Choosing the right structure for a medical practice is one of those decisions that quietly shapes everything else – how much tax you pay, how exposed your personal assets are, how easily you can bring in a partner later, and even how smoothly you can eventually sell or hand over the practice. Yet a surprising number of doctors are still operating under a structure they chose years ago, often before the practice grew into what it is today, without ever revisiting whether it still fits.
In 2026, with tax thresholds shifting and the ATO paying closer attention to how medical professionals structure their income, it’s worth understanding the three main options available – sole trader, company, and trust – and what each one actually means in practice.
Sole Trader: Simple, But Not Always Efficient
Operating as a sole trader is the most common starting point for doctors, particularly those just beginning in private practice or working as locums. It’s straightforward: income is reported on your individual tax return, there’s minimal setup cost, and administrative overhead is low.
The downside becomes clear as income grows. Sole trader income is taxed at individual marginal rates, which for a high-earning doctor can mean a significant portion of income moving into the top tax bracket. There’s also no legal separation between the individual and the practice – if something goes wrong, personal assets are exposed in a way that other structures are specifically designed to avoid.
Sole trader status works well for doctors just starting out or those with relatively modest, stable income. It becomes less efficient once a practice starts generating surplus income beyond what’s needed for day-to-day living.
Company Structure: Tax Efficiency With Trade-Offs
Operating through a company changes the picture considerably. Company tax rates are generally lower than the top individual marginal rate, which means income retained in the business (rather than drawn out personally) can be taxed more efficiently. Companies also provide a degree of asset protection, since the company itself – not the individual director – generally carries the business liability.
The trade-off is complexity. Companies require more rigorous compliance: annual financial statements, ASIC obligations, and more careful record-keeping. There are also rules around how and when profits can be distributed to shareholders, and getting money out of a company in a tax-effective way requires planning rather than simply withdrawing funds as needed.
For practice owners with multiple doctors, growing revenue, or plans to bring in equipment, staff, or a second location, a company structure often starts to make more sense than staying a sole trader.
Trust Structures: Flexibility for Growing Practices
Discretionary trusts are common in medical practice structuring because they offer flexibility that neither sole trader nor company structures provide on their own. Income can be distributed among beneficiaries – a spouse, adult children, or a related company – in a way that can reduce overall tax paid across a family group, provided it’s done within the rules.
Trusts also provide a layer of asset protection and can make it considerably easier to bring in new partners or restructure ownership later, since beneficial interests can shift without needing to fully dismantle the underlying structure.
The complexity here is real, though. Trust deeds need to be properly drafted and reviewed periodically, trustee decisions must be documented correctly each year, and the ATO scrutinises trust distributions more closely than in previous years – meaning a poorly managed trust can create more risk than it solves.
Many established practices actually operate a hybrid: a trading trust with a corporate trustee, sometimes alongside a separate company or SMSF for other purposes. This isn’t overengineering – it reflects the reality that a growing medical practice usually has more than one financial objective to satisfy at once.
What Actually Determines the Right Structure
There’s no universal “best” structure for doctors – the right choice depends on several factors:
- Income level and stability – higher, more stable income generally benefits more from company or trust structures.
- Growth plans – bringing in partners, associates, or additional locations changes what’s practical.
- Asset protection needs – doctors in higher-risk specialties often weight this more heavily.
- Family financial situation – trust structures are far more valuable when there are beneficiaries in lower tax brackets to distribute to.
- Exit and succession plans – how you eventually sell or hand over the practice should be considered now, not decided retroactively.
This is exactly where the right accounting and business advisory support matters. Structuring decisions made in isolation, without considering tax, growth plans, and long-term succession together, often end up needing to be unwound and rebuilt a few years later, an expensive and disruptive process. Our team at MediSuccess works through this holistically with every practice, taking into account tax and accounting strategy alongside broader business advisory planning, so the structure supports growth rather than limiting it.
If you’re weighing up whether your current structure still fits your practice, it’s also worth reading our related article on why doctors need a specialist accountant, not a generalist – structuring decisions are exactly the kind of area where generic advice tends to fall short.
Getting the Timing Right
One detail practice owners often overlook is that restructuring mid-year, or right before a major transaction (like buying property, taking on a partner, or selling part of the practice), can create unnecessary tax consequences. Ideally, structure reviews happen proactively – as part of an annual planning conversation – rather than reactively, in response to a specific event that’s already locked in.
This is also where SMSF planning frequently intersects with practice structuring, particularly for doctors using a related company or trust to hold practice premises within a self-managed super fund. If retirement planning is part of your long-term thinking, it’s worth reviewing our guide on SMSF strategies for doctors alongside any structuring decision.
Final Thoughts
Getting your practice structure right isn’t a one-time decision – it’s something that should be revisited as income, staffing, and goals evolve. What worked when you opened your first clinic may no longer be serving you five or ten years later. If it’s been a while since your structure was properly reviewed, that alone is a reasonable signal that it’s time for a conversation. MediSuccess has helped many medical professionals across Australia move to a structure that actually matches where their practice is headed – feel free to get in touch if you’d like a second opinion on yours.
Frequently Asked Questions
Not immediately, but it’s worth reviewing your structure once income moves beyond what a sole trader setup handles efficiently, or once you start considering partners, associates, or a second location.
Not always, it depends on how much income is retained in the business versus drawn out personally, and what your overall tax position looks like across the year.
In most cases, yes, though it requires planning around timing, contracts, and any assets already held under the existing structure. This is best done with professional guidance to avoid unnecessary tax triggers.
Flexibility in how income is distributed, particularly where there are family members in different tax brackets, along with a degree of asset protection.
As a general guide, every two to three years, or whenever there’s a significant change – new partners, a change in income, or plans to sell or expand.
Yes, significantly. Some structures make a sale or partial sale far more straightforward than others, which is why succession planning and structuring should be considered together.
There are setup and ongoing compliance costs, but for many growing practices, the tax efficiency and asset protection gained outweigh these costs over time.
Given how many variables are involved, tax, asset protection, growth plans, and succession, this is rarely a decision doctors should make without input from an accountant who specifically understands medical practices.
