by Hyundai, Asian Paints, Bridgestone, and 200+ Indian manufacturers across textile, pharma, fertilizer, footwear, EV, packaging, and edible oil sectors. With offices in Pune, Mumbai, Delhi, and Gurugram, Patron Accounting serves businesses across India - both in-person and remotely.

IDS refund work integrates with Patron Accounting's broader GST compliance stack. Manufacturers commonly bundle the services below.

• GST refund (general) - the parent practice covering the full Section 54 spectrum including zero-rated exports, SEZ, excess payment, deemed exports under Rule 89(4) and 89(4B).
• GST registration - end-to-end registration including HSN classification for new manufacturing entities.
• GST returns filing - monthly GSTR-1 and GSTR-3B underpinning every IDS refund claim. Return mismatch is the most common cause of refund delay.
• GST annual returns - GSTR-9 and GSTR-9C reconciliation ensures Net ITC reconciles cleanly across the FY before any IDS refund claim is filed.
• GST audit support - for manufacturers above the prescribed turnover threshold.
• GSTAT appeal for exporters - GSTAT escalation when refund is blocked beyond Section 56 timelines or rejected in RFD-06.
• GST notice response - for RFD-08 show cause notices and scrutiny notices on IDS refund claims.

Section 54(3)(ii) of CGST Act 2017: The substantive right to refund. Refund of unutilised ITC allowed where credit accumulated due to rate of tax on inputs being higher than rate on output supplies, except nil-rated, fully exempt, or notified ineligible supplies.

Section 54(6) of CGST Act 2017: Provisional refund up to 90 percent. Originally limited to zero-rated supplies. Extended to IDS as interim measure under CGST Instruction 6/2025 pending formal amendment.

Section 54(7) of CGST Act 2017: Final refund order within 60 days of receipt of complete application.

Section 54(8) of CGST Act 2017: Unjust enrichment doctrine - refund credited to Consumer Welfare Fund unless claimant proves no passing on of incidence.

Section 56 of CGST Act 2017: Interest at 6 percent per annum on refund delayed beyond 60 days; 9 percent for refund pursuant to appellate orders.

Rule 89(5) of CGST Rules 2017: Maximum refund formula. Net ITC means ITC availed on inputs (goods) only, excluding input services and capital goods. Adjusted Total Turnover defined under Rule 89(4).

Rule 90 of CGST Rules 2017: Acknowledgement in RFD-02 within 15 days; deficiency memo in RFD-03 if application is incomplete.

Rule 91 of CGST Rules 2017 (as amended by Notification 13/2025-CT): Provisional refund of 90 percent. Officer may withhold provisional with reasons in writing under proviso to Rule 91(2).

Rule 92 of CGST Rules 2017: Final sanction order in RFD-06; payment advice in RFD-05.

CGST Instruction 6/2025 dated 03.10.2025: Risk-based system-driven provisional sanction. Extended 90 percent provisional refund to IDS for filings on or after 01.10.2025.

Landmark notifications and rulings:

• Notification 21/2018-CT (18.04.2018): Defined Net ITC under Rule 89(5) as ITC on input goods only with retrospective effect from 01.07.2017.
• Notification 14/2022-CT (05.07.2022): Introduced amended Rule 89(5) formula with proportionate subtraction term.
• Circular 125/44/2019-GST: Master refund procedure circular - lowest of three amounts test.
• Circular 135/05/2020-GST: Bunching of refund claims across financial years allowed.
• Circular 181/13/2022-GST: Confirmed amended Rule 89(5) formula applies prospectively from 05.07.2022.
• VKC Footsteps SC (2021) 9 TMI 626: Upheld Rule 89(5) restricting refund to input goods only.
• Safari Retreats SC (03.10.2024, review dismissed 20.05.2025): Functionality test under Section 17(5)(d) - unlocked ITC for builders but remains outside Rule 89(5) IDS pool.

Government references: GST portal, CBIC GST circulars and instructions, and indiacode.nic.in (CGST Act 2017).

IDS refund deadlines run off the 2-year limitation under Section 54(1). Missing the window is a permanent loss of refund. The recurring procedural deadlines are:

1. IDS refund time limit - 2 years from end of FY in which claim arises. Permanent loss of refund right under Section 54(1) if missed.
2. RFD-01 filing post-amended formula - on or after 05 July 2022, the amended formula under Notification 14/2022-CT applies (per Circular 181/13/2022-GST).
3. RFD-02 acknowledgement - within 15 days of RFD-01 (Rule 90(2)). If officer fails, escalate via grievance.
4. RFD-04 provisional sanction - 90 percent within 7 days of RFD-02 (low-risk). Officer must record reasons in writing if withheld.
5. RFD-06 final sanction - within 60 days of RFD-02. Section 56 interest auto-triggers Day 61.
6. RFD-08 show cause response - 15 days from receipt. Adverse order without response is appealable under Section 107.
7. Section 107 appeal - within 3 months of refund rejection. Pre-deposit 10 percent of disputed amount.
8. Section 109 GSTAT appeal - within 3 months of Appellate Authority order. Additional 10 percent pre-deposit.

Get your IDS refund eligibility assessment now - Call +91 945 945 6700 or WhatsApp us. Share 12 months of GSTR-3B and GSTR-2B; we return refund quantum estimate and risk score within 4 business hours.

GST refund under inverted duty structure is the most working-capital-relevant GST refund category for Indian manufacturers in textile, pharma, fertilizer, footwear, EV, packaging, and edible oil. Section 54(3)(ii) of the CGST Act 2017 read with Rule 89(5) of the CGST Rules 2017 governs the substantive right and the formula. The 2022 amendment via Notification 14/2022-CT introduced a proportionate subtraction term, and CGST Instruction 6/2025 dated 03 October 2025 enables a 90 percent provisional refund within 7 days for low-risk claims filed on or after 01 October 2025.

The exclusion of input services and capital goods (upheld by the Supreme Court in VKC Footsteps) and the post-Safari Retreats reality that newly unlocked construction-side ITC remains outside Rule 89(5) Net ITC together define the strategic ceiling on refund value. Patron Accounting LLP brings 15+ years of GST refund and Rule 89(5) computation experience across 200+ Indian manufacturers, with four physical offices in Pune, Mumbai, Delhi, and Gurugram. Manufacturers gain CA-led Net ITC segregation, risk-pre-audited filings optimised for the 90 percent provisional path, and litigation-grade documentation that survives RFD-08 scrutiny and Section 107 or 109 appeal.