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Many dental practice owners work hard to grow revenue. However, despite strong collections, frustration often sets in when tax season arrives. Large tax bills can feel unexpected. In most cases, the problem is not income. Instead, it comes down to poor tax planning.
These financial mistakes quietly increase the tax burden year after year. They are not complex schemes or risky tactics. Rather, they are simple planning gaps that remain unaddressed. As a result, many dentists pay more in taxes than necessary without realizing it.
Dentists spend years mastering clinical skills. Meanwhile, financial education often receives little attention. As a result, many practice owners rely fully on their CPA without understanding what questions to ask.
Tax filing and tax planning are not the same. Filing reports on the past. Planning prepares for the future. When planning does not happen during the year, opportunities disappear. Once deadlines pass, those savings cannot be recovered.
Therefore, one of the biggest mistakes dentists make is assuming their tax return alone solves the problem.
One of the most costly mistakes dental practice owners make is missing the pass-through entity, or PTE, election. This oversight affects many S corporation dental practices, especially those operating in states with income tax.
The issue began after the Tax Cuts and Jobs Act limited the federal deduction for state taxes. As a result, dentists lost a valuable deduction. However, many states responded by allowing PTE payments, which restores that deduction at the federal level.
When handled correctly, PTE payments can create significant tax savings.
With a PTE election, the practice pays state income taxes at the entity level instead of the personal level. Because of this structure, the payment becomes deductible for federal tax purposes.
The result is simple:
For dentists in higher tax brackets, this difference often equals tens of thousands of dollars each year.
Many practice owners hesitate when they see large PTE payments leaving the business account. It feels like paying extra taxes. In reality, nothing extra is being paid.
The total state tax bill stays the same. The only difference is how and where the payment occurs. Instead of withholding more from payroll or making estimated payments personally, the practice sends the payment directly.
Because of this, confusion leads many dentists to skip the strategy entirely. Unfortunately, skipping it eliminates a powerful deduction.
Timing matters just as much as strategy. In some states, PTE payments must be made by specific deadlines. Missing those deadlines removes eligibility for the deduction.
Additionally, tax deductions apply only in the year cash leaves the account. Paying late shifts the deduction into the following year. That delay reduces the immediate benefit and disrupts planning.
Successful tax planning depends on knowing deadlines and acting before year-end. Waiting until the tax return is prepared is often too late.
Not all states treat PTE elections the same way. States without income tax do not benefit from this strategy. Meanwhile, high-tax states often provide the greatest advantage.
Because of this, dentists must understand their state’s rules. Assuming the strategy applies everywhere leads to mistakes. Clear communication with a knowledgeable CPA prevents missed opportunities.
Another common mistake is relying on overly cautious guidance. Many CPAs avoid strategies that require explanation or documentation. While caution has value, excessive caution can cost clients money.
There is a difference between tax avoidance and tax evasion. Proper planning stays within the law while using available rules correctly. Avoiding every gray area often results in unnecessary tax payments.
Dentists who understand this difference make better decisions and feel more confident discussing options.
Many dentists meet with their CPA only once a year. That meeting usually happens after the year ends. At that point, options are limited.
Effective tax planning requires ongoing review. Income changes, expenses fluctuate, and opportunities appear throughout the year. Without mid-year discussions, adjustments cannot be made in time.
Regular check-ins allow projections to guide decisions rather than reacting to outcomes.
Taxes do not exist in isolation. They connect directly to cash flow. When dentists focus only on reducing taxes without considering cash flow, problems arise.
Planning must account for:
Ignoring this connection leads to strategies that look good on paper but strain cash reserves.
These tax planning mistakes repeat because they feel invisible. No alarms sound when an election is missed. No warning appears when a deadline passes. The impact shows up months later as a larger tax bill.
Without education and engagement, dentists assume high taxes are unavoidable. In reality, many of these costs stem from preventable gaps.
Once dentists understand these planning basics, their perspective shifts. They ask better questions. They review projections. They engage earlier.
This awareness alone often leads to meaningful tax savings. While no strategy eliminates taxes, proper planning reduces friction and improves control.
Common tax planning mistakes cost dental practice owners thousands each year. Missing the PTE election, ignoring timing rules, and relying solely on year-end tax filing create unnecessary tax burdens. With proactive planning and informed decisions, these gaps can be closed.Want a deeper explanation of these tax planning mistakes and how to avoid them? Listen to Episode 139 of The Dental Boardroom Podcast: https://podcasts.apple.com/us/podcast/139-financial-mistakes-tax-planning-gaps-part-2/id1518344747?i=1000746265956
Wes knows what's best for dental practices. He's been doing this for a long time and he sees lots of practices. He can tell me how our practice is doing, and what we can do to increase our productivity. With past CPA's, there were no ideas. It was all coming from me, saying "I think I can do better, but I don't know how." I come in to meet with Wes and he says "You CAN do better, and I know how."
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When I go home from work, I don't spend a whole lot of time stressing about what my books look like, or how much I owe in taxes. By using PracticeCFO, the burden of keeping track of a lot of the big financial numbers and metrics are taken off my plate.
PracticeCFO helped me develop a plan for the future. I have colleagues that work with other accountants that don't have a plan - they just look at the numbers of the practice and that's it. There's no plan for 10, 20 years from now. But with PracticeCFO, you get that. PracticeCFO makes you feel like you're they're only client.
(In reference to his practice sale) What could've been super stressful, wasn't! When picking John and Wes, it was from word of mouth recommendations and other people's experiences from the past that really did it for me. And it turns out that those recommendations were right on the line.
Wes knows the business side of dentistry. His comprehensive plan will organize your personal and professional finances so you can focus on taking care of patients. Massive ROI.
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