Buying a professional practice

The simple explanation

Someone spent years building a business; now they want to retire or move on. You buy it: the customer list, the phone number that rings, the trained staff, the cash flow that already exists. Day one revenue replaces the years a startup spends searching for it. The craft is in buying carefully: verifying the numbers, structuring the deal, and not overpaying for a business that depends entirely on its departing owner.

A simple hypothetical example

Illustrative — invented to show the shape of the Ownership & Acquisition pattern. No real company is named, and no figure in it is data. The real, sourced companies for this model are on the Examples tab.

A laundromat owner is retiring; the books show steady earnings, the machines are dated but functional, and there's no website or card payment. You buy at a fair multiple of verified earnings, part seller-financed. Modernizing payments and hours (changes the old owner never bothered with) lifts revenue while the loan amortizes. You bought cash flow and added the easy 20%.

A closer look at buying a professional practice

A professional practice is the most predictable small business there is, because the customers come back on a calendar. A dental patient is recalled every six months; a tax client reappears every spring; a physiotherapy patient books a course of six visits. You are not buying goodwill in the vague sense. You are buying a file of people with a scheduled reason to return, which is why lenders underwrite these deals more comfortably than almost any other acquisition.

The catch is that the file is attached to a person, and the person is leaving. Retention through transition is the entire deal, and it is the one variable the seller controls after they have your money. This is why practice purchases are structured with a transition period: the seller stays on for months, introduces you at the chair or in the meeting, and often carries a note or an earn-out tied to collections. Illustrative only: on a practice collecting $1M a year at a 25% owner margin, losing a fifth of the patients after handover cuts roughly $200K of collections, most of which was margin because the rent, the front desk and the equipment lease do not shrink. The profit is gone and the loan payment is not. Structure the price so that risk is shared, or do not do the deal.

Understand what is happening to the economics you are buying into. ADA Health Policy Institute data show revenue per general-practice dentist essentially flat while expenses per dentist rose, pushing inflation-adjusted median GP income down over the two pooled periods it compares. That is a margin squeeze, not a demand problem, and it changes what a fair multiple looks like. The counterweight in the same dataset is that dentists are retiring later, which means the supply of practices is coming steadily rather than in a flood, and rural practices showed stronger revenue per dentist than urban ones. The best-value deals sit where the fewest buyers are willing to move.

Know who you are bidding against and where they will not go. Support organizations and PE-backed platforms now buy the top of this market: Heartland Dental opened 75 new offices and took on 93 more by affiliation and acquisition in 2025 alone, and Citrin Cooperman went from about $500m of enterprise value to over $2bn in four years by buying regional accounting firms. They pay more for the same cash flow because they consolidate billing, HR and purchasing across dozens of sites, but they want practices big enough to matter, and in clinical fields most states still require the practice entity itself to be owned by a licensed practitioner, which is why a support organization buys the business side and contracts with a practitioner-owned entity rather than buying the practice outright. The individual buyer’s edge is the single-location practice with $600K to $1.5M of collections, an owner who wants their staff looked after, and no auction. And the entry ticket is honest: for clinical practices you generally have to hold the licence yourself, which makes this the one acquisition model where the credential comes before the capital. The offsetting gift is the market data above: with new CPA candidates down by a third in a single year and young dentists taking employment over ownership, the buyer who does show up is negotiating against a shrinking queue.

How money moves through this model

Who pays: The business's existing customers keep paying as before

What they pay for: Whatever the business already sells. You're buying the machine that sells it

What creates profit: Existing earnings, minus debt service, plus whatever your improvements add

• Customer
• Offer
• Buying
• Costs
• Profit

What makes this model hard

The honest difficulty: diligence is everything and everything can be misrepresented. Seller-prepared numbers flatter, customer relationships may live in the seller's handshake, and equipment hides deferred maintenance. And after closing, you must actually operate the thing. Buying a job by accident is the classic failure.