The ARN Number in GST (Application Reference Number) is a unique 15-digit code generated on the GST Portal immediately after you submit a new GST registration application. It is the temporary tracking ID given to you before the actual GSTIN is allocated.
When you ask “what is ARN Number in GST,” you are likely waiting for your GST registration approval. This number is proof that you have successfully submitted your documents and the application is pending with the tax officer.
What Does ARN Number GST Mean?
It stands for Application Reference Number. Unlike the GSTIN which is permanent, the ARN is valid only during the processing phase of the application.
The status of an ARN can be:
- Pending for Processing: Application submitted successfully.
- Site Verification Assigned: Officer may visit your shop.
- Clarification Pending: Officer needs more documents.
- Approved: GSTIN Generated.
Why ARN Number is Important
- Status Tracking: You cannot know if your application is rejected or approved without this number.
- Replying to Notices: If the officer raises a query (Notice for Clarification), you must login using the TRN/ARN to reply.
- Proof of Date: It establishes the date of application, which helps in determining the effective date of registration.
Where is ARN Number Used?
- Track Application Status: The primary use case.
- Clarification Filing: Used to upload rent agreements or NOCs if asked.
- Download Certificate: Once approved, you use the login credentials sent to you to download the certificate.
How to Find or Check ARN Number
Upon Submission:
After verifying the application with EVC/DSC, the success message displays the ARN. It is also sent to your registered email and mobile.
To Track Status:
1. Visit GST Portal.
2. Go to “Services” > “Registration” > “Track Application Status”.
3. Enter the ARN.
4. The timeline will show the current stage.
Example of ARN Number
Format: AA + State Code + Month + Year + Unique ID + Checksum
Example: AA2705190000001 (Starts with ‘AA’)
Common Problems or Errors
- ARN vs TRN: TRN (Temporary Reference Number) is generated when you start filling the form. ARN is generated when you submit the form. Don’t confuse the two.
- Clarification Delay: If status says “Clarification Pending,” you have 7 days to reply. If you miss this window, the ARN is cancelled.
Important Things to Remember
- Keep the ARN safe until you get the GSTIN.
- Check your email daily for alerts linked to this ARN.
- Once GSTIN is generated, the ARN becomes obsolete.
- To know the next step, read what is GSTIN Number.
- If you are an exporter, check what is LUT in GST.
Frequently Asked Questions
How long is ARN valid?
The ARN is valid until the application is processed (Approved or Rejected). If a query is raised, you must respond within 7 working days.
What is the difference between ARN and TRN?
TRN is a temporary 15-digit number to save a draft application. ARN is the final acknowledgement number generated after you submit the application.
Can I start business with ARN number?
No, ARN is just a receipt. You must wait for the GSTIN (Registration Certificate) to legally charge tax or issue GST invoices.
What does ‘Site Verification Assigned’ mean for ARN?
It means the tax officer has decided to physically visit your business premises to verify if the address is genuine before approving the GSTIN.
How do I download the GST certificate using ARN?
You cannot download it directly with ARN. Once approved, you will get a User ID and Password via email. Login with those credentials to download the certificate.