The apparent tension between Section 16(1) and Section 17(5) of the CGST Act arises from GST’s promise of seamless input tax credit (ITC) versus the statute’s explicit exclusions. A correct reading shows a two-step scheme: Section 16(1) grants a general entitlement to ITC for business use, subject to conditions, while Section 17 qualifies that entitlement through apportionment and an overriding list of blocked credits beginning with a non-obstante clause. Courts have clarified that Section 17(5) is not unconstitutional or contrary to Section 16(1) per se; it is a legislatively sanctioned restriction. The Supreme Court has upheld the validity of key blocking provisions, while insisting on strict, purposive application—especially for construction-related credits—using a functionality test to distinguish “plant” from immovable property and to avoid outcomes that defeat GST’s value-added design. High Courts have similarly narrowed the reach of blocked credits, protecting bona fide claims unless facts squarely fit a blocking clause.
1. Why the question arises
GST was sold to taxpayers as a destination‑based tax on value addition with a seamless flow of input tax credit at every stage of the supply chain. Section 16(1) of the CGST Act appears to echo this promise by entitling every registered person to take ITC on any inward supply used or intended to be used in the course or furtherance of business, subject to conditions and restrictions and crediting it to the electronic credit ledger. Yet, when taxpayers face disallowance under section 17(5) for motor vehicles, construction of immovable property, employee‑related expenses, losses or confiscation, they naturally ask: is this not contrary to section 16(1) and the core GST philosophy?
2. How the Act actually works: entitlement first, then exceptions
A correct reading of Chapter V of the CGST Act shows a two‑step structure. First, section 16(1) lays down a general entitlement to ITC on business supplies, subject to the conditions in section 16(2)– (4) like possession of a tax invoice, receipt of goods/services, tax paid to Government, filing of returns and time‑limit for availment. Second, section 17 then qualifies this entitlement by apportionment (mixed and exempt supplies) and by an overriding list of blocked credits under sub‑section (5), which begin with the words “Notwithstanding anything contained in sub‑section (1) of section 16…”.
In other words, the statute itself says: even if a particular inward supply is for business and otherwise eligible under section 16(1), ITC will still be barred if it falls within one of the specific blocked categories in section 17(5). The question therefore is not whether 17(5) contradicts 16(1), but whether the particular disallowance squarely fits a blocked category and whether such blocking is constitutionally permissible.
3. Supreme Court on the validity of blocked credits
The most important development on this issue is the Supreme Court’s recent judgment in Chief Commissioner of CGST & Ors. v. Safari Retreats Pvt. Ltd. & Ors., in which a batch of matters challenging section 17(5)(c) and (d) was decided. The Orissa High Court in Safari Retreats had earlier read down section 17(5)(d) to allow ITC on construction of a commercial building intended for renting, holding that denial would result in double taxation and defeat the GST objective of seamless credit, but the Revenue carried the matter in appeal.
The Supreme Court has now:
Upheld the constitutional validity of sections 17(5)(c) and (d) and of time‑limit provision section 16(4), holding that the legislature is competent to impose such restrictions on ITC as part of its fiscal policy, and that the usual equal‑protection tests are applied less stringently in tax matters.
Clarified that clauses (c) and (d) apply specifically to construction of immovable property, and that whether a structure is “plant” or an immovable property attracting the block must be decided on a functionality test in each case.
Indicated that section 17(5)(d) should not be so broadly interpreted as to create obvious double taxation where an assessee constructs a commercial property for the very purpose of letting it out as a taxable renting service, signalling that the provision must be read in a manner which aligns with the value‑added character of GST.
This judgment is crucial for taxpayers because it settles that: (i) section 17(5) is not unconstitutional per se or contrary to section 16(1); but (ii) its clauses must be strictly and purposively applied and cannot be stretched in a way that undermines the core GST design.
4. High Courts: strict construction and protection of bona fide credits
Even before Safari Retreats reached finality in the Supreme Court, High Courts across India were consistently emphasising that blocked‑credit provisions must be narrowly construed. In disputes about construction, interior fit‑outs and works contracts, courts have tended to favour an interpretation which avoids complete denial of ITC where the output supply itself is taxable and where the language of section 17(5) admits of more than one view. Taxpayers can now combine such reasoning with the Supreme Court’s functionality test to argue that many commercial installations form part of “plant” and are outside the blocked zone.
Similarly, in cases involving fraud, bogus passing of credits, confiscation and penalties, High Courts have accepted the validity of section 17(5)(i) but have cautioned that genuine purchasers cannot be denied ITC unless there is clear evidence of collusion or participation in the fraud. The departmental burden is to show that the credit claimed is directly linked to goods or services seized/confiscated for violation of GST law or to tax demands representing penal or fraudulent liabilities; mere suspicion, mismatch or supplier default is not sufficient ground to invoke section 17(5)(i).
5. Practical takeaways for taxpayers and advisors
For day‑to‑day practice, the following propositions can be safely articulated after the Supreme Court’s ruling and the High Court trend:
Section 16(1) continues to be the foundation: every ITC dispute must first be tested against the basic conditions in section 16 for eligibility and then examined whether any portion is hit by section 17(5).
Section 17(5) is a narrow exception, not a general licence to deny ITC; each clause must be interpreted strictly and applied only when the facts clearly fit the description in that clause.
For construction and immovable property, the functionality test and the purpose of the structure (taxable renting or business operations) are critical; taxpayers should carefully document how such assets are used for output supplies to demonstrate that they fall outside the mischief of clauses (c)/(d) wherever arguable.
For clauses relating to losses, destruction and write‑off, businesses should maintain robust stock records, insurance documents and board approvals so that ITC reversal is confined only to those goods which are demonstrably lost, destroyed or written off, and not to goods actually used in business.
In fraud/confiscation scenarios, taxpayers must distinguish between penalties imposed on them versus action against third parties; ITC can be blocked under section 17(5)(i) only where the goods/services forming the subject of credit are themselves part of the confiscated or fraudulent activity.
From a constitutional standpoint, the present legal position is that section 17(5) is not contrary to section 16(1); it is a legislatively sanctioned restriction on an otherwise wide ITC right. However, courts are ensuring that these restrictions do not stray beyond their text or purpose and do not convert GST into a cascading tax by default. For practitioners and taxpayers, the strategy is therefore to treat section 16(1) as the rule, section 17(5) as a tightly confined exception, and to litigate on interpretation and factual fit rather than on facial invalidity.



Sir,
!)can you elaborate significance of “notwithstanding” cause in S.17(4).
2)Can you give citation of SC Judgment on S.16(4).
CA Om Prakash Jain
Tel 9414300730/0141-3584043