Most dentists choose an entity structure early, often before opening day, when the priority is getting the practice up and running rather than mapping out a long-term tax strategy. That decision usually gets made quickly, sometimes on the recommendation of whoever set up the practice at the time, and then it rarely gets revisited. Years later, the practice looks completely different. Production has grown, staff has expanded, and the owner may be thinking about a second location, an associate buy-in, or an eventual sale. The entity structure that made sense on day one may not be the best fit anymore.
Choosing between an S corporation and a C corporation is often reduced to a single talking point: double taxation. That concern is real, but it is rarely the only factor that should drive the decision, and for many dental practices it is not even the most important one.
Why This Decision Deserves a Second Look
When a practice is first established, the entity structure is usually chosen out of necessity rather than strategy. As the practice matures, grows profitable, adds associates, or starts thinking about a future sale or transition, the original structure deserves a fresh look. What worked well for a single owner in a small practice may not fit as naturally once the practice is generating stronger profits, carrying more overhead, or preparing for a transition.
The Double Taxation Question
The most common reason dental practice owners lean toward an S corporation is to avoid double taxation. In a C corporation, the entity itself pays tax on its profits, and shareholders may pay tax again if those profits are distributed as dividends. In an S corporation, income generally passes through to the owner and is taxed once on the owner’s personal return.
For a practice that distributes most of its profits to the owner each year, which describes the majority of dental practices, that difference matters and often makes the S corporation the more straightforward choice. But not every practice fits that pattern, particularly one that is reinvesting heavily in growth, adding locations, or building toward a larger transition.
Compensation Planning Looks Different in Each Structure
For a dentist operating as an S corporation, compensation planning usually centers on the balance between a reasonable salary and distributions, which affects payroll taxes and overall tax efficiency. In a C corporation, the owner is generally compensated as an employee and has a different relationship to the company’s retained earnings. Neither approach removes the need for planning. They simply create different considerations, and the right balance depends on how the practice is actually structured and how much of its profit the owner wants to draw out each year versus reinvest.
Reinvestment and Growth Change the Analysis
A practice that is aggressively reinvesting profits into new equipment, an additional location, or team growth may care less about how those earnings would be taxed if distributed immediately, since the cash is staying in the business rather than going to the owner. In that scenario, the entity conversation becomes less about avoiding double taxation on distributions and more about how the structure supports the practice’s growth plans and capital needs.
Employee Benefits Can Be Part of the Conversation
Entity structure can also affect how certain benefits are designed and delivered to staff. In some cases, a C corporation offers more flexibility around benefits such as health coverage or other employer-provided perks. For a practice owner trying to attract and retain hygienists, dental assistants, and associates in a competitive hiring environment, the ability to offer a stronger benefits package can carry real value, even if it is not the first thing that comes to mind when thinking about entity choice.
Practical Considerations for Dental Practice Owners
For most solo and small group practices, an S corporation remains the more common and often more efficient choice, largely because it fits the way most dentists take money out of the practice. But the decision becomes more nuanced for practices considering a DSO affiliation, planning a multi-location expansion, bringing in outside investors, or building toward a larger sale down the road. Ownership restrictions that work well for a closely held practice can create friction later if the practice wants to bring in additional owners or restructure ahead of a transition. Succession and exit planning should be part of this conversation as well, since how a practice is structured today can affect how smoothly it transfers to a new owner, an associate, or a family member later on. These are exactly the kinds of questions worth revisiting periodically rather than assuming the original structure still fits.
Final Thoughts
Choosing between an S corporation and a C corporation is not a decision to make once and forget. It is a business planning decision that touches how you pay yourself, how you grow the practice, how you offer benefits, and how you eventually transition ownership. As your practice evolves, it is worth revisiting whether your current structure still supports where you are headed, rather than assuming the choice made at startup is still the right one.
Contact Dental CPA to schedule a consultation and review whether your current entity structure still fits your practice’s goals.