Complete guide to GST registration, compliance, and filing for startups.
GST Registration for Startups
GST (Goods and Services Tax) registration is mandatory for most startups in India once they cross the threshold limits. This guide covers when you need GST, how to register, and how to stay compliant.
When is GST Registration Mandatory?
You must register for GST if:
Aggregate turnover exceeds INR 20 lakh (INR 10 lakh for special category states)
You make inter-state supplies of goods or services (no threshold limit)
You sell through e-commerce platforms like Amazon, Flipkart, Swiggy
You are required to deduct TDS/TCS under GST
You are an input service distributor
You supply goods/services on behalf of other registered taxable persons as an agentImportant for SaaS startups: If you sell to customers in other states (which is almost always the case for digital products), you need GST registration regardless of turnover.
Types of GST Registration
Regular: Standard registration for most businesses
Composition Scheme: Simplified scheme for businesses with turnover up to INR 1.5 crore (limited applicability for service providers)
Casual Taxable Person: For occasional inter-state supplies
Non-Resident Taxable Person: For foreign entities supplying in IndiaStep-by-Step Registration Process
#### Step 1: Gather Documents
PAN card of the company
Certificate of Incorporation
Address proof of principal place of business (rent agreement, utility bill, or property tax receipt)
Bank account statement or cancelled cheque
Authorization letter and DSC of authorized signatory
Aadhaar of all directors
Photographs of all directors#### Step 2: Apply Online
Visit [gst.gov.in](https://gst.gov.in)
Go to Services > Registration > New Registration
Fill Part A: Enter PAN, email, and mobile number
Verify via OTP on email and mobile
Receive a Temporary Reference Number (TRN)
Fill Part B using TRN: Complete all business details
Upload required documents
Submit using DSC or EVC (Electronic Verification Code)#### Step 3: Verification
The GST officer may request additional documents via FORM GST REG-03
Respond within 7 working days via FORM GST REG-04
If everything is in order, GSTIN is issued within 7 working daysGST Rates for Common Startup Services
| Service Type | GST Rate |
|-------------|----------|
| SaaS / Software services | 18% |
| IT services | 18% |
| Consulting services | 18% |
| E-commerce | 18% |
| Advertising services | 18% |
| Restaurant services (without AC) | 5% (no ITC) |
| Restaurant services (with AC) | 5% (no ITC) |
| Training and coaching | 18% |
Monthly and Annual Compliance
Monthly/Quarterly Returns:
GSTR-1: Outward supplies (sales) - Due by 11th of next month (monthly) or 13th of month following quarter
GSTR-3B: Summary return with tax payment - Due by 20th of next month (monthly) or 22nd/24th of month following quarterAnnual Returns:
GSTR-9: Annual return - Due by December 31st of next financial year
GSTR-9C: Reconciliation statement (if turnover exceeds INR 5 crore) - Due by December 31stInput Tax Credit (ITC)
One of the biggest advantages of GST is Input Tax Credit. You can claim credit for GST paid on business purchases against your GST liability on sales.
Eligible for ITC:
Office rent
Software subscriptions
Professional services (legal, accounting)
Office supplies and equipment
Cloud hosting services (AWS, GCP, Azure)Not eligible for ITC:
Food and beverages (unless in hospitality business)
Health insurance (unless mandated by government)
Membership of clubs or fitness centers
Personal vehiclesTips for Startups
Register for GST before making your first inter-state sale
Use GST-compliant accounting software like Zoho Books, ClearTax, or Tally
Always verify your vendor's GSTIN before claiming ITC
File returns on time even if there are zero transactions (nil returns)
Maintain proper records of all invoices for at least 6 years
Consider quarterly filing under QRMP scheme if turnover is under INR 5 crore