Time Limit for Claiming Input Tax Credit Under GST
A lot of businesses lose genuine ITC not because they weren't entitled to it, but because they claimed it a few weeks too late. Section 16(4) of the CGST Act sets a hard cut-off, and once that date passes, the credit is gone. No revised return, no rectification, no appeal fixes it.
Here's exactly how the deadline works, and how to make sure you're not the one explaining a lapsed credit to your finance head in March.
The rule in plain terms
You can claim ITC on an invoice or debit note for a financial year up to whichever of these two dates comes first:
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30th November following the end of that financial year, or
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The date you actually file your annual return (GSTR-9) for that year
Whichever of the two arrives earlier wins. This is the only version of the rule currently in force — an earlier draft of the law tied the deadline to the September GSTR-3B due date, but the Finance Act, 2022 replaced that with the fixed 30 November date, giving businesses roughly six extra weeks.
Example: For FY 2025-26 (April 2025 to March 2026), you can claim any missed ITC in a GSTR-3B filed up to 30 November 2026. If your GSTR-9 for FY 2025-26 happens to be filed on 15 October 2026, your window closes on 15 October 2026 instead — filing the annual return early shuts the door early, even if the calendar date hasn't arrived yet.
This is the single biggest reason accountants recommend filing GSTR-9 last, only after every ITC reconciliation is complete.
Why this catches so many businesses off guard
Three situations account for most missed claims:
Invoices received late from the vendor. If a supplier issues an invoice in April 2026 for a February 2026 supply, that credit still belongs to FY 2025-26 for reversal purposes, but you may not spot it in GSTR-2B until closer to the deadline.
Debit notes with a different clock. Since the Finance Act, 2020 amendment, a debit note's time limit runs from the date of the debit note itself, not the date of the original invoice. A debit note dated April 2026 against a March 2025 invoice falls under FY 2026-27 for Section 16(4) purposes — this trips up a lot of reconciliation teams who assume it follows the original bill.
Credit sitting unclaimed in GSTR-2B. Reconciliation gaps between purchase registers and GSTR-2B are common, and unclaimed credit doesn't carry forward indefinitely. It has the same 30 November wall as everything else.
What happens if you miss the deadline
There's no cure once Section 16(4) has run out. Practically, this means:
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The credit is permanently forfeited — you cannot claim it in any later period
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You end up paying that portion of GST in cash instead, which hits working capital directly
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If it was already claimed and later found to be time-barred on scrutiny, expect a reversal demand along with interest under Rule 88B and possible penalty
There's no appeal route built for "we found it late." The only real protection is a monthly reconciliation habit, not an annual one.
Two exceptions worth knowing
Sections 16(5) and 16(6) carve out retrospective relief in specific situations:
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Section 16(5) extended the claim window for FY 2017-18 through FY 2020-21, allowing credit that had lapsed under the earlier rule to be claimed up to 30 November 2021, in recognition of the chaos of GST's early years.
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Section 16(6) applies where registration was cancelled and later revoked — it lets you claim ITC for the period the registration was suspended, subject to conditions and its own time frame.
Neither of these helps with a routine current-year miss; they're narrow, backward-looking fixes.
How to stay ahead of it
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Reconcile purchase register against GSTR-2B every month, not once a year — see our [GSTR-2B reconciliation guide] for the process
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Flag debit notes separately in your books so the correct financial year applies automatically
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Set an internal cut-off of mid-October, not 30 November, so there's buffer time to chase missing invoices from vendors
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Hold off filing GSTR-9 until reconciliation is fully closed — filing early with pending ITC is the most common self-inflicted version of this problem
FAQs
Is 30 November the due date of a return, or a fixed calendar date?
It's a fixed date — the 30th of November following the financial year — not tied to any return's due date.
Can I claim FY 2024-25 ITC in a GSTR-3B filed in December 2025?
No. The window for FY 2024-25 closed on 30 November 2025, or earlier if GSTR-9 for that year was filed before that date.
Does this deadline apply to ITC on capital goods too?
Yes. Section 16(4) applies to ITC on inputs, input services, and capital goods alike — there's no separate extended window for capital goods.
What if I discover missing ITC after filing GSTR-9?
Once GSTR-9 is filed, the credit for that year is closed even if 30 November hasn't arrived yet. This is exactly why reconciliation should happen before annual return filing, not after.