Applied for GST Registration but seeing the "ARN Not Found" error while checking your application status? You're not alone.
Many taxpayers encounter this issue after submitting their GST registration application or while tracking the Application Reference Number (ARN) on the GST Portal. In most cases, the problem is temporary and can be resolved by following a few simple steps.
Updated with the latest 2026 GST Council guidelines on biometric authentication and mandatory business premises geotagging.
What is an ARN in GST?
ARN (Application Reference Number) is a unique reference number generated by the GST Portal after successfully submitting a GST application.
The ARN allows applicants to:
Once your application is successfully submitted and verified, the GST system generates an ARN and sends it via SMS and email.
What Does "ARN Not Found" Mean?
The "ARN Not Found" message means that the GST Portal cannot locate the Application Reference Number entered by the user.
This doesn't always mean your application has been rejected. In many cases, the ARN may not yet be generated, entered incorrectly, or the GST Portal may still be processing your application.
Top Reasons Why GST ARN Is Not Found
1. Incorrect ARN Entered
The most common reason is entering the wrong ARN. Always check for:
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Uppercase and lowercase letters
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Numbers mixed with characters
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Extra spaces at the beginning or end
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Missing characters
💡 Tip: Always copy the ARN directly from the GST registration email or SMS instead of typing it manually.
2. ARN Not Generated Yet
After submitting your GST application, the ARN may take some time to appear. Sometimes applicants check the status immediately after submission, but the system is still processing the data.
3. GST Portal Processing Delay
During heavy traffic or portal maintenance, ARN generation may be delayed. This is common during:
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GST return due dates
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Financial year-end
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Major system maintenance updates
4. Application Not Successfully Submitted
If the application wasn't submitted successfully or the verification failed, the ARN may not be generated. Always verify whether you received the official application submission confirmation email.
5. Using TRN Instead of ARN
Many applicants confuse the Temporary Reference Number (TRN) with the Application Reference Number (ARN). A TRN cannot be used to track the final application status.
6. Browser Cache or Technical Issue
Sometimes the GST Portal may display temporary errors because of browser cache or cookies. Try using Incognito Mode or switching your browser.
7. Failed Geotagging or Address Validation Nowadays, geotagging your business location is highly critical during the registration process. If there is a mismatch or glitch while capturing the latitude and longitude of your principal place of business, the application may hit a backend error, delaying the activation of your ARN.
8. Government Challan or Payment Lag If your registration application involves any past penalty or composition deposit and the banking channel takes time to clear the challan, the GSTN servers will hold the ARN generation until the payment status shows "Success."
How to Fix the ARN Not Found Error
Follow these troubleshooting steps to resolve the error:
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Verify the ARN carefully against the acknowledgement receipt.
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Check your registered email and mobile for the official ARN confirmation text.
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Ensure you are using the ARN and not the TRN.
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Wait for 24–48 hours if the application was submitted very recently.
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Clear your browser cache or try tracking in a different browser.
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Check the GST Portal announcements to see if the site is undergoing scheduled maintenance.
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If the issue continues beyond 48 hours, contact the GST Helpdesk with your application details.
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Use the Grievance Redressal Portal: Instead of just waiting on calls, log an official ticket directly at the GST Self-Service Portal (
selfservice.gstsystem.in) with screenshots of your TRN dashboard showing the "Submitted" status.
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Call the Official National Toll-Free Number: Dial 1800-103-4786 from your registered mobile number for immediate telephonic support regarding stuck ARNs.
How to Check GST ARN Status Online
Follow these exact steps to track your application status correctly:
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Visit the official GST Portal (www.gst.gov.in).
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Go to the menu: Services ➔ Registration ➔ Track Application Status.
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Select the ARN radio button option.
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Enter your 15-digit ARN in the search field.
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Complete the CAPTCHA image code accurately.
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Click the Search button.
The portal will instantly display your current application status on the screen.
Difference Between TRN and ARN
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Features
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TRN
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ARN
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Full Form
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Temporary Reference Number
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Application Reference Number
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Generation
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Generated before application submission
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Generated after successful submission
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Primary Use
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Used to log in and complete the application
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Used to track the application status
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Validity
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Valid for a limited time (usually 15 days)
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Valid until the application is fully processed
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Common GST Status Messages
If your ARN is found, it will show one of the following status messages:
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Status Message
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Actual Meaning
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Pending for Processing
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The GST department is currently reviewing your application.
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Pending for Clarification
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The officer requires additional documents or clarification from your end.
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Pending for Physical Verification
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The GST officer has initiated a physical site visit to verify your business premises before approving the registration.
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Approved
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Your GST registration has been successfully approved.
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Rejected
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The application has been rejected due to discrepancies.
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ARN Not Found
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The system cannot locate the entered reference number in the database.
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Tips to Avoid ARN Issues
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Save the ARN immediately on your device after submission.
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Always download the acknowledgement receipt (Form GST REG-02).
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Use your primary registered email for all future references.
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Never confuse the TRN with the ARN.
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Keep screenshots of important application submission pages.
What If ARN Is Still Not Found After 48 Hours?
If your ARN is still not visible after 48 hours, take these immediate steps:
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Re-login using your TRN and verify if the application shows as "Submitted".
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Check your Spam/Junk email folder for the confirmation mail.
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Confirm that the registered mobile number is active and receiving network alerts.
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If everything seems correct but the error persists, log a ticket or Contact the GST Helpdesk.
Need Help With GST Registration?
If you're unable to track your GST application or facing issues such as ARN Not Found, professional assistance can help resolve the issue quickly.
FreeGST provides expert support for:
Conclusion
The ARN Not Found error on the GST Portal is usually caused by a simple typographical error, delayed system processing, portal maintenance, or confusion between the TRN and ARN.
In most cases, the issue gets resolved automatically by verifying the characters, clearing browser cache, and waiting for system processing. If the problem continues for more than 48 hours, it is highly advisable to contact the GST Helpdesk or seek professional GST assistance at FreeGST.co to avoid any unexpected compliance delays.
Frequently Asked Questions
Why is my GST ARN not found?
It may be due to an incorrect character entry, system processing lag, portal maintenance, or using a TRN instead of an ARN.
Can biometric-based Aadhaar Authentication delay my GST ARN?
Yes. In several states, biometric or facial verification has become mandatory. If your Aadhaar authentication fails or remains pending from your side, the GST system will not process the final submission, causing the "ARN Not Found" error when you try to track it.
How long does it take for an ARN to be generated?
Generally, the ARN is generated immediately after successful submission, but system bottlenecks can sometimes delay it by 24–48 hours.
Can I track my GST application using TRN?
No. TRN is only used to edit or fill the application. Only the ARN can be used to track the post-submission status.
What should I do if my ARN is not generated?
Log back into the portal using your TRN to confirm if the application form was successfully completed and submitted.
Can GST registration be approved without ARN?
No. Every successfully submitted GST application must pass through the ARN generation phase before processing.
Is ARN the same as GSTIN?
No. ARN is a temporary tracking number, while GSTIN is the final 15-digit Goods and Services Tax Identification Number issued after approval.
References
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GST Official Portal
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Central Board of Indirect Taxes & Customs (CBIC)
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GST Council India
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Ministry of Finance, Government of India
Author Note
Kanan Gautam is a GST and business compliance content specialist associated with FreeGST.co. She regularly researches GST registration, GST amendments, GST returns, e-invoicing, MSME compliance, and regulatory updates issued by GSTN, CBIC, GST Council, and the Ministry of Finance. Her content focuses on simplifying complex tax and compliance topics for business owners, startups, professionals, and MSMEs across India.