What is a One Person Company (OPC) in Kolkata?
A One Person Company (OPC) lets a solo entrepreneur own and run a company with limited liability and a separate legal identity, without bringing in a second partner. For Kolkata's independent professionals, it offers a more formal setup while keeping ownership and decision-making with one person.
This fits Kolkata's growing IT, consulting, and startup ecosystem, from consultants along Park Street and Camac Street to technology businesses in Sector V and Rajarhat. For solo founders serving corporate clients or building technology ventures, OPC registration also provides a credible company identity as the business grows.
ROC Kolkata-I: Office Details and Address
The Registrar of Companies (ROC), Kolkata-I, processes One Person Company registrations, incorporations, annual filings, and other statutory compliances for companies registered in Kolkata.
| Detail | Information |
| Address | Corporate Bhawan, 4th Floor, Plot No. IIIF/16, AA-IIIF, Rajarhat, New Town, Akandakeshari, Kolkata – 700135, West Bengal |
| Phone | 033-22877390 |
| roc[dot]kolkata@mca[dot]gov[dot]in | |
| Working Hours | 9:30 AM to 6:00 PM (Monday to Friday) |
| Regional Directorate | Eastern Regional Directorate, Kolkata |
ROC Kolkata was split into two offices under MCA Notification S.O. 602(E), effective 16 February 2026. Both operate from Corporate Bhawan in New Town. Your filing office is confirmed at the time of incorporation.
Benefits of Registering an OPC in Kolkata
Registering an OPC in Kolkata comes with multiple advantages that support growth and long-term stability:
- An OPC gives solo entrepreneurs a credible business structure to serve customers across West Bengal, the Northeast, Bangladesh, Nepal, and Bhutan.
- Affordable office options in Salt Lake Sector V, New Town, and Rajarhat can help solo owners control operating costs.
- Kolkata Port, the international airport, and strong rail connectivity support faster movement of goods for trading and e-commerce OPCs.
- Registration with RoC Kolkata-I gives the business a formal structure, while CAs and CS professionals can assist with annual compliance.
- An OPC can strengthen credibility when applying for Startup Bengal initiatives, MSME schemes, bank loans, and future funding.
- An OPC can operate across Burrabazar, Bantala Leather Complex, and Kolkata's tea and jute sectors while benefiting from limited liability protection.
Eligibility for One Person Company Registration in Kolkata
To register an OPC in Kolkata, you must meet the requirements under the Companies Act, 2013:
- Single member: One natural person (18 years or older) can form the OPC and may also serve as its director. The company can have up to 15 directors.
- Nominee: A nominee must be appointed during incorporation to take over the membership if the sole member dies or becomes incapable of continuing.
- One OPC limit: An individual can be a member of only one OPC at a time and cannot be a nominee of another OPC.
- No minimum capital: There is no prescribed minimum paid-up capital. The earlier ₹1 lakh requirement no longer applies.
- NRI eligibility: Any Indian citizen can form an OPC, whether resident in India or otherwise. Since the Companies (Incorporation) Second Amendment Rules 2021, effective 1 April 2021, NRIs are eligible. Where residency needs to be established, the threshold is 120 days in the preceding financial year.
- Registered office: The OPC must have a registered office in Kolkata for official communication with the ROC Kolkata-I. A virtual office in Kolkata may be used if it meets applicable requirements.
Documents Required for OPC Registration in Kolkata
You will need documents for the member/director, nominee, and registered office, along with incorporation documents:
| Category | Documents required |
| Member/Director | PAN, Aadhaar or other government ID, recent photograph, address proof, and Class 3 Digital Signature Certificate |
| Nominee | PAN, Aadhaar or other government ID, recent photograph, address proof, and signed INC-3 consent |
| Registered Office | Ownership proof or rental agreement, property owner's NOC where applicable, and a recent utility bill |
| Incorporation documents | Proposed business activity, Memorandum and Articles of Association (MoA/AoA) and INC-9 declaration where applicable |
Note: Submit masked identity documents, such as Aadhaar, where permitted. Documents should be valid, self-attested where required, and consistent with the PAN and incorporation forms.
How to Register a One Person Company in Kolkata?
You can complete OPC registration in Kolkata online through the MCA V3 portal in these steps:
Step 1: Obtain a DSC: Get a Class 3 DSC for the proposed director for e-signing on the MCA portal. The DIN is allotted through SPICe+, so no separate DIN application is required.
Step 2: Reserve the OPC Name: Apply through SPICe+ Part A for a unique name that follows MCA naming rules. Check availability on the MCA portal or withthe company name check tool.
Step 3: Prepare the MOA and AOA: Draft the MOA to define the company's objectives and scope, and the AOA to set its internal management rules.
Step 4: Appoint a Nominee: Appoint a nominee to take over the membership if the sole member dies or becomes incapable of continuing. Submit Form INC-3 with the nominee's consent and required KYC.
Step 5: File SPICe+ Part B: Submit SPICe+ Part B with the required linked forms and documents. The incorporation process also covers DIN, PAN, TAN, and applicable EPFO/ESIC registrations.
Step 6: Receive the Certificate of Incorporation: After approval, the ROC Kolkata-I issues the Certificate of Incorporation containing the company's CIN.
The registration process of an OPC in Kolkata typically takes around 7–10 working days, depending on document readiness and MCA processing.
OPC Registration Fees in Kolkata
The cost of registering an OPC in Kolkata starts from ₹5,000 and goes up to ₹12,000 (including professional fees of ₹1,499), depending on the authorized capital, government charges, and professional service fees.
Below is a clear breakdown of the typical costs involved in OPC registration in Kolkata.
| Particulars | Estimated Costs (₹) | Details |
| Digital Signature Certificate (DSC) | 2,500 | Required for the directors to sign and file forms online. |
| Director Identification Number (DIN) | Nil | A unique identification number allotted by MCA to the director (Included in SPICe+ Form). |
| PAN and TAN | 66 (PAN) + 65 (TAN) | |
| Government Fees | 0-1,000+ | Nil for authorized capital of up to ₹15 lakh, and varies based on capital contribution above that. |
| Stamp Duty | 370 | Fixed duty applies regardless of share capital. |
| Professional / Consultancy Fees | 1,499 | Covers drafting of MOA, AOA, and handling the incorporation process. |
Stamp Duty for OPC Registration in Kolkata
West Bengal, including Kolkata, levies a fixed stamp duty of ₹370 on the MOA and AOA for One Person Company registration. The breakdown consists of:
- ₹60 for the Memorandum of Association (MoA)
- ₹300 for the Articles of Association (AoA), and
- A ₹10 stamp for the incorporation form.
The amount remains the same regardless of the authorized share capital, making Kolkata one of the more cost-effective locations for incorporating an OPC.
Compliance After Registration of OPC in Kolkata
After registering a One Person Company (OPC) in Kolkata, certain legal and tax compliances must be followed:
- Appoint the first statutory auditor within 30 days of incorporation under Section 139(6).
- Keep proper financial records and statutory registers throughout the financial year.
- File Form INC-20A declaring commencement of business within 180 days of incorporation, where applicable.
- Submit Form AOC-4 with the RoC Kolkata-I within 180 days from the end of the financial year.
- File the Income Tax Return (ITR) by 31 October, as every OPC requires a statutory audit under the Companies Act (or by 30 November if transfer pricing provisions apply).
- Complete the audit before filing the income tax return and financial statements if the OPC is required to be audited.
- File Form MGT-7A, the annual return applicable to OPCs and small companies, within 60 days from the date the sole member adopts the financial statements.
- File GSTR-1 and GSTR-3B monthly or quarterly, depending on the GST scheme opted for. If applicable, file the annual return by the notified due date.
Connect with RegisterKaro and let our experts handle the legal hassle while you grow your business.
Frequently Asked Questions (FAQs)
What is the minimum capital required for an OPC in Kolkata?
There is no prescribed minimum paid-up capital for an OPC. You can choose the capital based on your business requirements.
Are stamp duty charges for OPC registration different in Kolkata?
Yes, West Bengal charges ₹370 as stamp duty for OPC incorporation documents. This fixed amount makes Kolkata's stamp duty significantly lower than in states where incorporation duty is linked to authorized capital.
Can I move my OPC's registered office from Kolkata to another city?
Yes, an OPC can shift its registered office by following the prescribed filing process. Moving within West Bengal generally involves fewer approvals, while an inter-state shift requires additional corporate approvals and Regional Director involvement where applicable.
What local registrations might an OPC need in Kolkata?
Depending on its activity and employees, an OPC may need Kolkata Municipal Corporation trade licensing, West Bengal Professional Tax, and Shops and Establishments registration, in addition to MCA compliance.
Can a salaried person in Kolkata register an OPC?
Yes, a salaried person can form an OPC if their employment terms permit outside business activities. The OPC's business income is separate from the individual's salary for tax reporting.
Can an OPC in Kolkata convert into a Private Limited Company later?
Yes, since the 2021 amendments, an OPC can convert into a Private Limited Company voluntarily without waiting for a prescribed period or reaching the earlier capital or turnover thresholds.
Why Choose RegisterKaro for OPC Registration in Kolkata?
RegisterKaro makes OPC registration in Kolkata quick, accurate, and compliant with ROC and West Bengal requirements. Here's how we help:
- End-to-end ROC filing: We prepare and file everything from SPICe+ incorporation forms to post-registration submissions, correctly and on time.
- Expert MOA and AOA drafting: We draft your MOA and AOA and prepare supporting documents, including the nominee's Form INC-3.
- Deadline tracking: Our experts monitor key filing deadlines and submit on time, helping you avoid unnecessary compliance issues.
- Kolkata-specific know-how: We understand ROC Kolkata procedures and West Bengal requirements, helping local founders prepare the right documents.
- Post-incorporation support: From current account opening and GST registration to applicable trade licences and annual compliance, we support you after incorporation.
- Name approval assistance: We help you choose an OPC name that aligns with MCA naming rules and check potential conflicts before filing.

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