Blocked ITC Under GST: Section 17(5) Exception Evidence and GSTR-3B Controls

Summary : Section 17(5) of the CGST Act overrides the general business-use logic for specified inward supplies. A purchase can be genuine, taxed, recorded in GSTR-2B and used for business yet remain ineligible. The practical control is therefore invoice-specific classification followed by exception testing and documented reporting. Motor vehicles for transport of persons with approved seating capacity not exceeding 13 persons are blocked unless used for further supply, passenger transport or driving training; related insurance, servicing and repair have linked exceptions. Food, catering, beauty, health, specified leasing or hiring, life and health insurance, club or fitness membership and vacation travel benefits require a close reading of the same-category, composite-supply and employer-obligation exceptions. Works-contract and own-account construction restrictions turn on immovable property, capitalisation and the statutory definition of plant and machinery. Current law also blocks CSR-related inputs and preserves the exclusions for personal consumption, gifts, free samples, lost or written-off goods and specified tax payments. Since the 2025 amendment, the own-account construction clause must be read with “plant and machinery” retrospectively from 1 July 2017 and the new clarification. A defensible file links the invoice, asset or beneficiary, outward-supply purpose, legal obligation, accounting treatment and return disclosure. Circular 170/02/2022-GST directs ineligible section 17(5) credit to Table 4(B) of GSTR-3B, not Table 4(D).

Section 17(5) Is a Statutory Veto, Not an Apportionment Formula

Sections 17(1) and 17(2) restrict credit for non-business and exempt use; Rules 42 and 43 provide attribution mechanisms for common inputs, services and capital goods. Section 17(5) is different. It identifies categories for which credit is not available notwithstanding section 16(1), subject to written exceptions. A Rule 42 or Rule 43 computation cannot convert a blocked invoice into eligible credit, and an invoice should not be placed in the common-credit pool before the section 17(5) screen is performed.

The first-level control should code every potentially blocked invoice by statutory clause and exception. A generic label such as “staff welfare” or “capital project” is insufficient because one cost centre can contain eligible and ineligible items. The reviewer should preserve the supplier invoice, purchase order, contract, usage record, asset register and a short legal conclusion. GSTR-2B availability is a matching control, not a legal approval.

Vehicles, Vessels, Aircraft and Related Services Need Two Tests

Passenger vehicles with up to 13 seats

Credit is blocked on motor vehicles used for transportation of persons when approved seating capacity, including the driver, is not more than 13. The block does not apply when the vehicle is used for further supply of such vehicle, transportation of passengers or imparting training on driving. The evidence should establish both the vehicle specification and the taxpayer’s outward use. An occasional business trip or employee movement does not by itself become taxable passenger transportation.

Transport equipment and insurance or repair services

Vessels and aircraft are blocked subject to statutory exceptions including further supply, passenger transport, training and specified transportation of goods. Insurance, servicing and repair of the covered vehicles, vessels or aircraft are also blocked, but exceptions apply where the underlying asset is used for an allowed purpose and for manufacturers or general insurers in the cases stated in the clause. The service invoice should be linked to the registration number or asset and to the outward activity; a fleet-level assertion is weak evidence.

Employee Benefits Are Not Governed by One Blanket Rule

Section 17(5)(b) covers food and beverages, outdoor catering, beauty treatment, health services, cosmetic and plastic surgery, leasing or hiring of the specified vehicles, vessels or aircraft, and life and health insurance. Credit may be available where the inward supply is used to make an outward taxable supply of the same category or as an element of a taxable composite or mixed supply. The proviso also allows credit where provision to employees is obligatory under a law in force. CBIC Circular 172/04/2022-GST clarifies that the employer-obligation proviso applies to the entire clause (b), not only vacation travel benefits.

The employer should identify the exact legal provision, affected employee population and minimum required benefit. A policy choice, market practice or employment contract is not automatically an obligation under law. The file may include the statute or rule, headcount or threshold test, establishment coverage, contract with the provider, employee eligibility register and payment evidence. If a cafeteria, insurance or clinic arrangement contains optional enhancements beyond the legal minimum, the incremental portion needs separate analysis.

Construction Credit Turns on Property, Capitalisation and Plant and Machinery

Works contract received from another supplier

Works-contract services for construction of immovable property are blocked unless the recipient uses them as input services for further supply of works-contract service. A main contractor can therefore be differently placed from an owner building its own office. The exception should be supported by the downstream works-contract agreement and invoice trail, not merely a construction-related business description.

Own-account construction and the 2025 amendment

Goods or services received for construction of immovable property on the taxpayer’s own account are blocked even when used in business, except for plant and machinery. Construction includes reconstruction, renovation, additions, alterations or repairs to the extent capitalised. Finance Act 2025 replaced “plant or machinery” with “plant and machinery” retrospectively from 1 July 2017 and inserted a clarification, effective 1 October 2025, directing that the earlier wording is always construed as “plant and machinery” despite contrary judgments. The statutory definition includes qualifying apparatus, equipment and machinery fixed to earth with foundations or supports, but excludes land, buildings, other civil structures, telecommunication towers and pipelines outside factory premises.

Accounting treatment is therefore legally relevant but not conclusive. A repair charged to revenue is outside the extended construction meaning in these clauses only if it is genuinely not capitalised; misclassification cannot create credit. Project invoices should be mapped to the asset register and broken between machinery, foundations integral to qualifying machinery, buildings, civil works and excluded structures. Mixed invoices need a supportable allocation.

CSR, Gifts, Losses and Personal Consumption Require Disposal Evidence

Clause (fa), effective from 1 October 2023, blocks goods or services used or intended for activities relating to the taxpayer’s corporate social responsibility obligations under section 135 of the Companies Act, 2013. The block is tied to CSR obligations, so voluntary community spending should not be coded automatically without fact review; other eligibility provisions still apply. The CSR committee papers, approved plan, section 135 classification and vendor invoices should be cross-referenced.

Credit is also blocked for personal consumption and for goods lost, stolen, destroyed, written off or disposed of as gifts or free samples. Inventory adjustments should identify the event and tax treatment instead of posting one annual net write-off. Damage reports, insurance claims, police records, management approvals, sample policies and recipient records support the distinction. A taxable promotional supply or bundled commercial arrangement is not resolved merely by calling an item a gift.

GSTR-3B Reporting Must Preserve Permanent and Temporary Differences

CBIC Circular 170/02/2022-GST states that ineligible credit under section 17(5), or other provisions of the Act and Rules, is reported in Table 4(B) of GSTR-3B and no further section 17(5) detail is required in Table 4(D)(1). Table 4(D)(2) is used for specified non-reclaimable credit such as section 16(4) time-barred amounts or certain place-of-supply cases. The return working should mirror the official table design for the relevant period and distinguish permanent blocked credit from amounts reversed temporarily and potentially reclaimable.

A monthly bridge should start with eligible amounts reflected in GSTR-2B, add legitimate credits outside that statement where the law permits, and separately identify Rules 38, 42, 43 and section 17(5) reversals. The general ledger, expense coding and return should agree. If credit was wrongly availed earlier, interest and correction consequences depend on whether and when it was utilised and on the applicable provisions; the correction should be reviewed rather than netted anonymously in a later month.

Evidence Pack Before Claiming an Exception

• Quote the exact section 17(5) clause and the exception relied upon for each material invoice.
• Connect vehicles and equipment to approved capacity, registration details and outward taxable use.
• For employee benefits, retain the law creating the obligation and proof of coverage.
• For construction, reconcile vendor lines, capitalisation and the statutory plant-and-machinery definition.
• Separate CSR-obligation spending from other community or promotional expenditure.
• Reconcile blocked credit to Table 4(B) and retain a period-wise bridge to the general ledger.

Frequently Asked Questions

Does appearance in GSTR-2B make blocked ITC eligible?

No. GSTR-2B supports matching, but section 17(5) can still block credit even when the invoice and tax are genuine.

Is ITC on every company car blocked?

The specific motor-vehicle block applies to vehicles for transporting persons with approved seating capacity up to 13, subject to listed exceptions. Other eligibility conditions still apply to vehicles outside that description.

Can employer-provided health insurance qualify for ITC?

It may qualify where the inward supply supports an allowed same-category outward supply or where provision to employees is obligatory under a law in force, with evidence of the obligation and coverage.

Is every repair to a building treated as construction?

For clauses (c) and (d), repair is included in construction to the extent it is capitalised. The actual accounting and asset facts must be examined.

What changed for “plant or machinery”?

Finance Act 2025 substituted “plant and machinery” in section 17(5)(d) retrospectively from 1 July 2017 and added a clarification governing the earlier wording.

Is GST on mandatory CSR spending eligible?

Clause (fa) blocks goods and services used or intended for activities relating to CSR obligations under section 135 of the Companies Act.

Where is section 17(5) ineligible credit reported in GSTR-3B?

CBIC Circular 170/02/2022-GST directs such ineligible credit to Table 4(B), not Table 4(D).

Key Takeaways

• Screen section 17(5) before putting an invoice into Rules 42 or 43 common credit.
• Each exception needs transaction-level evidence; business use and GSTR-2B presence are not enough.
• Current construction analysis uses “plant and machinery” and the 2025 retrospective clarification.
• Employer-obligation relief requires an actual legal obligation and proof of affected employees.
• Reconcile permanent blocked credit to Table 4(B) of GSTR-3B and the books.

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Disclaimer: This article is a general educational guide to section 17(5) of the Central Goods and Services Tax Act, 2017, related amendments and CBIC circulars checked on 13 November 2026. It does not decide input-tax-credit eligibility for any motor vehicle, vessel, aircraft, insurance policy, employee benefit, works contract, building project, plant, machinery, repair, CSR programme, gift, sample, inventory loss or tax payment. Eligibility depends on the exact supplier document, recipient, approved vehicle capacity, outward supply, legal obligation, asset design, fixation, capitalisation, contractual scope, accounting treatment, use and tax period. The statutory exceptions are narrow and must be read with sections 16 and 17, the CGST Rules, notifications, State or Union territory provisions and current return instructions. The retrospective 2025 change from “plant or machinery” to “plant and machinery” and the accompanying clarification may affect positions based on earlier judicial reasoning; historical periods and pending disputes require specific legal advice. GSTR-2B appearance is not approval of credit, and Table 4 reporting does not cure substantive ineligibility. Interest and penalty consequences of an incorrect claim depend on availment, utilisation, correction timing and the law in force. Businesses should verify the current consolidated Act, commencement notifications, circulars and portal tables before claiming, reversing or reclaiming credit and should obtain advice from qualified GST, legal and accounting professionals. TaxGuru accepts no responsibility or liability for denied credit, interest, penalty, litigation, accounting adjustment, return mismatch, asset-classification error, documentation failure or any commercial loss arising from reliance on this article, incomplete facts, incorrect coding or subsequent legal, judicial, administrative or portal changes.