Quick answer: A sole trader operates as an individual with unlimited personal liability and pays tax at personal marginal rates up to 47%. A Pty Ltd company is a separate legal entity that pays a flat 25% tax rate and provides asset protection for its owners. The right structure depends on your profit level, risk profile, and growth plans.
If you started as a sole trader and now wonder whether you've outgrown the structure, you're asking the right question at the right time. Whether you frame it as company vs sole trader or the other way around, most SME owners in the $200k to $1M+ profit zone hit this point. The hesitation is real. Switch too early and you're paying compliance costs that outweigh the benefit. Switch too late and you've handed tens of thousands in unnecessary tax to the Australian Taxation Office (ATO).
This is not a right vs wrong decision. It's a timing decision. And structure is a growth lever, not just a compliance checkbox. At Parkview Advisory, we help SME owners model the numbers and make the switch with confidence.
This article provides specific numbers, concrete thresholds, and a clear framework so you can assess your own position. No vague "it depends" advice. No beginner's comparison chart. Just the strategic detail you need to make the call.
Why Sole Trader Works
The sole trader structure has genuine advantages, particularly for early-stage businesses in Australia. Simplicity is the obvious one. You report business income directly in your personal tax return. There's no separate company tax return, no Australian Securities and Investments Commission (ASIC) fees, and no director obligations. Business name registration costs $45 for one year or $104 for three years. You get full, direct access to your business profits without worrying about how you extract them.
You also access the $18,200 tax-free threshold, and the 50% capital gains tax (CGT) discount on business assets held over 12 months. For a business earning under $100k in taxable profit, this structure is hard to beat on a net basis. This is the core of the sole trader vs. company question in Australia at lower income levels.
The problem is marginal tax rates. At $45,001, you're paying 32.5%. At $120,001, it jumps to 37%. Above $190,001, you're at 45% plus the 2% Medicare Levy. Compare that to a flat 25% company tax rate, and the gap becomes painful fast. If you're earning $200k as a sole trader, the maths is working against you every single quarter. There are tax minimisation strategies beyond structure that can help, but the rate differential is the biggest driver.
Then there's personal liability. As a sole trader, your personal assets, your home, savings, and investments, are exposed to business debts. For low-asset service businesses with minimal physical risk, the exposure may be manageable. But for trades with on-site risk, businesses holding significant assets, or contract-heavy industries where disputes can escalate, the exposure is a genuine strategic concern, not a hypothetical one.
The sole trader structure is optimised for simplicity and low compliance cost, not for growth, reinvestment, or asset protection.
The Company Advantage: Flat Rates, Asset Protection, and Growth Options
A proprietary limited (Pty Ltd) company, or Pty Ltd company vs sole trader as the comparison is often framed, pays a flat 25% tax rate as a base rate entity, provided turnover is under $50M, and passive income is under 80% of total income. That rate applies regardless of whether profit is $100k or $5M. For growing businesses, structure is the single highest-impact tax minimisation lever available.
Asset protection is structural, not theoretical. A Pty Ltd company is a separate legal entity. Your personal assets sit behind that boundary. Directors have legal obligations under the Corporations Act 2001, but personal liability for business debts is limited to specific circumstances, such as personal guarantees or director misconduct.
Franking credits make the company structure more efficient than the headline rate suggests. Your company earns $100k profit and pays $25k in company tax. It distributes the remaining $75k as a fully franked dividend. You receive the $75k plus a $25k franking credit, giving you $100k of assessable income. You then pay personal tax on that $100k at your marginal rate, but offset the $25k already paid. If your effective personal rate on that income is 30%, you owe $30k less the $25k credit, leaving just $5k additional tax. For owners in retirement or on lower marginal rates, the franking credit can generate a refund.
The downsides are real. Company registration through ASIC is required, and the ASIC annual review fee is an ongoing cost. You must have at least one director who is an Australian resident. You lodge a separate company tax return. And, critically, you cannot simply withdraw company profits at will.
Division 7A is the provision that catches most owners off guard. If you take loans or payments from your company without structuring them correctly, the ATO treats those amounts as unfranked dividends, meaning you pay full personal tax with no franking credit offset. This is avoidable with proper planning, but it requires discipline and advisory support. Parkview Advisory guides clients through Division 7A compliance as part of every company structure engagement.
The company structure connects directly to growth strategy: equity splits, external investment, cleaner succession planning, and the ability to accumulate retained earnings for reinvestment.
Companies cannot access the 50% CGT discount directly. That trade-off matters, and we cover it below.
The Sole Trader vs Company Tax Comparison
At $100k profit, sole trader and company structures produce similar tax outcomes. At $250k, a company saves approximately $19,500 per year. At $500k, the saving grows to $74,500. The table below shows the full sole trader vs company tax breakdown across four profit levels, assuming a single owner with no other income and all company profits are taken as fully franked dividends.
| Profit level | Sole trader tax (incl. Medicare Levy) | Company tax + dividend tax (after franking credit) | Annual difference |
|---|---|---|---|
| $100,000 | ~$24,500 | ~$25,000 (after compliance costs) | ~$500 more as company |
| $250,000 | ~$82,000 | ~$62,500 | ~$19,500 saved as company |
| $500,000 | ~$199,500 | ~$125,000 | ~$74,500 saved as company |
| $1,000,000 | ~$426,000 | ~$250,000 | ~$176,000 saved as company |
Note: sole traders can claim personal super contributions as deductions at the current 11.5% superannuation guarantee rate, which reduces taxable income. Company directors receiving a salary also receive super, but the mechanics differ. Both scenarios should be modelled with your specific numbers by a Parkview Advisory tax specialist.
The crossover point is clear: below $200k, a sole trader remains competitive. Above $200k, the company structure generates meaningful, compounding savings every year you remain in the right structure.
CGT Differences That Matter When You Sell
When you sell business assets or the business itself, the structure you chose years ago determines your tax outcome.
Sole traders access the 50% CGT discount on assets held over 12 months. If you sell a business asset for a $400k capital gain, you pay tax on $200k at your marginal rate. Companies cannot access this discount. That same $400k gain inside a company is taxed at the flat 25% company rate, and when distributed to shareholders, the dividend does not attract the 50% discount.
Both structures can access small business CGT concessions if conditions are met, including the $6M net asset value test. These concessions can reduce or eliminate CGT on the sale of a business, but planning is more complex within a company structure.
If you're planning to sell within the next few years, the CGT implications of switching structures must be modelled before you make any move.
What About a Trust Structure?
Trusts offer a third pathway for family businesses. A discretionary trust can distribute income to beneficiaries at their individual marginal rates, creating significant tax flexibility when family members sit in different tax brackets. Trusts can also stream capital gains to specific beneficiaries who can then access the 50% CGT discount, combining asset protection with CGT advantages.
Trust structures suit family businesses with multiple beneficiaries, asset accumulation strategies, and succession planning across generations. They add compliance complexity and cost. The comparison below summarises the key differences across all three structures.
| Feature | Sole Trader | Pty Ltd Company | Discretionary Trust |
|---|---|---|---|
| Tax flexibility | Low (marginal rates only) | Medium (flat 25% rate) | High (split across beneficiaries) |
| Asset protection | None (personal liability) | Strong (separate legal entity) | Moderate (depends on structure) |
| CGT discount access | Yes (50% after 12 months) | No direct access | Yes (can stream to beneficiaries) |
| Compliance cost | Low | Medium | Medium-High |
| Best suited for | Low-income, early stage | Growth, reinvestment, scale | Family businesses, succession |
Trusts are not a default answer, but for the right family business, they offer flexibility that neither sole trader nor company structures can match. Speak with Parkview Advisory to model all three scenarios for your situation.
The real cost of switching structures
Changing from sole trader to Pty Ltd company is not just a form submission. It triggers a CGT event: all business assets are deemed sold at market value on the date of transfer. If your business has appreciated in value, this can create an unexpected and substantial tax bill.
Beyond CGT, the key operational costs include:
• New Australian Business Number (ABN), Tax File Number (TFN) applications, and bank accounts for the company.
• Contract novation with clients and suppliers, plus lease transfers and insurance policy updates.
• Updated registrations, licences, and merchant facilities.
• Accounting and legal fees for the transition itself are typically managed end-to-end by Parkview Advisory.
Optimal timing matters. Align the switch with the financial year end where possible. Consider current asset values and unrealised gains. Small business restructure rollover relief may allow you to defer the CGT event, but the conditions are strict and not every business qualifies.
The cost of switching is real, but for most businesses in the $200k+ profit zone, the ongoing tax savings recover transition costs within 12 to 24 months.
Decision Triggers: When It's Time to Seriously Consider the Switch
Rather than vague guidance, here are specific triggers. If you answer yes to three or more, it's time to model the numbers seriously with Parkview Advisory.
Is It Time to Incorporate? Parkview Advisory Decision Checklist
☐ Is your taxable business income consistently above $120k?
☐ Are you reinvesting profits back into the business rather than drawing everything out?
☐ Do you hold significant personal assets that could be exposed to business debts?
☐ Are you planning to bring in partners or investors within the next three years?
☐ Is your industry high-risk for litigation or claims?
☐ Are you planning to sell the business in 5+ years, giving time to recover transition costs?
☐ Do you have family members who could benefit from income distribution through a trust or company structure?
☐ Is your business growing at 20%+ annually?
If you answered yes to 3 or more:
contact Parkview Advisory for a structure review.
Sole trader still makes sense in specific scenarios: service businesses with a low asset base and minimal liability exposure; owners planning to exit within two to three years, where the CGT event of restructuring would erode sale proceeds; and businesses with highly variable income year to year, where the tax-free threshold provides a natural buffer.
The two most common mistakes are premature incorporation (switching too early and paying compliance costs that outweigh the tax savings) and delayed transition (staying sole trader too long and paying tens of thousands more in tax every year).
The $200k to $500k profit zone is where the choice of structure has the greatest financial impact for most SMEs. If you've identified triggers above, the next step is modelling your specific numbers with Parkview Advisory.
The Right Structure is a Strategic Decision, Not a Tax Hack
Structure is not about minimising this year's tax bill. It's about building a business that supports your goals, whether that's growth, asset protection, succession, or exit.
The best time to review your structure is before you need to change it. Not after a large tax bill forces the conversation. Not when an investor asks why you're still operating as a sole trader.
This is not a DIY decision at the $200k+ level. The interaction between CGT, Division 7A, franking credits, super, and your personal financial position requires modelling that accounts for your specific circumstances. Parkview Advisory provides the financial clarity that generic calculators cannot.
Ready to find out what the right structure looks like for your business? Book a consultation with the Parkview Advisory team today.
General Advice Disclaimer: This article provides general information only and does not constitute personal financial or tax advice. Consult a qualified tax adviser for advice specific to your circumstances.
Alex
Helping Australian SME owners model structure decisions across tax, risk, growth, and exit planning.