| 1 | PAN of the business / proprietor | Self-attested Copy | Primary identifier; GST registration is PAN-based and the GSTIN incorporates the PAN |
| 2 | Aadhaar of proprietor / partners / directors | Self-attested Copy | Required for Aadhaar authentication of authorised signatories; speeds up approval |
| 3 | Proof of business address (electricity bill / rent agreement / property tax receipt) | Self-attested Copy | Establishes the principal place of business for GST registration; must not be older than 2 months |
| 4 | Cancelled cheque or bank statement with account details | Soft copy (PDF) | Bank account details (IFSC, account number) required to be registered with GST for refund credits |
| 5 | Passport-size photograph of proprietor / authorised signatory | Soft copy (PDF) | Photograph of the primary contact person to be uploaded on the GST portal |
| 6 | Constitution documents (Partnership Deed / MOA & AOA / LLP Agreement)(optional)Required for non-proprietorship entities | Self-attested Copy | Establishes the legal constitution of the entity for partnership firms, companies, and LLPs |
| 7 | Digital Signature Certificate (DSC) — Class 3(optional)Mandatory for companies and LLPs; optional for proprietors | Original | Required to digitally sign the application for companies and LLPs; individuals and proprietors can use Aadhaar OTP instead |
| 8 | Board resolution / authorisation letter(optional)Required for companies, LLPs, and firms where the applicant is not the sole owner | Original | Authorisation for the person signing the GST application on behalf of a company, LLP, or firm |