Why can a GST invoice be valid but ITC still be denied?
A valid invoice is only one of several conditions for claiming ITC. Credit also depends on what your supplier reports and pays.
- Published
- Reading time
- 5 min
- Level
- Intermediate
01 The question
You hold a proper tax invoice, you paid the supplier in full, and the goods are in your warehouse. Why might your input tax credit still be challenged?
02 Short answer
Section 16 of the CGST Act sets out cumulative conditions for ITC. Possessing a valid invoice is just one. The invoice must also be reflected in your auto-generated statement (GSTR-2B), the supplier must have actually paid the tax, you must have received the supply and filed your own return — and the claim must be made within the time limit.
03 The rule
Section 16(2) of the CGST Act, 2017 lists the conditions a recipient must satisfy before claiming input tax credit. They include possession of a tax invoice or debit note, the details being furnished by the supplier and communicated to the recipient, receipt of the goods or services, payment of tax by the supplier to the government, and filing of the recipient’s return.
Separately, Section 16(4) imposes a time limit for availing credit, and Section 17 blocks credit on certain categories of expenditure altogether. Rule 36(4) of the CGST Rules ties credit to what appears in GSTR-2B.
04 Simple example
Scenario
Kaveri Components buys ₹10 lakh of raw material plus ₹1.8 lakh GST from a supplier in Pune. The invoice is correct in every respect and Kaveri pays the full amount. However, the supplier does not file GSTR-1 for that month.
Because the supplier has not reported the invoice, it does not appear in Kaveri’s GSTR-2B. Kaveri cannot claim the ₹1.8 lakh credit for that period, even though its own paperwork is in order.
If the supplier later reports the invoice, the credit generally becomes available in the period it appears — subject to the Section 16(4) time limit.
05 Why it matters
For businesses with thin margins, delayed or denied credit is a direct working-capital cost. It also creates reconciliation work for finance teams every month.
Supplier compliance has effectively become part of your own compliance. Vendor onboarding and payment terms increasingly reflect this.
06 Practical takeaway
- 01Reconcile purchase registers against GSTR-2B every month, not only at year-end.
- 02Track repeat non-filers and consider holding back the GST portion of payments until invoices reflect.
- 03Review Section 17(5) blocked credits before booking ITC on new categories of expense.
07 Source / reference
- CGST Act, 2017 — Section 16 — Eligibility and conditions for ITC
- CGST Act, 2017 — Section 17(5) — Blocked credits
- CGST Rules, 2017 — Rule 36(4)
References are to the provisions as generally understood at the time of writing. Provisions may since have been amended, renumbered (including under the Income-tax Act, 2025) or interpreted differently.
8. Educational disclaimer
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