Got an ITC mismatch notice? How to respond to DRC-01C and ASMT-10
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Updated 03 Oct 2026
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AI summary
Why the portal flags ITC differences, how to find the real gap and how to reply before it turns into a demand.
6 sections 6 steps
Why you got it
- DRC-01C (Rule 88D): the ITC you claimed in GSTR-3B for a month is higher than the ITC in your GSTR-2B by more than the limit set on the portal.
- ASMT-10 or DRC-01A: during scrutiny of a whole year, the officer found that ITC in GSTR-3B (or GSTR-9) is higher than GSTR-2B.
- Other triggers: the supplier didn't file GSTR-3B, the supplier's registration was cancelled, or you didn't pay the supplier within 180 days.
Is it a real excess?
| Cause | Real excess? | What proves it |
|---|---|---|
| Supplier filed late, so the invoice appeared in a later month's GSTR-2B | No, timing only | GSTR-2B of the later month |
| ITC on reverse charge you paid in cash | No, RCM credit is not in GSTR-2B | RCM liability in GSTR-3B and cash ledger |
| Re-claim of ITC reversed earlier | No | Electronic Credit Reversal and Re-claimed Statement |
| IGST on imports where the bill of entry was late to reflect | Usually no | Bill of entry and ICEGATE data |
| Invoice never uploaded by the supplier | Yes | Reverse it |
| Same invoice claimed twice | Yes | Reverse it |
| Supplier used the wrong GSTIN for you | Yes, until the supplier amends | Ask the supplier to amend |
| Supplier's credit note not reduced from ITC | Yes | Reverse it |
Step-by-step response
- Reconcile. Download GSTR-2B for the month and the months around it. Match against your purchase register invoice by invoice.
- Split the difference into timing or explainable items and real excess.
- Real excess: pay or reverse it in DRC-03. If the wrong ITC was used to pay tax, interest at 18% applies.
- Explainable items: reply in Part B of DRC-01C (or ASMT-11 for ASMT-10) with a month-wise reconciliation and documents.
- Reply on time. DRC-01C needs a reply within 7 days. If you don't reply, the portal blocks your next GSTR-1 or IFF (Rule 59(6)).
- Keep your working papers. You will need them for GSTR-9, the audit and any later notice.
Don't lose genuine ITC
ITC for an invoice must be claimed by 30 November after the end of the financial year or the date you file the annual return, whichever is earlier. If the supplier uploads very late, follow up before this date.
Avoid it next month
- Accept, reject or keep pending each invoice in IMS before GSTR-2B is generated.
- Reconcile with GSTR-2B before you file GSTR-3B, not after.
- Claim ITC only for invoices that appear in GSTR-2B.
- Hold payment to suppliers until their invoice shows in your GSTR-2B.
Related
- GSTR-2B reconciliation and ITC mismatches
- Rules 37 and 37A
- ITC reversal: when and how
- Received a GST notice?
- Reconcile purchases with GSTR-2B in Hisab Central
Sources
PreviousGSTR-2B reconciliation and ITC mismatches Next in Input Tax Credit Case study: ₹40 lakh ITC mismatch and a DRC-01C intimation
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