GST Notice Reply Guide

Why GST notices happen: the mismatch problem

Almost every GST notice traces back to a mismatch between the returns you filed. The GST system cross-checks three things automatically: your GSTR-1 (outward supplies you reported), your GSTR-3B (the summary and tax you paid), and your GSTR-2B (the input tax credit available from your suppliers' filings). When these do not reconcile, the system flags it.

Common triggers: tax declared in GSTR-1 but not paid in 3B; input tax credit claimed in 3B that does not appear in 2B; or a supplier who did not file, so your credit is unsupported. Each of these can start a notice on the GST portal. The best defence is monthly reconciliation, which our GST compliance service does as standard, but if a notice has arrived, here is how the escalation works.

ASMT-10: the scrutiny notice

Form ASMT-10 is a scrutiny notice: the officer has examined your returns and found discrepancies they want explained. It is not yet a demand, it is a question. You reply in Form ASMT-11, either explaining why there is no discrepancy (with reconciliations and documents) or accepting it and paying the shortfall via DRC-03.

Respond within the time stated (commonly 30 days). A well-supported ASMT-11 reply frequently closes the matter with no demand at all, which is why this stage is the cheapest place to resolve a GST issue. Ignore it, and the officer proceeds to a formal demand.

DRC-01: the show-cause demand

Form DRC-01 is more serious: it is a show-cause notice accompanying a demand for tax, interest and penalty, issued under Section 73 (non-fraud) or Section 74 (fraud/suppression). Section 73 carries lighter penalties; Section 74 is far harsher, so the section cited matters enormously.

You reply in Form DRC-06 within the period given, with your explanation and evidence. You can also pay before the notice to reduce penalty, under Section 73, paying tax plus interest before a DRC-01 can mean no penalty at all, and paying within 30 days of the notice keeps it minimal. If unresolved, the officer passes an order in DRC-07, which becomes a recoverable demand.

A worked example

A Mumbai trading firm received an ASMT-10 alleging ₹3.8 lakh of excess input tax credit, credit claimed in 3B that was missing from 2B. On reconciliation, their CA found the credit was genuine: two suppliers had filed late, so the invoices appeared in a later month's 2B. The ASMT-11 reply attached the supplier filings and the timing reconciliation, and the matter was dropped with no demand.

Had they ignored the ASMT-10, it would have become a DRC-01 demand for ₹3.8 lakh plus interest and penalty, a real liability created purely by silence. The case shows why replying properly at the scrutiny stage is worth far more than it costs.

How to reply and protect yourself

1. Log in to the GST portal and open the notice under Services → User Services → View Notices and Orders.
2. Identify the form (ASMT-10, DRC-01) and the exact discrepancy and amount alleged.
3. Reconcile GSTR-1, 3B and 2B for the period and gather supporting invoices, credit notes, and supplier filings.
4. File the correct reply (ASMT-11 or DRC-06) within the deadline, with a clear explanation and evidence.
5. Where a genuine shortfall exists, pay via DRC-03 promptly to minimise interest and penalty.

GST demands escalate fast and the forms are unforgiving. Businesses in Maharashtra should keep professional tax filings current alongside GST. If you have received an ASMT-10 or DRC-01, our GST compliance service handles the reconciliation and reply end to end. book a free consultation with the notice and a CA will review it, usually the same day.

A monthly routine that prevents GST notices

Most GST notices are preventable with disciplined monthly hygiene on the GST portal:

• Reconcile GSTR-1, 3B and 2B every month before filing, this catches the mismatches that later become notices.
• Chase non-filing suppliers, because their missed filings block your input tax credit in 2B.
• Match your books to the returns, not just the returns to each other.
• Keep an evidence file, invoices, credit notes, e-way bills, organised by month.
• Act on portal alerts promptly rather than at year-end.

If a notice does arrive, the same file that prevents mismatches becomes your reply evidence. The difference between a stressful GST demand and a routine clarification is almost always whether the monthly reconciliation was done, which is exactly the discipline a compliance partner brings.