An S Corporation Can Save Taxes.
It Can Also Create New Ways to Get Them Wrong.
For the right self-employed physician, an S corporation can reduce employment taxes and create valuable planning opportunities. But the election also adds payroll, corporate tax filings, shareholder basis, reimbursement rules, retirement-plan coordination, and state-level complications.
The goal isn't simply to elect S corporation status. It's to determine whether the structure actually saves you money — and then manage it correctly every year.
Get the Free S Corp Analysis → Schedule an Introductory CallShould You Even Make the S Corporation Election?
An S corporation is not automatically better than a sole proprietorship. Payroll-tax savings need to be compared against reasonable compensation, payroll and tax-preparation costs, QBI, retirement contributions, state taxes, and the additional administrative burden.
See How an S Corp Could Affect Your Taxes
TaxSmart MD's sample S Corporation analysis shows how the election can affect payroll taxes, the Qualified Business Income deduction, retirement contributions, and your overall tax picture.
Enter your email to receive the sample analysis and see the type of comparison that should be performed before making an S election.
View the S Corp Sample Analysis →Reasonable Compensation Is the Center of the S Corp Strategy
S corporations can reduce employment taxes because business profit remaining after reasonable compensation generally isn't subject to Social Security and Medicare tax. But that does not mean the goal is to make your salary as low as possible.
Start With Market Wages
Compensation should reflect what physicians performing comparable work would reasonably be paid, adjusted for specialty, geography, hours, and responsibilities.
Account for Your Actual Work
Clinical work, administrative responsibilities, management duties, and whether you work full-time or part-time all matter. Reasonable compensation is a facts-and-circumstances analysis.
Document the Calculation
A random percentage of revenue is not a compensation methodology. Build and retain support for the salary you choose rather than trying to recreate it after an IRS examination.
Don't Wait Until December to Fix Payroll
Compensation planning works best when payroll is reviewed during the year. Waiting until year-end can create withholding problems, missed retirement-plan opportunities, and rushed corrections.
Owner Health Insurance and HSA Contributions Need Special Treatment
More-than-2% S corporation shareholders don't follow all of the same benefit rules as ordinary employees. Health insurance and HSA contributions need to be coordinated with payroll and the shareholder's individual return.
Payroll Reporting Matters
Proper treatment of shareholder health benefits affects W-2 reporting and whether the shareholder can receive the corresponding deduction on the individual tax return.
Compensation Planning Is More Than Salary
Certain shareholder health insurance and HSA amounts can increase compensation used for some tax and retirement-plan purposes without necessarily increasing Social Security and Medicare wages when structured correctly.
An Accountable Plan Is One of the Most Useful S Corp Tools
A sole proprietor can deduct qualifying business expenses directly on Schedule C. An S corporation shareholder has a different problem: expenses paid personally generally need to be reimbursed by the corporation if you want the corporation to capture the deduction cleanly.
Common Reimbursements
- Home-office expenses
- Business mileage on a personally owned vehicle
- Business use of cell phone and internet
- Supplies and other expenses accidentally paid personally
Why It Matters
Under a properly administered accountable plan, the corporation generally deducts the qualifying business expense while the reimbursement isn't treated as taxable compensation to the shareholder.
It also keeps the books cleaner by separating true distributions from reimbursements of business expenses.
Money in the Bank Doesn't Always Mean You Can Distribute It Tax-Free
S corporation shareholders have stock basis. Income can increase basis, while distributions, losses, and certain other items can reduce it. If distributions exceed available stock basis, part of the distribution can become taxable capital gain.
Cash and Basis Are Different
A corporation can have plenty of cash while the shareholder has relatively little stock basis. Financing equipment, accruing expenses, or making large deductible retirement contributions can create exactly that situation.
Review Basis Before Large Distributions
Basis is especially important before year-end distributions, large retirement contributions, debt-financed purchases, or unusual transactions. The tax consequences can be very different from what the bank balance suggests.
Debt Basis Has Its Own Rules
Personally lending money to your S corporation can create shareholder debt basis, but guaranteeing a corporate loan generally isn't the same thing. Basis planning should happen before losses or distributions create a problem.
Your Salary Affects How Much You Can Put Into Retirement
S corporation retirement contributions are based on W-2 compensation, not shareholder distributions. That means the salary that minimizes payroll tax is not necessarily the salary that produces the best overall tax result.
Solo 401(k)
Owner-employees can combine employee contributions with employer contributions, subject to annual limits and coordination with retirement plans from other jobs.
After-Tax Contributions
Some plan designs allow after-tax contributions that can fill unused 401(k) space and potentially support a Mega Backdoor Roth strategy.
Cash Balance Plans
High-income physicians with predictable cash flow may be able to combine a 401(k) with a cash balance plan to substantially increase tax-deferred retirement savings.
The Federal S Corp Savings Are Only Part of the Calculation
States don't all treat S corporations the same way. Entity taxes, franchise taxes, payroll rules, pass-through entity tax elections, registration requirements, and multi-state filing obligations can materially change the economics.
Pass-Through Entity Tax
In many states, an S corporation can elect to pay qualifying state income taxes at the entity level. For the right physician, that can create a valuable federal deduction — but the rules vary significantly from state to state.
Working in Multiple States
A physician who performs services in several states can create corporate registration, income-tax, payroll-withholding, and apportionment obligations in addition to the individual nonresident returns already associated with multi-state work.
S Corp Mistakes I See Physicians Make
Most S corporation problems aren't caused by the election itself. They happen because the corporation is treated like a Schedule C business after the election.
Keep Learning
S corporations touch almost every part of a physician's tax plan. These resources explore some of the decisions that deserve a closer look.
Is an S Corp Right for You?
Your S Corporation Should Be Part of Your Tax Plan — Not Just Another Tax Return
TaxSmart MD works with physicians to coordinate S corporation taxation, reasonable compensation, payroll, bookkeeping, shareholder reimbursements, retirement plans, state taxes, and year-round tax planning.
If you already have an S corporation — or you're considering making the election — we can help determine whether the structure fits your situation and make sure the pieces work together.
Schedule an Introductory Call →