A dental practice in Australia is typically worth between 60% and 90% of its annual gross fees, or 3–6x owner earnings — whichever method you use, the answer is mostly driven by how dependent the revenue is on you personally. A three-chair suburban practice in Brisbane billing $1.8 million through two associates is a very different asset from a solo principal billing $900K out of a converted shopfront. Same industry. Completely different businesses.
If you’re close to retirement, thinking about bringing in an associate, or just curious what you’ve actually built, this is how the numbers work.
The Two Methods Buyers Use
There’s no single formula for dental practice valuation in Australia, but most buyers (whether private investors or professional services firms like ours) use one of two approaches — sometimes both, as a cross-check.
Gross fee percentage. The simplest method: take your average annual gross billings over three years and apply a percentage, typically 60–90%. A practice billing $1.2M per year at a 75% multiplier is worth $900K. It’s quick, it’s intuitive, and it’s the method most accountants fall back on. The problem is it ignores profitability entirely — a $1.2M practice with razor-thin margins because the principal pays inflated lab fees and runs a bloated team isn’t worth the same as one that drops 35% to the bottom line.
Capitalised future maintainable earnings (FME). The more rigorous method. You start with three years of financials, calculate a sustainable owner benefit (effectively profit before the principal’s own salary and personal expenses run through the business), adjust for one-off items, and multiply. Smaller practices typically attract multiples of 2.5x–4x owner earnings. Multi-chair practices with strong associate structures and a PE buyer in the room can reach 5x–7x.
For a well-run three-chair practice in a metro suburb — solid patient base, two associates, experienced dental nurse team, clean lease — you’re looking at 4x–5.5x maintainable owner earnings. That’s the range where most competitive processes settle.
Both methods should produce roughly similar answers if your margins are near industry benchmarks. If they diverge dramatically, something unusual is happening — either in the practice’s cost structure, or in how the financials have been presented.
What the 50-40-30 Rule Actually Means for Your Sale Price
Dentistry has an informal benchmark called the 50-40-30 rule: overheads eat roughly 50% of gross fees (staff wages, lab costs, consumables, rent, equipment leases), the principal draws around 40% as salary or profit, and approximately 30% remains as discretionary cash flow — the pool a buyer can use to service acquisition debt.
This is why buyers care about your overhead structure as much as your revenue. A practice billing $1.5M but running 65% overheads (not uncommon when the principal has been generous with staff over the years) leaves almost nothing for a buyer to work with after they service a loan. That practice will attract a lower multiple, or it won’t sell at all.
Conversely, a well-systemised practice at 48% overheads running through a practice management platform like Dental4Windows or Exact Software — with clear reporting, predictable recalls, and a team that functions without the principal micromanaging — is genuinely attractive. That’s the practice buyers pay premiums for.
The Factor That Moves the Number More Than Anything Else
Patient retention after you leave.
I spoke recently with a broker who’d just unwound a deal — the practice had valued at $1.1M, attracted two serious buyers, and then collapsed when the departing principal declined to do a handover period longer than six weeks. The buyers walked. The second offers came in at $720K. The principal eventually accepted $740K, almost four months later.
That’s not an edge case. That’s the 80/20 rule at work: if the top 20% of your patients are loyal to you personally — and you’ve been practicing there for 25 years in a small regional town — a buyer is effectively purchasing a patient list with a high attrition risk. Sophisticated buyers price that in immediately.
What mitigates this risk, in descending order of effectiveness:
- A long, structured handover (12 months is not unusual for larger practices)
- An associate who has already been working alongside you and has built their own patient relationships
- A patient communication strategy that introduces the incoming dentist before the sale completes
- A modern recall system with high re-booking rates — patients who’ve been through the chair twice in the last 18 months are far less likely to wander
The two-year rule in dentistry acknowledges this reality: it typically takes a new principal two full years to demonstrate that the patient base is genuinely retained. Earn-out provisions in dental practice sales — where part of the purchase price is contingent on maintaining billings at agreed levels — exist precisely because of this dynamic.
What Separates a Premium Valuation From an Average One
I’ve seen a lot of dental practice sales in Australia. Here’s what the top-end deals share — and what the disappointing ones usually have in common.
Above-market multiples tend to come with:
- Three or more treatment chairs, at least two of which are regularly producing
- Associate dentists generating more than 50% of billings (the practice isn’t dependent on the principal)
- A modern practice management system with clean patient data and high recall rates
- A long lease on good terms in a metro suburb with population growth
- Recent equipment that doesn’t need a buyer to spend another $150K on a CBCT machine in year one
- An EBITDA margin above 25%
Below-market outcomes tend to involve:
- A solo principal who runs every clinical hour
- A lease expiring within 12 months with no renewal certainty
- Old equipment that a buyer will need to immediately replace
- Patient data that’s a mess — multiple recalls outstanding, high inactives, concentration in a single fee type
- A history of erratic billings (this suggests something irregular, and buyers notice)
None of these are necessarily dealbreakers, but every item on the second list chips away at your multiple. Address what you can before you put the practice on the market. A conversation with an advisor twelve months before you want to sell is almost always worth it.
Tax: What You Actually Walk Away With
This is the part most dentists leave until far too late. The sale of a dental practice typically generates a capital gain, and how much of that gain you actually keep depends heavily on the structure of the deal, the structure of your practice entity, and whether you qualify for the small business CGT concessions.
If your practice is held through a company and you sell shares rather than assets, the headline rate is your marginal tax rate on the full gain — unless you’ve held for more than 12 months, in which case the 50% CGT discount applies. The small business CGT concessions can reduce that gain further, potentially to zero if you’re over 55 and retiring. But these concessions have turnover and asset thresholds, and they’re not automatic — you have to structure for them.
It’s worth reading the full breakdown of tax on selling a business in Australia before you finalise deal terms. The difference between a well-structured and a poorly-structured sale can easily be $100K–$300K in your pocket.
What Buyers Are Running Through in Due Diligence
By the time a buyer makes an offer, they’ve already formed a view on your practice. Due diligence confirms — or destroys — that view. Common areas that cause post-offer renegotiations in dental practice sales:
- Provider numbers and billing compliance. Buyers are acutely sensitive to Medicare audit risk. If there are anomalies in your billing patterns, they will find them.
- Lease terms. A practice with a lease that expires in 14 months and a landlord who’s indicated they want to redevelop is a different asset from what the headline numbers suggest.
- Equipment age and maintenance records. Compressors, autoclaves, sterilisers, and X-ray units all have service histories. Buyers check them.
- Employment contracts and restraints. If a key associate has no contract, the buyer is exposed. If your dental nurses are all casual with no formal engagement, that’s a liability question too.
Get your documentation in order before you start a sale process. It signals competence, and it shortens the timeline — which directly reduces the chance of a buyer going cold.
How to Actually Increase What Your Practice Is Worth
If you’re 18-24 months out from a sale, you have genuine options. Read more about how to increase business value before selling, but in the dental context, the highest-leverage moves are:
- Hire an associate and reduce your clinical hours. Even if it costs you in the short term, demonstrating that revenue continues without you is the single most powerful thing you can do for your multiple.
- Lock in your lease. A five-year option with a further five is far more attractive than a month-to-month. Talk to your landlord now.
- Systematise recalls. Get your active patient count and recall compliance rate to a point you can show a buyer without embarrassment.
- Clean up the financials. Stop running everything through the practice. Run three clean years. Buyers work from three-year averages, so every messy year costs you.
Get a Sense of the Number
If you’re trying to figure out what your practice might be worth before you’ve had any formal conversations, our valuation calculator will give you a rough indicative range based on your revenue, margin, and practice structure.
For a more detailed conversation — particularly if you’re approaching retirement or thinking about bringing in an associate as a precursor to an eventual sale — contact us directly. We work with practice owners across Perth, Sydney, Melbourne, and Brisbane, and we’ll tell you straight what you’ve built and what it’s likely to fetch.
Note: The articles how-much-is-my-healthcare-business-worth and small-business-valuation-methods-australia may benefit from adding a link to this article where dental practices are mentioned.