Top Tax Strategies for Dermatologist / Plastic Surgeons
Defined Benefit / Cash Balance Plan
At $400,000+ income, a defined benefit or cash balance plan can shelter $200,000–$300,000+ per year from taxation — far more than the $70,000 limit of a 401(k). These plans are complex and require an actuary, but the tax savings justify the cost for high earners. A dermatologist earning $600,000 who contributes $250,000 to a cash balance plan reduces their taxable income to $350,000 — saving $92,500 in federal income tax at the 37% rate.
S-Corp Election for Practice Income
Dermatologists and plastic surgeons in private practice should evaluate S-Corp election to reduce self-employment tax on practice distributions. With $600,000 in practice income, a reasonable salary of $250,000 and $350,000 in distributions saves approximately $21,000/year in SE tax.
Real Estate Professional Status
Many high-earning physicians invest in real estate as a tax shelter. Real estate professional status (§469) allows the physician to deduct rental losses against ordinary income — but requires 750+ hours per year in real estate activities and more time in real estate than any other profession. For a full-time physician, this is extremely difficult to achieve. However, short-term rental properties (average rental period of 7 days or less) are not subject to the passive activity rules and can generate losses that offset ordinary income without the REP status requirement.
NIIT Planning
Dermatologists and plastic surgeons earning over $200,000 (single) or $250,000 (MFJ) pay the 3.8% Net Investment Income Tax on investment income. Strategies to reduce NIIT: maximize retirement plan contributions (reduces MAGI), invest in tax-exempt municipal bonds (interest is excluded from NIIT), and use tax-loss harvesting to offset capital gains.
More Tax Planning FAQs
How does the S-Corp election reduce self-employment tax?
An S-Corp election allows the owner to split income between a reasonable salary (subject to 15.3% FICA on the first $176,100 in 2026) and distributions (not subject to FICA). For a business owner with $200,000 in net profit paying an $80,000 salary, the annual SE tax savings are approximately $15,500–$18,500. The S-Corp must file Form 2553 within 75 days of formation.
What is the Section 199A QBI deduction and how does it apply?
The §199A deduction allows pass-through business owners to deduct up to 23% of qualified business income (QBI) from taxable income (increased from 20% under OBBBA). For taxpayers above $403,500 (MFJ) in 2026, the deduction is limited to the greater of 50% of W-2 wages or 25% of W-2 wages plus 2.5% of qualified property. Specified Service Trades or Businesses (SSTBs) phase out above this threshold.
What retirement plan options are available for self-employed professionals?
Self-employed professionals can establish a Solo 401(k) (up to $70,000 in 2026), a SEP-IRA (25% of net self-employment income up to $70,000), a SIMPLE IRA ($16,500 + $3,500 catch-up), or a Defined Benefit Plan (up to $280,000+ depending on age). The Solo 401(k) is the best option for most self-employed professionals because it allows the highest contributions relative to income.
How does the home office deduction work for self-employed professionals?
Self-employed professionals who use a dedicated home office space exclusively and regularly for business qualify for the home office deduction under §280A. The deduction is calculated as a percentage of home expenses (mortgage interest, utilities, insurance, depreciation) equal to the office square footage divided by total home square footage. The simplified method allows $5/sq ft up to 300 sq ft ($1,500 maximum).
What vehicle deductions are available for self-employed professionals?
Self-employed professionals can deduct vehicle expenses using either the standard mileage rate (70 cents/mile in 2026) or actual expenses. Vehicles with a GVWR over 6,000 lbs qualify for §179 expensing (up to $30,500 for heavy SUVs) and bonus depreciation without luxury auto limits. A mileage log must be maintained for either method. The vehicle must be used more than 50% for business to qualify for accelerated depreciation.
What is the Augusta Rule and how can it benefit business owners?
The Augusta Rule (§280A(g)) allows homeowners to rent their primary or secondary residence to their business for up to 14 days per year. The rental income is completely tax-free to the homeowner, and the business deducts the rent as a business expense. At $2,000–$3,000/day for 14 days, this strategy generates $28,000–$42,000 of tax-free income while the business deducts the same amount.
How does cost segregation apply to business owners who own real estate?
Cost segregation reclassifies building components into shorter depreciation categories eligible for bonus depreciation. For a $1M commercial property, cost segregation typically identifies $150,000–$250,000 of accelerated depreciation, generating $60,000–$100,000 in first-year deductions at the 40% bonus depreciation rate in 2026. A cost segregation study costs $5,000–$15,000 and typically has a 10:1+ ROI.
What is the difference between a sole proprietor and an S-Corp for tax purposes?
A sole proprietor pays self-employment tax (15.3%) on all net profit. An S-Corp owner pays FICA only on their reasonable salary, saving SE tax on distributions. For a business with $200,000 in net profit, the S-Corp saves $15,000–$20,000/year in SE tax. The S-Corp has additional costs (payroll, bookkeeping, tax preparation) of $2,000–$4,000/year, making the break-even point approximately $40,000–$50,000 in net profit.
How should a self-employed professional handle estimated tax payments?
Self-employed professionals must make quarterly estimated tax payments by April 15, June 15, September 15, and January 15. The safe harbor is 100% of prior year tax (110% if prior year AGI exceeded $150,000). Failure to pay sufficient estimated taxes results in an underpayment penalty under §6654. S-Corp owners should adjust their payroll withholding to cover their estimated tax liability.
What business expenses are deductible for self-employed professionals?
Ordinary and necessary business expenses under §162 include: professional licenses and continuing education, professional liability insurance, office supplies and equipment, software subscriptions, marketing and advertising, professional association dues, business travel (flights, hotels, 50% of meals), and home office expenses. Personal expenses are not deductible even if they have some business connection.
What is the self-employed health insurance deduction?
Self-employed professionals can deduct 100% of health insurance premiums (for themselves, their spouse, and dependents) as an above-the-line deduction under §162(l). This deduction reduces AGI and is available even if the taxpayer does not itemize. The deduction is not available if the taxpayer is eligible for employer-sponsored health insurance through a spouse’s employer. S-Corp owners must include premiums in W-2 wages before claiming the deduction.
How does the net investment income tax (NIIT) affect self-employed professionals?
The 3.8% NIIT applies to net investment income (interest, dividends, capital gains, rental income, passive business income) for taxpayers with MAGI above $200,000 (single) or $250,000 (MFJ). Active business income and wages are not subject to the NIIT. Self-employed professionals who invest in rental properties or passive businesses should plan for the NIIT impact on their investment income.
