GST Registration: Who Needs It, Documents & Process (2026)
Complete guide to GST registration — eligibility thresholds, documents required, step-by-step process, composition vs regular, and penalties for non-registration.
Reviewed by Vikram Mehta
Chartered Accountant · ICAI FRN 142087W
GST registration is the first step to operating a compliant business in India. Whether you're a freelancer crossing the threshold, an e-commerce seller, or starting an inter-state business — understanding when registration is mandatory, the documents needed, and the process saves you time and penalties.
Who Must Register for GST?
Registration is mandatory if any of these apply to your business:
- Aggregate turnover exceeds ₹40 lakh (₹20 lakh for special category states, ₹10 lakh for Mizoram/Meghalaya/others)
- For services: threshold is ₹20 lakh (₹10 lakh for special category states)
- Making inter-state taxable supplies (regardless of turnover)
- E-commerce operators or sellers on e-commerce platforms
- Persons required to pay tax under reverse charge
- Casual taxable persons or non-resident taxable persons
- Input Service Distributors (ISD)
- Agents of a supplier or TDS/TCS deductors
Documents Required
Keep these documents ready before starting your application. Missing documents are the #1 reason for delayed approvals.
| Document Type | For Proprietorship | For Company/LLP |
|---|---|---|
| PAN | Individual PAN | Company/LLP PAN |
| Aadhaar | Proprietor Aadhaar | Directors' Aadhaar |
| Photo | Proprietor photo | Directors' photos |
| Address proof | Electricity bill / rent agreement | Same + NOC from owner |
| Bank statement | First page or cancelled cheque | Same |
| Constitution document | Not required | Certificate of Incorporation / Partnership Deed |
| Authorization letter | Not required | Board resolution / authorization |
Step-by-Step Registration Process
The entire process is online. No physical visits required if you opt for Aadhaar authentication.
Visit the GST portal
Go to gst.gov.in → Services → Registration → New Registration
Complete Part A
Enter PAN, mobile number, email → Verify with OTPs → Generate your Temporary Reference Number (TRN)
Complete Part B
Login with TRN → Fill business details, promoter information, and authorized signatory
Upload address proof
Provide electricity bill + rent agreement (if rented) for your principal place of business
Add branches (if any)
Declare additional places of business like warehouses or branch offices
Select HSN/SAC codes
Choose the top 5 goods or services you supply — these can be updated later
Bank details
Can be added within 45 days of registration. Not mandatory at the time of application.
Verify & submit
Submit with Aadhaar OTP, Digital Signature (DSC), or Electronic Verification Code (EVC)
GSTIN issued
Typically within 3–7 working days. Faster with Aadhaar authentication enabled.
Skip the manual setup — start invoicing in 2 minutes
1010 auto-configures your HSN codes, invoice format, and filing calendar once you enter your GSTIN. No spreadsheets needed.
Try 1010 FreeVoluntary Registration
Even if your turnover is below the threshold, you can register voluntarily. This is often a smart move for growth-stage businesses.
Key benefits of voluntary registration:
- Claim ITC on all purchases — reduces your effective cost of goods/services
- Sell on e-commerce — Amazon and Flipkart require GSTIN for all sellers
- Inter-state sales without restrictions
- Better credibility with B2B customers who need GST invoices for their ITC
Composition Scheme vs Regular Registration
Choosing the right scheme at registration time impacts your tax rate, compliance burden, and business flexibility. Here's a comparison:
| Parameter | Regular | Composition |
|---|---|---|
| Eligibility | No limit | Turnover up to ₹1.5 Cr (₹75 lakh for services) |
| Tax rate | Normal rates (5/12/18/28%) | 1–6% flat (no ITC) |
| ITC claim | Yes | No |
| Inter-state sales | Allowed | Not allowed |
| E-commerce sales | Allowed | Not allowed |
| Return frequency | Monthly / Quarterly | Quarterly (CMP-08) |
| Invoice type | Tax invoice (with GST breakup) | Bill of supply (no tax breakup) |
After Registration: First Steps
Registration is just the beginning. Here's what you need to do immediately:
- Download your GST certificate from the portal
- Display the certificate prominently at your place of business
- Set up your invoicing system with proper format (sequential numbers, HSN codes)
- Add bank account details within 45 days
- Start filing returns from the effective date of registration
- Understand your filing calendar — GSTR-1 by 11th, GSTR-3B by 20th
Penalties for Non-Registration
Section 122: ₹10,000 or tax evaded (whichever is higher) for not obtaining registration when required.
Additionally, all tax due from the date registration was required, plus 18% interest per annum.
Your buyers also lose ITC for the entire unregistered period — damaging your business relationships.
Stay ahead of compliance deadlines
1010 auto-prepares your GSTR-1 and GSTR-3B from your invoices and reminds you 5 days before every due date. No missed deadlines, no penalties.
Start Free TrialFrequently Asked Questions
How long does GST registration take?
3–7 working days with Aadhaar authentication. Without Aadhaar, physical verification may take up to 30 days.
Is GST registration free?
Yes, registration on the GST portal is completely free. No government fees. Beware of agents charging excessively — the process is straightforward and can be done self-service.
Can I register for GST without a physical office?
You need a registered address (can be residential). Electricity bill or property tax receipt in your name, or a rent agreement + NOC from the owner is sufficient proof.
What is the turnover threshold for GST registration?
₹40 lakh for goods, ₹20 lakh for services (₹20L/₹10L respectively for special category states like NE states, J&K, Himachal, Uttarakhand).
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