TL;DR
- A sole proprietorship is owned and operated by one person — simple to register, low cost, full control, but unlimited personal liability.
- A partnership involves two or more people sharing ownership, resources, and liability — more complex, but better for pooling capital and skills.
- Both structures are unincorporated, meaning owners are personally liable for business debts.
- Registration for both structures in Hong Kong is handled through the Inland Revenue Department (IRD) and must be completed within one month of starting business.
If you're starting a business in Hong Kong, one of your earliest decisions is choosing a legal structure.
Two of the most common options are the sole proprietorship and the partnership. Both are straightforward to set up and relatively inexpensive to maintain, but they differ significantly in how ownership, liability, taxes, and decision-making are handled.
What Is a Sole Proprietorship in Hong Kong?
A sole proprietorship is a business owned and operated by a single individual. In the eyes of Hong Kong law, the owner and the business are the same legal entity. There is no legal separation between you and the company.
All profits belong to you, debts and liabilities are yours personally, and business decisions are yours alone to make.
How to Register a Sole Proprietorship in Hong Kong
Registration is handled through the Inland Revenue Department (IRD), and you must apply for a Business Registration Certificate within one month of commencing operations.
The process requires submitting the following:
- Completed Business Registration form (Form IRC 3110A for individuals)
- Your Hong Kong Identity Card (or passport if non-resident)
- Payment of the Business Registration fee
The certificate currently costs HKD 2,000 per year, although this is subject to periodic government waivers.
When applying in person at the IRD Business Registration Office, processing is typically completed on the same day or the next working day, and online applications are also available.
Tax Treatment for Sole Proprietors
Sole proprietors in Hong Kong are taxed under Profits Tax on the assessable profits of the business.
As of the current tax year, the standard Profits Tax rate for unincorporated businesses is 15% on assessable profits, which is slightly lower than the 16.5% corporate rate.
One advantage of a sole proprietorship is that business losses can be offset against other personal income sources, such as rental income or dividends. Reporting is done through the BIR60 (Individual Tax Return), where the business’s profits or losses are declared as part of the owner’s personal income.
Pros of a Sole Proprietorship
- Simple and fast to set up: register with the IRD only; no Companies Registry filing required
- Full control: you make every decision without needing consensus from anyone else
- All profits are yours: no sharing with co-owners or partners
- Lower tax rate: 15% Profits Tax on assessable profits for unincorporated businesses
- No audit requirement: must keep proper accounts, but no statutory audit obligation
- Privacy: no requirement to publicly disclose financial statements
Cons of a Sole Proprietorship
- Unlimited personal liability: your personal assets (savings, property) are at risk if the business incurs debts
- Limited capital access: funding is restricted to your personal savings or loans; no ability to issue shares
- No business continuity: the business does not survive the owner's death or retirement automatically
- Sole burden of management: no partners to share the workload, decisions, or pressure
- Growth ceiling: limited by one person's time, skills, and resources
What it's best for:
Sole proprietorship is best for freelancers, solo consultants, individual service providers who want maximum simplicity and have limited liability exposure.
What Is a Partnership in Hong Kong?
A partnership is a business structure where two or more individuals (or entities) share ownership. Each partner contributes to the business — whether through capital, skills, labor, or property — and shares in both the profits and the liabilities.
Partnerships in Hong Kong are governed by the Partnership Ordinance (Cap. 38).
Types of Partnerships in Hong Kong
1. General Partnership
All partners share unlimited joint liability for the debts and obligations of the business. Each partner is considered an agent of the partnership, meaning one partner's actions can legally bind all others.
2. Limited Partnership
At least one general partner (with unlimited liability) and at least one limited partner (whose liability is capped at the amount they invested). Limited partners cannot participate in day-to-day management. Limited partnerships must be registered with the Companies Registry under the Limited Partnerships Ordinance (Cap. 37).
How to Register a Partnership in Hong Kong
Like a sole proprietorship, a partnership must register for a Business Registration Certificate with the IRD within one month of commencing business. In addition, limited partnerships are required to file a statement with the Companies Registry (Form LP1), disclosing the names and details of all general and limited partners.
Partnerships should also draft a Partnership Agreement — a private legal document (not filed publicly) that outlines:
- Each partner's capital contribution
- Profit and loss sharing ratios
- Decision-making authority
- Procedures for admitting or removing partners
- Dispute resolution mechanisms
- What happens if a partner exits or dies
While a Partnership Agreement is not legally required in Hong Kong, operating without one carries significant risk, as the default provisions under the Partnership Ordinance will apply, which may not reflect the partners’ actual intentions.
Tax Treatment for Partnerships
Like sole proprietors, partners are taxed individually on their share of the partnership’s profits. Each partner reports their respective share in their personal tax return (BIR60), while the partnership itself files a Profits Tax Return (BIR52) to declare the overall financial results.
One key advantage is that partners may use their share of business losses to offset other personal income. The applicable tax rate is the 15% unincorporated business rate, with profits allocated proportionally among the partners.
Pros of a Partnership
- Pooled capital: partners combine financial resources, reducing individual funding pressure
- Shared expertise: different partners bring different skills, widening the business's capabilities
- Distributed workload: management responsibilities and day-to-day operations can be divided
- Broader networks: access to each partner's professional contacts, clients, and supplier relationships
- Shared financial risk: losses and liabilities are distributed across partners rather than borne by one person
- Tax flexibility: partners can offset business losses against other personal income
Cons of a Partnership
- Unlimited joint liability: general partners are personally liable for all partnership debts, including those caused by co-partners
- Shared profits: earnings are divided, which can create tension if contributions feel unequal
- Potential for disputes: disagreements over direction, spending, or workload are common without a clear agreement
- One partner can bind all others: any partner acting as an agent of the partnership can create obligations for everyone
- No separate legal identity: the partnership does not exist independently of its partners; it may dissolve when a partner exits
- Additional registration: limited partnerships require a separate filing with the Companies Registry
What it’s best for:
Partnership is best for two or more co-founders who want to operate together, share resources and decision-making, and benefit from each other's networks — but must be comfortable with shared liability.
Sole Proprietorship vs Partnership: A Direct Comparison
| Factor | Sole Proprietorship | Partnership |
|---|---|---|
| Number of owners | 1 | 2–20 (general partnership) |
| Legal identity | Not separate from owner | Not separate from partners |
| Liability | Unlimited personal | Unlimited joint (general); limited for limited partners |
| Decision-making | Full autonomy | Shared among partners |
| Capital | Limited to owner's resources | Combined partner contributions |
| Tax filing | BIR60 (personal return) | BIR52 + individual BIR60 for each partner |
| Tax rate | 15% (unincorporated) | 15% split across partners |
| Partnership agreement | Not applicable | Highly recommended, not legally required |
| Registration | IRD only | IRD + Companies Registry (limited partnership) |
| Financial disclosure | Not required publicly | Not required publicly |
| Best for | Solo founders, freelancers | Co-founders, collaborative ventures |
Key Differences That Actually Matter
1. Liability
This is where most entrepreneurs underestimate the risk. In both structures, your personal assets are exposed.
For sole proprietors, it’s entirely on you.
In general partnerships, you’re also liable for your partners’ actions—meaning you can be held responsible for decisions you didn’t make.
Limited partners can avoid this, but only if they stay out of management.
2. Decision-Making and Control
Sole proprietors have full autonomy—fast, flexible, and unchecked.
Partnerships bring more perspectives, but also friction.
Disagreements are common, which is why a clear Partnership Agreement is essential.
3. Capital and Growth Potential
Sole proprietorships are limited by one person’s resources.
Partnerships can pool capital and credibility, but raising external investment is still difficult without moving to a limited company.
4. Continuity
A sole proprietorship ends when the owner exits. Partnerships typically dissolve when a partner leaves, unless otherwise agreed. Neither structure offers the perpetual succession that a limited company provides.
How Air Corporate Can Help
At Air Corporate, we work with entrepreneurs across the world who are setting up businesses in Hong Kong — often entirely remotely, without ever needing to visit the city in person.
Our services include:
- Company registration (same-day processing available)
- Business Registration Certificate applications
- Company secretary services (a legal requirement for limited companies)
- Corporate bank account setup — we've helped open 800+ business accounts
- Accounting, audit, and tax filing
- Ongoing compliance support
We've helped over 1,000 companies get set up in Hong Kong. Whether you're a freelancer testing the waters with a sole proprietorship, two co-founders considering a partnership, or a scaling e-commerce business that needs a proper corporate structure, we can guide you to the right answer and execute it quickly.
Ready to get started? Air Corporate handles Hong Kong company formation entirely online; no travel required. Contact us to find the right structure for your business and get set up quickly.
Frequently Asked Questions
Can a non-Hong Kong resident register a sole proprietorship in Hong Kong?
Yes, but it is more complex. There are no nationality restrictions for registering a sole proprietorship, but non-residents may face challenges providing the required identification documents and — more significantly — opening a bank account. Most banks require a physical presence in Hong Kong at some point during the account opening process, which is a practical obstacle for foreign founders.
Do partnerships have to publish their accounts in Hong Kong?
Neither sole proprietorships nor partnerships are required to file accounts publicly. Financial statements are submitted to the IRD for tax purposes only and are not available for public inspection. This can be an advantage for business owners who prefer privacy.
Can I convert a sole proprietorship or partnership into a limited company later?
Yes, but the process is not a direct conversion — it involves registering a new limited company and then transferring the assets and operations from the old structure to the new one. This can have tax implications and requires careful planning. It's worth consulting an accounting or corporate services professional before making the switch.
Which structure is better for opening a Hong Kong bank account?
In practice, limited companies have an easier time opening business bank accounts in Hong Kong — both with local banks and international alternatives. Sole proprietorships and partnerships can open business accounts, but banks apply greater scrutiny, especially for non-residents. If smooth banking access is a priority, this is a significant factor in your structural decision.
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Author
Ava Poon
Ava is a Chartered Public Accountant in Hong Kong who believes good financial management shouldn't require a finance background. She runs her our CPA firm in Hong Kong and is Air Corporate's Number 1 audit partner.
