This is the section most guides skip – and it is the most useful one if you are filing yourself. Rejection rates in some states hit 41–75% for self-filed applications (CBIC 2025 data). Here are the real reasons applications get rejected, and how to avoid each one.
1. Document Mismatch
The name on your PAN, Aadhaar, bank account, and address proof must be identical. Even a minor spelling difference – “Sharma” vs “Sharmaa” – triggers a REG-03 notice or outright rejection.
Fix: Cross-check all documents before uploading. If names differ, correct them at the source first (Aadhaar update, bank KYC update).
2. Invalid or Insufficient Address Proof
A residential electricity bill for a business address is a common rejection trigger. If you operate from rented premises, you need three documents: rent/lease agreement + electricity bill + NOC from the property owner.
Fix: Ensure the rent agreement is registered (or notarised), the electricity bill is recent (within 3 months), and the NOC is on the property owner’s letterhead with their signature and ID proof.
3. Aadhaar Not Linked to Mobile
The GST portal requires Aadhaar-based OTP authentication (e-KYC). If your Aadhaar is not linked to your current mobile number, the e-sign step fails.
Fix: Update your Aadhaar-mobile linkage at any Aadhaar enrolment centre before filing.
4. Wrong Business Category Selected
Selecting “Goods” when you provide services (or vice versa) leads to incorrect HSN/SAC code entries and officer queries.
Fix: Confirm your primary activity – if you sell products, select goods; if you provide services, select services. Mixed businesses should select the dominant category and add the secondary one.
5. Failure to Respond to REG-03 Notice
The GST officer has 3 working days to raise a query. You have 7 working days to respond. Missing this window results in automatic rejection – no extension is granted.
Fix: Monitor your registered email and mobile daily after submission. If you miss the window, you must file a fresh application.
6. Incorrect or Missing Bank Details
Bank account details (account number, IFSC, account holder name) must match the entity applying. A personal account submitted for a company registration – or vice versa – causes rejection.
Fix: Submit a cancelled cheque or bank statement that clearly shows the account holder name, account number, and IFSC.
7. Multiple Applications for the Same PAN
Submitting duplicate applications for the same business under the same PAN (a common mistake when the first application seems “stuck”) triggers a system flag.
Fix: Track your ARN status before filing a new application. If genuinely rejected, wait for the formal rejection order before re-applying.
8. Physical Verification Failure
Under CBIC Instruction No. 03/2025, officers can initiate physical verification of the business premises. If the address provided does not match the actual location, or if no one is present during verification, the application is rejected.
Fix: Ensure someone is available at the registered address during business hours. If using a virtual office, confirm the provider can handle verification visits.
Our track record: SetupFiling’s CA team reviews every document before submission – catching mismatches, missing NOCs, and incorrect categories before they reach the GST officer. That is how we maintain a near-zero rejection rate across 50,000+ registrations.