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GST Registration in India: The complete 2026 guide
Thresholds, documents, types of registration and common mistakes to avoid — explained step-by-step.
May 6, 2026 10 min readBy Megha Pillai
GST registration is mandatory once your turnover crosses ₹40L (goods) or ₹20L (services), and from day one for inter-state sale of goods or e-commerce selling.
### Documents
- PAN of business
- Aadhaar of authorised signatory
- Address proof of place of business
- Cancelled cheque
### Application
File via the GST portal (gst.gov.in) or with our help to avoid rejection. ARN is generated within 24 hours; certificate within 3-5 working days.
### Mistakes to avoid
1. Using residential address without NOC.
2. Choosing wrong principal place of business.
3. Missing electronic verification (DSC for companies).