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When Should You Move from Sole Trader to Company Structure?

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Published: January 2026

If you are running a successful sole trader business, at some point you will ask the question: should I incorporate?

The answer depends on your specific circumstances. There is no magic revenue number that applies to everyone. But there are clear signals that the switch makes sense, and understanding the trade-offs helps you make an informed decision.

This guide walks through the practical considerations: when incorporation typically makes sense, what changes when you switch, and how to avoid common mistakes in the process.

The basics: what is the difference?

As a sole trader, you and your business are legally the same entity. Your business income is your personal income. You are personally liable for business debts. There is no separate legal structure.

A company is a separate legal entity. It has its own Tax File Number, its own bank accounts, and its own legal obligations. You become a director and shareholder, but you and the company are distinct.

This distinction matters for three main reasons: taxation, liability, and credibility.

Tax: when the numbers start to favour a company

The primary tax difference is how income is taxed.

As a sole trader, your business profit is added to your personal income and taxed at individual marginal rates. For the 2025-26 financial year, these rates are:

  • $0 to $18,200: No tax (tax-free threshold)
  • $18,201 to $45,000: 16 cents for each dollar over $18,200
  • $45,001 to $135,000: 30 cents for each dollar over $45,000
  • $135,001 to $190,000: 37 cents for each dollar over $135,000
  • $190,001 and above: 45 cents for each dollar over $190,000

Plus the 2% Medicare levy on most income.

A company, by contrast, pays tax at a flat rate. For base rate entities (companies with turnover under $50 million and less than 80% passive income), the rate is 25%. Other companies pay 30%.

The crossover point where company tax becomes more attractive depends on your personal circumstances, but a common rule of thumb is that incorporation starts making sense when your taxable business income consistently exceeds $140,000 to $190,000. At that level, the difference between paying 37-45 cents on each additional dollar versus 25 cents becomes meaningful.

Below $100,000 to $120,000 in profit, the complexity and cost of a company structure usually outweighs the tax benefit. The sole trader structure's simplicity wins.

However, tax is not the only consideration.

Asset protection: when liability is important

As a sole trader, if your business is sued or incurs debts it cannot pay, your personal assets are at risk. Your house, car, savings, and other personal property can be used to satisfy business liabilities.

A company provides limited liability. If the company is sued or cannot pay its debts, creditors generally cannot pursue your personal assets (with some exceptions for director misconduct or personal guarantees).

This becomes important when:

  • You take on employees and face potential workplace claims
  • You sign significant contracts with clients or suppliers
  • You operate in an industry with litigation risk
  • You have personal assets worth protecting

Many business owners incorporate for asset protection even before the tax benefits become compelling. If you have a family home and are taking on commercial risk, a company structure creates a buffer.

Note that limited liability is not absolute. Directors can be personally liable for certain company debts, including unpaid superannuation and PAYG withholding. And many lenders and landlords require personal guarantees from directors, which removes the protection for those specific obligations.

Professional credibility and growth

Some practical business considerations favour a company structure:

  • Clients and suppliers may take a Pty Ltd more seriously than a sole trader
  • If you plan to bring on business partners, a company makes it easier to allocate ownership
  • If you are seeking investment or planning to sell the business eventually, investors and buyers expect a company structure
  • Employees may feel more secure working for a company than for an individual

These factors are harder to quantify but can matter for your growth plans.

The costs and complexity of a company

A company brings additional obligations and costs:

Setup costs. ASIC charges $576 to register a company (as of 2025-26). You may also incur professional fees if you use an accountant or lawyer to set up the structure.

Ongoing ASIC fees. Companies pay an annual review fee to ASIC, currently $310 for a proprietary company.

Separate tax return. The company lodges its own tax return, separate from your personal return. This adds accounting fees.

Director obligations. Directors have legal duties including acting in good faith, avoiding conflicts of interest, preventing insolvent trading, and maintaining proper records. These carry personal liability.

Payroll for yourself. If you want to access company profits, you typically pay yourself a salary (subject to PAYG withholding) or take dividends. This adds administrative complexity.

More complex record keeping. Companies must maintain share registers, director registers, minutes of meetings, and comply with various reporting requirements.

For a simple business with modest profits, these costs and hassles can outweigh the benefits. For a growing business with meaningful profits and commercial risk, they are worth the trade-off.

Signs it is time to consider incorporating

Based on these trade-offs, consider incorporating when:

  • Your taxable profit consistently exceeds $140,000 to $190,000
  • You are taking on employees or significant commercial contracts
  • You have personal assets worth protecting from business risk
  • You are planning to bring on partners or investors
  • You want to reinvest profits in the business at the lower company tax rate
  • Credibility matters for your client relationships

Incorporation is probably premature when:

  • Your profit is below $100,000 to $120,000 and stable
  • You have minimal commercial risk (no employees, small contracts)
  • You have few personal assets exposed
  • Simplicity is more valuable than potential tax savings
  • You are testing a new business idea and not sure it will succeed

The restructuring process

If you decide to incorporate, the typical steps are:

1. Register the company. You can do this yourself through ASIC or use a registered agent or accountant. You will need to choose a company name, appoint at least one director, issue shares, and set up a registered office address.

2. Obtain a new TFN and ABN. The company needs its own Tax File Number and Australian Business Number.

3. Register for GST and PAYG. If your turnover exceeds $75,000, GST registration is required. If you will pay wages (including to yourself), you need PAYG withholding registration.

4. Open a company bank account. Keep business finances completely separate from personal finances.

5. Transfer business assets. This can include equipment, intellectual property, customer contracts, and other assets. The transfer may have tax implications, including potential Capital Gains Tax. Get professional advice on this step.

6. Update contracts and registrations. Notify clients, suppliers, and relevant bodies that the business is now operated by the company.

7. Wind down the sole trader structure. Cancel registrations, finalise tax returns, and close bank accounts for the sole trader business.

Common mistakes to avoid

Transferring assets incorrectly. Moving assets from sole trader to company can trigger CGT and stamp duty if not done properly. This is one area where professional advice pays for itself.

Not updating contracts. If you continue operating under old contracts in the sole trader's name, you may not get the liability protection you expect.

Forgetting about CGT. If your business has built up goodwill or other valuable assets, transferring them to a company at market value can create a capital gain. Plan for this.

Overcomplicating too early. Some advisors push complex structures involving trusts and bucket companies. These have their place, but for many SMEs, a simple company structure is sufficient. Do not overcomplicate until your situation genuinely requires it.

Ignoring ongoing obligations. Setting up a company is the easy part. Maintaining proper records, lodging returns on time, and meeting director duties requires ongoing attention.

A note on trusts and more complex structures

You may have heard about discretionary trusts, bucket companies, and other tax planning structures. These can offer benefits for some businesses, particularly around income splitting and asset protection.

However, they add significant complexity and cost. They are not necessary for most small businesses, and poorly implemented structures can create more problems than they solve.

If you are considering these options, get advice from a qualified tax professional who can assess your specific circumstances. Do not implement complex structures just because someone told you it is what successful businesses do.

Frequently Asked Questions

At what income level should I consider incorporating?

The tax benefits of a company structure typically become meaningful when taxable profit consistently exceeds $140,000 to $190,000. Below $100,000 to $120,000, the sole trader structure's simplicity usually outweighs any tax savings. However, asset protection and growth plans may justify incorporating at lower income levels.

What is the company tax rate for small businesses?

Base rate entities (companies with turnover under $50 million and less than 80% passive income) pay 25% company tax. Other companies pay 30%.

How much does it cost to set up a company?

ASIC charges $576 to register a company. Annual review fees are currently $310. You may incur additional professional fees if you use an accountant or lawyer to assist with setup and structuring.

Do I need a trust as well as a company?

Not necessarily. Trusts can offer benefits for income splitting and asset protection, but they add complexity and cost. A simple company structure is sufficient for many SMEs. Get professional advice on whether a more complex structure suits your circumstances.

What happens to my existing business assets when I incorporate?

Assets can be transferred from the sole trader to the company, but this may have tax implications including Capital Gains Tax and stamp duty. The method and valuation of the transfer matters. Get professional advice to structure this correctly.

Can I keep operating as a sole trader and have a company for some activities?

Yes, some people operate multiple structures. However, this adds complexity and you need to be clear about which entity is doing what. It can also raise questions about whether you are genuinely separating activities or just trying to avoid tax.

How Scale Suite Helps Australian Businesses

Scale Suite works with Australian SMEs navigating business growth. Our services include:

  • Financial analysis to help you understand when restructuring makes sense
  • Coordination with accountants and lawyers on the restructuring process
  • Ongoing bookkeeping and finance support after incorporation
  • Payroll setup for companies paying directors and employees

We do not provide tax or legal advice directly, but we help you work through the practical and financial considerations and coordinate with appropriate specialists. Contact us at hello@scalesuite.com.au or visit scalesuite.com.au.

This article provides general information about business structures in Australia. It is not tax, legal, or financial advice. Business structure decisions depend on individual circumstances, and we recommend consulting qualified professionals before making changes. Information is current as of January 2026.

About Scale Suite

Scale Suite delivers embedded finance and human resource services for ambitious Australian businesses.Our Sydney-based team integrates with your daily operations through a shared platform, working like part of your internal staff but with senior-level expertise. From complete bookkeeping to strategic CFO insights, we deliver better outcomes than a single hire - without the recruitment risk, training time, or full-time salary commitment.

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