If you plan to raise equity funding or issue ESOPs, choose a private limited company — it is the only one of these five structures that can legally do either; if you want limited liability with lighter yearly compliance and no funding ambitions, an LLP is usually the better fit. Between those two anchors sit the OPC (One Person Company — a single-founder company), the sole proprietorship (no registration at all, unlimited liability) and the partnership firm (two or more people, unlimited liability unless converted to an LLP).
The five differ mainly on four axes: who is liable for business debts, how much the ROC and the tax office expect from you every year, whether you can bring in outside investors, and how the structure is taxed. None of them is simply "better" — a two-person consulting practice with no funding plans has different needs from a startup founder targeting a seed round, and the wrong choice is expensive to unwind later.
The five structures at a glance
Private limited company and OPC members risk only the unpaid value of their shares — personal assets stay outside the business’s creditors, a direct result of the separate-legal-entity status a Certificate of Incorporation confers.
LLP partners are liable only up to their agreed contribution under sections 26–28 of the LLP Act 2008, and no partner answers for another partner’s independent or unauthorised acts — this is the core reason founders pick an LLP over a partnership firm once liability protection matters.
A sole proprietor has no legal separation from the business at all: personal assets are exposed to every business debt. A partnership firm is similar but shared — under section 25 of the Indian Partnership Act 1932, every partner is personally and jointly and severally liable for all firm debts and for acts a co-partner takes in the ordinary course of business.
| Structure | Governing law | Minimum people | Liability | Registration route |
|---|---|---|---|---|
| Private limited company | Companies Act 2013 | 2 members, 2 directors | Limited to unpaid share value | SPICe+ (INC-32) with the ROC |
| LLP | LLP Act 2008 | 2 partners, no cap | Limited to agreed contribution | FiLLiP with the ROC |
| OPC | Companies Act 2013, s.2(62) | 1 member + 1 nominee | Limited to unpaid share value | SPICe+ (INC-32) with the ROC |
| Sole proprietorship | No dedicated statute | 1 person | Unlimited, personal | No incorporation — evidenced by GST/Udyam/bank account |
| Partnership firm | Indian Partnership Act 1932 | 2 partners | Unlimited, joint and several | Registrar of Firms (state-level, optional) |
A company (private, public or OPC) and an LLP come into legal existence only when the Registrar of Companies issues a Certificate of Incorporation, making both separate legal entities from their members. A partnership firm and a proprietorship have no such separate-entity status, and no certificate is issued for either.
Registration, minimum people and directors — and the OPC conversion myth
A private limited company needs a minimum of 2 members and, under section 149(1) of the Companies Act 2013, a minimum of 2 directors (maximum 15 for any company, public or private). It is registered through the MCA’s integrated web form SPICe+ (INC-32), filed under sections 4, 7, 12, 152 and 153 — Part A reserves the name and Part B incorporates the company while applying for PAN, TAN, EPFO, ESIC, GST and a bank account in the same filing.
An LLP needs a minimum of 2 partners with no statutory cap on the maximum, registered via the single web form FiLLiP under Rule 11(1) of the LLP Rules 2009, which also reserves the name, allots DPINs and applies for PAN/TAN.
An OPC, defined under section 2(62) of the Companies Act 2013 as a company with exactly one member, needs only one director (up to 15 permitted) and the sole member must nominate another person — with that person’s consent on Form INC-3 — who steps in as member if the original member dies or becomes incapacitated. Since the Companies (Incorporation) Second Amendment Rules 2021, NRIs can incorporate an OPC and the residency test for the member/nominee was cut from 182 to 120 days in the preceding financial year.
A sole proprietorship has no dedicated incorporation statute or central registry — it exists by virtue of whatever the proprietor registers to operate: GST, Udyam/MSME, a Shop & Establishment licence, or a current bank account. See our sole proprietorship registration guide for what that bundle actually involves.
A partnership firm needs 2 or more partners. Registration with the state Registrar of Firms under the Indian Partnership Act 1932 is optional at formation and can be done later — unlike company or LLP incorporation, which is a precondition to the entity existing at all.
Many older articles still say an OPC must convert to a private or public company once paid-up capital crosses ₹50 lakh or turnover crosses ₹2 crore. That trigger was real once, but the Companies (Incorporation) Second Amendment Rules 2021 (effective 1 April 2021) omitted the old mandatory-conversion provision (the former Rule 3(7)) entirely. An OPC today is not forced to convert on hitting either threshold — conversion to a private or public company is voluntary, under the substituted Rule 6 of the Companies (Incorporation) Rules 2014.
If you are reading a page that states the ₹50 lakh / ₹2 crore trigger as current law, it predates April 2021 and is wrong on this point.
Annual compliance, audit thresholds and late filing
Late filing of most MCA/ROC annual forms — AOC-4, MGT-7, LLP Forms 8 and 11 among them — attracts an additional fee of ₹100 per day of delay with no upper cap, effective from 1 July 2018 under the Companies (Registration Offices and Fees) Amendment Rules 2018. Persistent non-filing can trigger striking-off proceedings under STK-2. Whether any 2023–2026 amendment has since capped this per-day fee for specific forms is not something we’ve confirmed against a direct MCA circular — check the current fee schedule before relying on an old figure.
A partnership firm and a sole proprietorship have no equivalent ROC late-filing regime, because neither files ROC annual returns at all.
| Structure | Core annual filings | Audit required? | Board/AGM cadence |
|---|---|---|---|
| Private limited company | AOC-4 (within 30 days of AGM), MGT-7/7A (within 60 days of AGM) | Statutory auditor mandatory under section 139, regardless of size | Minimum 4 board meetings/year (gap ≤120 days), AGM within 6 months of FY-end (extendable) |
| LLP | Form 11 (due 30 May), Form 8 (due 30 October) — Form 11 must be filed before Form 8 can be submitted | Only if annual turnover exceeds ₹40 lakh OR partner contribution exceeds ₹25 lakh (section 34(4) / Rule 24(8)) | No mandatory board/AGM cadence |
| OPC | AOC-4 and MGT-7A annually | Statutory auditor mandatory under section 139 — no size-based exemption for an OPC | No AGM required (section 96 exemption); one board meeting per half-calendar-year, gap of at least 90 days (section 173(5)) |
| Sole proprietorship | None specific to the structure | Not applicable as a structure — audit depends on turnover/other tax rules, not on being a proprietorship | Not applicable |
| Partnership firm | None specific to the structure at the ROC level | Not applicable as a structure | Not applicable |
The LLP (Amendment) Act 2021 introduced a "Small LLP" category — contribution up to ₹25 lakh and turnover up to ₹40 lakh — that qualifies for reduced additional fees and lighter compliance, mirroring the "small company" concept under the Companies Act. Whether this changes the ₹40L/₹25L audit trigger itself, or is a separate compliance-relief classification layered on top, is not settled from primary sources we could fully cross-read this session — treat it as a compliance-cost detail, not a change to the audit threshold above.
Tax treatment
| Structure | How it is taxed |
|---|---|
| Private limited company / OPC | A domestic company can opt for the concessional flat 22% rate under section 115BAA (giving up most exemptions/deductions), an effective 25.168% after a flat 10% surcharge and 4% cess. Companies that don’t opt in are taxed at 25% (turnover up to ₹400 crore in the relevant prior year) or 30% otherwise, plus surcharge and cess. |
| LLP / Partnership firm | Taxed at a flat rate under the Income-tax Act — commonly cited as 30% of total income, plus applicable surcharge and cess — with no lower-slab or turnover-linked concessional rate for LLPs or firms equivalent to section 115BAA. Confirm the current surcharge slab before relying on an exact figure. |
| Sole proprietorship | No separate identity from the owner for tax purposes: business income is clubbed with the individual’s other income and taxed at the individual’s slab rates, with the usual basic exemption, standard deduction and slab benefits available — unlike a company/LLP/firm, which is a distinct assessee taxed from the first rupee of profit. |
Under section 44AD of the Income-tax Act, an eligible resident individual, HUF or partnership firm (not LLP) with turnover up to ₹2 crore can declare presumptive income at 8% of turnover (6% for receipts through banking/digital modes) instead of maintaining detailed books and undergoing a tax audit; opting in binds the taxpayer to the scheme for 5 consecutive assessment years.
Funding, ESOPs and DPIIT recognition
DPIIT (Startup India) recognition is open only to a private limited company, an LLP, or a partnership firm registered with the state Registrar of Firms — provided the entity is under 10 years old and has not exceeded the notified turnover ceiling in any year since incorporation, and was not formed by splitting up or reconstructing an existing business. A sole proprietorship, having no registerable legal form, and an unregistered partnership firm are not eligible entity types for DPIIT recognition. Check the current Startup India criteria before relying on any specific turnover figure — sources vary on the exact ceiling.
Equity fundraising and ESOPs both depend on share capital, which only a company (private limited or, at a stretch, OPC before conversion) has. Venture capital investors typically need to hold preference shares or CCPS with board/veto rights backed by a shareholders’ agreement — an LLP cannot issue equity shares, which is the structural reason VC-backed startups incorporate as, or convert to, a private limited company before raising institutional equity. LLPs, proprietorships and partnership firms have no share instrument to grant, so none of the three can structure an ESOP.
Converting, exiting and enforcing rights between structures
A partnership firm can convert into an LLP under the Second Schedule of the LLP Act 2008; a private company can convert into an LLP under the Third Schedule and an unregistered partnership under the Fourth Schedule. An OPC can convert into a private or public company under Rule 6 of the Companies (Incorporation) Rules 2014 — voluntarily, since the 2021 amendment removed the mandatory trigger.
The common upgrade path as a business scales is proprietorship or partnership moving up into a private limited company, typically via a slump sale or business transfer agreement — a private limited company itself cannot convert down into a partnership or a proprietorship.
On the way out, a company or OPC with little or no residual assets or liabilities can generally use the simplified strike-off route (Form STK-2) rather than a full wind-up; a company with assets, liabilities or contested claims still to settle instead goes through formal winding-up or liquidation under the Insolvency and Bankruptcy Code or the Companies Act — a tribunal-driven process, not a ROC filing. An LLP has a broadly similar simplified strike-off route under the LLP Rules. A partnership firm or a sole proprietorship can simply be dissolved by mutual deed or notice, with no ROC filing at all — check the current LLP Rules provision before citing a specific rule number for the LLP route.
Section 69 of the Indian Partnership Act 1932 bars an unregistered partnership firm — or a partner not shown in the Register of Firms — from suing the firm, a co-partner, or a third party to enforce a right arising from a contract. Registering with the state Registrar of Firms is optional at formation, but is a practical precondition for the firm’s own ability to litigate contractual disputes. The bar does not extend to dissolution or insolvency proceedings, and does not stop a third party from suing the firm.
Primary sources
The dates and fees on this page are read off the statute and the statutes and official portals cited, not copied from other guides. You can check every one of them:
- Companies Act 2013, s.149(1) — board composition, minimum/maximum directors
- Companies (Incorporation) Second Amendment Rules 2021 (G.S.R. 91(E)) — OPC NRI/residency/conversion changes
- LLP Act 2008, s.34(4) / LLP Rules 2009, Rule 24(8) — audit threshold
- Indian Partnership Act 1932, s.69 — effect of non-registration
- Income-tax Act, s.115BAA — concessional 22% domestic company rate
- Startup India / DPIIT recognition eligibility (G.S.R. 127(E))
Verified against the statutes and official sources cited above as of September 2026. Your exact position depends on your entity and any notifications or circulars issued since — we confirm it for you, and always recommend checking the official the relevant registrar or portal. CapEasy is a private consultancy and is not affiliated with any government authority. This page is a guide, not legal advice.