GST Blocked Credits under Section 17(5) — The Negative List for FY 2025-26

Why Section 17(5) matters

The GST framework permits broad ITC under Section 16 — any inward supply used in the course or furtherance of business is, by default, eligible. Section 17(5) operates as the explicit “negative list” — a closed enumeration of expense categories where ITC is blocked regardless of business purpose, vendor compliance, or invoice validity.

For SMEs, accidental ITC claims on blocked categories are one of the most frequent triggers for Section 73 / 74 demand notices. The blocked-credit categories cover several routine operational expenses — office cars, employee meals, construction of facilities, festival gifts — where business intuition suggests “this is for business, so ITC should be claimable” but the statute says otherwise.

GST 2.0 (effective 22 September 2025) did not amend Section 17(5) structurally — the list remains as before. For ITC eligibility mechanics generally, see the ITC Rules guide. For where reversal flows into the return, see the GSTR-3B summary return spoke.

What 17(5) blocks — full enumeration

Section 17(5) covers clauses (a) through (i):

• (a) Motor vehicles for transportation of persons with seating capacity ≤ 13 (including driver). Exceptions: further supply of vehicles, transportation of passengers, driving school.
• (aa) Vessels + aircraft. Similar narrow exceptions for further supply / transportation of passengers / training.
• (ab) Insurance, servicing, repair, maintenance of motor vehicles, vessels, aircraft blocked under (a) / (aa). Same blocked basis.
• (b) Food + beverages, outdoor catering, beauty treatment, health services, cosmetic + plastic surgery, leasing / renting of motor vehicles blocked under (a). Two narrow exceptions: same-category outward supply OR statutory obligation under a labour law in force.
• (c) Works contract services for construction of immovable property — except where it is an input service for further works contract OR for plant and machinery.
• (d) Goods + services received for construction of immovable property on own account (capitalised) — except for plant and machinery.
• (e) Goods + services where tax has been paid under Section 10 (composition scheme).
• (f) Goods + services received by a non-resident taxable person — except imports by the NRTP.
• (g) Goods + services used for personal consumption.
• (h) Goods lost, stolen, destroyed, written off, or disposed by way of gift or free sample.
• (i) Tax paid under Section 74 (fraud), Section 129 (detention / seizure), Section 130 (confiscation).

Categories (a), (b), (c), (d) together account for the majority of SME 17(5) exposure.

The “plant and machinery” carve-out

Clauses (c) and (d) block ITC on construction of immovable property — with an explicit exception for plant and machinery, defined in the Explanation to Chapter V of the CGST Act:

“Plant and machinery means apparatus, equipment, and machinery fixed to earth by foundation or structural support that are used for making outward supplies of goods or services or both.”

Explicitly excluded from “plant and machinery”:

• Land, buildings, or other civil structures
• Telecommunication towers
• Pipelines laid outside factory premises

Practical line-drawing: the concrete foundation that anchors a CNC machine inside a factory is plant and machinery — ITC on the cement, steel, and labour for the foundation is eligible. The factory shed that encloses the same machine is a civil structure — ITC is blocked.

Safari Retreats — the Supreme Court ruling + the legislative response

In Safari Retreats Pvt Ltd vs CCT (Supreme Court, October 2024), the Court applied a “functionality test”: where a building is constructed for the specific purpose of leasing it out (i.e., the building itself enables the supply of leasing services), ITC may be available on construction costs because the building functions as plant in the commercial sense.

The government’s response: the Finance Act 2025 (Section 119) retrospectively amended Section 17(5)(d) — substituting the phrase “plant or machinery” with “plant and machinery” with effect from 1 July 2017 — explicitly to nullify the Supreme Court’s Safari Retreats functionality test. (The 55th GST Council Meeting in December 2024 recommended this; the Finance Bill 2025 implemented it; the May 2025 SC review-petition dismissal preserved the statutory amendment as the operative position.) Entities planning to claim ITC on built-to-let commercial structures (malls, leased offices) should evaluate their position against the post-amendment text + the latest CBIC advisory before claiming — the SC’s broader interpretation does not survive cleanly into the post-amendment framework.

Motor vehicles — the 5/7-seater confusion

A common SME misconception: “the car is registered in the company’s name + used for business → ITC is claimable.” Section 17(5)(a) says otherwise.

The rule: if the motor vehicle is designed for transportation of persons and has seating capacity ≤ 13 (including driver), ITC is blocked. This covers:

• 5-seater hatchbacks and sedans
• 7-seater SUVs used by executives
• 8-seater MPVs for staff pick-up

Exceptions (where ITC is allowed):

• Further supply of vehicles (dealer / trader of vehicles)
• Transportation of passengers (taxi operator, ride-share fleet)
• Driving school operation

The 13-seat threshold inversion: for vehicles with seating > 13 (e.g., a 45-seater bus for staff transport), Section 17(5)(a) does NOT apply, and ITC on the bus + its insurance / repair / maintenance is fully claimable.

The ancillary expense trap — Section 17(5)(ab)

Section 17(5)(ab) extends the block to general insurance, servicing, repair, and maintenance of vehicles blocked under (a). For a 5-seater company car:

• ITC on vehicle purchase → blocked under (a)
• ITC on monthly insurance premium → blocked under (ab)
• ITC on annual servicing / body-shop repair → blocked under (ab)
• ITC on fuel — separate consideration; petroleum products are outside GST scope so no ITC anyway

Food, beverages, and employee benefits

Section 17(5)(b) blocks the broad category of inward supplies of food / beverages / outdoor catering / beauty treatment / health services / leasing of blocked motor vehicles. Common SME exposures:

• Office coffee + tea + snacks vendor — blocked
• Catered office lunches — blocked
• Corporate events catering — blocked
• Employee gym / health club membership — blocked
• Employee health insurance premium — blocked
• Employee birthday cakes — blocked

The two narrow exceptions

1. Same-category outward supply — the inward supply is used to make an identical outward supply. A catering company buying ingredients for a catered event qualifies; its catering input ITC is claimable because the output is also catering. A software company buying employee lunches does not qualify; lunches are not the company’s output.
2. Statutory obligation — the supply is mandated by a labour law currently in force. Example: the Factories Act 1948 Section 46 mandates a canteen where the worker count exceeds 250. ITC on canteen service for such a facility is claimable under this exception. The mandate must be specific + applicable + in force; voluntary employee-benefit policies do not qualify.

The two exceptions are narrow + heavily scrutinised. Default position: most employee-benefit ITC is blocked under (b).

Construction services — the works-contract distinction

Section 17(5)(c) blocks works contract services for construction of immovable property. Section 17(5)(d) blocks goods + services received for construction on own account where the cost is capitalised. Together they cover most SME construction-side ITC:

Capitalised vs revenue expense:

• New warehouse construction → capitalised as a fixed asset → ITC blocked
• New office partitioning → capitalised as fixed asset → ITC blocked
• Annual painting + minor repair → revenue expense debited to P&L → typically OUTSIDE Section 17(5)(d) block → ITC claimable

The “capitalised vs revenue” treatment in the books is itself a documented accounting judgment — assurance providers commonly review the capitalisation policy against actual entries during a GST audit.

Plant + machinery installations inside an immovable property: as discussed above, foundations + structural support for plant + machinery qualify under the exception. The split between “civil structure” + “plant + machinery foundation” within a single project requires a documented allocation.

How to handle accidentally claimed blocked ITC

If a blocked credit was inadvertently claimed in a prior return, the correction flows through GSTR-3B Table 4(B)(1):

1. Identify the blocked-credit amount + its origin invoice + return period
2. Report the amount in Table 4(B)(1) of the current GSTR-3B (“As per Section 17(5)”)
3. Pay interest under Section 50 depending on whether the credit was utilised

Interest treatment under Section 50

• Claimed but not utilised (credit ledger balance never dropped below the wrongly-claimed amount between claim and reversal) → reverse via Table 4(B)(1) with no Section 50 interest
• Claimed AND utilised (credit ledger balance fell below the wrongly-claimed amount, meaning the wrong credit was used to offset output tax) → reverse + pay 18% per annum interest under Section 50(3) from the date of utilisation to the date of reversal

For reconciliation between claimed ITC and what actually qualifies, see the GST Reconciliation service.

Common Section 17(5) errors

1. Diwali / festival gifts to clients or employees — clause (h) blocks ITC on goods disposed by way of gift or free sample. Bulk gift vouchers, dry-fruit boxes, electronics for festival distribution all require ITC reversal.
2. Free samples + promotional giveaways — same (h) block. Marketing-led free-sample distribution is a frequent SME oversight.
3. Stolen / written-off assets — laptop theft, equipment write-off, defective inventory destruction. Original ITC claimed must be reversed under (h) + 18% interest if the credit had been utilised. Documentation of the loss (FIR, insurance claim, write-off authorisation) supports the reversal in the books.
4. RCM tax on a blocked-category service — paying RCM in cash on a service category whose ITC would be blocked (e.g., paying RCM on legal services that fall within (b) personal-use scope). The RCM tax is paid + the corresponding ITC is blocked → no offset. For RCM mechanics, see the Reverse Charge Mechanism (RCM) spoke.
5. Structural steel claimed as plant + machinery — civil-structure steel (factory shed columns + roof beams) blocked under (c) / (d). Only steel used as foundation / structural support for the actual machinery qualifies under the exception.
6. Composite-supply construction invoices — vendor’s invoice mixes plant-and-machinery components (eligible) with civil-structure components (blocked) under a single line. Documented allocation required to defend the eligible portion.
7. Rules 42 / 43 proportional-reversal miscalculation — for taxpayers with both taxable + exempt outward supplies, the common-credit reversal under Rules 42 + 43 is a separate mechanism from Section 17(5) blocked credits. Conflating the two leads to either over-reversal or under-reversal.
8. Failing to reverse on capitalisation — claiming ITC on building-material inputs during construction-in-progress, then forgetting to reverse when the WIP is capitalised as a fixed asset.

For end-to-end ITC tracking + reconciliation, see the GST Return Filing service. For the broader GST framework, see the GST overview pillar.