Changing the registered mobile number or email ID on the GST portal is a straightforward process. The method you follow will depend on the number of authorized signatories associated with the business.

When the Authorized Signatory is the Partner/Promoter

Steps to Update Mobile Number or Email ID:

1. Log in to the GST Portal
   • Navigate to Services → Registration → Amendment of Registration (Non-core Fields).

2. Edit Authorized Signatory Details

• Open the ‘Promoter/Partners’ tab.
• Locate the authorized signatory whose details you need to update. Click ‘Edit’ under the ‘Actions’ column.

3. Modify Contact Information

• Update the mobile number or email address as required.
• Click ‘Save’ to proceed.

4. OTP Verification

• An OTP will be sent to the newly entered mobile number and email address.
• Enter the OTPs to confirm the changes.

5. Submit the Verification Form

• Go to the ‘Verification’ tab.

   

• Fill in the necessary details, check the declaration box, and submit the form using DSC, E-signature, or EVC.

   

Note: If using EVC mode, the OTP will be sent to the updated mobile number and must be entered for final verification.

6. Application Status and Approval

• Once submitted, you will receive an ARN (Application Reference Number) to track the request.
• A confirmation message stating ‘Changes Approved’ will indicate that the mobile number and email ID have been successfully updated.

(When the Authorized Signatory is Different from the Promoter)

If the authorized signatory is not the promoter or there are multiple authorized signatories, follow these steps to update the registered mobile number or email ID on the GST portal.

Steps to Update the Contact Details:

1. Log in to the GST Portal

    

   • Navigate to Services → Registration → Amendment of Registration (Non-core Fields).

2. Add a New Authorized Signatory

• Open the ‘Authorized Signatory’ tab and click on ‘Add New’.

3. Enter the New Signatory’s Details

• Provide the necessary details of the new authorized signatory whose email and mobile number you want to use.
• Click ‘Save’ to proceed.

4. Submit the Verification Form

• Go to the ‘Verification’ tab.
• Enter the required details, check the declaration box, and submit the form using DSC, E-signature, or EVC.

5. Wait and Re-login

• Wait for 15 minutes before logging in again.
• Go to Services → Registration → Amendment of Registration (Non-core Fields).

6. Update the Primary Authorized Signatory

• Open the ‘Authorized Signatory’ tab.
• Deselect the existing primary authorized signatory.

7. Set the New Authorized Signatory as Primary

• Select the newly added authorized signatory as the primary one.
• Ensure the correct mobile number and email address are entered.
• An OTP will be sent for verification.

8. Complete the Verification

• Follow the same verification process as mentioned in Step 4.

9. Application Status and Confirmation

• Upon submission, you will receive an ARN (Application Reference Number) to track the request.
• Once approved, a confirmation message stating ‘Changes Approved’ will indicate that the mobile number and email ID have been successfully updated.