Sole Trader vs Company in Australia: Which Structure Is Right for You?

Choosing the right business structure is one of the most important decisions you will make when starting a business in Australia. The structure you choose affects your tax obligations, personal liability, setup costs, and ongoing compliance requirements. The two most common structures for small businesses are the sole trader and the proprietary limited company (Pty Ltd). Understanding the differences will help you make an informed choice.

Sole Trader

A sole trader is the simplest and most common business structure in Australia. As a sole trader, you and your business are the same legal entity — there is no separation between your personal finances and your business finances.

Key features:

Low cost to set up — registering an ABN is free; registering a business name costs $44 for one year or $102 for three years
Simple tax — business income is declared in your personal tax return and taxed at your individual marginal tax rate
Full control — you make all decisions without needing to consult directors, shareholders, or a board
Minimal compliance — no annual ASIC fees, no company tax return, no directors' duties to comply with
Unlimited personal liability — this is the key drawback; if your business incurs debts or is sued, your personal assets (home, savings, car) are at risk

The sole trader structure is ideal for individuals who are just starting out, operating in a low-risk industry, or testing a business idea before committing to a more complex structure.

Company (Pty Ltd)

A proprietary limited company is a separate legal entity, distinct from its owners (shareholders). This separation is the defining feature and the main reason people choose to incorporate.

Key features:

Limited liability — shareholders are generally not personally liable for the company's debts beyond their investment; personal assets are protected
Separate legal entity — the company can own assets, enter contracts, and be sued in its own name
Corporate tax rate — base rate entities pay 25% company tax (for companies with turnover under $50 million); larger companies pay 30%
Higher setup and compliance costs — ASIC registration costs $576 for a new company; ongoing annual review fees apply; directors must comply with the Corporations Act
More credibility — some clients, particularly government and corporate clients, prefer or require dealing with a company

The main disadvantage of a company structure is complexity and cost. You must lodge a separate company tax return, comply with ASIC obligations, maintain proper records, and understand your duties as a director.

Partnership

A partnership involves two or more people carrying on a business together. It is worth understanding even if you plan to operate alone, as it is sometimes mistakenly entered into without a formal agreement.

Each partner is personally liable for the debts of the partnership — including debts incurred by other partners on behalf of the business
Income is split between partners according to the partnership agreement and each partner pays tax at their individual rate
A formal partnership agreement is strongly recommended
Suitable for small professional firms (law, accounting, medicine) and family businesses

Tax Comparison

Tax is often a key driver of the choice between sole trader and company:

Sole trader — taxed at individual marginal rates, which rise from 19% to 45% depending on income; no tax-free threshold after $18,200
Company — pays a flat 25–30% corporate tax rate; profits distributed as dividends come with franking credits, which can reduce the shareholders' personal tax; however, two rounds of tax (company tax + personal tax on dividends) must be considered
At lower income levels (under ~$120,000), a sole trader structure often results in a similar or lower tax outcome than a company once compliance costs are factored in

When to Choose Sole Trader

The sole trader structure is likely right for you if:

You are just starting out and want to keep things simple
Your business carries low risk of liability claims
Your annual turnover is under $75,000 (though GST can still apply voluntarily)
You are the only operator and have no co-founders
You want to test the market before committing to a more complex structure

When to Choose a Company

Consider incorporating if:

You have multiple founders or investors
You need liability protection (particularly in higher-risk industries)
Your clients or contracts require you to operate as a company
You are planning significant growth and want to bring on shareholders or investors
Your income is consistently above approximately $120,000 and the tax savings justify the compliance cost

Changing Structure Later

You are not locked into your initial choice. Many sole traders convert to a company as their business grows. However, the conversion process has tax implications:

Transferring assets from yourself to a company may trigger Capital Gains Tax (CGT) — though small business CGT concessions may apply
GST adjustments may also be required on transferred assets
Seek advice from a registered tax agent or accountant before making the change

Starting as a sole trader and converting later is a common and practical path for many Australian small business owners.