GST Notice Deadline: How to Calculate Your Reply Date

A GST notice is sitting in your portal inbox, and the first question is not what it means but whether your reply is already late. If you are unsure how to fix the GST notice reply time limit from the date printed on the notice, the service date and the wording of the operative paragraph, you are not alone. The deadline is rarely the date at the top of the PDF. It is a calculation: notice type, statutory period, mode of service and the exact words used. Get that calculation right, and you buy yourself a clean, documented reply window.

Read the operative paragraph first

Download the notice from the GST portal and read the page that contains the direction, not just the summary table. Most GST notices follow a pattern. The first page identifies the form and the provision. The middle sets out the alleged discrepancy. The operative paragraph begins with words such as 'You are hereby directed' or 'You are requested to furnish'. That is where the officer fixes the reply period.

Find four things: the form number, the statutory provision printed on it, the exact reply period and the event from which the period runs. The event may be 'date of issue', 'date of service', 'date of receipt' or 'date of this notice'. These are not interchangeable. A notice that says 'within 30 days of issue' starts the clock on the issue date, even if you opened the envelope a week later. A notice that says 'within 30 days of service' starts it when the notice is served on you.

If the notice is only an intimation, do not treat it as a final demand. A DRC-01A Part A, for example, is a pre-notice communication. It still needs a response, but the reply route and the consequence differ from a formal show cause notice in DRC-01. Read the form, not just the tax amount.

Date of notice versus date of service

Every notice has an issue date. That is the date the officer signs or generates it. The service date is the date it is communicated to you. Section 169 of the CGST Act, 2017 lists the modes of service, including direct delivery, registered post, speed post, courier, email and the common portal. The mode matters because the clock normally starts from service, not from the date printed at the top, unless the notice itself says 'from the date of issue'. The official CBIC and GST portal material is where the statutory text and forms are published.

Keep the proof. For a portal notice, save the dashboard screenshot with the date and time, and download the PDF. For email, save the full header. For speed post, keep the envelope and tracking sheet. If the notice arrives by several routes, work on the earliest valid service date until you have advice to the contrary. That is the conservative approach.

Read the exact phrase: 'within 30 days of service', 'within 30 days of issue', 'within 15 days of receipt'. If it says issue, the postal delay does not help you. If it says receipt, your postal receipt may be evidence. If it says service, the portal upload or email delivery may fix the date.

How to fix the GST notice reply time limit for each notice type

Start with the form. The form tells you the rule; the rule tells you the default period; the notice tells you the actual period. The actual period can be longer than the statutory minimum, but not shorter where the Act fixes a minimum. The GST Council website carries the model GST laws and rules that state governments follow.

Scrutiny notice in ASMT-10

Under rule 99 of the CGST Rules, 2017, a scrutiny notice ordinarily gives 30 days to explain the discrepancy. If your ASMT-10 says 30 days from service, count calendar days. If it gives a different period, follow the notice, but check that it is not shorter than the rule allows. The reply is usually in ASMT-11 with the documents the officer asks for.

Pre-notice consultation and show cause notice

DRC-01A Part A is a communication before a demand notice. Reply in Part B within the time stated. A formal show cause notice in DRC-01 under the demand provisions must give you at least one month from service to reply, where section 73 or 74 applies. The notice may give more. Do not confuse the date for personal hearing with the date for the written reply; they can be different.

Registration queries and summons

A REG-03 registration query may use working days, not calendar days. Read the wording. A summons under section 70 usually fixes a date and time for appearance or production of documents. There is no standard 30-day reply period in a summons. If you cannot attend, write for an adjournment before the date.

Worked example: one notice, four possible dates

Assume Sanganer Traders, a Jaipur trader, receives an ASMT-10 dated 2 February 2026. The notice is uploaded on the portal on 3 February, emailed on 4 February and delivered by speed post on 7 February. It says 'reply within 30 days of service'. Counting starts the day after the event, so the due dates differ:

On these facts, the safe internal deadline is 28 February 2026, not 9 March. Leave time for the portal to accept the reply and for you to correct annexures. If the notice says 'date of issue', only the first row matters; the later dates are evidence of delay, not extension.

Asking for more time before the deadline

An extension is not a right you can claim automatically. It is a request to the proper officer. Make it before the due date, in writing, with the notice reference and a specific new date. Give a reason a stranger can verify: bank statements awaited from a branch, vendor ledger under reconciliation, a director hospitalised, a system migration. Attach whatever you already have.

Use the portal's permitted communication route where one exists. If the portal does not allow an extension request, deliver a signed letter to the office and keep the receipt. Send a copy by email if the notice gives an email address. Do not rely on a phone call. If the deadline is close, file a reply with the records you have and ask leave to supplement. A filed reply with a caveat is better than an empty portal.

Keep the request plain: 'I request an extension of time to file my reply to FORM GST ASMT-10 dated 2 February 2026, from 5 March 2026 to 20 March 2026, on the ground that the bank statements for February 2026 are awaited.' That sentence does more work than a page of explanation.

If the deadline has passed

First, confirm whether an order has already been passed. A missed reply does not always mean a missed case, but it does mean the officer may proceed ex parte. File the reply now with a covering application for condonation of delay. State the actual reason, not a generic 'bona fide mistake'. Attach proof of the date you received the notice, medical records, bank correspondence or whatever caused the delay.

If an order has been communicated, do not file another reply and assume it will be treated as an appeal. An appeal under section 107 has its own deadline and its own form. Check the date of communication and the limitation before you count. A late reply can sometimes be taken on record; a late appeal needs a separate condonation request.

Keep the language factual. 'The notice was uploaded on 3 February 2026 but I could access the portal only on 10 February 2026 because the registered email was not working' is better than 'I did not see it'.

Common mistakes and documents to keep

Treating the date on the PDF as the service date. Counting working days when the notice says days. Waiting for a paper copy when the portal notice is already served. Missing a DRC-01A because it looks like an intimation. Filing a reply without the annexures the notice asks for. Asking for extension after the due date and assuming it will be granted.

Keep these in one folder: the notice and all annexures; envelope, courier receipt or email header; portal screenshot with date and time; your date calculation sheet; the reply with annexures; the acknowledgement or ARN; any extension request and its receipt. If the officer calls you, record the date and the substance of the conversation in a file note.

• Download the notice and every annexure; save the portal timestamp.

• Highlight the operative paragraph and the exact reply period.

• Fix the service date from the portal, email header or postal proof.

• Count calendar days from the next day and mark a five-day internal buffer.

• Check whether the reply is ASMT-11, DRC-01A Part B or another form.

• Keep the filing acknowledgement and any extension request receipt.

Open the notice now, write the service date and the reply due date at the top of the first page, and put a five-day internal deadline in your calendar. That single step turns a vague worry into a date you can manage.

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