Why Your Business Structure Is One of the Most Important Decisions You Will Make
Choosing the right business structure is one of the most critical decisions when starting or growing a business in Australia. Your structure determines how you operate, how much tax you pay, your personal liability exposure, how easy it is to raise capital, and how the business can be transferred or wound up in the future. Getting it right from the start — or restructuring at the right time as your business grows — can save you significant amounts in tax and protect your personal assets.
At Trinity Accounting Practice, we help businesses across Sydney and Australia understand their options and choose the structure that best aligns with their goals, income level, and risk profile.
The Main Types of Business Structures in Australia
Sole Trader
A sole trader is the simplest and least expensive structure to set up. You have full control over the business, and all income and expenses are reported on your personal tax return. The key advantage is simplicity — there are minimal regulatory requirements, and you can start trading as soon as you have an ABN.
The main drawback is that you are personally liable for all debts and legal actions against the business. There is no legal separation between you and the business, which means your personal assets — including your home, car, and savings — are at risk if the business incurs debts or is sued. Additionally, all business profits are taxed at your personal marginal rate, which can reach 47% (including Medicare levy) at the top end.
Partnership
A partnership is a business owned by two or more people who share the profits, losses, and management responsibilities. Each partner reports their share of the partnership's income on their personal tax return. Partnerships are relatively simple to set up and offer shared management and resources.
However, each partner is jointly and severally liable for the debts and obligations of the partnership. This means one partner can be held responsible for the full amount of a partnership debt, even if the other partner created it. A formal partnership agreement is essential to set out each partner's rights, responsibilities, profit-sharing arrangements, and processes for resolving disputes or dissolving the partnership.
Company (Pty Ltd)
A company is a separate legal entity from its owners (shareholders) and directors. This separation provides limited liability, meaning the shareholders' personal assets are generally protected from business debts and legal claims (although directors can face personal liability in certain circumstances, such as under the Director Penalty Regime for unpaid PAYG, GST, or superannuation).
Companies pay tax at the corporate rate — currently 25% for base rate entities with an aggregated turnover under $50 million, or 30% for other companies. This is significantly lower than the top individual marginal rate of 47%, making a company structure more tax-effective for businesses generating higher profits. However, companies have more compliance and reporting requirements, including annual ASIC fees, financial statement preparation, and director duties under the Corporations Act 2001.
Profits retained in the company are taxed at the company rate and can be distributed to shareholders as franked dividends, with franking credits that offset the tax already paid by the company. This avoids double taxation and allows shareholders to receive the dividend with a credit for the company tax already paid.
Trust
A trust is a structure where a trustee (either an individual or a company) holds and manages assets for the benefit of nominated beneficiaries. The most common type used in small business is the discretionary (family) trust, which gives the trustee flexibility to distribute income among beneficiaries each year in a tax-effective manner.
Trusts offer tax flexibility because income can be distributed to beneficiaries on lower marginal tax rates, potentially reducing the overall family tax bill. Trusts also offer asset protection benefits when combined with a corporate trustee.
However, trusts are more complex to establish and manage, and the ATO has specific anti-avoidance provisions — including Section 100A — that restrict artificial or uncommercial trust distributions. Distributions to adult children or family members must reflect genuine entitlements, and distributions followed by the funds being returned to the primary income earner can be challenged by the ATO. Professional advice is essential when establishing and managing a trust structure.
How Your Structure Affects Tax
Your business structure has a direct and significant impact on how much tax you pay. Sole traders and partners pay tax at their personal marginal rates, which range from 0% to 45% (plus the 2% Medicare levy). As your business income grows, an increasing proportion is taxed at the higher brackets.
A company structure caps the tax rate at 25% (for base rate entities), regardless of how much profit the company earns. This can result in substantial tax savings for profitable businesses. However, the tax advantage of a company must be weighed against the additional compliance costs and the Division 7A rules, which restrict the ability to access company funds for personal use without triggering a deemed dividend.
A trust can distribute income to beneficiaries on lower marginal rates, potentially spreading the tax burden across multiple family members. However, all trust distributions must be made before 30 June each year, and the trustee must make a formal resolution to distribute income. Any undistributed income is taxed at the top marginal rate of 47% (including Medicare levy).
Our tax team can model the after-tax outcomes of each structure based on your specific income level and family circumstances, helping you make an informed decision.
Legal Liability and Asset Protection
If your business is sued or accumulates debt, your structure determines your level of personal exposure. Sole traders and partners are personally liable, meaning personal assets — including the family home — can be at risk. Companies and trusts with corporate trustees provide limited liability, protecting personal assets from most business claims.
For businesses in higher-risk industries such as trades and construction, medical practices, and real estate, the asset protection benefits of a company or trust structure can be significant. However, limited liability is not absolute — directors can face personal liability for insolvent trading, unpaid employee entitlements, and director penalty notices for unpaid PAYG, GST, and superannuation.
Raising Capital and Business Growth
If you plan to grow your business and need external funding, your structure matters. Companies can issue shares to investors, making it easier to raise capital and bring in business partners without restructuring the entire business. Sole traders and partnerships cannot issue shares and may find it more difficult to attract investors.
Lenders also tend to view companies more favourably when assessing loan applications, as the company's financial records are separate from the owner's personal finances. Our mortgage brokerage division, Nexus Wealth Partners, assists business clients with financing solutions including business loans, equipment finance, and commercial lending.
.jpg)
Business Succession and Continuity
A sole trader business ceases to exist if the owner passes away, becomes incapacitated, or retires. A partnership may dissolve unless there is a formal agreement providing for continuity. Companies and trusts, by contrast, have perpetual succession — they continue to exist regardless of changes to the individuals involved. This makes them far better suited for long-term planning, succession, and eventual sale of the business.
Changing Your Structure as Your Business Grows
Many business owners start as sole traders for simplicity and low cost, then restructure as their income grows and their needs change. The right time to restructure depends on your income level, growth trajectory, risk profile, and personal circumstances. Restructuring can involve transferring assets, which may trigger CGT and stamp duty obligations, so it is critical to get professional advice before making the change.
Our business advisory team regularly assists clients with restructuring, modelling the tax and legal implications of each option, and managing the transition process. Whether you are in hospitality, retail, IT, childcare, or any other industry, we help you find the structure that supports your goals while minimising your tax and protecting your assets.
For businesses that need ongoing strategic financial oversight, our Virtual CFO division, VCFO Australia, provides budgeting, forecasting, and compliance support to ensure your structure continues to serve your needs as your business evolves.
Trinity Accounting Practice
Accounting Firm in Beverly Hills, Sydney
Phone: 02 9543 6804
Address: 159 Stoney Creek Road, Beverly Hills NSW 2209
Website: www.trinitygroup.com.au
Weekend and after-hours appointments available
Our Virtual CFO division, VCFO Australia, provides strategic financial management, budgeting, forecasting, and compliance support for growing businesses and not-for-profits.
Learn more about what we offer
Discover the industries we specialise in
Read more tax and accounting tips on our blog
Our mortgage brokerage division, Nexus Wealth Partners Pty Ltd, assists clients with home loans, refinancing, and business finance.
Disclaimer: Information provided on this website is intended as a general overview only and does not replace professional advice tailored to your personal circumstances.
