Dentists tend to experience tax changes differently from many other professionals. Your income often comes from multiple sources. You may be balancing W2 wages, 1099 income, practice ownership, real estate, and retirement planning all at once. Small changes in tax rules can ripple through your personal return and your practice in ways that are easy to miss if you are not looking closely.
The 2026 tax year is not about dramatic new laws, but it does mark a period of clarity. Several provisions that were once temporary are now permanent, and the IRS has made its expectations around documentation and compliance more explicit. For dentists, that combination creates an opportunity for better planning, but also leaves less room for shortcuts or assumptions.
Understanding the changes to dentists’ taxes and what has stayed the same will help you make smarter decisions throughout the year rather than reacting when tax season arrives.
Federal Income Tax Rates For Dentists In 2026
One of the biggest questions dentists had heading into 2026 was whether individual tax rates would rise. That uncertainty has largely been removed. The lower federal income tax brackets that have been in place in recent years are now permanent.
For dentists, this stability matters because it allows for more confident long-term planning. Decisions around compensation, retirement contributions, and timing of income no longer have to be rushed out of fear that rates will suddenly increase.
That said, stable rates do not mean stable tax bills. Many dentists still see higher taxes simply because income has grown, practice profitability has improved, or more income is flowing through pass-through entities. This makes proactive planning just as important, even without headline-grabbing tax hikes.
QBI Deduction Rules For Dentists And Income Thresholds In 2026
The 20% Qualified Business Income (QBI) deduction for eligible pass-through income is now permanent. This is a meaningful benefit for dentists who own practices structured as S corporations, partnerships, or sole proprietorships.
While many dentists are familiar with the QBI deduction, it is often misunderstood in practice. Dentistry is classified as a Specified Service Trade or Business (SSTB), which means eligibility depends heavily on taxable income levels.
For the 2025 tax year, the QBI deduction begins to phase out once taxable income exceeds approximately $191,950 for single filers and $383,900 for married couples filing jointly. Above those thresholds, the deduction is gradually reduced, and once income exceeds the upper phase-out range, the QBI deduction for SSTBs like dental practices is eliminated entirely.
The final 2026 income thresholds have not yet been released and will be adjusted for inflation later in the year. However, the structure of the rules is expected to remain the same. What changes from year to year is where those phase-out lines fall.
This is where many dentists run into trouble. A profitable year, an associate buy-in, or higher owner compensation can quietly push household income into the phase-out range. Once that happens, the QBI deduction does not simply shrink; it can disappear altogether.
For dentists near or above the threshold, planning becomes critical. Owner salary levels in an S corporation, how income is split between spouses, and whether there are multiple businesses or sources of pass-through income can all affect whether any portion of the deduction is preserved.
Bonus Depreciation and Section 179 For Dental Equipment In 2026
Dentistry remains one of the most equipment-intensive professions, and the tax code continues to recognize that. Bonus depreciation is now permanent, allowing eligible assets to be fully expensed in the year they are placed in service.
Section 179 expensing also remains a powerful tool, particularly for practices making steady investments in technology, chairs, imaging equipment, and software.
For 2026, the planning opportunity lies in timing. When equipment is purchased and placed into service can make a significant difference. Buying late in the year but not installing or using the equipment until the following year may delay the deduction. Coordinating purchases with your CPA ensures the deduction lines up with the year you expect.
It is also important to look beyond the deduction itself. Accelerating depreciation can reduce current taxes, but it may affect future deductions and cash flow. A dental-focused advisor can help you balance immediate tax savings with longer-term planning.
Mileage Deduction Rules and Recordkeeping For Dentists
The business mileage rate has increased again for 2026, which benefits dentists who travel between offices, labs, continuing education events, or satellite locations.
While the higher rate is helpful, the IRS continues to scrutinize mileage deductions closely. The expectation for contemporaneous logs has not changed. Dentists should maintain records that show dates, destinations, business purpose, and miles driven, along with annual odometer readings.
We’ve covered the details in this blog: Can Dentists Deduct Their Car, Home Office or Travel?
For practice owners, reimbursing mileage through an accountable plan remains one of the cleanest ways to handle this deduction. The practice receives the deduction, and the reimbursement is not taxable income to you personally.
State And Local Tax Deduction Changes To Review
The state and local tax deduction cap has increased for several years, which may change whether itemizing makes sense for some dentists, particularly those in higher tax states.
This does not automatically mean everyone should itemize again. The decision depends on the full picture, including mortgage interest, charitable giving, and practice-related deductions.
What has changed in 2026 is that this decision deserves a fresh look. Dentists who have defaulted to the standard deduction for years may find that itemizing now produces a better result, especially when combined with strategic charitable giving or timing of tax payments.
Retirement Contribution Limits Continue To Rise
Retirement plan contribution limits have increased again for 2026, creating additional opportunities to reduce taxable income, while building long-term wealth.
For dentists, this is not just about maxing out a 401(k). Cash balance plans, profit sharing, and coordinated spousal strategies can significantly increase deductible contributions when structured properly.
The key is alignment.
Retirement planning should work in tandem with practice cash flow, future sale plans, and lifestyle goals. Simply contributing the maximum without considering these factors can create imbalances down the road.
How Core Advisors Helps Dentists Plan and Reduce Taxes
Tax planning for dentists is not about chasing every deduction. It is about creating a structure that supports your practice, your personal finances, and your long-term goals.
At Core Advisors, we work exclusively with dentists, combining CPA and CFP expertise to help you understand how personal taxes, practice finances, and long-term planning intersect. Whether you are growing a practice, preparing for a transition, or simply tired of tax surprises, we help you understand the trade-offs behind each option and choose an approach that fits your goals.
If you want to review how the 2026 tax rules apply to your situation, we invite you to schedule an introductory call with us.
A review early in the year often opens up options that are no longer available once December arrives.
