How Long Does GST Registration Take? A Realistic Timeline
The rules give the officer 7 working days to approve a complete GST application where Aadhaar authentication is done and nothing is flagged, and 30 days where your premises are physically verified. Two newer routes, Rules 9A and 14A, grant registration within three working days. One query from the officer adds roughly two to three weeks.
- Rule 9(1): approval within 7 working days of submission. In physical verification cases: within 30 days.
- If a notice comes in Form GST REG-03, you get 7 working days to reply and the officer gets 7 working days after your reply.
- Rule 9(5): if the officer does not act within these limits, the application is deemed approved.
- Rule 14A, from 1 November 2025: registration within three working days for small suppliers who opt in and complete Aadhaar authentication.
- Your own clocks: 15 days for the TRN and 15 days for the Aadhaar link.
In this guide
What do the rules actually say?
You have probably heard "three days" from one person and "a month" from another. Both are quoting a real rule. Which one applies to you depends on three things: whether you chose Aadhaar authentication, whether the system or the officer wants your premises visited, and whether your papers raise a query.
| Your situation | Time limit for the officer or system | Where it comes from |
|---|---|---|
| Aadhaar authentication done, not flagged, papers in order | 7 working days from submission | Rule 9(1) |
| You did not opt for Aadhaar authentication, or it failed | 30 days from submission, after physical verification | Proviso to Rule 9(1) |
| Aadhaar done, but the portal flags the application on risk parameters | 30 days from submission, after physical verification | Proviso to Rule 9(1) |
| The officer, with an Assistant Commissioner's approval, wants a visit | 30 days from submission | Proviso to Rule 9(1) |
| The portal picks your application as low risk | 3 working days from submission, granted electronically | Rule 9A |
| You opt for Rule 14A and complete Aadhaar authentication | 3 working days from submission, granted electronically | Rule 14A |
"Working days" leaves out weekly offs and holidays, so 7 working days is usually 9 to 11 days on the calendar. The 30-day limit is in plain days.
Who gets the three-working-day route?
There are two doors. Rule 9A is not in your hands: the portal picks applications using data analysis and risk parameters. Rule 14A is your choice. You can opt in if you estimate that your output tax (the GST you charge) on sales to GST-registered buyers will not exceed Rs 2.5 lakh a month, all taxes and cess together. Aadhaar authentication is compulsory for it, and you can hold only one such registration per State on one PAN. The eligibility sum is worked out in the step-by-step registration guide.
The timeline, stage by stage
| Stage | Who acts | Time |
|---|---|---|
| Part A of Form GST REG-01: PAN, mobile and email check | You | Minutes. You get a Temporary Reference Number (TRN), valid 15 days |
| Part B: business details, documents, signature | You | An hour or two if scans are ready. Must be submitted within the TRN's 15 days |
| Aadhaar authentication by OTP link, or a biometric visit if you are selected | You | Link valid 15 days. The ARN is issued only after this step |
| Officer examines the application | Officer | 7 working days, or 30 days in physical verification cases |
| Notice in Form GST REG-03, if any | Officer | Within the same 7 working days or 30 days |
| Reply in Form GST REG-04 | You | 7 working days from the notice |
| Decision after your reply | Officer | 7 working days from the reply |
| Certificate in Form GST REG-06 | System | On approval |
Is there deemed approval?
Yes. Rule 9(5) says that if the officer does not act within 7 working days (or 30 days in physical verification cases), or within 7 working days of receiving your reply, the application is deemed to have been approved. Why does this rule exist? So that an honest applicant is not left waiting without an answer.
Should you plan around it? No. CBIC's Instruction 03/2025-GST tells officers to act within the time limits so that applications do not go through on a deemed basis, and seniors are asked to monitor this. In practice you will get an approval, a notice or a rejection inside the window. Treat deemed approval as a safety net, not a route.
What slows it down?
- Aadhaar not linked to your current mobile. The OTP goes only to the linked number. No authentication, no ARN.
- Being picked for biometric authentication. You must book a slot at a GST Suvidha Kendra and carry originals. The clock for the officer starts only after that.
- Physical verification. The limit moves from 7 working days to 30 days. The officer's report has to be uploaded at least 5 days before the 30 days end.
- A REG-03 notice. Usually about address proof. It adds up to 14 working days: 7 for you and 7 for the officer.
- Your own delays. Starting Part A before the scans are ready, or reading the notice email four days late.
The papers that prevent most notices are listed in the proprietor's document checklist.
A worked example with dates
Neha submits her application and gets the ARN on Monday, 2 February 2026. She has opted for Aadhaar authentication and expects sales of Rs 3,00,000 a month.
- Clean case. Seven working days end on Wednesday, 11 February, if there is no holiday in between. She loses about a week and a half.
- One notice. The officer issues REG-03 on 11 February. Neha replies on the last day, 20 February. The officer has until about 3 March. Total: a month.
- Same notice, quick reply. She replies on 12 February. The officer's seven working days end around 23 February. She has saved a week by acting in a day.
What is a week worth? At Rs 3,00,000 a month, roughly Rs 70,000 of sales she cannot bill, while rent of, say, Rs 10,000 a month keeps running. Government fee for all of this: Rs 0, as explained in GST registration fees.
What can you do while you wait?
| You can | You cannot |
|---|---|
| Track the ARN under Services, Registration, Track Application Status | Charge GST on a bill |
| Check your registered email and SMS daily for a notice | Issue a tax invoice or print a GSTIN on anything |
| Open the bank account you will add after the grant | Use the ARN in place of a GSTIN |
| Keep purchase bills in the business name and PAN | File any GST return |
| Prepare product listings and HSN codes | Complete seller sign-up where a marketplace asks for a GSTIN |
If you had already crossed the limit for compulsory registration before applying, the date from which GST applies to you and the credit on stock you hold follow separate rules. Take advice on that before you raise your first invoice.
The mistake people usually make
They count from the day they started the form. The officer's clock starts when the application is submitted and the ARN is generated, not when Part A was filled. A seller who takes ten days to finish Part B and five more to complete Aadhaar authentication has used fifteen days before the 7 working days even begin. The second mistake is treating the reply time as spare time. Reply on day one, not day seven.
Sources
- CGST Rule 9: verification of the application and approval, with amendment notes (GSTZen copy, secondary) (checked 12 Nov 2026)
- CGST Rule 9 on the CBIC tax information portal
- Notification 18/2025-Central Tax dated 31 October 2025: Rules 9A and 14A (copy of the notification) (checked 12 Nov 2026)
- Text of CBIC Instruction No. 03/2025-GST dated 17 April 2025 (TaxGuru copy, secondary) (checked 12 Nov 2026)
- CBIC Instruction No. 03/2025-GST (taxinformation.cbic.gov.in)
- GST portal user manual: applying for registration as a normal taxpayer (checked 12 Nov 2026)
- GST portal user manual: application for filing clarification (checked 12 Nov 2026)
How AprilTax can help
AprilTax's Tax Experts handle GST registration online for a fixed fee of Rs 1,499. The form lists the documents for your type of business and premises, so the application goes in complete and a query is less likely. How long the officer takes is decided by the rules above, not by us. See GST registration with AprilTax.
Frequently asked questions
How many days does GST registration take?
Can I get GST registration in three days?
What is deemed approval of GST registration?
How much time does a REG-03 notice add?
When does GST registration take 30 days?
From which date is the 7 working days counted?
Can I start selling with the ARN before the GSTIN comes?
How do I check the status of my GST registration application?
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