CPA for Dentists: Tax Strategies for Dental Practices
Did You Know?
The average dental practice owner overpays $30,000 to $60,000 in taxes every year, usually because they're using a generalist accountant who doesn't understand dentistry.
Dental practices have unique financial characteristics: high equipment costs, complex compensation structures, associate buy-ins, and retirement planning needs that differ from most small businesses. A CPA who specializes in dental practices knows where the savings are.
In this guide, we'll cover the tax strategies that matter most for dentists, from entity structure and equipment deductions to retirement plans that can shelter six figures annually.
| Best Entity Structure | S-Corporation. Saves 15.3% self-employment tax on distributions above reasonable salary |
| Equipment Deductions | Section 179 lets you deduct up to $2,560,000 (2026) for chairs, imaging systems, and CAD/CAM in the year purchased |
| Top Retirement Move | Cash balance plan + 401(k) combo. Shelter $350,000+ per year tax-deferred |
| Most Missed Deduction | Continuing education, travel to dental conferences, and associated lodging/meals |
| Real Estate Strategy | Own your building through a separate LLC and lease it to the practice. Builds equity and generates deductions |
| Why Industry-Specific? | Dental-specific benchmarks for overhead, staff ratios, and collections let a CPA spot problems a generalist can't |
Entity Structure: The Biggest Tax Decision for Dentists
Most dentists start as sole proprietors or single-member LLCs. That's the most expensive structure to operate under, because you pay 15.3% self-employment tax on every dollar of profit.
The fix is straightforward: elect S-Corporation status.
With an S-Corp, you pay yourself a reasonable salary (subject to payroll taxes), then take the remaining profit as a distribution, which is exempt from self-employment tax.
The "reasonable salary" rule: The IRS requires S-Corp owners to pay themselves a salary that's consistent with what someone in their role would earn. For general dentists, $150,000 to $200,000 is typically defensible. For specialists (oral surgeons, orthodontists, periodontists), $200,000 to $300,000+ depending on the market. Going too low invites an audit.
Dental Equipment: Section 179 and Bonus Depreciation
Dental practices are equipment-intensive, and the tax code rewards that. Under Section 179, you can deduct the full purchase price of qualifying equipment in the year you buy it, up to $2,560,000 for 2026.
What qualifies:
- Dental chairs, operatory units, and cabinetry
- Digital X-ray and panoramic imaging systems
- CAD/CAM milling machines (CEREC, Planmeca)
- Cone beam CT (CBCT) scanners
- Intraoral scanners and 3D printers
- Sterilization equipment and autoclaves
- Practice management software and IT infrastructure
- Office furniture and waiting room buildout
Retirement Plans: Shelter $350,000+ Per Year
Retirement planning is where dental-specific CPAs deliver the most value. Dentists are high earners with a narrow window to build wealth, and the right plan combination can shelter massive amounts from current taxation.
| Plan Type | 2026 Limit | Best For |
|---|---|---|
| Solo 401(k) | $72,000 ($80,000 if 50+) | Solo or spouse-only practices |
| SEP IRA | $72,000 | Simple setup, but must cover all employees equally |
| Defined Benefit Plan | $290,000+ | High earners 45+ who want to catch up aggressively |
| Cash Balance Plan + 401(k) | $362,000+ | Practices with $500K+ net income, maximum tax shelter |
The cash balance plan + 401(k) combination is the gold standard for established dental practices. A cash balance plan is a type of defined benefit plan that allows dramatically higher contributions than a 401(k) alone, and the contributions are tax-deductible to the practice.
The catch: If you have employees, you'll need to make contributions for them too. A dental-specific CPA can model whether the tax savings from your contribution outweigh the cost of employee contributions. In most cases, it's not even close.
Compare your options in detail with our SEP IRA vs Solo 401(k) guide.
Own Your Building Through a Separate Entity
If you own (or plan to buy) your practice's office space, hold it in a separate LLC, not inside the dental practice entity.
Why this works:
- The LLC leases the building to your practice at fair market rent
- The practice deducts the rent as a business expense
- The LLC collects rental income, which can be offset by depreciation, mortgage interest, property taxes, and maintenance
- The real estate builds equity outside the practice, protecting it from malpractice claims or practice liabilities
- When you sell or retire, you can sell the practice and the building separately, potentially qualifying for more favorable capital gains treatment
This is one of the most effective long-term wealth-building strategies for dentists, and it's frequently overlooked by generalist accountants.
Commonly Missed Dentist Tax Deductions
Beyond equipment and retirement, dental practice owners frequently miss these deductions:
Continuing Education & Conferences
CE courses, ADA and state dental association conferences, travel, lodging, and 50% of meals while attending. All deductible. Many dentists forget to track these.
Hiring Family Members
Employing a spouse or children (age 7+) in the practice shifts income to lower tax brackets. A child under 18 employed by a sole proprietor parent is exempt from FICA entirely.
Vehicle & Home Office
If you drive between practice locations or to the hospital/surgery center, mileage is deductible. Dentists who handle admin work from home may qualify for the home office deduction.
Professional Fees & Insurance
Malpractice insurance, dental board licenses, DEA registration, ADA/AGD membership dues, professional liability coverage. All deductible business expenses.
Student Loan Interest
The standard $2,500 deduction phases out at higher incomes, but practice structure and retirement contributions can lower AGI enough to qualify. A CPA who understands dental economics will optimize for this.
FAQs: CPA for Dentists
Why do dentists need a specialized CPA instead of a general accountant?
When should a dentist switch from sole proprietor to S-Corp?
Can I deduct the cost of buying into a dental practice?
What's the best retirement plan for a dental practice with employees?
How much should a dental practice owner set aside for quarterly estimated taxes?
Why a dental practice is not a generic small business
Dental practices are not generic small businesses. The combination of high income, expensive equipment, complex partnership structures, and aggressive retirement planning opportunities means the difference between a generalist CPA and a dental-specific one is measured in tens of thousands of dollars per year.
If your current accountant isn't talking to you about S-Corp election, cash balance plans, Section 179 timing, and real estate entity structuring, you're leaving money on the table.
Ready for a Dental Practice Tax Review?
Whether you're an associate planning to buy in, a solo practitioner looking to optimize, or a multi-location owner scaling up, we work with dental practices at every stage.
Schedule a call with Hiltzik CPA today and find out how much your practice could save.
