Businesses in Kolkata that cross the GST turnover threshold or make inter-state or e-commerce supplies must register under GST and obtain a GSTIN. Since Kolkata is in West Bengal, its GSTINs begin with the state code 19.
This guide covers who needs GST registration in Kolkata, the documents required, and the step-by-step process.
What is GST Registration in Kolkata?
GST registration in Kolkata is done online on the central GST portal — there is no separate Kolkata office you must visit. The registered GSTIN is tied to your principal place of business in the city.
Once registered, a Kolkata-based business can collect GST, claim input tax credit on purchases, and file monthly or quarterly returns.
Who needs GST registration in Kolkata
- Traders and manufacturers in Kolkata above the turnover threshold (₹40 lakh for goods, ₹20 lakh for services in most states)
- Businesses making inter-state supplies
- E-commerce sellers shipping from Kolkata
- Anyone liable under reverse charge, and voluntary registrants seeking input tax credit
Documents required
- PAN of the business and owners
- Aadhaar of the authorised signatory
- Address proof of the place of business in Kolkata
- Bank account proof
- Photographs and constitution documents
Step-by-step process
- Generate a TRN. File Part A of Form REG-01 with PAN, mobile and email.
- Complete the application. Fill business, promoter and place-of-business details for your Kolkata address.
- Upload and authenticate. Attach documents and complete Aadhaar authentication.
- Get your GSTIN. Track the ARN; on approval you receive the GSTIN and certificate.
Fees and timeline
Typically approved within 7 working days with Aadhaar authentication.
More for Kolkata and West Bengal
Find related services in Kolkata, the statewide guide for West Bengal, and national how-to guides.
- GST registration: complete guide
- How to file GSTR-3B
- Input Tax Credit (ITC) explained
- GST return due dates
Other services in Kolkata:
- Company registration in Kolkata
- ITR filing in Kolkata
- Trademark registration in Kolkata
- Accounting services in Kolkata
Nearby & statewide:
- GST registration in West Bengal
- GST registration in Howrah
- GST registration in Siliguri
- GST registration in Durgapur
Frequently asked questions
Is there a government fee for GST registration in Kolkata?
No. GST registration has no government fee; you only pay professional charges if you use a consultant.
How long does GST registration take in Kolkata?
Around 7 working days with Aadhaar authentication, subject to any verification.