GST Registration in Kolkata

Each new West Bengal registration is allotted either to the State, through the Directorate of Commercial Taxes, West Bengal, or to the Centre, through the Central Tax commissionerates for Kolkata. Under the GST Council Secretariat's Circular No. 01/2017 (20 September 2017), taxpayers with turnover below ₹1.5 crore are divided 90% to the State and 10% to the Centre, and those above it 50:50. The authority you are allotted handles verification, notices and refunds.

Key facts for Kolkata companies

When must a Kolkata business register for GST?

Registration is compulsory once aggregate turnover — counted across India for every registration under the same PAN, including exempt supplies and exports — crosses ₹40 lakh for a supplier of goods only, or ₹20 lakh for a supplier of services (section 22 of the CGST Act). It is needed from the first supply, whatever the turnover, for inter-state supplies of goods, tax payable under reverse charge, casual and non-resident taxable persons, Input Service Distributors (compulsory from 1 April 2025 for offices receiving input-service invoices for branches in other states) and most sellers of goods through e-commerce operators (section 24); inter-state supplies of services alone do not force registration below ₹20 lakh (Notification No. 10/2017-Integrated Tax).

How is the application made and approved?

The application is filed online in Form GST REG-01 after OTP verification of PAN, mobile and e-mail, with the documents and a map pin for the principal place of business. The promoters complete Aadhaar authentication; applications flagged on risk parameters, or without Aadhaar authentication, go through photograph and document verification at a GST Suvidha Kendra (Rule 8(4A)). The officer decides within 7 working days, or 30 days where Aadhaar authentication fails or physical verification is needed (Rules 9 and 25); otherwise the registration is deemed approved. Since 1 November 2025, an applicant whose output tax on supplies to registered persons will not exceed ₹2.5 lakh a month can opt for simplified registration under Rule 14A, granted within 3 working days with Aadhaar authentication compulsory (Notification No. 18/2025-Central Tax).

What changes for a Kolkata trader with a godown in Howrah?

Howrah is in West Bengal, so a godown there is added to the Kolkata GSTIN as an additional place of business rather than registered separately. A godown across the state border, in Jharkhand or Odisha, needs a GSTIN of its own, and stock sent there is an inter-state supply between distinct persons.

Does a Kolkata business selling on e-commerce platforms need GST from the start?

A seller of goods through an e-commerce operator generally has to register from the first supply, but sellers making only intra-state supplies within the threshold are exempt under Notification No. 34/2023-Central Tax, subject to its conditions. Selling to customers in other states through a platform still requires registration.

What Kolkata Businesses Usually Need

Tea and jute trade

Kolkata's tea and jute businesses buy and sell across eastern India and beyond, so most register before their first inter-state consignment. Auction purchases, warehousing in other states and branch transfers each create their own invoicing and e-way bill steps, which are mapped before trading starts.

Financial firms with branches in several states

Kolkata brokers, NBFCs and advisory firms with branches in other eastern states hold a GSTIN in each state where a branch supplies services. Credit on common services bought from outside goes to the branches through an Input Service Distributor registration, while services the head office itself provides are cross-charged; the ₹20 lakh threshold is counted across all registrations under the PAN together.

Shipments through Kolkata port

Exporters shipping through Kolkata who pay IGST at export receive the refund once the shipping bill and export manifest are filed and the invoice details in GSTR-1 match them (Rule 96); a mismatch between the two records is a common reason a refund stops.

After registration, GSTR-1 and GSTR-3B are filed monthly or quarterly under QRMP (up to ₹5 crore of turnover), changes are reported in REG-14 within 15 days, and a cancelled registration can be revoked within 90 days of the order, extendable by up to 180 days (Rule 23).

About V Viswanathan & Associates

Frequently Asked Questions

What is the turnover limit for GST registration in Kolkata?

A West Bengal business supplying only goods must register once aggregate turnover crosses ₹40 lakh in a financial year, and one supplying services once it crosses ₹20 lakh (section 22 of the CGST Act; Notification No. 10/2019-Central Tax). Commodity traders selling to other states must register from the first inter-state supply of goods (section 24).

How long does GST registration take in Kolkata?

The officer must approve the application or raise a query within 7 working days (Rule 9 of the CGST Rules), or within 30 days where Aadhaar authentication is not done or a physical verification is ordered. Applicants opting for the simplified scheme under Rule 14A (output tax up to ₹2.5 lakh a month on supplies to registered persons) are approved within 3 working days, with Aadhaar authentication compulsory.

What documents are needed for GST registration in Kolkata?

PAN of the business; PAN, Aadhaar and photographs of the proprietor, partners or directors; proof of the principal place of business (property tax receipt or electricity bill, or the rent or co-working agreement with the owner's consent and proof); the constitution document; and the authorised signatory's appointment. Bank account details can follow within 30 days of registration (Rule 10A).

Do I need a separate GSTIN for each state?

Yes. A separate GSTIN is needed in every state or union territory from which you make taxable supplies (section 25(1)); further offices or warehouses within West Bengal are added to the same GSTIN as additional places of business.

Is there professional tax for a Kolkata business?

Yes. ₹2,500 a year for a company; salary slabs revised from 1 October 2026.

Can a Kolkata freelancer register for GST voluntarily below ₹20 lakh?

Yes. Voluntary registration is allowed, and every GST obligation then applies as for any registered person. It can help to claim input tax, or where clients insist on a GSTIN.

Do you have an office in Kolkata?

No. We serve Kolkata clients from our office at Spencer Plaza, Anna Salai, Chennai, through video consultations, secure document sharing and digitally signed filings and reports.

Related Services for Kolkata Businesses

Law stated as at 27 Oct 2026. Official sources: CGST Act, 2017, CGST Rules, 2017 and notifications (CBIC), GST portal, the Directorate of Commercial Taxes, West Bengal. Reviewed by CA V. Viswanathan, FCA, ACS, CFE, IBBI Registered Valuer (IBBI/RV/03/2019/12333).