S corporation income is not subject to self-employment tax. The profit that flows to you on a Schedule K-1 escapes the 15.3% self-employment tax that sole proprietors and partners pay on their net earnings. The catch is that if you work in the business, you have to pay yourself a reasonable salary first, and that salary is subject to FICA. Everything above the salary can then come out as a distribution free of payroll taxes.
That split is the entire tax advantage of the S corp structure, and it is also the piece the IRS watches most closely.
Why S Corp Profit Escapes Self-Employment Tax
An S corporation doesn’t pay federal income tax at the entity level. It files an informational return on Form 1120-S and issues each shareholder a Schedule K-1 showing their share of ordinary business income.1Internal Revenue Service. Shareholder’s Instructions for Schedule K-1 (Form 1120-S) You report that K-1 income on Schedule E of your Form 1040.
Here is the critical point. K-1 income from an S corporation is not classified as net earnings from self-employment. Compare that to a sole proprietor or a partner in a general partnership, where every dollar of net business income triggers self-employment tax. The S corp shareholder pays ordinary income tax on the K-1 amount and nothing else in payroll or self-employment tax on it.
That is the reason profitable owner-operated businesses elect S corp status in the first place.
The Salary You Have to Take First
You can’t simply zero out your salary and take everything as a distribution. Federal law treats any officer of a corporation who performs more than minor services as an employee for payroll tax purposes.2Office of the Law Revision Counsel. 26 U.S. Code 3121 – Definitions If you’re a shareholder actively running the business, you must receive W-2 wages before you take any distributions.3Internal Revenue Service. S Corporation Employees, Shareholders and Corporate Officers
Those wages carry the full FICA load. The corporation pays 6.2% Social Security and 1.45% Medicare as the employer, and the same amounts come out of your paycheck as the employee. Combined, that’s 15.3% on wages up to the Social Security wage base of $184,500 in 2026.4Internal Revenue Service. Topic No. 751 Social Security and Medicare Withholding Rates5Social Security Administration. Contribution and Benefit Base Above that base, the 12.4% Social Security piece stops, but the 2.9% Medicare piece keeps running with no cap. The S corp also owes federal unemployment tax on the first $7,000 of wages, an effective 0.6% for most employers after the state unemployment credit.6Internal Revenue Service. Topic No. 759, Form 940 – Employer’s Annual Federal Unemployment (FUTA) Tax Return
One narrow exception: a shareholder who performs no services or only minor services for the corporation is not treated as an employee and does not need to draw a salary.3Internal Revenue Service. S Corporation Employees, Shareholders and Corporate Officers That covers purely passive investors. If you’re running the company, it doesn’t cover you.
What “Reasonable Compensation” Actually Means
There is no formula. The IRS standard is what a comparable business would pay for comparable services under comparable circumstances.7Internal Revenue Service. Wage Compensation for S Corporation Officers The practical version of the question: what would your company have to pay someone on the open market to do what you actually do?
Factors the IRS weighs include your training and experience, the duties you perform, the time you devote to the business, the company’s gross receipts, and what comparable businesses pay non-owner employees in similar roles.8Internal Revenue Service. Reasonable Compensation Job Aid for IRS Valuation Professionals Document your reasoning while you’re setting the number, not after the audit letter arrives. Industry salary surveys, a written description of your duties and hours, and a formal employment agreement all help.
What Happens If the IRS Says Your Salary Is Too Low
The classic aggressive move is to pay yourself a $20,000 salary and take $200,000 in distributions from a business where you’re doing all the work. The IRS sees this pattern constantly, and it doesn’t just correct your future returns. It reclassifies past distributions as wages, and the consequences stack up:
- Back FICA taxes on every reclassified dollar, both the employer’s and the employee’s halves
- FUTA on the first $7,000 of the reclassified amount if not already covered
- Failure-to-withhold penalties for the income tax and FICA that should have come off the paycheck
- Interest running from the original due date of the taxes
The IRS fact sheet on officer compensation puts it plainly: S corporations should not try to avoid employment taxes by treating officer compensation as distributions, personal expense payments, or loans.7Internal Revenue Service. Wage Compensation for S Corporation Officers Courts have sided with the agency on this repeatedly.
The disproportion between your W-2 and your K-1 is what draws the eye. A sole shareholder doing all the work who reports $50,000 in wages and $300,000 in distributions is the profile the IRS looks for. The two numbers have to tell a consistent story about what you actually do.
Other Taxes That Can Still Reach S Corp Income
Escaping self-employment tax doesn’t mean escaping every payroll-adjacent tax. Two others can apply.
The Additional Medicare Tax of 0.9% applies to W-2 wages above $200,000 for single filers or $250,000 for joint filers.9Internal Revenue Service. Questions and Answers for the Additional Medicare Tax Only the employee side pays it. These thresholds aren’t indexed for inflation. It hits your salary, not your distributions.
The Net Investment Income Tax of 3.8% generally does not apply to S corp pass-through income if you materially participate in the business, because the IRS treats it as income from a trade or business in which you’re active.10Internal Revenue Service. Topic No. 559, Net Investment Income Tax But if you own shares and don’t materially participate, your K-1 income can be treated as passive activity income, and the 3.8% NIIT can apply on top of ordinary income tax. Passive shareholders need to price this in when weighing whether the S corp structure actually saves them anything.
The Social Security Tradeoff Worth Knowing
Minimizing your W-2 salary saves payroll taxes today. It also lowers your future Social Security benefits, because only W-2 wages count toward your Social Security earnings record. Distributions don’t. An owner who reports a $40,000 salary for twenty years while the market rate for their role is $120,000 will collect noticeably smaller monthly retirement checks. Over a career, the payroll tax savings may not close the gap. Worth modeling before you settle on a number that just barely clears the reasonable-compensation bar.