One Person Company Registration — Post-Registration Compliance Guide
The One Person Company (OPC) structure gives a solo founder the operational simplicity of a proprietorship while still delivering the limited-liability shield of a registered company, keeping personal assets ring-fenced from business debts. But incorporation is only day one — once the Certificate of Incorporation is issued, an OPC steps into a full annual compliance calendar under the Companies Act, 2013 and the rules framed under it, plus parallel obligations under the Income Tax Act and GST law where applicable. Missing a deadline does not just mean a late fee; the MCA's additional-fee regime charges per-day penalties that compound quickly, and persistent defaults can put the sole director on the disqualification radar. This guide walks through the recurring annual filings — MGT-7A, AOC-4, DIR-3 KYC, DPT-3, and income tax return — along with the event-based filings that apply only when something changes, such as a director's name, registered office, or the OPC's conversion into a private limited company. Because statutory forms, thresholds and fee schedules are periodically revised, treat the specific figures below as indicative and always verify the live version on the MCA21 portal before you file.
Before you start
- Active DIN for the sole director and a company registered under active/compliant status on the MCA21 portal (not marked ACTIVE non-compliant)
- Valid Digital Signature Certificate (DSC) of the director, renewed and not expired, for signing e-forms
- PAN and Aadhaar of the sole director/shareholder plus PAN of the nominee named at incorporation
- Registered office address proof (rent agreement or ownership document plus a recent utility bill) matching MCA records
- Audited financial statements and books of account maintained per Schedule III of the Companies Act, signed off by a practicing Chartered Accountant
- Bank account statements for the financial year, kept strictly separate from the director's personal account
- Access to the company's MCA21 V3 login credentials and a working email/mobile linked for OTP verification
- Engagement with a practicing CA or Company Secretary for certification of MGT-7A/AOC-4 where mandatory
Step-by-step
Close the books and get financials audited
Within the first few months after financial year-end (31 March for most companies), finalise the profit and loss account, balance sheet, and cash flow statement, then have them audited by a practicing Chartered Accountant.
Even where a statutory audit exemption might apply to very small companies generally, OPCs are typically required to have their accounts audited — confirm applicability with your CA rather than assuming exemption, since thresholds are revised from time to time.
File Form AOC-4 (financial statements) within the OPC timeline
Because an OPC is exempt from holding an Annual General Meeting under Section 96, its AOC-4 filing window is measured from the close of the financial year rather than from an AGM date — broadly within 180 days of financial year-end, which is longer than the 30-days-from-AGM window that applies to other companies.
Attach the audited balance sheet, profit and loss statement, auditor's report, and director's report. Confirm the exact day-count and any extension notifications on the MCA21 portal before the deadline.
File Form MGT-7A (abridged annual return for OPCs and small companies)
OPCs use the simplified MGT-7A annual return form (introduced to replace MGT-7 for OPCs and small companies), summarising shareholding, director details, and key company particulars.
Since there is no AGM, the due date is pegged to the deemed AGM date under the OPC exemption — typically calculated as a fixed number of days after six months from financial year-end. Verify the current computation on the portal each cycle, as the reference date can trip up first-time filers.
Pay MCA/ROC fees and any additional (late) fee due
ROC fees for AOC-4 and MGT-7A are charged on the MCA21 portal based on the company's authorised or paid-up share capital slab. If a filing is delayed, an additional fee accrues per day of delay on top of the normal fee — this can add up meaningfully over even a few weeks, so file as close to the opening of the filing window as your accounts allow rather than waiting for the deadline.
Complete director's KYC via Form DIR-3 KYC / DIR-3 KYC-Web
Every director holding a DIN, including the sole director of an OPC, must complete annual KYC by the prescribed date each year (commonly 30 September, but always confirm on the portal, as extensions are issued in some years).
Missing this deactivates the DIN and attracts a flat late fee to reactivate it — plan this filing independently of the financial-statement cycle since it runs on its own calendar.
File Form DPT-3 (return of deposits) if applicable
If the OPC has any outstanding loans, deposits, or amounts received that are not treated as deposits (such as director loans or advances against supply), a DPT-3 return is typically due by 30 June each year covering the position as of 31 March.
Many small OPCs file a nil/exempted-transactions DPT-3 purely for compliance continuity — check with your CA whether your specific transactions trigger the filing.
File the company's income tax return (ITR-6) and pay advance tax
An OPC is taxed as a domestic company and must file ITR-6 by the applicable due date — later where a tax audit under Section 44AB applies. Corporate tax rates and audit turnover thresholds are revised periodically, so confirm the current rate slab and threshold with your CA rather than relying on a prior year's figures.
Advance tax instalments (typically quarterly) apply once estimated tax liability crosses the statutory minimum — missing an instalment triggers interest under Sections 234B/234C.
Reconcile and file GST returns, if GST-registered
If the OPC is registered under GST, keep monthly or quarterly GSTR-1/GSTR-3B filings current and reconcile input tax credit against GSTR-2B before the annual return (GSTR-9) window opens. Late GST filings attract both late fees and interest, and prolonged non-filing can lead to registration suspension — this compliance stream runs independently of the ROC calendar and needs its own tracker.
Handle event-based filing: change of registered office
A change of registered office within the same city normally needs only board approval and an MCA intimation. Moving to a different city within the same state, or across states, invokes progressively heavier procedures — special resolution equivalents, ROC/Regional Director approval, and updated PAN/GST address linkage. File the relevant change-of-address form promptly since bank KYC, GST registration, and other licences all key off the MCA address record.
Handle event-based filing: change of director or director's name
If the sole director resigns, passes away, or becomes incapacitated, the nominee named at incorporation steps in and must be intimated to the ROC within the prescribed window along with updated KYC.
If the director's legal name changes, file the relevant MCA form with supporting evidence (Gazette notification, updated PAN/Aadhaar) so DIN records and company filings stay consistent — mismatched names are a common cause of rejected e-filings.
Consider voluntary conversion to Private Limited as the business scales
OPCs were previously required to convert to a Private or Public Limited company on crossing a prescribed paid-up capital or average annual turnover threshold, and voluntary conversion carried a two-year lock-in from incorporation. The Companies (Incorporation) Second Amendment Rules, 2021 removed both restrictions — there is no mandatory capital/turnover conversion trigger and no lock-in period, so an OPC may remain an OPC indefinitely or convert voluntarily whenever it wants additional shareholders or an investor-ready structure.
Conversion, when undertaken, involves board and shareholder resolutions, an altered MOA/AOA, and MCA forms to reflect the new structure. Confirm the current procedural requirements with your CA, since rules are periodically amended.
Maintain statutory registers and minute books
Even without an AGM, an OPC must maintain statutory registers (members, directors, charges) and record board resolutions in minutes books, since a sole director cannot dispense with formal documentation of key decisions such as approving financial statements or related-party transactions. Keep these updated contemporaneously rather than reconstructing them at filing time.
Common mistakes to avoid
- Assuming OPCs are exempt from audit entirely — most OPCs still need an audited balance sheet before AOC-4 can be filed; confirm exemption applicability with a CA rather than assuming it.
- Calculating the MGT-7A deadline from a real AGM date instead of the deemed AGM date used for AGM-exempt OPCs, which causes accidental late filing.
- Mixing personal and business bank transactions, which weakens the limited-liability shield and complicates audit trail reconstruction.
- Letting the sole director's DSC expire before an e-filing deadline, forcing a last-minute renewal scramble that delays MGT-7A or AOC-4 submission.
- Missing DIR-3 KYC and only discovering the DIN is deactivated when trying to file an unrelated form months later.
- Ignoring GST return continuity because the ROC calendar is being tracked closely — GST and MCA compliance run on separate, independent timelines.
- Assuming OPCs still face a mandatory capital/turnover conversion trigger — that requirement was removed by the 2021 amendment to the Incorporation Rules, so treat conversion as a voluntary business decision, not a compliance deadline (confirm current rules with your CA).
- Filing forms with a mismatched director name or address that hasn't been formally updated with the ROC first, leading to rejected submissions and resubmission fees.
Frequently asked questions
Is an Annual General Meeting (AGM) required for OPCs?
No. Under Section 96 of the Companies Act, 2013, OPCs are exempt from holding an AGM. However, this does not remove the annual filing obligation — AOC-4 and MGT-7A must still be filed within their respective statutory windows, which are calculated from the financial year-end and a deemed AGM date rather than an actual meeting.
Which annual return form does an OPC file — MGT-7 or MGT-7A?
OPCs (along with small companies) file the abridged MGT-7A form rather than the standard MGT-7 used by larger private and public companies. MGT-7A captures the same core particulars — shareholding, director details, registered office — in a simplified format.
Does an OPC need its accounts audited every year?
In most cases, yes — an OPC's financial statements typically need to be audited by a practicing Chartered Accountant before AOC-4 can be filed, since audit exemptions for very small companies do not straightforwardly extend to all OPCs. Confirm applicability for your specific turnover and capital position with your CA, as exemption thresholds have been amended over time.
What happens if I miss the AOC-4 or MGT-7A due date?
The MCA21 portal charges an additional fee that accrues per day of delay on top of the normal filing fee, and this can escalate significantly the longer the delay continues. Persistent non-filing over multiple years can also lead to the company being flagged for strike-off proceedings and directors facing disqualification under Section 164.
Can I convert my OPC into a Private Limited Company?
Yes. Conversion is voluntary and can be initiated at any time — the earlier mandatory conversion trigger (crossing a prescribed paid-up capital or turnover threshold) and the two-year lock-in on voluntary conversion were both removed by the Companies (Incorporation) Second Amendment Rules, 2021. The process requires board and shareholder approval, amendment of the MOA/AOA, and filing the applicable MCA conversion forms.
Do OPCs need a company seal in India?
No. Following amendments that made the common seal optional for Indian companies, an OPC does not need a physical or digital company seal to execute documents — authorised signatory execution is sufficient.
Is DIR-3 KYC mandatory even though there's only one director?
Yes. Every individual holding a DIN, including the sole director of an OPC, must complete DIR-3 KYC (or the simpler DIR-3 KYC-Web where nothing has changed from the prior year) annually by the prescribed date, or the DIN is deactivated and a reactivation fee applies.
Does an OPC need to file GST returns separately from ROC filings?
Yes, if the OPC is registered under GST. GST return filings (GSTR-1, GSTR-3B, and the annual GSTR-9 where applicable) follow their own monthly/quarterly/annual calendar under GST law and are entirely independent of the MCA/ROC compliance calendar — both need to be tracked in parallel.
What is Form DPT-3 and does every OPC need to file it?
DPT-3 is the annual return of deposits and certain other receipts that are not treated as deposits. It applies where the OPC has outstanding loans, director advances, or similar amounts as of 31 March. Whether a nil filing is still expected depends on the company's transaction profile — confirm with your CA.
What happens if the sole director of an OPC dies or becomes incapacitated?
The nominee named at the time of incorporation (or subsequently updated) automatically becomes the member/director, subject to intimation to the ROC within the prescribed timeline along with the nominee's KYC and consent documentation.
Are the fees quoted in this guide fixed for every OPC?
No. ROC fees scale with the company's paid-up share capital slab, and both fee schedules and statutory thresholds are revised by MCA notifications from time to time. Treat the figures in this guide as indicative and confirm the live fee table on the MCA21 portal, or with your CA, before filing.
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