Commercial StudiesICSE Class 9 · Commercial Organisations: Forms of Ownership

Sole Proprietorship, Partnership, One-person Company and Joint Stock Company (ICSE Class 9 Commercial Studies)

Updated 17 October 2026 · Fact-checked

A sole proprietorship has one owner with unlimited liability and no separate legal identity. A partnership (Indian Partnership Act, 1932) has two or more partners with an agreement, mutual agency and unlimited joint and several liability. An OPC (Companies Act, 2013) has one member with limited liability and a nominee. A joint stock company is a registered artificial person with perpetual succession, limited liability and transferable shares.

Understand Sole Proprietorship, Partnership, One-person Company and Joint Stock Company

Sole proprietorship. Owned, financed, managed and controlled by one person who gets all profit and bears all risk.
Features: single ownership; sole management; all profit and loss to the owner; unlimited liability; no separate legal entity; easy formation and closure; lack of continuity; secrecy; limited capital. Examples: grocery shop, beauty parlour, repair workshop.

Partnership. Relation between persons who agree to share the profits of a business carried on by all or any of them acting for all (Indian Partnership Act, 1932).
Features: two or more persons (maximum fixed by company law, currently 50); agreement (written: partnership deed); lawful business for profit; sharing of profits and losses in the agreed ratio (equally if none agreed); mutual agency; unlimited and joint and several liability; no separate legal entity; registration optional; restriction on transfer of interest; lack of continuity.

One-person company (OPC). One member; introduced by the Companies Act, 2013. Features: only one member; a nominee named who steps in if the founder dies or is incapable; separate legal entity; limited liability; private company with '(OPC)' after its name; perpetual succession; fewer compliance requirements.

Joint stock company. Voluntary association registered under company law with capital in transferable shares and limited liability; an artificial person created by law.
Features: incorporated; separate legal entity; perpetual succession; limited liability (limited to unpaid amount on shares); transferability of shares (public company); separation of ownership and management (Board of Directors); large capital; members: private company 2 to 200; public company at least 7, no maximum.

Comparison.

	Sole proprietor	Partnership	OPC	Joint stock company
Owners	one	2 or more	one	many shareholders
Liability	unlimited	unlimited, joint and several	limited	limited
Legal entity	no	no	yes	yes
Continuity	no	no	yes	yes

Liability example. A shareholder holding 1,000 shares of Rs 10 with Rs 6 paid per share can be asked for 1,000 × 4 = Rs 4,000 only.

Draw-and-label checklist. A table of the four forms with the five features above.

Sole Proprietorship, Partnership, One-person Company and Joint Stock Company: key facts

Members of a company: Private company 2 to 200
Public company at least 7, no maximum
OPC 1; Learn the numbers.
Liability of a shareholder: Liability = number of shares
times unpaid amount per share
Limited to the unpaid amount; Limited to the unpaid amount.
Profit sharing: Partner share = total profit × partner ratio
divided by total of ratios
Equal if no agreement; Equal if no agreement.

Private company	2 to 200
Public company	at least 7, no maximum
OPC	1

Sole Proprietorship, Partnership, One-person Company and Joint Stock Company in real life

The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

A bakery whose owner falls ill

Suppose a sole proprietor's bakery closes when he is hospitalised for months, while a large company's factory continues to run when its director is ill.

Which features explain this?

Try it first, then show the solutionSolution

A sole proprietorship lacks continuity: it depends on the owner.
A company has perpetual succession and a Board of Directors, so it continues.

Answer: Lack of continuity versus perpetual succession.

Memory hook: Person versus company.

A partner signs a contract

Suppose one partner in a trading firm signs a purchase order, and the other partners must honour it.

Which feature of partnership is shown?

Try it first, then show the solutionSolution

Every partner is an agent of the firm and of the other partners.
One partner's act binds all: mutual agency.

Answer: Mutual agency.

Memory hook: Each partner is agent and principal.

Tricks to remember Sole Proprietorship, Partnership, One-person Company and Joint Stock Company

Short memory aids. Say each one aloud once, then use it on a question the same day.

Unlimited: SP and P, limited: OPC and JSC
Sole proprietor and partnership: unlimited; OPC and company: limited.
Use it when: Liability.
Artificial person
A company is an artificial person created by law.
Use it when: JSC.
2-200 and 7+
Private company 2 to 200; public at least 7.
Use it when: Members.

Sole Proprietorship, Partnership, One-person Company and Joint Stock Company: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: Which form fits · 1 mark · MCQBoard level

A form of business in which the owner's personal property can be used to pay the business debts and which has no separate legal entity is:
(a) a joint stock company (b) an OPC (c) a sole proprietorship (d) an LLP

Try it first, then show the solutionSolution

Unlimited liability and no separate legal entity describe a sole proprietorship (and an ordinary partnership).

Answer: (c) a sole proprietorship.

Example 2: Profit by capital · 4 marks · Short answerHarder board level

P, Q and R start a firm and agree to share profit in proportion to their capital: P puts in Rs 3,00,000, Q Rs 2,00,000 and R Rs 1,00,000. The year's profit is Rs 78,000. (a) Find the ratio. (b) Find each partner's share. (c) What would each receive if there were no agreement?

Try it first, then show the solutionSolution

(a) Ratio 3,00,000 : 2,00,000 : 1,00,000 = 3 : 2 : 1 (1 mark).
(b) P = 78,000 × 3/6 = Rs 39,000; Q = 78,000 × 2/6 = Rs 26,000; R = 78,000 × 1/6 = Rs 13,000 (2 marks).
(c) Equal shares of Rs 26,000 each (1 mark).

Answer: (a) 3 : 2 : 1. (b) P Rs 39,000; Q Rs 26,000; R Rs 13,000. (c) Rs 26,000 each.

Example 3: Liability of a shareholder · 3 marks · Case-basedHOTS / competency

Anita holds 2,500 shares of Rs 10 each in a company, on which Rs 7 per share has been paid. The company fails with huge debts. (a) What is the most Anita can be made to pay? (b) What would a sole proprietor owing the same debts have to pay? (c) Name the principle.

Try it first, then show the solutionSolution

(a) Unpaid = 10 − 7 = Rs 3 per share; 2,500 × 3 = Rs 7,500 (1 mark).
(b) All debts, using personal property if needed: unlimited liability (1 mark).
(c) Limited liability of shareholders (1 mark).

Answer: (a) Rs 7,500. (b) All debts. (c) Limited liability.

Example 4: Partnership features · 4 marks · Short answerHarder board level

State four features of a partnership and explain mutual agency.

Try it first, then show the solutionSolution

Two or more persons with an agreement (partnership deed) (1 mark).
Profits and losses shared in the agreed ratio (1 mark).
Unlimited and joint and several liability (1 mark).
Mutual agency: every partner is an agent of the firm and of other partners, so one partner's act binds all (1 mark).

Answer: Agreement, ratio, unlimited liability and mutual agency.

Example 5: Why OPC · 3 marks · Short answerBoard level

State two features of an OPC and say why it suits a single entrepreneur.

Try it first, then show the solutionSolution

Separate legal entity and limited liability (1 mark).
A nominee ensures continuity (1 mark).
A single entrepreneur gets company benefits without needing other members (1 mark).

Answer: Separate entity, limited liability, nominee; company benefits for one person.

Where students lose marks in Sole Proprietorship, Partnership, One-person Company and Joint Stock Company

The slips examiners see most often, and what to write instead.

Mistake: Writing limited liability for a partnership
Ordinary partnership has unlimited, joint and several liability.
Wrong working
Partners have limited liability.
Right working
Partners have unlimited and joint and several liability.
Do this: LLP has limited; ordinary partnership does not.
Usually costs: 1 mark.
Mistake: Calling an OPC a partnership
It has one member and is a company.
Do this: One member, one nominee.
Usually costs: 1 mark.
Mistake: Quoting wrong member limits for companies
Private company 2 to 200; public company at least 7.
Do this: Learn both.
Usually costs: 1 mark.

Exam tips

Give meaning and features only; merits and demerits are not required.
Write 'unlimited liability' with personal property.
Quote Acts and years.
Use tables for comparing forms.

Practice questions on Sole Proprietorship, Partnership, One-person Company and Joint Stock Company

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

Q1 · 1 mark · MCQBoard level
The Indian Partnership Act was passed in:
(a) 1932 (b) 1956 (c) 2008 (d) 2013
Hint
Early 20th century.
Answer
(a) 1932.
Q2 · 3 marks · Short answerBoard level
State three features of a sole proprietorship.
Hint
Ownership, liability, entity.
Answer
Single ownership; unlimited liability; no separate legal entity (also sole management, easy formation, lack of continuity).
Q3 · 3 marks · Short answerHarder board level
A private company has 120 members and a public company has 400. Are these within the legal limits for members? Give the limits.
Hint
2 to 200; at least 7.
Answer
Yes. A private company may have 2 to 200 members, so 120 is allowed; a public company needs at least 7 and has no maximum, so 400 is allowed.
Q4 · 3 marks · Short answerHarder board level
A company's director dies, a shareholder sells his shares, and a new director is appointed, yet the company carries on. Name the feature and give two other features that make a company different from a partnership.
Hint
Perpetual succession.
Answer
The feature is perpetual succession. A company is also a separate legal entity and its shareholders have limited liability, unlike partners.
Q5 · 3 marks · Case-basedHOTS / competency
Read and answer.
Suppose three friends start a firm under a written agreement and one friend, without telling the others, signs a large order.
(a) Name the document. (1)
(b) Are the others bound? (1)
(c) Name the feature. (1)
Hint
Partnership deed; mutual agency.
Answer
(a) The partnership deed. (b) Yes, the act of one binds all. (c) Mutual agency.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1.What is a partnership deed?Show answer
A written partnership agreement.
2.Which Act introduced the OPC?Show answer
The Companies Act, 2013.
3.What is perpetual succession?Show answer
Continued existence despite changes in members.
4.Who manages a company?Show answer
The Board of Directors.
5.Maximum partners now?Show answer
50.

Sole Proprietorship, Partnership, One-person Company and Joint Stock Company: frequently asked questions

Is partnership registration compulsory?

No, it is optional but advisable.

What does a nominee do in an OPC?

Becomes the member if the founder dies or becomes incapable.

What is a separate legal entity?

A body that can own property and sue or be sued in its own name.

Can a sole proprietor's business continue after his death?

It lacks continuity and may end with him.