CBIC Clarifies 50% GST Input Tax Credit Option for Banks, NBFCs and Financial Institutions

Summary: The Central Board of Indirect Taxes and Customs (CBIC), through Circular No. 261/07/2026-GST dated 26 October 2026, has clarified the application of the special 50% input tax credit mechanism under Section 17(4) of the CGST Act, 2017, for banking companies, financial institutions and Non-Banking Financial Companies (NBFCs). The circular addresses uncertainties concerning the eligibility of different GST registrations, mandatory uniformity among registrations engaged in accepting deposits or extending loans, and the treatment of inter-branch supplies between distinct persons having the same PAN. It also explains the conditions for applying the second proviso to Section 17(4) and prescribes detailed reporting procedures for eligible ITC, permanent reversals and temporary reversals in Form GSTR-3B. Special attention is given to the interaction between the 50% ITC option and the Invoice Management System (IMS), including the treatment of pending supplier invoices and their subsequent acceptance. The clarification distinguishes registrations exclusively engaged in activities outside the qualifying banking or lending functions from registrations eligible to exercise the statutory option. Importantly, CBIC has also directed field authorities not to take an adverse view of different reporting methodologies adopted during earlier periods where the net ITC availed complies with the substantive statutory requirements. These clarifications have significant implications for multi-state banks, NBFCs and financial institutions, particularly in relation to ERP controls, centralized procurement, inter-branch transactions, input tax credit reconciliations, audit documentation and legacy GST disputes.

Comprehensive Analysis of CBIC Circular No. 261/07/2026-GST: Decoding the Nuances of Section 17(4) for Banks, FIs, and NBFCs

Introduction

The taxation of banking companies, financial institutions, and Non-Banking Financial Companies (NBFCs) under the Goods and Services Tax (GST) regime has historically been fraught with interpretive challenges. Given the decentralized nature of financial operations, massive procurement volumes across multiple States, and the intricate interplay between taxable and exempt financial supplies, the Input Tax Credit (ITC) mechanism under Section 17(4) of the CGST Act, 2017 has been a frequent subject of departmental scrutiny and litigation.

To bring absolute certainty, uniformity, and administrative clarity across the country, the Central Board of Indirect Taxes and Customs (CBIC) has issued Circular No. 261/07/2026-GST dated 26.10.2026. This landmark circular addresses structural ambiguities surrounding applicability, inter-branch transfers, Invoice Management System (IMS) integration, GSTR-3B reporting mechanics, and transitional relief for past periods.

In this detailed technical deep-dive, we dissect every facet of the new circular to help tax professionals, corporate finance teams, and compliance officers bulletproof their GST processes.

1. Statutory Framework and Core Options under Section 17(4)

Under Section 17(4) of the CGST Act, 2017, a banking company or a financial institution including an NBFC engaged in accepting deposits or extending loans or advances has been granted a special statutory dispensation. Instead of maintaining separate accounts and undertaking complex, proportional reversals of ITC attributable to exempt supplies under Section 17(2) read with Rules 42 and 43, such entities can opt for a simplified statutory formula:

• Avail 50% of the eligible input tax credit on inputs, capital goods, and input services for the month.
• Permanently forfeit and reverse the remaining 50% of the eligible ITC.

While this option provides administrative relief, Circular No. 261/07/2026-GST clarifies several critical operational boundaries that taxpayers must strictly adhere to.

2. Applicability, Exclusions, and the Mandatory “All-Registrations” Rule

Exclusively Non-Lending Registrations Are Out of Scope

The circular clarifies that distinct registrations (distinct persons under Section 25) operating under the same PAN that are not engaged in accepting deposits or extending loans and advances—such as a specialized bullion trading unit or a separate corporate services vertical—are neither eligible nor required to opt for Section 17(4). Such units must follow the standard ITC provisions under Sections 16 and 17(1)/(2).

The Absolute Uniformity Mandate Across Lending Registrations

One of the most critical takeaways for multi-state financial institutions is the mandatory uniformity rule:

• If an eligible banking company or NBFC has multiple GST registrations (distinct persons) across various States/UTs, and even one such eligible registration opts for Section 17(4), all other registrations of that entity that are also engaged in accepting deposits or extending loans must uniformly adopt Section 17(4).
• Cherry-picking different compliance methodologies across lending branches under the same PAN is strictly impermissible under the statutory architecture.

3. Decoding Inter-Branch Supplies under the Second Proviso to Section 17(4)

Financial institutions heavily rely on inter-branch services, shared overheads, and centralized procurement distributed via Rule 54(1A).

• The Scope of Relaxation: The second proviso to Section 17(4) provides a specific relaxation allowing certain inter-branch credit flows without triggering standard blocking.
• The Strict Caveat: The circular reiterates that this relaxation is strictly available only for supplies received from another registered person having the same PAN who has also opted for Section 17(4).
• Audit Implication: Corporate tax teams must establish automated validation rules within their ERPs to verify that an originating service branch has active Section 17(4) status before applying the second proviso relaxation on internal billings.

4. GSTR-3B Reporting Mechanics & Integration with the Invoice Management System (IMS)

The circular lays down step-by-step reporting instructions for GSTR-3B, distinguishing between environments where the Invoice Management System (IMS) is utilized versus historical/manual tracking.

Step 1: Initial Eligibility and Permanent Reversals

• Taxpayers must first ascertain baseline ITC eligibility from GSTR-2B (excluding Reverse Charge Mechanism supplies) and factor in RCM credit.
• Table 4(B)(1) Reversals: Non-business use ITC and credits blocked under Section 17(5) must be reversed permanently in Table 4(B)(1).

Step 2: Executing the 50% Rule

• Once permanent reversals and Section 16 checks are accounted for, the taxpayer must avail the eligible credit in full, and then avail 50% of the remaining credit, with the balance 50% reversed permanently in Table 4(B)(1).

Step 3: Handling Pending Invoices (IMS vs. Non-IMS Workflows)

• Where IMS is NOT used: ITC that cannot be ascertained as eligible due to unmet Section 16 conditions (e.g., pending goods receipt or vendor non-compliance) must be reversed temporarily in Table 4(B)(2). Once conditions are subsequently fulfilled, the ITC can be reclaimed in Table 4(A)(5) of a later period, subject once again to the 50% procedure.
• Where IMS is active/mandatory: Taxpayers interact directly with supplier invoices via IMS (Accept, Reject, or Keep Pending). Invoices whose ITC is presently ineligible under Section 16 but expected to materialize later must be marked as Pending. Such pending invoices do not appear in GSTR-2B or auto-populate into GSTR-3B. Once conditions are satisfied, accepting the pending invoice on IMS pushes it into GSTR-2B and auto-populates GSTR-3B for that tax period. It is then subjected to the 50% procedure, with the remaining 50% permanently reversed in Table 4(B)(1).

5. Relief for Past Periods: A Pragmatic Administrative Stand

Recognizing that financial institutions across India have historically adopted diverse accounting, ERP configuration, and GSTR-3B reporting methodologies to implement the 50% restriction, the CBIC has adopted a pragmatic approach:

• Directive to Field Authorities: Tax authorities have been explicitly advised not to take an adverse view of different methodologies followed for reporting ITC availment and reversal in past financial periods.
• The Overriding Condition: This administrative immunity holds true provided that the total net ITC availed by the institution under Section 17(4) across the financial year is in accordance with the substantive statutory principles clarified in the circular.
• This directive brings closure to numerous legacy audits and pending notices centered purely on technical reporting discrepancies rather than revenue leakage.

Concluding Remarks

Circular No. 261/07/2026-GST is a comprehensive masterclass in resolving industry-specific tax friction. By clarifying the “all-registrations” uniformity rule, harmonizing Section 17(4) workflows with the modern Invoice Management System (IMS), and offering a much-needed amnesty for past reporting practices, the CBIC has provided robust legal backing to the financial sector.

Tax heads and financial controllers in banks and NBFCs must immediately review their IT systems, inter-branch invoicing agreements, and GSTR-3B filing templates to ensure seamless alignment with these clarifications.

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Disclaimer: The views expressed in this article are strictly professional and intended for general guidance.

About the Author: CA. KGS is a seasoned Chartered Accountant specializing in Indirect Taxation, GST policy advisory, and corporate compliance.