Why ITC on many indirect expenses fails under Section 17(5) of the CGST Act in 2026 and how to manage proportionate reversal under Rules 42 and 43.
Indirect expenses are the operating backbone of every business — rent, utilities, repairs, communication, staff welfare, marketing, professional services. A frequent misconception in FY 2026-27 is that GST paid on all these is eligible for input tax credit. The blocked-credit regime under Section 17(5) of the CGST Act and the use-condition under Section 17(1)-(2) cut a wide swathe through that assumption.
Foundational rule: ITC must be for taxable business use
Section 16(1) allows ITC only on inputs and input services used or intended to be used in the course or furtherance of business. Section 17(1) restricts ITC where supplies are partly used for non-business purposes; Section 17(2) restricts ITC on supplies used partly for taxable and partly for exempt outward supplies. Indirect expenses that flunk this test are ineligible regardless of how genuinely incurred.
Section 17(5) blocked credits affecting indirect expenses
- Motor vehicles and conveyance benefits to employees (with prescribed exceptions)
- Food, beverages, outdoor catering, beauty treatment, health services
- Membership of clubs, health and fitness centres
- Rent-a-cab, life insurance, health insurance — unless mandated by law for the employer
- Travel benefits to employees on vacation (e.g., LTC)
- Works contract services for construction of immovable property other than plant and machinery
- Goods or services received by a taxable person for construction of immovable property on its own account
- Goods or services used for personal consumption
- Goods lost, stolen, destroyed, written off or disposed of by way of gift or free sample
Indirect expense categories where ITC commonly fails
Examples include team off-sites and celebration dinners, festival hampers and gifts to clients, gym and club memberships, repair contracts on the corporate office building, employee health-check camps not mandated by law, free samples to dealers, and certain employee insurance covers. Each of these typically flags during ITC reviews and analytics scoring on the GSTN side.
Mixed-use expenses: proportionate reversal
- Identify common indirect expenses that serve both taxable and exempt or non-business activity
- Compute monthly Rule 42 reversal using exempt turnover ratio
- Apply Rule 43 for capital goods used for mixed supplies
- Reverse the proportionate ITC in GSTR-3B for the relevant period
- True up the reversal annually by September of the following financial year
Documentation and ERP hygiene
Maintain an ITC eligibility matrix mapped to GL accounts. Tag every vendor invoice in the ERP as eligible, blocked, or proportionate at the point of booking. Train procurement and AP teams on Section 17(5) periodically. Run monthly GSTR-2B reconciliation and document the eligibility reasoning for every ITC reversal — these notes become invaluable during scrutiny and audits.
Sectoral nuances
Different sectors face different ITC eligibility puzzles on indirect expenses. Manufacturing units must apply Rule 42 across plant overhead, R&D, and marketing services where any output is exempt. Service exporters with zero-rated supplies can usually claim full ITC on indirect inputs subject to Section 17(5), but must complete LUT filings and refund applications carefully. Construction and real-estate firms operating under the concessional rate scheme without ITC have nearly all indirect-expense GST as a cost.
Common scrutiny questions
- Justification for ITC on travel and conveyance — was it for business or personal?
- Documentary support for Rule 42 monthly reversals
- Treatment of free samples, gifts, and CSR-related supplies
- ITC on employee insurance — is the law mandate documented?
- ITC on works contract for plant and machinery — is the asset truly plant?
- ITC reversal on goods written off in the financial statements
Building a defensible position
- Document the business purpose of every indirect expense ITC claim
- Maintain board-approved policy on staff welfare and entertainment expenses
- Engage GST counsel for grey-area positions before claiming
- Disclose contingent liability where the position is aggressive
- Train internal stakeholders annually on Section 17(5) updates
CSR expenditure and ITC
CSR spending under Section 135 of the Companies Act has its own GST nuance. Per CBIC's clarifications and amendments to Section 17(5), ITC on goods or services used for CSR activities is blocked because CSR is treated as a statutory obligation that is not in the course or furtherance of business. Companies should bake this into their CSR budgets and not assume any GST input recovery on CSR-related procurement.
Conclusion
ITC on indirect expenses is a minefield where small assumptions multiply into large exposures. Use Section 17(5) as a daily reference, default to conservative treatment on grey-area items, and document every decision. Done well, the ITC ledger stays clean and the business avoids interest under Section 50 and penalty risk during GST audits.





