New GST registration changes: OTP check within 3 days
Most GST registration changes now take effect online, but OTP checks must be done within 3 days.
- Document
- Registration
- Dated
- 01 Nov 2026
- Effective
- Not stated. Notification dated 26.10.2026; the advisory says the portal changes have already been implemented.
- Act by
- A period of 3 days from the date of submission of the application
This page was written by Patron Accounting’s AI from the official release and reviewed before publishing. It explains the document in plain language. It is not the document itself. Where this page and the original differ, the original governs.
The short version
- Changes other than your main office address take effect once submitted and validated online.
- OTP verification of mobile and email is mandatory, within 3 days of filing REG-14.
- No application reference number (ARN) is generated if OTP verification is not completed in time.
- Changes to your principal place of business still go to the proper GST officer.
In short
This GSTN advisory explains how GST registration amendments now work, under Notification 05/2026-Central Tax dated 26 October 2026, the government order that made the change. The advisory does not give a separate effective date; it says the portal changes have already been made. It exists to tell GST-registered businesses about the new online validation and OTP steps after filing FORM GST REG-14.
What has changed
How it worked before
The advisory does not describe the earlier process in detail. Its one comparison is that changes to the principal place of business still go to the proper officer for examination.
What has changed
Rule 19 of the CGST Rules, the rule covering changes to GST registration, has been replaced. For changes other than the principal place of business, such as legal name, partners, directors, Karta, and additional places of business, the registration amendment takes effect on submission and online validation. The system checks PAN, DIN and CIN online. An amended registration certificate is made available on the portal where applicable. The advisory mentions both Rule 19 and Rule 21, but its text describes amendments under Rule 19.
Who this affects
If you run a business registered under GST and change your business name, add or remove a partner or director, change your Karta, or add a branch or additional place of business.
An example
Sharma Traders, a partnership shop registered under GST, adds a new partner and files REG-14 on a Monday. It must complete OTP checks for its Primary Authorised Signatory and one partner within 3 days, or no ARN is generated. Once the details are validated and the OTPs are verified, the amended certificate is available on the portal.
What you should do
If your amendment is not about your main office address, check that all details and uploaded documents are accurate before filing REG-14. Within 3 days, complete OTP verification of the mobile number and email for your Primary Authorised Signatory and one promoter, partner, director, Karta, member or trustee, as applies to you. You can do this at services.gst.gov.in/services/otpVerification, or via Services, then Registration, then OTP verification of GSTIN.
Deadline · A period of 3 days from the date of submission of the applicationIf you do nothing
If OTP verification is not completed within 3 days, the ARN will not be generated, so the application does not go through. The advisory does not state any penalty or interest for this. Changes to the principal place of business follow the separate proper officer route instead.
The terms explained
- ARN
- Application Reference Number, the number you get after a GST application is complete, confirming it went through.
- Principal place of business (PPOB)
- The main office or main address of your business as recorded in your GST registration.
- OTP verification
- Confirming your mobile number and email by entering a one-time password sent to them on the GST portal.
- Primary Authorised Signatory
- The main person authorised to sign and file GST documents for your business.
- Karta
- The head of a Hindu undivided family, one of the people the GST system can list as a business's responsible person.
The original document
| Issued by | GSTN |
|---|---|
| Document | Registration |
| Full title | Advisory on Key Changes in the GST Registration Amendment Process |
| Issued on | 01 November 2026 |
| Effective | Not stated. Notification dated 26.10.2026; the advisory says the portal changes have already been implemented. |
About Patron Accounting LLP
Patron Accounting LLP is a CA and CS-led accounting and compliance firm that has been working with businesses across India since 2019. We handle the work that keeps a company correct with every department it answers to: day-to-day bookkeeping and accounting, GST registration and returns, income tax filing and assessments, TDS, payroll and PF/ESI, company and LLP incorporation, ROC and MCA compliance, statutory and internal audit, physical stock and inventory audits, trademark and other registrations, and the certificates and reports that banks, buyers and regulators ask for.
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