GST Notices for MSMEs: First 7 Days Response Checklist

A GST notice on the portal dashboard rarely arrives at a convenient time. For a small manufacturer or trader with no in-house tax team, the first question is not whether the demand is correct but what must be done this week. The document may be a scrutiny intimation, a pre-show-cause message or a full show-cause notice, and each carries a different form, reply route and consequence for delay. This guide sets out how to respond to a GST notice through a seven-day internal plan that keeps a buffer before the officer's deadline. The seven days are a working discipline, not a statutory guarantee.

How to Respond to a GST Notice: Day 1

Start with the PDF, not the dashboard summary. Download the notice and open the notices section of the GST portal, including View Additional Notices and Orders under Services > User Services. Read the operative page twice and note the essentials: the form number, the section invoked, the tax period, the amount in dispute, and the date by which the reply is due. Add the issuing authority's name and whether a Document Identification Number (DIN) is printed.

The form tells you the route. ASMT-10 is a scrutiny notice under section 61; it is not an order, but an unsatisfactory reply can lead to a demand. Under rule 99(1) of the CGST Rules, your explanation is due within the period stated in the notice, which cannot exceed fifteen days from service. DRC-01A is a pre-notice intimation under rule 142(1A), not a demand. DRC-01 is the show-cause notice under section 73, for ordinary short payment, or section 74, where fraud or suppression is alleged. The reply is ordinarily filed in DRC-06.

Service through the portal is valid service, so an email that arrives later does not extend the date. CBIC Circular No. 249/2025-GST reiterates that communications are served when they are made available on the common portal. Note the date of service, not just the date printed on the notice, and put the deadline in a calendar shared by at least two people. If the notice gives you less than seven days, compress the plan; the date in the notice controls. You can ask the officer in writing for more time, but do not assume it will be granted.

Day 2-3: Match Every Allegation to Your GSTR Filings

Build one table before you open a single invoice. The columns should be: allegation number, allegation as stated, tax period, amount demanded, your figure, source document, difference, and explanation. This table becomes the skeleton of the reply and stops the officer from having to guess which paragraph answers which point.

Pull the returns for every month in the period: GSTR-1, GSTR-3B, GSTR-2B and the annual return. Add the electronic credit ledger, the input tax credit (ITC) register, the sales and purchase registers, e-invoices and e-way bills. If the allegation concerns ITC, compare GSTR-3B credit with GSTR-2B, the credit statement, invoice by invoice. If it concerns outward supply, compare GSTR-1 with GSTR-3B, then with e-invoices and e-way bills.

Expect timing differences. A supplier may report an invoice in the next month's GSTR-1, so it appears in a later GSTR-2B. Credit notes, amendments, cancelled invoices and sales returns can all create a gap that is not a tax liability. Job-work movements under delivery challans can explain goods that moved without a sale.

An e-way bill proves movement, not a taxable supply. A GSTR-2B mismatch does not by itself prove that credit is ineligible. Write down what your books show and identify the document that proves it; do not write that the portal is wrong.

Day 4-5: Build the Reconciliation and the Document Set

Convert the table into one annexure per allegation. For an ITC mismatch, an invoice-level annexure works best: supplier GSTIN, invoice number and date, taxable value, tax, the GSTR-2B period, the GSTR-3B period, and a remark such as "credit not availed" or "duplicate claim accepted". For an outward-supply mismatch, use a month-wise table that reconciles GSTR-1, GSTR-3B, e-invoices and e-way bills, with the reason for each difference.

Keep the evidence simple and indexed. A 200-page upload without page numbers invites a superficial reading. Give each annexure a cover page, number the pages, and refer to those numbers in the reply.

Documents to keep

• Signed tax invoices and the corresponding e-way bills or e-invoice IRNs.

• GSTR-1, GSTR-3B, GSTR-2B and GSTR-9 filings with acknowledgement numbers.

• Purchase and sales registers, stock records and job-work challans.

• Bank statements and payment proofs for the invoices in dispute.

• Electronic credit ledger and electronic cash ledger extracts.

• Credit notes, debit notes and delivery challans for returns or movements.

A chartered accountant's certificate can support the reconciliation, but it does not replace invoice-level evidence. The officer is entitled to see the transaction, not just a conclusion.

A worked scrutiny notice in Rajkot

Consider Shreeji Precision Works, a Rajkot manufacturer of pump components with turnover of ₹9.1 crore in FY 2023-24. On 15 September 2026, an ASMT-10 appears for that year. The officer alleges ITC of ₹1,33,000 claimed in GSTR-3B without matching GSTR-2B credit, and e-way bills for ₹2,86,000 with no corresponding outward supply in GSTR-1 or GSTR-3B, involving tax of ₹51,480.

Over days two to five, the accountant reconciles invoice by invoice. Of the ITC gap, ₹95,000 is reverse-charge credit on goods transport, where the tax was paid through the cash ledger and the credit does not appear in GSTR-2B; self-invoices and payment challans support it. The remaining ₹38,000 is a duplicate claim against invoice SP/1187, which the firm accepts. The four e-way bills are for job-work movement under delivery challans, not sales.

The firm pays ₹38,000 with interest of ₹17,100 through DRC-03, quotes the challan in ASMT-11, and attaches a month-wise reconciliation, the duplicate invoice, the job-work challans, the e-way bills and a ledger extract. The reply accepts only the duplicate claim. If the officer is satisfied, ASMT-12 follows; if not, section 61(3) allows a show-cause notice under section 73.

Day 6: Draft the Reply in the Correct Form

Use the form the notice demands. An ASMT-10 is answered in ASMT-11. A DRC-01 show-cause notice is answered in DRC-06. A DRC-01A is answered in Part B of the same form, although that reply is optional; the more important decision is whether to pay before the show-cause notice.

Follow the numbering in the notice. For each allegation, state the fact, then the reconciliation, then the legal position. Keep admissions precise: accept the ₹38,000 duplicate claim, not "the ITC discrepancy". Use phrases such as "without prejudice" and "subject to verification" where a figure is still being checked, but do not use them to avoid answering.

If the demand depends on disputed facts, ask for a personal hearing in writing. Section 75(4) requires an opportunity of hearing where a request is made in writing or an adverse decision is contemplated. Attach the request to the reply rather than sending it separately.

Sign with DSC or EVC as the authorised signatory. Check that the notice reference number, tax period and amount in the reply match the notice exactly.

• Every allegation in the notice has a numbered response.

• Every figure is traced to a return, invoice or ledger entry.

• The accepted portion is paid through DRC-03 with the challan attached.

• The reply uses the form the notice demands: ASMT-11, DRC-06 or DRC-01A Part B.

• Annexures are indexed and page-numbered.

• The authorised signatory and notice reference are correct.

Common mistakes

• Paying the entire demand to close the matter before checking the reconciliation.
• Filing a one-line reply that the notice is wrong, with no annexures.
• Attaching unrelated years or unrelated GSTINs, which widens the enquiry.
• Missing the reply date because the email arrived late.
• Treating a DRC-01A as a final order.

Day 7: File, Save the Acknowledgement and Diary the Next Step

Upload the reply and annexures, submit, and download the acknowledgement with the acknowledgement reference number (ARN). Save the submitted PDF, the acknowledgement and the annexures in one folder named with the notice reference and tax period. A portal acknowledgement is your proof of filing; a draft in your email is not.

Diary the next event. After an ASMT-11, watch for ASMT-12 or a show-cause notice. After a DRC-06, watch for the order, summarised in DRC-07. If an order is passed, an appeal lies in form APL-01 within three months of communication, with a possible one-month extension on sufficient cause, and a pre-deposit of 10% of the disputed tax, capped at ₹20 crore.

If the notice is a DRC-01A and the reconciliation shows a genuine short payment, paying before the show-cause notice can end the matter more cheaply. Under section 73(5), payment of tax with interest before the notice avoids penalty in ordinary cases; under section 74(5), the pre-notice settlement carries a 15% penalty. Take that decision on the reconciled figure, not on the officer's estimate.

The single next action is this: download the notice today, write the reply date and form at the top of a fresh file, and reconcile the first allegation before you draft a sentence. The rest of the week follows from that file.

This article is for general information only and is not legal advice. Consult a qualified professional for your specific facts.