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Tax Planning for Medical and Dental Practice Owners: Entity Structure, Retirement Plans, and Physician-Specific Strategies

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

Medical and dental practice owners are among the highest-earning small business owners in the country, with average net incomes of $250,000-$500,000+ depending on specialty. This high income creates both a larger tax bill and more opportunities for strategic tax planning. The central challenge is the SSTB classification under IRC 199A: because medical and dental services are specified service trades, the 20% QBI deduction phases out completely at $366,950 single / $633,900 MFJ (OBBBA thresholds plus $100,000 phase-out range), meaning most established physicians and dentists receive no QBI benefit. This makes other strategies more important: maximizing retirement plan contributions (defined benefit plans can shelter $200,000-$350,000 per year depending on age), optimizing the S-Corp salary split to minimize payroll taxes, and structuring practice expenses to capture every available deduction and credit. The combination of these strategies can reduce a physician’s effective tax rate from 40%+ to 30% or below, saving $50,000-$150,000 annually.

✓Key takeaway

Key tax considerations for medical/dental practices:

IssueImpact
SSTB classificationQBI deduction phases out above $266,950 (single) / $533,900 (MFJ)
S-Corp electionReduces SE/payroll tax on distributions above reasonable salary
Defined benefit planShelter $200,000-$350,000/year in tax-deferred contributions
401(k) + DB combinationTotal contributions can exceed $300,000/year
Section 105 HRATax-free health expense reimbursement for employees
R&D creditAvailable for clinical research, new treatment protocols
Entity restrictionsMany states require professional corporation (PC) or PLLC

Retirement plan comparison for high-income physicians:

Plan Type2025 Max ContributionBest For
Solo 401(k)$70,000 ($23,500 + 25% of net SE income)Solo practitioners
SEP-IRA$70,000 (25% of W-2 or net SE income)Simple setup, no employees
Defined benefit planUp to $280,000/year (actuarially determined)Physicians over 40 who want to maximize contributions
401(k) + Cash balance DB$70,000 + $200,000+ = $270,000+Maximum tax deferral for high-income practices
SIMPLE IRA$16,500Not ideal for high-income physicians (too low)

How can physicians and dentists minimize their tax bill?

What should practice owners check on gifts, meals and dues?

Gifts to business contacts are deductible only up to $25 per recipient per year, however much you spend. Business meals with them are 50% deductible when you or an employee are there and the meal isn’t lavish. Entertainment, like game tickets or golf, isn’t deductible at all, and neither are country club dues.

Staff food changed in 2026. For amounts paid after December 31, 2025, meals furnished to employees for the employer’s convenience and the cost of an on-premises eating facility aren’t deductible, with narrow exceptions. Medical and dental association dues are still generally deductible, because professional organizations aren’t treated as clubs.

How do medical practice equipment purchases affect taxes?

Medical equipment (imaging machines, dental chairs, surgical instruments) is depreciable property. Most equipment falls into the 5-year or 7-year MACRS recovery period. Section 179 allows immediate expensing up to $2,500,000 for 2025 ($2,560,000 for 2026), limited to taxable income from your active trades or businesses, and bonus depreciation (100% for property acquired after January 19, 2025) applies to any remaining cost and can create a loss. Leasing versus purchasing has different tax treatment: operating lease payments are fully deductible as rent expense, while a capital lease is treated as a purchase for depreciation purposes. For high-value equipment financed through loans, the interest is deductible separately from the depreciation on the equipment itself.

Related guides:

What are the tax advantages of a Health Savings Account for medical practice owners?

HSA contributions are tax-deductible (or pre-tax through payroll), grow tax-free through investments, and withdrawals for qualified medical expenses are tax-free, creating a triple tax advantage unavailable with any other account type. For 2025, self-only HSA contribution limits are $4,300 and family limits are $8,550, with an additional $1,000 catch-up contribution for those 55 and older. You must be enrolled in a high-deductible health plan (HDHP) with a minimum deductible of $1,650 for self-only or $3,300 for family coverage in 2025 to contribute to an HSA. Medical practice owners can offer HSAs alongside a group HDHP, making employer contributions that are deductible as a business expense and excluded from employees’ taxable income, while also funding their own HSA for personal tax savings.

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Cite this page

Yarik Yarosh, CPA. "Tax Planning for Medical and Dental Practice Owners: Entity Structure, Retirement Plans, and Physician-Specific Strategies." Blue Cloud CPA, September 5, 2026, updated September 23, 2026. https://bluecloudcpa.com/guides/small-business-tax-planning-medical-dental-practice-owners

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.