Goods and Services Tax (GST) has become the backbone of India’s indirect tax system, and registering under GST is essential for businesses that meet the required turnover threshold or want to operate with enhanced credibility. If you are a business owner in Chennai—whether a startup, trader, consultant, or manufacturer—understanding the GST registration process can save you time, effort, and compliance headaches. This step-by-step guide walks you through everything you need to know about GST registration in Chennai.
Understand Who Needs GST Registration
Before beginning, confirm whether your business falls under the mandatory registration criteria. You must register if:
- Your business turnover exceeds ₹40 lakh for goods or ₹20 lakh for services
- You engage in interstate supply
- You run an e-commerce business
- You are involved in import/export of goods or services
- You operate as an Input Service Distributor (ISD)
- You are required to pay tax under reverse charge
Keep the Required Documents Ready
Having proper documentation speeds up your GST registration. Typically, you will need:
- PAN card of the applicant or business
- Aadhaar card
- Proof of business registration (Partnership deed, COI, etc.)
- Address proof of business location (rental agreement, EB card, property tax receipt)
- Bank account details (cancelled cheque or bank statement)
- Photographs of the proprietor/partners/directors
- Authorization letter for authorized signatory (if applicable)
Create an Account on the GST Portal
- Go to ‘Services → Registration → New Registration’
- Enter your PAN, mobile number, and email ID
- Enter the OTP sent to your mobile and email
- After successful verification, you will receive a Temporary Reference Number (TRN)
The TRN allows you to continue the application even if you pause midway.
Fill Out the GST Application Form (Part B)
Using your TRN, log in again and proceed with Part B of the application. Here, you will need to fill:
- Business details
- Promoter/partner details
- Principal place of business
- Additional places (if any)
- Goods and services offered (HSN/SAC codes)
- Bank account details
- Required document uploads
Verification and Submission
After completing the form:
- Verify the details using Digital Signature Certificate (DSC) for companies/LLPs, or
GST Officer Verification
A GST officer reviews your application. Usually, approval is granted within 3–7 working days.
In some cases, the officer might request additional documents or clarifications.
Respond promptly to avoid delays.
Once approved, you will receive:
- GSTIN (Goods and Services Tax Identification Number)
- GST Registration Certificate
Post-Registration Compliance
Registration is just the first step. Chennai businesses must regularly meet compliance standards such as:
- Filing monthly/quarterly GST returns (GSTR-1, GSTR-3B)
- Maintaining purchase and sales records
- Generating e-invoices (if applicable)
- Paying taxes on time
Final Thoughts
GST registration in Chennai is a straightforward digital process, but accuracy and correct documentation are essential.

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