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Why Tax Planning Matters for Physicians
A physician earning $400K per year in a high-tax state can pay $150K-$180K in combined federal, state, and self-employment taxes without any planning. With a comprehensive tax strategy, that same physician can legally reduce their tax burden by $30K-$80K annually. Over a 20-year career, the difference compounds to $1M-$3M+ in additional after-tax wealth.
The problem is not that physicians earn too much. The problem is that the tax code rewards business owners, real estate investors, and those who structure their affairs proactively — and most physicians default to W-2 employee status with zero planning. The tax code is not designed for high-earning employees. It is designed for people who actively participate in business and investment activities.
The Four Pillars of Physician Tax Planning
Every physician tax plan rests on four pillars: (1) entity structuring to minimize self-employment tax, (2) maximizing above-the-line deductions, (3) real estate strategies to generate paper losses against earned income, and (4) retirement plan stacking to shelter as much income as possible from current-year taxation. The rest of this guide breaks down each pillar.
The Cost of Waiting
Every year you delay implementing a tax plan is a year of savings you cannot recover. An S-Corp election cannot be applied retroactively. A cost segregation study only works from the year of purchase forward. Roth contributions during low-income residency years are gone once you start attending. The best strategies are time-sensitive.
Entity Election Strategy
If you earn any 1099 income — locum tenens, consulting, expert witness work, speaking fees, or independent practice income — your entity structure is the single highest-leverage tax decision you make. The default (sole proprietor or single-member LLC) subjects 100% of net income to the 15.3% self-employment tax. An S-Corp election splits that income into salary (taxed) and distributions (not subject to SE tax).
S-Corp: The Default for Most Physicians
For physicians with net 1099 income above $80K-$100K, the S-Corp is almost always the right choice. You form an LLC, elect S-Corp status by filing Form 2553, pay yourself a reasonable salary via W-2, and take remaining profits as shareholder distributions. A physician netting $350K who pays $200K in salary saves roughly $15K-$23K in SE tax annually — after accounting for payroll costs and additional tax prep fees.
C-Corp Considerations
A C-Corp is rarely optimal as a primary entity for physician income due to double taxation. However, it can be useful in specific scenarios: physician-owned medical device companies, research ventures, or situations where you want to retain earnings at the 21% corporate rate for reinvestment. Some physicians use a C-Corp alongside an S-Corp for fringe benefit planning (health insurance, disability premiums, educational assistance). This is an advanced strategy that requires careful CPA oversight.
When to Elect and How to Transition
File Form 2553 by March 15 of the tax year you want S-Corp treatment to begin. If you miss that deadline, you can file a late election under Rev. Proc. 2013-30 (reasonable cause required). Transitioning mid-career requires updating contracts, setting up payroll, opening a business bank account, and adjusting quarterly estimated tax payments. Your CPA should model the exact savings before you commit to ensure the administrative overhead is justified by the tax reduction.
Real Estate Tax Strategies
Real estate is the only asset class that lets physicians offset earned income (W-2 or 1099) with paper losses from depreciation. This is not a loophole — it is an intentional feature of the tax code designed to incentivize housing development and property investment. Two primary strategies apply to physicians.
The STR Loophole
The short-term rental loophole is the most accessible real estate strategy for busy physicians. Properties with an average guest stay of 7 days or less are not classified as rental activities under IRC Section 469 — they are treated as active businesses. If you materially participate (100+ hours, more than anyone else), losses from depreciation (accelerated via cost segregation) can offset your W-2 or 1099 income dollar for dollar. Your spouse can handle management while you practice medicine.
Real Estate Professional Status (REPS)
REPS requires 750+ hours per year in real property trades or businesses, and more time in real estate than in your primary profession. For practicing physicians, this is nearly impossible to achieve personally. However, a non-working or part-time-working spouse can qualify as a real estate professional, allowing rental losses to offset the household's W-2 income. Combine REPS with cost segregation to accelerate depreciation and generate six-figure paper losses in year one.
Cost Segregation: The Multiplier
A cost segregation study reclassifies building components (flooring, fixtures, landscaping, certain structural elements) from 27.5-year or 39-year property into 5, 7, or 15-year categories eligible for bonus depreciation. On a $500K property, a cost seg study might identify $150K-$200K in accelerable components, generating a $150K+ paper loss in year one. This loss, when combined with STR or REPS status, directly offsets your physician income.
Strategy Stack: STR + Cost Seg + S-Corp
The most tax-efficient physician we typically see combines an S-Corp for practice income ($20K-$40K SE tax savings), an STR with cost segregation ($50K-$100K in accelerated depreciation losses), and retirement stacking ($72K+ in plan contributions). Total annual tax reduction: $60K-$150K+.
Retirement Plan Stacking
Retirement plan contributions are the most straightforward way to reduce taxable income. For physicians with multiple income sources, you can stack multiple plans to shelter $100K-$300K+ per year.
The Stacking Framework
- Layer 1 — Employer 401(k): $24,500 employee deferral (2026), plus employer match. If you have W-2 employment, maximize this first.
- Layer 2 — Solo 401(k): For S-Corp or 1099 income. $24,500 employee + 25% of W-2 salary as employer contribution, up to $72,000 combined. You can have both an employer 401(k) and a Solo 401(k), but the $24,500 employee deferral limit is shared.
- Layer 3 — Cash Balance / Defined Benefit Plan: Allows $100K-$300K+ in annual contributions depending on age and income. Works alongside a 401(k). Best for physicians over 40 with consistent high income.
- Layer 4 — Backdoor Roth IRA: $7,500/year ($8,600 if 50+). Contribute to a traditional IRA, convert to Roth. Small amount but grows tax-free forever.
- Layer 5 — HSA: $4,400 individual / $8,750 family (2026). Triple tax advantage — deductible, grows tax-free, withdrawn tax-free for medical expenses. After 65, works like a traditional IRA for any purpose.
Example: Physician Age 45, $500K Income
A 45-year-old physician with $300K W-2 income and $200K 1099 consulting income could contribute $24,500 to employer 401(k) + employer match, $47,500 to Solo 401(k) employer contribution on S-Corp salary, $150,000 to a cash balance plan, $7,500 via backdoor Roth, and $8,750 to HSA. Total tax-advantaged savings: approximately $238,250 per year. At a 40%+ marginal rate, that is $90K+ in current-year tax savings.
Timing and Coordination
Retirement plan stacking requires careful coordination. The Solo 401(k) must be established by December 31 of the tax year (contributions can be made until the tax filing deadline). Cash balance plans require an actuary and must be established before year-end. Backdoor Roth conversions should be done promptly to minimize pro-rata tax issues. Work with a CPA who understands multi-plan coordination to avoid exceeding contribution limits or triggering prohibited transaction rules.
Build a Tax Plan That Matches Your Career
Whether you are in residency or peak earning years, we build physician-specific tax plans that reduce your lifetime tax burden by six or seven figures.
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