GST RFD-01 Monthly Filing for Specialty Chemical Inverted-Duty Refund

An illustrative Tier-2 Indian specialty aliphatic amines producer running plants at Kurkumbh in Maharashtra and Patalganga in Maharashtra closes its August 2026 books. The plant network produces methylamine, ethylamine, dimethylamine and diethylamine under HSN Chapter 29 (headings 2921 and 2922) — the core aliphatic amines that supply into agrochemical, pharmaceutical intermediate and rubber-chemical downstream customers. A portion of the outward supply stream — the specialty derivatives feeding into 5 percent output value chains (agrochemical intermediates classified under specific 5 percent HSN codes, and pharmaceutical intermediates supplied to formulators against Section 74 or IGST customer-specification arrangements) — sits under an inverted duty structure against the manufacturer’s own 18 percent Chapter 29 raw material and 18 percent Chapter 27 solvent input base. Every tax period accumulates unutilised input tax credit that must be recovered through GST RFD-01 monthly filing specialty chemical inverted duty refund claims under Rule 89(5) of the CGST Rules 2017. The month-end workflow runs a tight 30 to 45 day cycle from input-register close through GSTR-3B tie-out to portal submission, and the Section 54(6) provisional 90 percent refund arrives in Form GST RFD-04 within seven days of application acknowledgement. This article walks the operating discipline that separates a clean monthly filing from a deficiency-memo cycle.

Quick reference

The reconciliation in one paragraph

A specialty chemical manufacturer whose output stream includes an inverted-rated leg (5 percent Chapter 29 or agrochemical HSN codes) against a rate-heavier input base (18 percent packaging under Chapter 39, 18 percent solvents under Chapter 27, 18 percent Chapter 29 intermediates) accumulates unutilised input tax credit in its electronic credit ledger every tax period. Section 54(3) of the Central Goods and Services Tax Act 2017 permits a refund of that credit; Rule 89(5) of the CGST Rules 2017, as amended prospectively by Notification 14/2022-Central Tax dated 5 July 2022, gives the formula. Net ITC in the numerator excludes input services and capital goods (a position codified in the amendment and settled at the Supreme Court in VKC Footsteps). The refund is filed monthly on Form GST RFD-01 per state GSTIN on the GST portal, with a Statement 1A invoice-level annexure covering the inputs, a Statement 3A outward-supply annexure covering any zero-rated leg, and an undertaking under Rule 89(2)(l) and Rule 89(2)(m). The portal auto-acknowledges the complete application in Form GST RFD-02 within 15 days. Section 54(6) authorises a provisional refund of up to 90 percent in Form GST RFD-04 within seven days of the RFD-02 acknowledgement date. Where the proper officer identifies a defect, Form GST RFD-03 is issued and the application is deemed not filed for the two-year window under Section 54(1) — the fresh filing after rectification must still fall inside the two years counted from the original relevant date. The final sanction in Form GST RFD-06 follows scrutiny and is required within 60 days per Section 54(7).

What the scenario looks like in India

The Indian aliphatic amines sub-sector is concentrated in Maharashtra and Gujarat — the two states that historically hosted the largest bulk-chemistry footprints and continue to anchor the bulk of new capacity in the segment. Aliphatic amines producers such as Alkyl Amines Chemicals (headquartered in Mumbai with primary plants at Kurkumbh in Maharashtra and Patalganga in Maharashtra) and Balaji Amines (headquartered in Solapur) supply methylamine, ethylamine, dimethylamine (DMA), diethylamine (DEA) and their derivatives to downstream agrochemical formulators, pharmaceutical intermediate manufacturers, rubber-chemical customers and water-treatment applications. Aromatic and heterocyclic amine producers such as Aarti Industries (headquartered in Mumbai with plants across the Gujarat GIDC belt in Vapi, Jhagadia and Sarigam), Deepak Nitrite (headquartered in Vadodara with the flagship phenol-acetone complex at Dahej) and Atul Ltd (part of the Lalbhai group, headquartered in Valsad) run parallel chemistry with a similar Rule 89(5) refund cycle mechanic. Vinati Organics at Lote in Maharashtra, Anupam Rasayan and Navin Fluorine at Surat, and Fine Organic Industries at Ambernath and Dahej round out the Tier-2 specialty landscape.

For the reconciliation this article walks through, the illustrative reference persona is a Tier-2 aliphatic amines producer running two plants: an anchor plant at Kurkumbh in Maharashtra with an FY 2026-27 monthly outward supply of the order of Rs 45 to 55 crore under a single Maharashtra GSTIN, and a second plant at Patalganga in Maharashtra under the same Maharashtra GSTIN. A portion of the outward supply stream — the specialty derivative products supplied into 5 percent HSN downstream chains — attracts the inverted-duty overhang; the balance of the outward supply, at 18 percent under Chapter 29, does not. The monthly Form GST RFD-01 refund claim against the accumulated inverted-duty ITC runs of the order of Rs 1.6 to 2.5 crore per GSTIN, depending on the month-to-month mix between 18 percent and inverted-rated output volume. The workflow this article walks is the standing month-end discipline that produces that claim, cleanly, every tax period.

The regulatory overlay — the RFD-01 stack from Section 54 through the CGST Rules

Four regulatory anchors govern the specialty chemical manufacturer’s monthly Form GST RFD-01 filing cycle. All four sit in the CGST Act 2017 and the CGST Rules 2017, with the substantive amendments coming through the July 2022 notifications.

Section 54(1) of the Central Goods and Services Tax Act 2017 sets the two-year time limit. Any person claiming refund of tax or interest paid, or of the unutilised input tax credit accumulated under Section 54(3), must make the application within two years from the relevant date. For an inverted-duty refund claim, the relevant date is defined as the last day of the tax period in respect of which the refund claim is made. For a monthly filer, that is the last day of the month for which the refund is claimed. The two-year window is preserved across a Form GST RFD-03 deficiency-memo cycle — a fresh application after rectification counts from the original relevant date, not from the RFD-03 date.

Section 54(3) permits the refund itself. A registered person may claim refund of any unutilised input tax credit at the end of any tax period where the credit has accumulated on account of the rate of tax on inputs being higher than the rate of tax on output supplies — the inverted duty structure. The first proviso empowers the government to notify supplies against which refund of unutilised ITC shall not be allowed; Notification 09/2022-Central Tax (Rate) invokes this proviso for HSN Chapter 15 and Chapter 27 output supplies. The Supreme Court in Union of India v. VKC Footsteps India Pvt Ltd (2021) 10 SCC 674 upheld the statutory scheme and confirmed the exclusion of input services and capital goods from the Net ITC base.

Section 54(6) is the operating cash-flow anchor. It authorises the proper officer to sanction, on a provisional basis, a refund of ninety percent of the amount claimed, in the case of a claim for refund of unutilised input tax credit under Section 54(3), within seven days from the date of acknowledgement of the application. The seven-day window is the treasury-planning anchor: the manufacturer models a T plus 45 to T plus 60 arrival of the provisional refund against every monthly RFD-01 filing (T being the last day of the tax period), accounting for the internal filing lag from month-end and the RFD-02 acknowledgement window plus the seven-day sanction. Section 54(7) requires the proper officer to issue the final refund order under Section 54(5) within sixty days from the date of receipt of a complete application; the ten percent balance is released against Form GST RFD-06 following scrutiny.

Rule 89 of the CGST Rules 2017 gives the procedural mechanics. Sub-rule (2) prescribes the documents and statements accompanying the RFD-01 application, including Statement 1A for inverted-duty invoice-level input register, Statement 3A for zero-rated outward-supply invoices, the undertaking under sub-rule (2)(l) that the refund amount claimed has not been passed on to any other person, and the declaration under sub-rule (2)(m). Sub-rule (5), as amended by Notification 14/2022-Central Tax dated 5 July 2022, gives the refund formula: Maximum Refund Amount = (Turnover of inverted-rated supply of goods and services × Net ITC / Adjusted Total Turnover) minus (Tax payable on such inverted-rated supply × Net ITC / ITC availed on inputs and input services). Net ITC in the numerator excludes input services and capital goods. The 5 July 2022 amendment applies prospectively — applications filed on or after that date use the amended formula.

A worked example — an illustrative Kurkumbh plant August 2026 close

Illustrative — the following figures represent the operating pattern of a Tier-2 aliphatic amines producer running the Maharashtra plant footprint that Indian large-cap and mid-cap listed specialty chemical companies operate. Public disclosures do not reveal per-GSTIN per-month inverted-duty refund quantum in the granularity below; cross-verify against your own GSTR-1 and GSTR-2B extracts before action.

The manufacturer’s Maharashtra GSTIN closes August 2026 with the following outward and inward supply position, in Rs crore for the tax period:

For the Notification 14/2022 amended Rule 89(5) formula, the inputs to the calculation for the Kurkumbh GSTIN August 2026 tax period are:

• Turnover of inverted-rated supply: Rs 8.0 crore (the 5 percent-output leg only; the 18 percent output leg is not inverted and is excluded from the Rule 89(5) turnover numerator per Section 54(3))
• Net ITC (goods inputs only, per Notification 14/2022): a proportional allocation of the Rs 5.54 crore aggregate eligible-input ITC to the inverted-rated turnover leg — for illustration, using a straightforward turnover-based apportionment across the Rs 50 crore aggregate domestic outward supply, the inverted-rated leg carries approximately Rs 5.54 × 8.0 / 50.0 = Rs 0.89 crore of Net ITC directly attributable
• Adjusted Total Turnover for the Rule 89(5) denominator (as defined in Rule 89(4)(E)): total turnover of Rs 57 crore less exempt supplies (nil here), giving Rs 57 crore
• Tax payable on the inverted-rated supply: Rs 8.0 crore × 5 percent = Rs 0.40 crore
• ITC availed on inputs and input services (denominator of the second-limb ratio): allocated Rs 0.89 crore (goods) plus the input-services share of Rs 1.17 × 8.0 / 50.0 = Rs 0.19 crore, giving Rs 1.08 crore

Applying the amended Rule 89(5) formula for the inverted-rated leg: first limb = (8.0 × 0.89 / 57.0) = Rs 0.125 crore; second limb = (0.40 × 0.89 / 1.08) = Rs 0.33 crore; maximum refund per the strict per-leg apportionment shows a modest quantum against the small inverted-rated leg in this illustrative month.

For a manufacturer that runs a materially larger inverted-rated share — say, Rs 38 crore of monthly inverted-rated outward supply against Rs 45 crore of Adjusted Total Turnover — the Rule 89(5) formula yields a monthly refund claim of the order of Rs 1.6 to 2.5 crore per GSTIN. The illustrative filing pack packages this into Form GST RFD-01 with Statement 1A carrying every one of the invoice-level input rows tagged by HSN, tax rate and Notification 09/2022 Chapter 27 blockage-relevance flag (the Chapter 27 solvent leg is disclosed transparently, at Rs 0.81 crore of the Rs 5.54 crore aggregate eligible-input ITC pool, or 14.6 percent — a defence-ready disclosure line for any officer challenge on the interpretive Chapter 27 solvent carve-out that some proper officers apply at scrutiny).

The Form GST RFD-01 is uploaded on the GST portal by T plus 30 (30 September 2026 for the August 2026 tax period). Form GST RFD-02 auto-acknowledges the complete application within 15 days. Form GST RFD-04 sanctions the provisional 90 percent refund within seven days of the RFD-02 date. Form GST RFD-06 releases the final 10 percent balance following scrutiny, typically 90 to 120 days from the RFD-01 filing date. The treasury projection register maps each of these dates to expected cash-flow.

Common reconciliation breakages

Five recurring breakages produce most of the deficiency-memo cycles that Indian specialty chemical manufacturers absorb on their monthly RFD-01 filings, and each maps to a specific control failure that the reconciliation failure mode analysis discipline can catch upstream.

• Statement 1A total not tied to the GSTR-3B Table 4A figure. The most common trigger for a Form GST RFD-03 deficiency memo is a variance between the Statement 1A invoice-level input register total and the GSTR-3B Table 4A ITC figure filed for the same tax period. The variance is legitimate — Statement 1A covers only goods inputs feeding Net ITC, while Table 4A covers goods inputs plus input services plus capital goods — but must be explained on a defined reconciliation register: Table 4A total, less input-services ITC, less capital-goods ITC, less Table 4B reversals, less any Chapter 27 output carve-out, equals Statement 1A Net ITC. Manufacturers that upload Statement 1A without the tie-out register invite a deficiency memo demanding the reconciliation, and lose four to six weeks in the response cycle.

• Input-services and capital-goods ITC bleed into Net ITC. The Notification 14/2022 amendment and the VKC Footsteps judgment both codified the exclusion, but manufacturers that treat the entire GSTR-2B ITC pool as Net ITC produce an over-stated refund claim that the proper officer rejects at scrutiny. The failure mode has a mirror in the pharma cluster — the Rule 89(5) refund playbook for pharma formulations walks the same exclusion mechanic in the Chapter 30 medicaments context. Reconciliation discipline: the input-services and capital-goods ledgers must be extracted from GSTR-2B at source and held in separate accounting buckets, with the Net ITC formula drawing only from the goods-input register.

• Adjusted Total Turnover misdefined. Adjusted Total Turnover in the Rule 89(5) denominator, as defined in Rule 89(4)(E), is total turnover less exempt supply turnover. Manufacturers with a mixed portfolio — 18 percent domestic outward supplies, 5 percent inverted-rated outward supplies, zero-rated exports with Letter of Undertaking, and any nil-rated supplies — that fold the entire aggregate turnover into Adjusted Total Turnover without segregating the exempt leg mis-scale the ratio and produce an incorrect maximum refund. Reconciliation discipline: build the Adjusted Total Turnover register as an explicit register keyed to supply type, and feed only the eligible legs into the denominator.

• Chapter 27 solvent leg of Net ITC undisclosed. For a Chapter 29 specialty chemical manufacturer using Chapter 27 solvents (isopropyl alcohol, methanol, toluene, methyl ethyl ketone) as process inputs, the Chapter 27 solvent proportion of Net ITC is the surface where field-officer scrutiny concentrates. Notification 09/2022 directly blocks refund on Chapter 27 OUTPUT supplies; a Chapter 29 manufacturer’s refund is not directly barred, but the Chapter 27 solvent LEG of the input ITC pool is often the subject of an interpretive carve-out challenge at scrutiny. The Notification 09/2022 Chapter 27 solvent blocked refund walkthrough for pharma walks the same interpretive tension in the API-solvent context and remains the reference for the defensible position. Reconciliation discipline: the Statement 1A annexure discloses the Chapter 27 solvent leg explicitly and the workbook holds both the base-case computation (solvent included) and the carved-out computation (solvent excluded).

• Deficiency-memo response cycle not aligned to the two-year window. When Form GST RFD-03 is issued, the original application is deemed not filed for the Section 54(1) two-year time-limit computation, but the fresh application after rectification must still fall inside the two years counted from the original relevant date. Manufacturers that treat the RFD-03 as a fresh-start clock and drift into a rectification cycle that pushes the refile past the two-year window lose the refund entirely. The Terra Insight human errors and detection envelope reference walks the deadline-drift failure mode in the broader controller context; the specific discipline here is a two-year filing-window monitor per tax period that flags any refund claim approaching the statutory limit.

How a reconciliation platform handles this

A purpose-built chemical reconciliation platform ingests the plant-level GSTR-1 outward supply register, the GSTR-2B auto-populated ITC statement, the plant’s own accounting ledger and vendor-invoice master, and produces a Form GST RFD-01 filing pack per state GSTIN per tax period: the GSTR-3B Table 4A to Statement 1A tie-out register, the Rule 89(5) formula computation with Net ITC decomposed by input HSN chapter and correctly excluding input services and capital goods, the Statement 1A invoice-level annexure with HSN and tax-rate tags per line and a Notification 09/2022 Chapter 27 blockage-relevance flag, the Statement 3A outward-supply annexure for any zero-rated leg, the undertaking and declaration under Rule 89(2)(l) and (m), and the ready-to-upload RFD-01 draft. A rolling refund pipeline register maps every filed RFD-01 to its RFD-02 acknowledgement, its RFD-04 provisional 90 percent sanction (within seven days), any Form GST RFD-03 deficiency memo with the rectification action log and the Section 54(1) two-year-window monitor, and its Form GST RFD-06 final sanction. Match rate improvement of 51 to 88 percent on the GSTR-2B to accounting ITC reconciliation — combined with an ISO 27001:2022 posture, DPDP Act 2023 aligned data handling and hosting on AWS Mumbai — is what makes the platform an infrastructure investment for a Tier-2 specialty chemical manufacturer running the standing monthly RFD-01 cycle across a two-plant Maharashtra footprint, rather than a spreadsheet substitute.

Cross-cluster bridges and where to read next

The RFD-01 monthly filing workflow documented in this article sits alongside a family of Wave 1 Chemicals cluster companions covering the substantive Rule 89(5) mechanics. The Rule 89(5) inverted-duty refund for specialty chemicals in India walkthrough is the cornerstone reference on the formula itself, the input HSN composition, and the interaction with the July 2022 amendments. The Net ITC input-services exclusion under Rule 89(5) for chemicals refund walkthrough goes deep on the exclusion mechanic that produces the highest-frequency deficiency-memo trigger. The Notification 14/2022 Rule 89(5) formula amendment walkthrough for chemicals documents the prospective amendment and its retro-treatment for pre-cutover applications.

The Rule 89(5) mechanic is common across inverted-duty industries. The Rule 89(5) refund complete guide for pharma formulations is the cross-cluster sibling in the pharma context — the Chapter 30 formulator’s RFD-01 pack is structurally identical to the Chapter 29 aliphatic amines manufacturer’s, differing only in the input HSN composition of Net ITC. The dairy inverted-duty refund under Rule 89(5) post GST 2.0 walkthrough shows the same mechanic against packaged milk at 5 percent output. The edible oil Chapter 15 inverted-duty refund blocked under Notification 09/2022 walkthrough covers the direct-block mechanic on Chapter 15 output — the parallel Notification 09/2022 arm to the Chapter 27 arm that touches specialty chemical solvent inputs.

The methodology framework for building the standing monthly filing discipline — mapping every reconciliation surface to a defined control, holding both base-case and defence-case computations, and building the deficiency-memo response cycle into the standing close process — sits in the reconciliation playbook for monthly close operations pillar. The commercial pillar for the sub-cluster is Chemical reconciliation software India; the broader authority for the platform is reconciliation software India with the specialised GST reconciliation software surface for the Section 54(3) refund workflow.

The five FAQs below address the operational questions Indian specialty chemical indirect-tax leads and plant controllers ask most often when building a standing monthly Rule 89(5) RFD-01 filing cycle.

Terra Insight Editorial Team Reconciliation Infrastructure

Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →

Published 22 July 2026

Domain expertise

TDS Reconciliation GST Input Credit Platform Settlements NACH Batch Matching Bank Reconciliation Form 26AS Matching ERP Integrations Enterprise Finance Ops

Reviewed by

NK

Navin Krishnan

Managing Director & Founder — Terra Insight

Ex Amazon India · Intuit QuickBooks · Tata nexarc

ISO 27001:2022 Patent Pending Incorporated 2024