S-Corp for Physicians: When It Saves Money (and When It Doesn't)
"Should I set up an S-corp?" is one of the most common questions we hear from physicians with 1099 or side income. The honest answer: sometimes it's a smart move that saves real money — and sometimes it costs more than it saves. Here's how to tell the difference.
How an S-Corp Can Save on Taxes
When you earn self-employment income (1099, locum, moonlighting, or practice income), you pay self-employment tax on it. With an S-corp, you split your income into a reasonable salary (subject to payroll taxes) and remaining distributions (which generally aren't subject to self-employment tax). Done correctly, that split can reduce your overall tax on the same income.
The Catch: Reasonable Compensation
The savings hinge entirely on the word "reasonable." The IRS requires that your salary reflect the fair value of the work you do — you can't pay yourself an artificially low salary to dodge payroll tax. Set the salary too low and you invite trouble; set it appropriately and the strategy holds up. Getting this number right is where professional guidance matters most.
When an S-Corp Usually Makes Sense
You have meaningful, consistent 1099 or self-employment income (not just a small amount)
Your income is high enough that the distribution portion produces real savings after costs
You're prepared to run payroll and handle the added administration
When It Often Doesn't
Your self-employment income is modest — the payroll and filing costs can outweigh the benefit
Nearly all your income would need to be "reasonable salary" anyway
You're a W-2 employee with no meaningful side income
A Simple Way to Think About It
An S-corp is a tool, not a trophy. The right question isn't "can I set one up?" but "does the after-cost math actually work for my income and situation?" For many moonlighting and 1099 physicians it does — but only with the compensation piece handled correctly.
If you have 1099 or side income and you're not sure whether an S-corp is right for you, that's exactly the kind of question a short strategy conversation can answer. Tax Planning for Physicians
General educational information, not tax advice. Reasonable-compensation determinations and S-corp suitability depend on your specific facts — consult a qualified advisor.
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