Billing models: bulk-billing vs mixed vs private

Why billing matters so much

In the NHS, billing is invisible to a GP; care is free at the point of use and funded centrally. Australia works differently, and the billing model is one of the first things a UK or Irish GP has to get their head around, because it sits at the junction of three things at once: what your patient pays, what you earn, and how you practise.

The system rests on the Medicare Benefits Schedule, the national list of services and their rebates. Every billing model is, at heart, a decision about how you charge relative to that rebate: exactly the rebate and no more, or the rebate plus a gap. In most cases the practice, not the individual GP, sets the overall approach, and you work within it with some clinical discretion, so understanding the models is partly about your income and partly about choosing the right kind of practice to join. This guide is part of the Money and practice cluster within the complete relocation guide.

Bulk-billing

Bulk-billing means you bill Medicare directly for a service and accept the Medicare rebate as full payment. The patient pays nothing at the point of care, and Medicare pays you the rebate. It is the model most associated with accessible, no-barrier general practice, and for many patients it is why they can see a doctor at all.

For the GP, bulk-billing tends to mean higher volume at a lower fee per consultation, which suits a busy, high-throughput practice with no gap to charge or collect. The government also offers incentives that top up bulk-billed services in certain circumstances, such as for concession-card holders and children, and these have been expanded over time. Because incentive policy changes, check the current incentives on the Department of Health and Services Australia pages rather than a figure you read somewhere.

Private billing

Private billing is the opposite end: you charge above the Medicare rebate, and the patient pays the difference, the gap, out of pocket. They still claim the rebate back from Medicare, but they carry the gap themselves. This model earns more per consultation and often supports longer appointments and a less rushed style of practice.

For a GP, private billing can mean fewer, longer, better-paid consultations, which some doctors find more clinically satisfying, and others find harder to reconcile with the access ethic that drew them to general practice. Coming from a free-at-point-of-use system, it can take a while to feel comfortable naming a fee to a patient; knowing which way you lean is useful when you choose where to work.

Mixed billing

Mixed billing is exactly what it sounds like, and it is the most common approach in practice. You bulk-bill some patients and privately bill others, typically bulk-billing those who most need cost removed, such as concession-card holders, children or vulnerable patients, while charging a gap to those who can pay. It is the pragmatic middle ground that the great majority of Australian practices land on.

Mixed billing lets a practice protect access for those who need it while remaining financially sustainable, and it gives the GP a balance of volume and fee. The exact blend varies from practice to practice and can shift with policy: governments periodically adjust rebates and the incentives attached to bulk-billing, so treat any specific rebate, gap or incentive as something to verify on the day rather than fix from an old source. What stays constant is the shape of the three models; the figures move underneath. For most UK and Irish GPs arriving in Australia, mixed billing is the model they will actually work under.

The three compared

Side by side, the three models trade the same variables differently: what the patient pays, your revenue per consultation, and your likely volume and consultation length.

What it means for your income

Billing model feeds straight into your earnings, because under the percentage-of-billings model your income is a share of what you bill. Bulk-billing generates a lower fee per consultation but can support a fuller book; private billing generates a higher fee but often fewer patients. Which produces more depends entirely on the balance in your specific situation.

A GP bulk-billing a high volume and a GP privately billing a lower volume can end up in very different places, and only your own numbers tell you where. Run your assumptions through the GP salary calculator to see how the model changes the outcome; it is a guide, not a determination, and the rebates it uses change, so confirm current figures on MBS Online. Your contractor or employee status and billings split then determine what reaches you.

What it means for patients

Billing is not only a financial matter; it is a clinical and ethical one, and this is where many UK and Irish GPs feel the difference most keenly. Bulk-billing removes cost at the point of care, which genuinely matters for lower-income, elderly and vulnerable patients who might otherwise delay seeing a doctor. Private billing places a gap fee in the way, which can deter exactly those patients, while funding longer, less pressured consultations for those who can pay. Most GPs resolve this through mixed billing, and it is worth thinking through your own comfort with it before you choose a practice, since a clinic whose billing approach sits badly with your values will grate however good the money. The how general practice differs guide covers more of these day-to-day contrasts.

How it shapes your working day

Billing model quietly sets the rhythm of your day. A heavily bulk-billing clinic tends toward shorter appointment slots and a fuller book; a private or mixed clinic often runs longer appointments, giving you more time per patient but expecting you to justify a gap fee. Longer consultations make room for the chronic disease and mental health care plans that reward time, while a high-volume bulk-billing day leans on brisk, focused encounters. It also interacts with telehealth and PBS prescribing, which sit inside every model.

Questions to ask a practice

Your real choice is often which practice to join, so ask the right questions before you accept a role and factor billing in alongside the billings split, location and support, as what a good job looks like and negotiating your first contract set out.

These answers connect to the wider decisions of the move: the provider number that lets you bill, and where you can work under the moratorium and its scaling, since rural demand can support a full book. A good recruiter can tell you a practice's real billing culture before you commit.

In summary

Australian GP billing comes in three models built on the Medicare rebate: bulk-billing (the patient pays nothing), private billing (a gap above the rebate), and mixed billing, the most common, which does both. The model shapes your revenue per consultation, your volume, the time per patient and what patients pay. Model the income implications with the salary calculator, and confirm current rebates and bulk-billing incentives on MBS Online and the Department of Health.

Sources

These are the primary sources behind this guide. Read them directly and confirm anything time-sensitive on the day.

Frequently asked questions