The first decision, and the one people get wrong for the wrong reason
Before the product, before the pitch, every founder has to answer one question: what legal structure does the business run on? Most people choose based on what is cheapest to set up or what a friend used — and then discover a year in that the structure blocks the thing they actually need, whether that is raising money, protecting personal assets, or issuing ESOPs. The five options in India are the sole proprietorship, the partnership firm, the Limited Liability Partnership (LLP), the One Person Company (OPC), and the Private Limited company. This guide compares them on the things that actually decide the choice — liability, funding, tax and compliance — so you pick for where the business is going, not just where it starts.
The five structures in one line each
- Sole Proprietorship — you are the business. No separate legal entity, no registration to create it, minimal compliance. The simplest and cheapest, and the riskiest.
- Partnership Firm — two or more people under the Indian Partnership Act, 1932, on a partnership deed. Simple, but the partners carry unlimited personal liability.
- LLP — a Limited Liability Partnership under the LLP Act, 2008. A separate legal entity with limited liability and lighter compliance than a company. Good for professional firms and cash-flow businesses.
- OPC — a One Person Company under the Companies Act, 2013. A company with a single shareholder, giving a solo founder limited liability and corporate status.
- Private Limited — a company under the Companies Act, 2013, with 2 to 200 shareholders. The most compliance-heavy, and the only structure built to raise venture capital and issue ESOPs.
1. Liability: does a bad year cost you your house?
This is the dividing line that matters most, and it splits the five cleanly in two.
In a sole proprietorship and a partnership firm, there is no legal separation between you and the business. Business debts are your debts; if the business is sued or cannot pay, your personal assets — savings, home, car — are exposed. In a partnership it is worse, because each partner is liable for the whole, including debts run up by the other partners.
An LLP, OPC and Private Limited are separate legal persons. Your liability is limited to what you put in; the business's debts stop at the business (barring fraud or personal guarantees). For any venture with real financial risk, contracts, or outside money, that separation is the whole point of incorporating.
2. Raising money: the clause that decides it for startups
If you intend to raise external equity — angels, VCs, an accelerator — the choice is effectively made for you: you need a Private Limited company. Venture money comes in through instruments like Compulsorily Convertible Preference Shares that only a company can issue, and the whole term-sheet architecture assumes a company. We cover exactly how that works in our guides to convertible notes and CCPS and to term sheets and shareholders' agreements.
An LLP cannot easily take institutional equity — investors do not buy "partnership interest", and the LLP structure does not fit standard funding paperwork or foreign-investment rules well. An OPC has only one shareholder by definition, so it cannot bring in an investor without first converting to a Private Limited. A proprietorship or partnership cannot issue shares at all. So the rule is blunt: if raising equity is on the roadmap, start as — or convert early to — a Private Limited.
3. ESOPs: only a company can grant them
Attracting talent with equity instead of cash needs an employee stock option pool, and only a company (Private Limited or OPC) can issue ESOPs. An LLP or partnership cannot. If hiring senior people on equity is part of the plan, that too points to a company — and how those options are taxed is a topic in itself, covered in our guide to ESOP taxation.
4. Tax: the headline rates
The structures are taxed on different bases, and the gap is real:
- Sole proprietorship — taxed as your personal income, at individual slab rates (under the old or the new regime). At low income this is the most tax-efficient; at high income the top slab bites.
- Partnership firm and LLP — taxed as a separate entity at a flat 30%, plus surcharge (where income exceeds ₹1 crore) and a 4% health and education cess. There is no slab benefit, but the firm can deduct partner remuneration and interest within limits.
- Company (OPC or Private Limited) — a domestic company can opt into the concessional regime under Section 115BAA and be taxed at 22% (plus surcharge and cess, an effective rate of roughly 25%) provided it forgoes specified deductions; a new manufacturing company can go as low as 15% under Section 115BAB. Companies also face dividend taxation in the shareholder's hands when profits are distributed, which is the trade-off for the lower corporate rate.
Tax rarely decides the structure on its own — liability and funding usually dominate — but for a profitable, self-funded business the company rate of 22% versus a firm's 30% is worth modelling with your CA.
5. Compliance: the annual cost of the structure
Compliance load rises steeply from left to right:
- Proprietorship — lightest. Income-tax return, and GST or professional-tax filings if applicable. No ROC filings.
- Partnership firm — light. Firm's income-tax return; registration of the firm is optional (though an unregistered firm cannot sue to enforce its rights).
- LLP — moderate. Annual filings to the Registrar (Form 8 and Form 11) regardless of activity, plus the income-tax return. A statutory audit is required only if turnover exceeds ₹40 lakh or contribution exceeds ₹25 lakh — a genuine saving over a company.
- OPC and Private Limited — heaviest. Annual ROC filings (AOC-4, MGT-7/7A), a mandatory statutory audit from year one regardless of turnover, board meetings and minutes, director KYC, and the various event-based filings. This is the real cost of the company form, and it is ongoing.
The OPC, and the 2021 rule change worth knowing
The One Person Company is often the right answer for a solo founder who wants limited liability and corporate credibility without a co-founder. Two changes from 1 April 2021 made it far more useful: the old rule forcing an OPC to convert to a Private Limited once it crossed ₹2 crore turnover or ₹50 lakh paid-up capital was removed, so an OPC can now grow without a mandatory conversion, and NRIs became eligible to form one (with the residency test relaxed to 120 days in India in the preceding year). An OPC still needs a nominee — a person who steps in if the sole member dies or is incapacitated — and it still carries full company compliance. When you do want to bring in a co-founder or an investor, it converts to a Private Limited; the mechanics are in our OPC vs Private Limited comparison.
A decision shortcut
- Testing an idea, tiny risk, no outside money, want it cheap: sole proprietorship — but move on once there is real liability.
- Professional practice or steady-cash business, two or more owners, no VC plans: LLP — limited liability with lighter compliance and no from-year-one audit.
- Solo founder who wants limited liability and corporate standing, funding not imminent: OPC.
- Building a startup you intend to fund, hire on ESOPs, and scale: Private Limited, from the start. The compliance cost is the price of being fundable.
The two most common pairwise questions — LLP or Private Limited, and OPC or Private Limited — have their own detailed guides: LLP vs Private Limited and OPC vs Private Limited. For the full formation walkthrough, start with our guide to starting a business in India.
How we handle it at RDA, Baner
At RDA Advisory, Baner, we pick the structure for where your business is heading, not just where it starts. We map your liability exposure, your funding and hiring plans, and your expected profits against the five forms, run the tax comparison for your actual numbers, and then handle the incorporation end to end — the registrations, the PAN and TAN, the bank account, and the first-year compliance calendar. If you outgrow the structure later, we manage the conversion cleanly. Office No. 102, Snehraj Apartment, Baner, Pune 411045 · call +91 77570 45059.
Not sure which structure fits? Let's decide it properly
Starting up in Pune and unsure whether to be an LLP, an OPC or a Private Limited? RDA runs the liability, funding, tax and compliance comparison on your real numbers and incorporates the right one. Book a consult at rdatax.in or call +91 77570 45059 — RDA Advisory, Baner, Pune. If a startup raise is on the horizon, read next how Startup India and DPIIT recognition works once you are incorporated.
Verification note: The structural positions stated here — the separate-legal-entity and limited-liability status of the LLP under the Limited Liability Partnership Act, 2008, of the OPC and the Private Limited company under the Companies Act, 2013, and the unlimited liability of a sole proprietorship and of a partnership firm under the Indian Partnership Act, 1932; the LLP statutory-audit thresholds of turnover exceeding ₹40 lakh or contribution exceeding ₹25 lakh; and the removal, with effect from 1 April 2021, of the mandatory conversion of an OPC on crossing ₹2 crore turnover or ₹50 lakh paid-up capital, together with NRI eligibility to form an OPC — are based on the respective Acts as administered by the Ministry of Corporate Affairs (mca.gov.in) and the Companies (Incorporation) Second Amendment Rules, 2021. The tax rates (individual slab rates for a proprietorship; a flat 30% plus surcharge and cess for a firm or LLP; the concessional company rates of 22% under Section 115BAA and 15% under Section 115BAB, plus surcharge and cess) are as provided in the Income-tax Act, 1961 and are subject to change with each Finance Act. Rates, thresholds and rules change; confirm the current position for your business with your CA before incorporating. This is general information, not legal or tax advice.
