Recipients often find upward price adjustments or supplementary tax charges reported by suppliers as debit notes under Section 34 of the CGST Act. In the Invoice Management System (IMS), every inward supply document requires your review to ensure that only valid tax additions flow into your monthly credit register.
How IMS handles supplier debit notes
A supplier reports a debit note under Table 9B of Form GSTR-1, Form GSTR-1A, or the Invoice Furnishing Facility (IFF). Once filed, that document appears on the recipient dashboard in IMS under inward supplies as per the GSTN Revised Advisory on IMS.
Under Rule 36(1) and Rule 36(2) of the CGST Rules, a debit note issued under Section 34 is a valid document for availing input tax credit. The recipient has three operational choices in IMS:
- Accept: The debit note is approved. The incremental tax amount is included in your GSTR-2B generated on the 14th of the month, flowing into Table 4A(5) of Form GSTR-3B as eligible ITC.
- Reject: The recipient disowns the document because the underlying price hike or tax calculation is disputed. The debit note will not form part of GSTR-2B, and no ITC is populated. The supplier is alerted through portal records to rectify the mismatch.
- Pending: If goods or services are still in transit, or documentation is under verification, you can mark the debit note as pending. As confirmed in the GSTN Additional FAQs on IMS dated 17 October 2024, pending records do not flow into GSTR-2B for that period and roll over to subsequent tax periods until an action is selected. For more details on deferred entries, see our guide on handling pending invoices in IMS.
Deemed acceptance alert: Where no action is taken by the recipient on an inward supply record filed by the supplier, the record is treated as deemed accepted at the time of GSTR-2B generation. If a supplier raises an incorrect debit note and you leave it untouched, the additional tax is accepted by default.
Effect of supplier amendments in GSTR-1A or subsequent GSTR-1
Suppliers may correct an erroneously uploaded debit note before or after filing. According to the GSTN FAQs on IMS, when a supplier files an amendment via Form GSTR-1A or a subsequent Form GSTR-1/IFF, the amended record flows into the recipient IMS dashboard as a fresh document, resetting any prior action taken by the recipient.
If you previously rejected an erroneous debit note, but the supplier amends the taxable value or tax rate in Form GSTR-1A, the revised entry requires a fresh review on your IMS dashboard.
Time limit for claiming ITC on debit notes
Taxpayers frequently confuse the ITC cut-off date for debit notes with the date of the original invoice. Under Section 16(4) of the CGST Act, as amended by the Finance Act 2020 and explained in CBIC Circular No. 160/16/2021-GST, the time limit for claiming input tax credit on a debit note is delinked from the date of the underlying invoice.
The statutory deadline is 30 November following the end of the financial year in which the debit note was issued, or the date of furnishing the annual return under Section 44, whichever is earlier. For instance, if an invoice was dated 15 February 2025 (FY 2024-25), but a supplementary debit note is issued on 10 May 2025 (FY 2025-26), the ITC time limit for the debit note ends on 30 November 2026, not 30 November 2025.
Worked example: action on supplier debit notes
Consider an engineering firm, Precision Spares Private Limited, which receives three supplier debit notes in October 2026. The accountant reviews the documents against purchase contracts and delivery notes:
| Document | Supplier GSTIN | Taxable value | IGST (18%) | Action in IMS | GSTR-2B impact |
|---|---|---|---|---|---|
| DN-2026-081 | 27AAACP1234A1Z1 | ₹1,00,000 | ₹18,000 | Accept | Eligible ITC of ₹18,000 added to GSTR-2B |
| DN-2026-082 | 29BBBCK5678B1Z2 | ₹50,000 | ₹9,000 | Pending | Held back; ₹0 in October 2B, rolls over to November |
| DN-2026-083 | 24CCCCL9012C1Z3 | ₹25,000 | ₹4,500 | Reject | Excluded; ₹0 in GSTR-2B |
Total additional ITC claimed in Form GSTR-3B for October 2026 is ₹18,000. The pending amount of ₹9,000 awaits delivery confirmation and will appear on the IMS dashboard for November 2026. The rejected note of ₹4,500 was issued without contractual agreement and is removed from credit calculations.
The mathematical check is straightforward: Formula: Net additions to GSTR-2B = Accepted notes (₹18,000) + Deemed accepted notes (₹0) = ₹18,000 total eligible ITC.
Frequently asked questions
What happens if you do not take any action on a debit note in IMS?
If no action is taken by the recipient, the debit note is treated as deemed accepted when GSTR-2B is generated on the 14th of the month. The additional tax credit flows directly into your eligible ITC in Form GSTR-2B.
Can you mark a supplier debit note as pending in IMS?
Yes. Marking a debit note as pending keeps it on your IMS dashboard without including it in GSTR-2B for that month. It rolls over to subsequent periods until you accept or reject it.
How is the Section 16(4) time limit calculated for a debit note?
The time limit under Section 16(4) is delinked from the date of the original invoice. It depends solely on the financial year in which the debit note itself was issued, ending on 30 November following that financial year or the annual return filing date.
Check your supplier debit notes automatically
Compare inward debit notes in your purchase register against Form GSTR-2B with instant field-level verification. Your GSTR-2B and purchase register files are read in your browser and never uploaded to any server.
Last checked: 27 October 2026. Sources: GSTN Revised Advisory on IMS, Section 16, CGST Act.