How to Check GST Number: A Comprehensive Guide
Verifying a Goods and Services Tax (GST) number is essential for ensuring the legitimacy of a business, complying with tax regulations, and avoiding fraud. This guide covers multiple methods to check a GST number, validate its authenticity, and track related details like MSME registration and ARN status.
1. How to Check if a GST Number is Valid
A valid GST number (GSTIN) follows a specific structure. Here’s how to verify it:
Structure of a GSTIN
- 15 Digits: Format:
XXAAAAA9999XZX.- First 2 digits: State code (e.g., 27 for Maharashtra).
- Next 10 digits: PAN of the business.
- 13th digit: Entity code (e.g., 1 for sole proprietorship).
- 14th digit: Checksum digit (calculated algorithmically).
- 15th digit: Default character (Z or alphabet).
Manual Validation Steps
- Confirm the first two digits match the state code (e.g., 09 for Uttar Pradesh).
- Verify the next 10 digits correspond to a valid PAN.
- Validate the 14th digit (checksum) using a GST checksum calculator.
Online Verification via GST Portal
- Visit the GST Portal.
- Navigate to Search Taxpayer > Search by GSTIN/UIN.
- Enter the GST number and captcha.
- Click Search. Valid GSTINs will display business details (name, state, etc.).
GST Caclulator Online
2. How to Check if a GST Number is Active
An active GSTIN means the business is registered and compliant. To verify:
- Go to the GST Portal.
- Under Search Taxpayer, select Search by GSTIN/UIN.
- Enter the GST number and solve the captcha.
- Click Search.
- Active Status: Shows registration details and “Active” status.
- Cancelled/Suspended: Displays “Cancelled” or “Inactive”.
3. How to Check MSME Registration by GST Number
While MSME (Udyam) registration isn’t directly linked to GSTIN, you can use the PAN embedded in the GSTIN to check:
- Extract the PAN (digits 3–12 of the GSTIN).
- Visit the Udyam Registration Portal.
- Click Verify Udyam Registration Number.
- Enter the PAN or Udyam Registration Number (UAN).
- Submit to view MSME registration details (if linked to the PAN).
Note: Not all GST-registered businesses are MSMEs. Direct verification may require the UAN.
4. How to Check ARN Number in GST Portal
The Application Reference Number (ARN) tracks GST registration/amendment applications. Follow these steps:
- Log in to the GST Portal.
- Go to Services > Track Application Status.
- Select ARN from the dropdown.
- Enter the 15-digit ARN and captcha.
- Click Track Status.
- Approved: Application processed.
- Pending: Under review.
- Rejected: Check remarks for issues.
Key Tips
- Cross-Check Details: Ensure business names and addresses match the GSTIN.
- Regular Updates: GST portals update statuses periodically; check back if unsure.
- ARN Safeguarding: Save ARN for future tracking until registration completes.
By following these steps, businesses and individuals can validate GST numbers, confirm active status, and link related registrations efficiently. Always use official portals for accurate results.
