Why this matters for your practice
Payroll tax has become one of the most significant financial risks in general practice, because state revenue offices have applied relevant contract provisions to the common arrangement where a practice engages doctors as contractors and processes patient fees on their behalf. A series of rulings found that, depending on the flow of funds and the substance of the arrangement, payments to contractor doctors can be deemed wages and so subject to payroll tax. The exposure can be retrospective and substantial.
This sits alongside, but is separate from, the employee-versus-contractor question: a doctor can be a genuine contractor for other purposes and still trigger payroll tax.
Why contractor doctors can be caught
State payroll tax laws include relevant contract provisions designed to stop businesses avoiding payroll tax by using contractors. Where a practice's arrangement falls within these provisions, payments that flow to or through the practice for the contractor's services can be treated as taxable wages. The way patient fees are collected and distributed, and how independent the doctors genuinely are, heavily influence the outcome.
A state-by-state patchwork
The rules are administered by each state and territory, and the position now varies considerably:
- Some jurisdictions ran amnesties or offered concessions for general practices, which have since changed or ended.
- Thresholds, rates, and the treatment of bulk-billing income differ between states.
- A practice operating across borders may face different treatment in each.
A practice needs to know the current position in its own state, not a general rule.
What practices should do
- Review how patient fees flow between the practice and contractor doctors.
- Seek advice on whether arrangements fall within the relevant-contract provisions in your state.
- Keep up with changing state positions, amnesties, and concessions.
- Consider structure and documentation that reflect genuine independence where that is the reality.
Common mistakes
- Assuming a contractor label avoids payroll tax. Relevant-contract rules can still apply.
- Relying on an expired amnesty.
- Treating it as one national rule when it is state-based and divergent.
Frequently Asked Questions
Do medical practices have to pay payroll tax on contractor doctors?
They may. State relevant-contract provisions can treat payments to contractor doctors as wages subject to payroll tax, depending on the arrangement and how patient fees flow. Several rulings have found common practice structures liable, so each practice should check its own state's position.
Why are GP practices facing payroll tax bills?
State revenue offices have applied relevant-contract provisions to the typical model where practices engage doctors as contractors and handle their billing. Where the arrangement falls within those provisions, the payments can be deemed taxable wages, sometimes retrospectively.
Is payroll tax the same in every state?
No. Payroll tax is a state and territory tax, and thresholds, rates, concessions, and the treatment of medical practice arrangements differ between jurisdictions. Some states ran amnesties for general practices that have since changed or ended.
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