How to Retrieve Email ID and Username on GST Portal 2025 - Complete Guide

Contents

1. Introduction: GST Portal Login Credentials Recovery
2. Understanding GST Portal Authentication System
3. How to Retrieve Registered Email ID
   1. Method 1: Via SMS (14409)
   2. Method 2: Through GST Portal
   3. Method 3: Using Forgot Username Option
4. How to Retrieve Username
   1. Method 1: Via SMS to 14409
   2. Method 2: Step-by-Step Portal Process
   3. Security Questions Verification
5. Special Situations and Solutions
   1. When You Don't Have Mobile Access
   2. When Consultant Won't Share Credentials
   3. Approaching Jurisdictional Officer
6. How to Update Email and Mobile Number
   1. For Single Authorized Signatory
   2. Adding New Authorized Signatory
   3. Verification and Submission Process
7. Prerequisites and Requirements
8. Common Issues and Troubleshooting
9. Who Needs This Information
10. Security Best Practices
11. Timeline of GST Portal Developments
12. You may also like
13. Frequently Asked Questions (FAQs)
14. Conclusion

Introduction: GST Portal Login Credentials Recovery

Accessing the GST Portal is essential for every registered taxpayer to file returns, make payments, and stay compliant with GST regulations. However, many taxpayers face a common challenge when they forget their registered email ID or username, making it impossible to log into the portal. This comprehensive guide for 2025 will help you recover your GST Portal credentials through multiple methods, including SMS, online portal procedures, and jurisdictional officer assistance.

The GST Portal has over 1.4 crore registered taxpayers as of 2024, and credential recovery is one of the most frequently requested services by users who need to access their accounts for compliance purposes.

Whether you are a business owner, tax professional, or authorized signatory, this guide will walk you through every possible scenario for retrieving your forgotten credentials and regaining access to your GST account. We will also cover situations where your mobile number has changed or your consultant is not sharing your login details.

Click to reveal a quick tip!

Always maintain updated contact information on the GST Portal. Save your username and registered email ID in a secure location, and consider using a password manager to avoid credential recovery hassles in the future.

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Understanding GST Portal Authentication System

The GST Portal uses a multi-layered authentication system to protect taxpayer data and ensure secure access. Your GST account is linked to three critical identifiers: your 15-digit GSTIN (Goods and Services Tax Identification Number), your username, and your registered email ID and mobile number.

Note: All GST Portal communications, including OTPs for authentication, notices, and compliance reminders, are sent to your registered email ID and mobile number. Keeping these details current is crucial for uninterrupted access.

Authentication Component	Purpose	When It's Used	Recovery Method
GSTIN	Unique business identifier	Login, returns filing, all transactions	Available on GST Certificate
Username	Portal login credential	Every login attempt	SMS to 14409 or Portal retrieval
Registered Email ID	Receives credentials and notifications	Password reset, username recovery	SMS to 14409 or Portal display
Registered Mobile	OTP verification	Login, changes, filing	Amendment through portal or officer

The GST Portal was launched on July 1, 2017, and has evolved significantly with enhanced security features including two-factor authentication (2FA), OTP verification, and security question validation to protect taxpayer accounts from unauthorized access.

Important: These recovery methods only work if you use the registered mobile number provided during GST registration. If your mobile number has changed, you will need to follow different procedures outlined in the Special Situations section of this guide.

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How to Retrieve Registered Email ID

Your registered email ID is crucial for receiving GST Portal communications and recovering your username. If you have forgotten which email address is registered with your GSTIN, there are three straightforward methods to retrieve this information.

Method 1: Via SMS (14409)

This is the quickest and easiest method to retrieve your registered email ID if you have access to your registered mobile number.

1. Step 1: Open the messaging app on your registered mobile number (the number you provided during GST registration).
2. Step 2: Compose a new SMS with the following format: EMAIL <space> 15-digit GSTIN
3. Step 3: For example, if your GSTIN is 27AXXXX1234X1Z5, type: EMAIL 27AXXXX1234X1Z5
4. Step 4: Send this SMS to 14409
5. Step 5: Within a few minutes, you will receive an SMS reply containing your registered email ID.

Note: The SMS service is free of charge and operates 24/7. However, it only works from the mobile number registered in your GST account.

Method 2: Through GST Portal

If you prefer using the online portal, follow these steps to view your registered email ID:

1. Step 1: Visit the official GST Portal at www.gst.gov.in
2. Step 2: Click on the "Login" button in the top-right corner of the homepage.
3. Step 3: On the login page, click on "Forgot Username" or "Forgot Password" link below the login button.
4. Step 4: Enter your 15-digit GSTIN in the provided field.
5. Step 5: Complete the captcha verification by typing the characters shown in the image.
6. Step 6: Click on "Generate OTP" button.
7. Step 7: An OTP will be sent to your registered mobile number.
8. Step 8: Enter the OTP received on your mobile phone.
9. Step 9: After successful OTP verification, your registered email ID will be displayed on the screen.

Method 3: Using Forgot Username Option

This method combines username and email retrieval in one process:

1. Step 1: Go to www.gst.gov.in and click "Existing User Login".
2. Step 2: Click on the "Forgot Username" link.
3. Step 3: Enter your Provisional ID (if available) or your GSTIN.
4. Step 4: Complete the captcha and click "Generate OTP".
5. Step 5: Enter the OTP sent to your registered mobile and email.
6. Step 6: The system will display your registered email address before proceeding to username recovery.

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How to Retrieve Username

Your username is the primary credential required to log into the GST Portal. If you have forgotten your username, here are the proven methods to recover it in 2025.

Method 1: Via SMS to 14409

Similar to email retrieval, you can recover your username through SMS using your registered mobile number.

1. Step 1: From your registered mobile number, open the SMS application.
2. Step 2: Compose a new message with the format: USERNAME <space> 15-digit GSTIN
3. Step 3: Example: USERNAME 27AXXXX1234X1Z5
4. Step 4: Send the SMS to 14409
5. Step 5: You will receive your username via SMS within a few minutes.

Note: The SMS method is case-insensitive, so you can type in uppercase or lowercase letters. The service recognizes both formats.

Method 2: Step-by-Step Portal Process

For a more detailed recovery process through the GST Portal:

1. Step 1: Access www.gst.gov.in in your web browser.
2. Step 2: On the GST homepage, click the "Existing User Login" button.
3. Step 3: The login page will be displayed. Click on the "Forgot Username" link located below the LOGIN button.
4. Step 4: The Forgot Username page will appear. In the "Provisional ID" field, enter the Provisional ID that you received via email or SMS during your initial GST registration. If you do not have the Provisional ID, you can enter your GSTIN.
5. Step 5: In the "Type the characters you see in the image below" field, enter the captcha text shown on the screen carefully.
6. Step 6: Click the "GENERATE OTP" button. A One Time Password will be sent to both your registered email address and mobile number.
7. Step 7: In the "Enter OTP" field, enter the OTP that was sent to your registered email address and mobile number. The OTP is typically valid for 10 minutes.
8. Step 8: If your OTP has expired, click the "RESEND OTP" link to receive a new OTP.
9. Step 9: Click the "CONTINUE" button to proceed.

Security Questions Verification

After OTP verification, you will need to answer security questions for additional authentication:

1. Step 1: The Security Questions page will be displayed on your screen.
2. Step 2: You will see three security questions that you set up during your initial GST enrollment.
3. Step 3: Enter the correct answers to all three security questions in the respective fields.
4. Step 4: Ensure your answers match exactly as you had entered them during registration (case-sensitive).
5. Step 5: Click the "SUBMIT" button after answering all questions.
6. Step 6: Upon successful verification, the system will display the message: "Username has been emailed to your registered Email address. Kindly check your email."
7. Step 7: Check your registered email inbox (and spam folder) for an email from the GST Portal containing your username.
8. Step 8: You can now use this username to log into the GST Portal.

Important: If you cannot remember the answers to your security questions, you will need to contact your jurisdictional GST officer for assistance. This is a security measure to prevent unauthorized access to GST accounts.

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Special Situations and Solutions

Not all credential recovery situations are straightforward. Here are solutions for complex scenarios that taxpayers commonly face.

When You Don't Have Mobile Access

If your registered mobile number is lost, stolen, or no longer accessible, standard SMS and OTP methods will not work. In such cases:

1. Step 1: Visit the GST Portal's "Search Taxpayer" option at www.gst.gov.in to find your jurisdictional GST officer's contact details.
2. Step 2: Prepare the following documents: Copy of GST Registration Certificate, valid photo identity proof (Aadhaar card, PAN card, passport, or driving license), proof of business (business address proof, shop establishment certificate, or utility bills), authorization letter if you are a representative, and any other documents establishing your relationship with the GSTIN.
3. Step 3: Visit your jurisdictional GST office with these documents or contact them via phone or email.
4. Step 4: Submit a written application requesting assistance to reset your mobile number and recover your login credentials.
5. Step 5: The jurisdictional officer will verify your identity and documents.
6. Step 6: After verification, the officer will update your mobile number in the system and issue you a new temporary username and password via email.
7. Step 7: Use the temporary credentials to log into the GST Portal using the "First Time Login" link.
8. Step 8: The system will prompt you to create a new username and password during your first login.

Note: This process may take 2-5 business days depending on the officer's availability and workload. Plan accordingly if you have urgent filing deadlines.

When Consultant Won't Share Credentials

A common problem faced by many taxpayers is when consultants or intermediaries who handled their GST registration used their own email and mobile number, and are now not sharing the login credentials. The Central Board of Indirect Taxes and Customs (CBIC) issued a press release on June 14, 2018, specifically addressing this issue.

If you are in this situation, follow these steps:

1. Step 1: Access the GST Portal's "Search Taxpayer" feature to identify your jurisdictional tax officer. Enter your GSTIN, and your jurisdiction will be displayed in red text.
2. Step 2: Prepare comprehensive documentation: Original GST Registration Certificate, business registration documents (partnership deed, MOA/AOA, proprietorship proof), identity proof of all partners/directors/proprietor, PAN card copies of the business and authorized persons, proof of business address, and any correspondence with the consultant (emails, agreements, payment receipts).
3. Step 3: Draft a formal application addressed to the jurisdictional officer explaining the situation. Include your GSTIN, business name, nature of the problem (consultant not sharing credentials), your current contact details (mobile and email), and a request to update the email and mobile number to regain access.
4. Step 4: Visit the jurisdictional GST office in person with all documents and the application.
5. Step 5: The tax officer will verify your identity and authenticate that you are indeed associated with the GSTIN as a stakeholder or authorized signatory.
6. Step 6: After successful verification, the officer will update your email and mobile number in the GST system.
7. Step 7: You will receive a new username and temporary password via email at your newly registered email address.
8. Step 8: Access the GST Portal using the "First Time Login" option with your new credentials.
9. Step 9: Change your username and create a strong password as prompted by the system.
10. Step 10: Ensure all your contact details are correctly updated in the portal and keep your credentials secure.

Warning: To prevent this situation, always ensure that your own email ID and mobile number are registered as the primary contact details during GST registration. Never allow consultants to use their personal credentials for your business's GST account.

Approaching Jurisdictional Officer

Here is how to effectively approach your jurisdictional officer for credential recovery assistance:

Finding Your Jurisdictional Officer:

1. Visit www.gst.gov.in
2. Click on "Search Taxpayer" in the main menu
3. Enter your GSTIN and click search
4. Your jurisdictional details will be displayed, including the officer's name, designation, office address, and contact number
5. Alternatively, check your GST Registration Certificate where the jurisdiction is mentioned

What the Jurisdictional Officer Can Do:

• Change the email ID and mobile number of existing authorized signatories after proper verification
• Mark an existing promoter or partner as the primary authorized signatory
• Reset username and issue temporary passwords
• Assist in cases where the primary authorized signatory is deceased or not traceable

What the Jurisdictional Officer Cannot Do:

• Add a new person as an authorized signatory (this must be done by existing authorized persons through the portal)
• Bypass security protocols without proper documentation
• Share credentials over phone or email without verification

Note: Always carry original documents when visiting the jurisdictional officer. Photocopies or digital copies may not be accepted for verification purposes.

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How to Update Email and Mobile Number

Once you regain access to your GST account, it is crucial to update your contact details to prevent future access issues. The process for updating email and mobile number depends on whether you want to change the existing authorized signatory's details or add a new authorized signatory.

For Single Authorized Signatory

If you want to update the mobile number or email address of the current authorized signatory without adding new people:

1. Step 1: Log into the GST Portal at www.gst.gov.in using your username and password.
2. Step 2: Navigate to Services → Registration → Amendment of Registration Non-core Fields.
3. Step 3: Click on the "Promoter/Partners" tab.
4. Step 4: Locate the authorized signatory whose details you want to change in the list.
5. Step 5: Click the "Edit" button under the "Actions" column next to that signatory's name.
6. Step 6: Update the mobile number in the mobile number field and/or the email address in the email ID field with the new contact information.
7. Step 7: Click the "Save" button to save your changes.
8. Step 8: OTPs will be sent to both the new mobile number and the new email address you entered.
9. Step 9: Check your new mobile number for SMS OTP and your new email inbox for the email OTP.
10. Step 10: Enter both OTPs in the verification fields provided.
11. Step 11: After successful OTP verification, the changes will be reflected in the system.
12. Step 12: Navigate to the "Verification" tab at the top of the page.
13. Step 13: In the "Name of Authorized Signatory" dropdown, select the appropriate signatory.
14. Step 14: Enter the place of submission in the "Place" field.
15. Step 15: Tick the declaration checkbox confirming that all information provided is true and correct.
16. Step 16: Choose your verification method: DSC (Digital Signature Certificate), E-Signature, or EVC (Electronic Verification Code).
17. Step 17: Click "Submit with DSC", "Submit with E-Signature", or "Submit with EVC" as applicable.
18. Step 18: Upon successful submission, you will receive an Application Reference Number (ARN) and an acknowledgment on both your old and new contact details within 15 minutes.

Note: For companies registered as private limited, public limited, or LLPs, DSC is mandatory for submission. Proprietorships, partnerships, and individuals can use EVC or E-Signature for verification.

Adding New Authorized Signatory

If you want to completely change the primary authorized signatory to a different person with a different email and mobile number:

1. Step 1: Log into the GST Portal at www.gst.gov.in.
2. Step 2: Go to Services → Registration → Amendment of Registration Non-core Fields.
3. Step 3: Click on the "Authorized Signatory" tab.
4. Step 4: Click the "Add New" button to add a new authorized signatory.
5. Step 5: Fill in all required details of the new authorized signatory: Full name as per PAN, designation (director, partner, proprietor, authorized representative, etc.), PAN number, mobile number, email address, Aadhaar number (if applicable), and residential address.
6. Step 6: Upload any required documents such as authorization letter, board resolution (for companies), or partnership deed extract (for partnerships).
7. Step 7: Click "Save" to save the new signatory's details.
8. Step 8: Navigate to the "Verification" tab.
9. Step 9: Select the authorized signatory (it can be either the old or new signatory), enter the place, and tick the declaration.
10. Step 10: Submit the application using DSC, E-Signature, or EVC.
11. Step 11: After submission, wait for 15 minutes. You will receive an acknowledgment on the email addresses and mobile numbers.
12. Step 12: Log out from the GST Portal and wait for the stipulated time to pass.
13. Step 13: Log back into the GST Portal after 15 minutes.
14. Step 14: Navigate again to Services → Registration → Amendment of Registration Non-core Fields.
15. Step 15: Go to the "Authorized Signatory" tab.
16. Step 16: Locate the old authorized signatory in the list and deselect (untick) the "Primary Authorized Signatory" checkbox next to their name.
17. Step 17: Now locate the newly added authorized signatory and select (tick) the "Primary Authorized Signatory" checkbox next to their name.
18. Step 18: Double-check that the mobile number and email address displayed for the new primary signatory are correct. The system pre-fetches the old details, so ensure you verify the new contact information.
19. Step 19: Go to the "Verification" tab again.
20. Step 20: Select the signatory name, enter the place, tick the declaration, and submit using DSC/E-Signature/EVC.
21. Step 21: After submission, you will receive an acknowledgment within 15 minutes on the new email address and mobile number.
22. Step 22: The new authorized signatory is now set as the primary contact, and all future communications will be sent to the new email and mobile number.

Important: Once the new signatory becomes the primary authorized signatory, all OTPs and login credentials will be sent only to the new contact details. Ensure the new signatory has immediate access to these credentials.

Verification and Submission Process

Understanding the verification methods is crucial for successful amendment submission:

DSC (Digital Signature Certificate):

• Required for companies, LLPs, and certain other entity types
• Provides the highest level of authentication
• Must be registered on the GST Portal before use
• Requires USB token and emSigner utility installed on your computer
• Valid for one to three years depending on the certificate purchased

E-Signature (Aadhaar-based):

• Available for individuals whose Aadhaar is linked with their mobile number
• Uses Aadhaar authentication through UIDAI
• OTP is sent to Aadhaar-registered mobile number
• No additional setup or cost required
• Suitable for proprietorships and individual taxpayers

EVC (Electronic Verification Code):

• Can be used by most taxpayer types except companies
• OTP-based verification sent to registered mobile and email
• Valid for a limited time (usually 10 minutes)
• Simplest method requiring no additional infrastructure
• Most commonly used verification method

Entity Type	Allowed Verification Methods	Mandatory Method
Proprietorship	DSC, E-Signature, EVC	None (any method allowed)
Partnership Firm	DSC, E-Signature, EVC	None (any method allowed)
Private Limited Company	DSC only	DSC mandatory
Public Limited Company	DSC only	DSC mandatory
Limited Liability Partnership (LLP)	DSC only	DSC mandatory
Hindu Undivided Family (HUF)	DSC, E-Signature, EVC	None (any method allowed)

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Prerequisites and Requirements

Before attempting to retrieve your GST Portal credentials or update your contact information, ensure you have the following:

For Credential Recovery:

• Your 15-digit GSTIN (available on your GST Registration Certificate)
• Access to your registered mobile number (for SMS and OTP verification)
• Knowledge of answers to your security questions (for username retrieval)
• Provisional ID (if you have not logged in since initial registration)
• Valid email access to receive credentials

For Updating Contact Details:

• Active GST Portal login credentials (username and password)
• New mobile number that is active and accessible for receiving OTPs
• New email ID that is active and accessible for receiving OTPs and communications
• DSC (for companies and LLPs) or ability to use E-Signature/EVC
• If adding a new authorized signatory: their complete personal and contact details, PAN card details, authorization documents (board resolution, partnership deed, etc.)

For Jurisdictional Officer Assistance:

• Original GST Registration Certificate
• Government-issued photo identity proof (Aadhaar, PAN, passport, voter ID, driving license)
• Business registration documents (partnership deed, MOA/AOA, shop establishment license)
• Proof of business address (electricity bill, rent agreement, property tax receipt)
• Authorization letter (if you are not the proprietor/director/partner)
• Recent photographs (passport size) of the person requesting assistance
• Any correspondence establishing your relationship with the GSTIN

Note: Keep digital and physical copies of all important documents related to your GST registration. This will expedite the recovery process if you face access issues in the future.

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Common Issues and Troubleshooting

Even when following the correct procedures, taxpayers may encounter various issues. Here are solutions to common problems:

OTP Not Received

Possible Causes: Network delay, DND (Do Not Disturb) activated on mobile, email in spam folder, incorrect mobile number or email registered.

Solutions: Wait for 2-3 minutes as there might be network delays. Check your spam or junk email folder for the OTP email. Temporarily disable DND on your mobile number by contacting your telecom operator. Ensure you are entering the correct GSTIN to receive OTP on the right number. Use the "Resend OTP" option if the OTP has not arrived within 5 minutes. Try the alternate method (SMS service to 14409) if portal OTP fails repeatedly.

Security Questions Not Remembered

Issue: Unable to retrieve username because you cannot answer the security questions correctly.

Solution: Try common answers you typically use for security questions. Check if there are case sensitivity issues (some systems differentiate between "Mumbai" and "mumbai"). If all attempts fail, you must approach your jurisdictional GST officer with proper identification and business documents to reset your credentials.

SMS Service Not Working

Possible Causes: Incorrect SMS format, typo in GSTIN, mobile number not registered, SMS sent from unregistered number.

Solutions: Verify the SMS format is exactly: "EMAIL GSTIN" or "USERNAME GSTIN" with a single space between the keyword and GSTIN. Double-check your 15-digit GSTIN for any typing errors. Ensure you are sending the SMS from the exact mobile number registered in your GST account. Wait for 5 minutes and retry if no response is received. If the issue persists, use the GST Portal method instead of SMS.

Provisional ID Not Available

Issue: The "Forgot Username" page asks for a Provisional ID, but you do not have it.

Solution: You can enter your GSTIN instead of the Provisional ID in most cases. The Provisional ID was primarily used during the migration from the old VAT system to GST. If your registration was done after July 2017, you can use your GSTIN. Check your email for the initial GST registration emails which might contain the Provisional ID. Contact GST Helpdesk at 1800-103-4786 for assistance if neither GSTIN nor Provisional ID works.

Unable to Submit Amendment

Common Errors: DSC not registered, E-Signature authentication failure, EVC not generated, validation errors in entered data.

Solutions for DSC Issues: Ensure your DSC is registered on the GST Portal (Services → User Services → Manage DSC). Update the emSigner utility to the latest version. Check if your DSC has expired and renew if necessary. Ensure the DSC USB token is properly connected to your computer.

Solutions for E-Signature Issues: Verify that your Aadhaar is linked with your mobile number. Ensure you are entering the correct Aadhaar number. Check if your mobile number linked with Aadhaar is active. Use an alternate verification method if E-Signature repeatedly fails.

Solutions for EVC Issues: Check if your PAN is linked with Aadhaar (required for EVC generation). Ensure you are receiving OTPs on both your registered mobile and email. Verify that the OTP has not expired (typically valid for 10 minutes). Use the correct OTP from the most recent message if multiple OTPs were generated.

Browser Compatibility Issues

Issue: GST Portal not loading properly or features not working.

Solution: Use Google Chrome, Mozilla Firefox, or Microsoft Edge (latest versions). Clear your browser cache and cookies. Disable browser extensions that might interfere with the portal. Ensure JavaScript is enabled in your browser settings. Try accessing the portal in incognito or private browsing mode. Update your browser to the latest version available.

Changes Not Reflecting After Submission

Issue: Updated mobile number or email not showing in the system.

Solution: Wait for the acknowledgment (usually within 15 minutes of submission). Log out completely from the GST Portal and log in again after 15-20 minutes. Check the ARN (Application Reference Number) status under Services → Returns → Track Return Status. If changes still do not reflect after 24 hours, contact the GST Helpdesk or your jurisdictional officer. Keep the ARN and acknowledgment safe for reference.

Helpline Information: For technical issues with the GST Portal, you can contact the GST Helpdesk at 1800-103-4786 (toll-free) from Monday to Friday, 9:00 AM to 9:00 PM, and Saturday from 9:00 AM to 6:00 PM. For email support, write to helpdesk@gst.gov.in.

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Who Needs This Information

Understanding how to retrieve GST Portal credentials and update contact information is essential for various categories of taxpayers and professionals:

Business Owners and Proprietors:

• Small business owners who registered for GST but have not logged in for an extended period
• Proprietors who have changed their mobile number or email address
• Business owners who lost their login credentials after a computer crash or phone loss
• Entrepreneurs who hired consultants for GST registration and now need independent access

Tax Professionals and Consultants:

• Chartered Accountants managing multiple GST accounts for different clients
• Tax consultants helping clients regain access to locked accounts
• GST practitioners who need to update client contact details for better service
• Accounting firms managing GST compliance for corporate clients

Company Officials:

• Finance managers responsible for GST compliance in their organizations
• Directors or partners who need to update authorized signatory details
• Company secretaries managing corporate GST registrations
• Accounts personnel who handle day-to-day GST operations

Special Situations:

• Legal heirs of deceased proprietors needing to access GST accounts
• New partners or directors added to existing businesses
• Businesses that have changed management or ownership
• Companies undergoing restructuring or merger processes

Specific Sectors:

• E-commerce sellers on platforms like Amazon, Flipkart who need regular GST access
• Exporters requiring GST portal access for refund applications and shipping bill filing
• Service providers under reverse charge mechanism needing frequent portal access
• Casual taxable persons with temporary GST registrations
• SEZ units and SEZ developers with specific compliance requirements

Note: As of 2024, there are over 1.4 crore registered GST taxpayers in India. A significant percentage face credential access issues at some point, making this knowledge universally valuable for the GST community.

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Security Best Practices

Protecting your GST Portal credentials is crucial to prevent unauthorized access and potential misuse of your GST account. Follow these security best practices:

Password Management:

• Create a strong password with at least 8 characters, including uppercase letters, lowercase letters, numbers, and special characters
• Avoid using common passwords like "password123", "gstin@123", or your business name
• Never share your password with anyone, including consultants or employees (use authorized signatory feature instead)
• Change your password every 90 days to enhance security
• Do not use the same password for GST Portal and other online accounts
• Consider using a reputable password manager to securely store your credentials

Credential Storage:

• Maintain a secure record of your username and registered email ID in a password-protected file or physical safe
• Save your security question answers in a secure location separate from your password
• Keep a copy of your GSTIN, username, and registered contact details in your business records
• Never store passwords in plain text files, browser autofill, or mobile notes without encryption
• If writing down credentials, store them in a locked cabinet or safe accessible only to authorized persons

Contact Information Management:

• Always use your own or your business's official email ID and mobile number during GST registration
• Never allow consultants or service providers to use their personal contact details for your GST account
• Update your email and mobile number immediately if either changes
• Regularly check your registered email and mobile for GST communications
• Add GST Portal email addresses to your email safe sender list to avoid missing important notifications

Access Control:

• Use the authorized signatory feature to provide controlled access to employees or consultants instead of sharing your login credentials
• Assign specific roles and permissions to different users based on their responsibilities
• Remove access for employees or consultants who have left your organization or stopped working with you
• Regularly audit the list of authorized signatories in your GST account
• Use DSC for companies and LLPs as it provides an additional layer of security

Device and Network Security:

• Always log out from the GST Portal after completing your work, especially on shared or public computers
• Clear browser cache and cookies after using the GST Portal on public computers
• Use secure, trusted networks when accessing the GST Portal; avoid public WiFi networks
• Enable two-factor authentication wherever available
• Keep your computer's antivirus and operating system updated to prevent malware attacks
• Use official GST Portal URL (www.gst.gov.in) and verify the SSL certificate before entering credentials

Phishing and Fraud Prevention:

• Be cautious of emails or SMS claiming to be from GST authorities asking for your password or OTP
• GST Department never asks for your password, OTP, or banking details via email or phone
• Verify the sender's email address carefully; official GST emails come from "@gst.gov.in" domain
• Never click on suspicious links in emails claiming to be from GST Portal
• Report any phishing attempts or fraudulent communications to cybercrime authorities
• Be wary of unsolicited calls from people claiming to be GST officers asking for sensitive information

Critical Security Alert: If you suspect that your GST Portal account has been compromised or accessed without authorization, immediately change your password, update your registered mobile and email if necessary, contact your jurisdictional GST officer, and file a complaint with the cybercrime cell if fraud has occurred.

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Timeline of GST Portal Developments

Understanding the evolution of the GST Portal helps in comprehending current procedures and anticipating future changes.

Date	Development/Announcement	Impact on Credential Management
July 1, 2017	GST launched in India; GST Portal goes live	Initial registration process established; provisional IDs issued for VAT migrated taxpayers
June 14, 2018	CBIC press release on email and mobile update functionality	Jurisdictional officers authorized to help taxpayers update contact details when consultants don't share credentials
July 1, 2020	SMS facility for filing Nil GSTR-1 introduced	SMS to 14409 becomes more prominent; taxpayers become familiar with SMS-based GST services
August 26, 2021	Sequential filing of returns implemented	Increased importance of maintaining portal access to avoid filing blockages
January 1, 2022	GSTR-3B filing dependent on previous period filing	Portal access becomes more critical; credential recovery requests increase
Throughout 2023	Enhanced security features including improved OTP systems	Two-factor authentication strengthened; security questions become more important for credential recovery
2024	Portal interface improvements and user experience enhancements	Forgot username/password links made more prominent; recovery process streamlined
2025 (Current Year)	Continued focus on ease of compliance and user support	Multiple recovery methods (SMS, portal, jurisdictional officer) well-established and functioning smoothly

Key Filing Deadlines for 2025 (Relevant to Portal Access):

• GSTR-1 (Monthly): 11th of the following month
• GSTR-1 (Quarterly): 13th of the month following the quarter
• GSTR-3B (Monthly): 20th of the following month
• GSTR-3B (Quarterly under QRMP): 22nd or 24th of the month following the quarter (depending on state)
• GSTR-7 (TDS): 10th of the following month
• GSTR-8 (E-commerce): 10th of the following month
• Annual Return (GSTR-9): December 31st of the following financial year

Important: Ensure your GST Portal access is working at least 7-10 days before any filing deadline to allow time for credential recovery if needed. Last-minute access issues can lead to late filing penalties of ₹50 per day (₹20 per day for nil returns).

Frequently Asked Questions (FAQs) on GST Portal Email and Username Retrieval

What is the SMS number for retrieving GST Portal username and email?

The SMS number for retrieving your GST Portal username and email ID is 14409. You need to send an SMS from your registered mobile number in the format "EMAIL GSTIN" or "USERNAME GSTIN" where GSTIN is your 15-digit GST identification number. The service is free and available 24/7.

Can I retrieve my username if I don't have access to my registered mobile number?

If you do not have access to your registered mobile number, you cannot use the SMS or OTP-based methods. In such cases, you must visit your jurisdictional GST officer with proper identification documents (PAN card, Aadhaar, GST certificate, business documents). The officer will verify your identity and update your mobile number, then issue new temporary credentials to your updated contact details.

How long does it take to receive the username via email after following the portal process?

After successfully completing the OTP verification and security questions on the GST Portal, your username is typically emailed to your registered email address within 5-10 minutes. If you do not receive the email within 15 minutes, check your spam or junk folder. If the email still has not arrived, you can retry the process or use the SMS method as an alternative.

What should I do if I cannot remember the answers to my security questions?

If you cannot remember the answers to your security questions, the online username retrieval process cannot be completed. In this situation, you must approach your jurisdictional GST officer with proper identification and business documents. The officer has the authority to reset your credentials after verifying your identity and relationship with the GSTIN. This is a security measure to prevent unauthorized access to GST accounts.

My consultant used their own email and mobile during GST registration. How can I get access?

This is a common issue addressed by CBIC in their June 14, 2018 press release. You need to visit your jurisdictional GST officer with comprehensive documentation including your GST certificate, business registration documents, identity proof, and any agreements with the consultant. The officer will verify your identity as a stakeholder or authorized signatory and update the email and mobile number to your personal contact details. You will then receive new login credentials at your updated email address.

Can I retrieve my username using someone else's mobile number?

No, the SMS-based username and email retrieval services (14409) only work when the SMS is sent from the exact mobile number that is registered in your GST account. If you send the SMS from any other number, you will not receive a response. This is a security feature to prevent unauthorized access to GST credentials.

How do I update my email ID on the GST Portal?

To update your email ID, log into the GST Portal and navigate to Services → Registration → Amendment of Registration Non-core Fields. Go to the Promoter/Partners or Authorized Signatory tab, click Edit next to the relevant person, update the email address, and save. You will need to verify the new email with an OTP. Finally, go to the Verification tab and submit the changes using DSC, E-Signature, or EVC.

Is there a charge for using the SMS service to retrieve GST credentials?

No, there is no charge from the GST Portal for using the SMS service to retrieve your username or email ID. You only pay the standard SMS charges as per your mobile service provider's plan. In most cases, if you have an unlimited SMS plan or sufficient SMS balance, there is effectively no additional cost to use this service.

What is a Provisional ID and where can I find it?

A Provisional ID is a temporary identification number that was issued to taxpayers who migrated from the old VAT system to GST in 2017. It was sent via email and SMS during the initial GST registration process. If you registered for GST after 2017, you likely did not receive a Provisional ID. In the "Forgot Username" process, if the system asks for a Provisional ID and you don't have it, you can enter your GSTIN instead. Check your old emails from 2017 with subject lines related to GST registration to find your Provisional ID if needed.

How many attempts do I have to answer the security questions correctly?

The GST Portal typically allows 3-5 attempts to answer security questions correctly before temporarily locking the account or requiring additional verification. The exact number of attempts may vary. If you exhaust all attempts without success, you will need to wait for a cooling-off period (usually 24 hours) or contact your jurisdictional GST officer for assistance in resetting your credentials.

Can I have multiple usernames for the same GSTIN?

No, each GSTIN has only one primary username associated with it. However, you can have multiple authorized signatories for a single GSTIN, and each authorized signatory can have their own login credentials. This allows different people in your organization to access the GST Portal with appropriate permissions. To add authorized signatories, use the Amendment of Registration feature on the portal.

What documents do I need to carry when visiting the jurisdictional GST officer?

When visiting your jurisdictional GST officer for credential recovery, carry the following documents: Original GST Registration Certificate, government-issued photo ID (Aadhaar, PAN, passport, voter ID), business registration documents (partnership deed, MOA/AOA, shop license), proof of business address (electricity bill, rent agreement), authorization letter if you are a representative, recent passport-size photographs, and any documents establishing your relationship with the GSTIN. Carrying original documents along with photocopies is recommended.

How long does it take for the jurisdictional officer to update my contact details?

The time taken by a jurisdictional officer to update your contact details varies depending on their workload and the completeness of your documentation. Typically, if all documents are in order and verification is straightforward, the process can be completed in 2-5 business days. However, in some cases, it may take up to 7-10 business days. Plan accordingly if you have urgent filing deadlines and need to regain access to your GST Portal account.

Can I retrieve my password using the same SMS method?

No, the SMS service to 14409 only works for retrieving your registered email ID and username. For password reset, you must use the "Forgot Password" option on the GST Portal. After clicking "Forgot Password," enter your username, verify with OTP sent to your registered mobile and email, and then set a new password. The password cannot be retrieved (it is encrypted in the system) but can only be reset.

What is the validity period of the OTP received for username retrieval?

The OTP received for username retrieval on the GST Portal is typically valid for 10 minutes from the time it is generated. If you do not enter the OTP within this timeframe, it will expire and you will need to request a new OTP by clicking the "Resend OTP" button. For security reasons, do not share your OTP with anyone and enter it as soon as you receive it.

Will I receive any confirmation after successfully updating my email and mobile number?

Yes, after successfully submitting the amendment for updating your email and mobile number, you will receive an acknowledgment within 15 minutes. The acknowledgment is sent to both your old and new contact details (email and mobile). You will also receive an Application Reference Number (ARN) which you can use to track the status of your amendment on the GST Portal under Services → Returns → Track Return Status.

Conclusion: Maintaining Secure and Accessible GST Portal Credentials

Retrieving your GST Portal email ID and username is a straightforward process when you have access to your registered mobile number and know the proper procedures. Whether you choose the quick SMS method to 14409, the detailed portal-based recovery process, or seek assistance from your jurisdictional officer, multiple pathways exist to regain access to your GST account.

The key to avoiding credential recovery issues in the future is proactive management. Always use your own or your business's official contact details during GST registration, never allowing consultants to use their personal information. Maintain a secure record of your username, registered email ID, and security question answers in a safe location. Update your contact details promptly if your mobile number or email address changes. Implement strong password practices and consider using a password manager for secure credential storage.

Remember that your GST Portal access is critical for compliance. With penalties of ₹50 per day for late filing and potential issues with input tax credit claims, maintaining uninterrupted portal access is not just a convenience but a business necessity. By following the guidelines in this comprehensive guide, you can quickly resolve access issues and ensure smooth GST compliance throughout 2025 and beyond.

Final Tip: Bookmark the GST Portal (www.gst.gov.in) and save the GST Helpdesk number (1800-103-4786) in your phone. Proactive preparation today prevents compliance complications tomorrow.