Most dentists do not sit down at tax time thinking about what they might be leaving out. They are usually thinking about everything that happened during the year. Production was up or down. Staffing felt harder than expected. Equipment decisions took longer than planned. Maybe a practice acquisition started to feel real, or at least closer than it was last year.
By the time tax season arrives, those decisions are already in the rearview mirror. The challenge is that many of them carry tax consequences that only show up if they are communicated clearly to your CPA. When details are missing, even a well prepared return can miss opportunities or create unnecessary risk.
For dentists, tax planning works best when it reflects how the practice actually operates, not just what shows up on a profit and loss statement. Below are five common things dentists forget to tell their CPA during tax time, and why each one matters more than most realize.
1. Changes In How You Earned Income During The Year
Income for dentists is rarely static. Even if total revenue looks similar year over year, the way that income is earned often shifts quietly in the background.
Associates may work at multiple practices and receive a mix of W-2 wages and 1099 income. Owners may take on consulting work, teach, or receive income from a second practice or a partnership interest. Some dentists reduce clinical days and increase management or ownership-related income without realizing how that changes their tax profile.
These details matter because different types of income are taxed differently. They also affect estimated tax payments, retirement contribution options, and the way deductions are applied. When a CPA only sees a single total income number, it becomes harder to optimize planning or explain variances from prior years.
If your work structure changed at all during the year, even temporarily, it is worth flagging. What feels like a small shift operationally can create a meaningful tax impact.
2. Equipment Purchases That Were Ordered But Not Fully In Use
Equipment is one of the most common planning areas for dental practices, and also one of the most misunderstood.
Many dentists assume that ordering equipment before year end automatically creates a deduction. In reality, the IRS focuses on when the equipment is placed in service. That means it must be installed, operational, and ready for use in the practice.
If a scanner arrives in December but installation, calibration, or training pushes actual use into January, the deduction generally follows the date it was placed in service. The same applies to chairs, imaging systems, and other large purchases.
Dentists often remember to tell their CPA what they bought, but forget to clarify when it was actually put into use. Without that context, depreciation elections like Section 179 or bonus depreciation can be applied incorrectly or conservatively by default.
Sharing timelines alongside purchase amounts allows your CPA to apply the rules accurately and avoid surprises later.
3. Owner Benefits And Personal Expenses That Run Through The Practice
Dental practices often pay for more than just clinical supplies and payroll. Health insurance, retirement contributions, continuing education, vehicles, phones, and professional dues frequently flow through the business.
What gets missed is how those expenses are treated and who they benefit. For example, health insurance for an S corporation owner must be handled differently from insurance for employees. Vehicle expenses require clarity around business versus personal use. Continuing education may be fully deductible, partially deductible, or subject to limitations depending on context.
When these expenses are not clearly explained, CPAs may err on the side of caution. That can mean lost deductions or inconsistent treatment year to year.
A good rule of thumb is to assume that if an expense benefits you personally as well as the practice, it deserves a short conversation. Clear classification now reduces audit risk and improves long term planning.
4. Staffing Changes And How People Were Paid
Staffing decisions tend to happen quickly, while tax consequences show up later.
Bonuses paid at year end, temporary help, contractor arrangements, and role changes all affect payroll taxes and reporting. Dentists often focus on whether people were paid, not how they were classified.
Misclassification of employees and contractors remains an area of IRS scrutiny, particularly in healthcare. Even well intentioned arrangements can create exposure if they are not documented and reported correctly.
It is also common for owners to forget to mention when family members work in the practice, when compensation changed mid year, or when benefits were added or removed. Each of these details influences reasonable compensation analysis and payroll tax planning.
Providing your CPA with a high-level summary of staffing changes helps align the tax return with reality and reduces the chance of issues later.
5. Plans To Buy, Sell, Or Transition Ownership
Tax returns often look backward, but planning should look forward.
Many dentists begin exploring practice acquisitions, buy-ins, or exits long before anything is finalized. Those early conversations still matter for tax planning. Entity structure, compensation strategy, and retained earnings can all affect future deal outcomes.
CPAs are often the last to hear about these plans, even though they play a central role in structuring them efficiently. When a CPA is unaware of a potential transaction, planning tends to default to short-term optimization rather than long-term alignment.
If ownership changes are even a possibility, it is worth mentioning during tax season. Early awareness creates more flexibility and fewer rushed decisions when timelines accelerate.
Work With A Dental CPA Who Understands The Full Picture
Most missed opportunities at tax time are not caused by complex rules. They are caused by missing context.
Dentists who treat tax time as a once-a-year compliance exercise often feel frustrated by outcomes that seem disconnected from their effort and growth. Tax planning works best when it is integrated with how the practice actually operates and where it is headed.
At Virjee Consulting, we work exclusively with dentists to connect tax strategy with real-world decisions, whether that involves equipment investments, associate compensation, or evaluating a future practice purchase. Our goal is not just to prepare accurate returns, but to help dentists understand how today’s choices shape tomorrow’s outcomes.
Dentists who treat tax time as a once-a-year compliance exercise often feel frustrated by outcomes that seem disconnected from their effort and growth. Tax planning works best when it is integrated with how the practice actually operates and where it is headed.
If you would like to review what your CPA should know before your next filing, or how to prepare more intentionally for the year ahead, we welcome the conversation. Starting earlier almost always leads to better planning and a far less stressful tax season.
