Section 16 tells you when credit is available. Section 17(5) then removes some of it anyway, and it does so in the strongest terms the Act uses: notwithstanding anything in Section 16(1) or 18(1).
That opening phrase is the whole point. It means that satisfying every condition in Section 16 gains you nothing if the item is on this list. The invoice can be immaculate, the goods received, the supplier fully compliant, and the credit is still blocked.
The list, and what actually catches people
Motor vehicles
Credit is blocked on motor vehicles for the transport of passengers with an approved seating capacity of not more than thirteen persons, including the driver, and on the vessels and aircraft equivalents. It extends to insurance, servicing, repairs and maintenance on those vehicles.
The seat count is the operative test, not the price and not who uses it. A thirteen-seater is blocked. A fifteen-seater is not.
The exceptions matter and are frequently missed. Credit is available where the vehicle is used for making a further supply of such vehicles, for transportation of passengers, or for imparting training on driving. So a car dealer takes credit on his stock, a taxi operator on his fleet, and a driving school on its training cars.
And credit on goods transport vehicles is not blocked at all. This clause is about passenger transport. A commercial goods vehicle, of any size, is outside it entirely.
Food, beverages and the rest of clause (b)
Food and beverages, outdoor catering, beauty treatment, health services, cosmetic and plastic surgery, and separately membership of a club, health and fitness centre, and rent-a-cab, life insurance and health insurance.
Two exceptions carry most of the value.
First, where the inward supply is used for making an outward taxable supply of the same category, or as an element of a composite or mixed supply. A restaurant takes credit on catering inputs. A hotel takes credit on food it sells.
Second, and this is the one worth checking, where the employer is obliged to provide it to employees under any law for the time being in force. Where a statute requires a canteen, transport or insurance, the block lifts. Whether a given obligation qualifies turns on the specific statute and headcount, so it is worth confirming rather than assuming in either direction, but the number of employers paying tax on canteen services they are legally obliged to run is not small.
Employee expenses generally are worth a careful look. Staff welfare, gifts and hospitality tend to be booked with credit taken by default, and a good part of that is blocked.
Construction, which is where the real money is
Clauses (c) and (d) block credit on works contract services for construction of immovable property, and on goods or services received for construction of immovable property on one’s own account, in each case other than plant and machinery. Construction here includes reconstruction, renovation, addition, alteration or repair, to the extent capitalised.
For any business that builds anything, this is the single most expensive provision in GST, and it needs to be in the project budget from the start rather than discovered when the credit is disallowed. On a factory expansion the blocked credit reaches numbers that change the economics of the project.
The whole question then becomes what counts as plant and machinery, because that is the carve-out. The Explanation to Section 17 defines it as apparatus, equipment and machinery fixed to earth by foundation or structural support, used for making an outward supply, and it excludes land, building or any other civil structure, telecommunication towers, and pipelines laid outside factory premises.
So on a new production line, the machines and their foundations and structural supports are plant and machinery and the credit is available. The building they sit inside is a civil structure and the credit is not. On a mixed contract the split is a matter of evidence.
This is why the practical control is at the contracting stage. A single lump sum works contract for a building including its machinery installation gives you one invoice and a very difficult apportionment argument. Separate contracts, or at minimum a contract with a clear value split between civil work and plant, gives you a defensible position on the plant portion. That decision costs nothing at the time and is close to unfixable afterwards.
The word capitalised also does work. Repairs charged to revenue are outside clauses (c) and (d). Repairs capitalised are inside. The accounting treatment drives the tax outcome, which is worth knowing before the treatment is chosen.
Clause (h): losses, write-offs and free supplies
Credit is not available on goods lost, stolen, destroyed, written off, or disposed of by way of gift or free samples.
The write-off part catches manufacturers and distributors continuously. Every time obsolete stock, expired inventory or damaged goods are written off, the credit taken on those goods has to be reversed. It is a routine adjustment and it is routinely missed, because the write-off is an accounting decision taken in a different system by different people.
The gift and free sample limb reaches further than expected. Promotional distributions, samples to doctors or dealers, buy-one-get-one arrangements, and gifts to customers or employees all fall in it. There is a genuine distinction between a free supply and a discount properly recorded, and where a scheme can be structured as a discount reflected on the invoice, the credit position is materially better. That is a design decision taken before the scheme launches.
The remainder
Credit is also blocked on membership fees already mentioned, on travel benefits extended to employees on vacation such as leave or home travel concession, on goods or services used for personal consumption, and on tax paid under Sections 74, 129 and 130, that is, tax paid pursuant to fraud proceedings, detention and confiscation.
The order in which to think about it
Section 17(5) is the last gate, not the first, and running the tests in the wrong order wastes time.
- Is it used in the course or furtherance of business at all, under Section 16(1)?
- Do all four conditions in Section 16(2) hold?
- Is it blocked by Section 17(5)?
- Is it partly attributable to exempt supplies or non-business use, requiring apportionment under Rules 42 and 43?
- Is it within the Section 16(4) time limit?
An item can fail at any stage. There is no point apportioning a credit that is blocked outright.
Controls that actually catch it
The failures are almost never failures of knowledge. They are failures of routing. The people who create the transactions are not the people who know Section 17(5).
Flag it in the chart of accounts. Ledgers where blocked credit predictably arises, staff welfare, motor car expenses, canteen, club subscriptions, building repairs, gifts and samples, should be marked so that credit is not taken by default and has to be justified instead.
Put the construction question at contract stage. Once a lump sum works contract is signed, the apportionment argument is as good as it will ever be. Ask for the split before signing.
Connect the write-off process to GST. Any stock write-off or scrappage should generate a reversal entry automatically. Relying on someone remembering at year end does not work.
Review promotional schemes before launch, not after. Free supply versus discount is a design choice with a direct credit consequence.
Reconcile clause (h) annually. Compare total write-offs and free issues for the year against total reversals under clause (h). If the second number is much smaller than the first, you have found an exposure.
The summary
Section 17(5) overrides Section 16 entirely. The seat count is what matters for motor vehicles, and goods vehicles are not covered. Employee benefits provided under a statutory obligation escape the block. Construction is the expensive one, the plant and machinery carve-out is the whole argument, and the argument is won or lost in the contract rather than in the return. And clause (h) reversals on write-offs and free samples are the quiet recurring exposure in almost every manufacturing business.
