📌 Key Takeaway: Comprehensive guide covering GST registration rules, turnover thresholds (₹40L/₹20L), mandatory document checklist for Sole Proprietors, Partnerships, and Pvt Ltd companies, and step-by-step portal filing.
Understanding the GST Framework in India
The Goods and Services Tax (GST) is a unified, destination-based indirect tax levied on the manufacture, sale, and consumption of goods and services across India. Under the CGST Act, 2017, obtaining a Goods and Services Tax Identification Number (GSTIN) is not only a statutory legal requirement for businesses crossing specific turnover thresholds but also a vital credential for building commercial credibility, unlocking business Current Accounts, and claiming Input Tax Credit (ITC).
Turnover Thresholds for Mandatory GST Registration
The statutory limits that mandate GST registration depend on whether you supply goods or provide services:
- For Goods Suppliers (Normal Category States): Mandatory if aggregate annual turnover exceeds ₹40 Lakhs.
- For Service Providers (Normal Category States): Mandatory if aggregate annual turnover exceeds ₹20 Lakhs.
- Special Category States (North-Eastern & Hill States): Threshold is ₹20 Lakhs for goods and ₹10 Lakhs for services.
- Mandatory Registration Regardless of Turnover: Compulsory for e-commerce sellers (Amazon, Flipkart, Meesho), inter-state goods suppliers, casual taxable persons, and businesses paying tax under Reverse Charge Mechanism (RCM).
Comprehensive Document Checklist by Business Entity
Before initiating the application on the GST portal, prepare self-attested, high-resolution scanned copies of the following documents:
- Sole Proprietorship: PAN Card and Aadhaar Card of the proprietor, passport-size photograph, cancelled bank cheque or bank statement with IFSC, electricity bill of premises, and notarized Rent Agreement with Landlord NOC.
- Partnership Firm / LLP: Partnership Deed or LLP Agreement, Certificate of Incorporation, PAN card of firm/LLP, PAN & Aadhaar of all partners, Board Resolution authorizing one partner, and registered address utility bill.
- Private Limited Company: Certificate of Incorporation (COI), Memorandum & Articles of Association (MOA & AOA), Company PAN, Board Resolution appointing Authorized Signatory, PAN & Aadhaar of all directors, and premise ownership proofs.
Step-by-Step Application Workflow on the GST Portal
The online application process consists of two primary stages:
- Part A (TRN Generation): Visit gst.gov.in > Services > Registration > New Registration. Enter legal business name, PAN, email, and mobile number. Validate with OTP to receive a 15-digit Temporary Reference Number (TRN).
- Part B (Application Submission): Log in using the TRN within 15 days. Fill in 10 detailed sections including Business Details, Promoters/Partners, Principal Place of Business, HSN/SAC Goods & Services codes, and Bank Account details.
- Aadhaar Authentication & ARN: Complete OTP-based Aadhaar biometric authentication. Upon successful validation, the Application Reference Number (ARN) is generated within 15 minutes.
Processing Timelines and Officer Query (Form GST REG-03)
If Aadhaar authentication succeeds, GSTIN is typically approved within 3 to 7 working days without physical site verification. If the jurisdictional tax officer raises a clarification notice (Form GST REG-03), you must file a formal response (Form GST REG-04) within 7 working days with additional supporting evidence.