If you own an S corporation and work in it, the IRS treats you as both an employee and a shareholder, and the S corp owner employment tax rules follow from that split. The wages the company pays you are subject to Social Security, Medicare, and federal unemployment taxes just like any other employee’s pay. Distributions of remaining profit are not. The catch is that you can’t skip the wage half: the salary has to be reasonable, and it has to come first.
Why a Reasonable Salary Comes Before Anything Else
Federal law treats a working shareholder as an employee, and the corporation is expected to put you on payroll and pay you a salary before distributing profits.1Internal Revenue Service. S Corporation Employees, Shareholders and Corporate Officers Under Revenue Ruling 74-44, the IRS can reclassify distributions as wages when they were clearly paid in place of a reasonable salary, which means back employment taxes, interest, and penalties.2Internal Revenue Service. INFO 2003-0026 – S Corporation Distributions as Wages
Reasonable compensation is what a comparable business would pay someone with your skills and responsibilities to do the same work. The IRS and courts weigh several factors:3Internal Revenue Service. Wage Compensation for S Corporation Officers
- Your training, education, and experience in the field.
- The duties you actually perform and hours you put in.
- What similar businesses in your industry and area pay for the same role.
- The company’s dividend history relative to what it pays you.
- Any written formula or agreement governing your pay.
- What non-shareholder employees earn for comparable work.
The dividend history factor is where most owners get caught. If the company earns $300,000, pays you $30,000, and distributes $250,000, the numbers speak for themselves. Document how you set your salary using market data and keep that documentation. It is your best defense in an audit.
What Employment Taxes Apply to Your S Corp Wages
Once you are on payroll, your salary triggers the same federal employment taxes any employee’s wages would. The corporation withholds your share and pays a matching employer share from corporate funds.
Social Security and Medicare
Social Security tax is 6.2% from you and 6.2% from the corporation, for a combined 12.4%. For 2026, this applies only to the first $184,500 of wages; earnings above that ceiling are not subject to Social Security tax.4Social Security Administration. Contribution and Benefit Base Medicare tax is 1.45% from each side, or 2.9% total, with no wage ceiling. Every dollar of salary is subject to it.5Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax
Additional Medicare Tax on Higher Wages
A separate 0.9% Additional Medicare Tax applies to wages above $200,000 for single filers and $250,000 for married filing jointly. The employee pays this alone; the corporation does not match it. Employers must start withholding the extra 0.9% once your wages cross $200,000 in a calendar year regardless of filing status, and any adjustment based on your actual filing status is settled on your individual return.6Internal Revenue Service. Topic No. 751 – Social Security and Medicare Withholding Rates
The maximum combined employee-side rate on wages above $200,000 but below the Social Security ceiling is 8.55%: 6.2% Social Security, 1.45% Medicare, and 0.9% Additional Medicare. The corporation pays 7.65% on top. These rates are set by statute and do not move year to year, though the Social Security wage base adjusts annually for inflation.
Federal Unemployment Tax
The corporation also owes federal unemployment tax on your wages. FUTA is 6.0% on the first $7,000 of wages per employee per year, but most employers get a credit of up to 5.4% for state unemployment taxes paid, dropping the effective federal rate to 0.6%.7Internal Revenue Service. Topic No. 759 – Form 940 Employer’s Annual Federal Unemployment (FUTA) Tax Return At the typical net rate, FUTA runs about $42 per shareholder-employee per year. Small in dollars, but missing the Form 940 filing can produce penalties that dwarf the tax itself.
State unemployment insurance is separate, with wage bases and rates that vary widely by state. New employers usually start at a default state rate.
How Distributions Differ From Wages
After the corporation pays you a reasonable salary and covers the associated employment taxes, remaining profit can be distributed. Those distributions are not wages, and they are not subject to Social Security, Medicare, or self-employment tax. That is the core tax advantage of the S corp compared to a sole proprietorship or general partnership, where all net business income is hit with the 15.3% self-employment tax.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
Distributions still flow through to your personal return as ordinary income via Schedule K-1 and are taxed at your individual income tax rate. The S corporation itself pays no entity-level federal income tax.9Internal Revenue Service. S Corporations The employment tax savings live entirely on the payroll-tax side of the line: FICA and FUTA on the salary, nothing on the distribution.
Estimated Tax Payments on Distributions
Since the corporation withholds income tax only on your wages, the income tax on your distributions is your responsibility to cover during the year. If you expect to owe $1,000 or more when you file, the IRS expects quarterly estimated payments using Form 1040-ES.10Internal Revenue Service. Estimated Taxes
You can generally avoid an underpayment penalty by paying at least 90% of your current-year tax or 100% of the prior year’s tax (whichever is smaller) through some combination of withholding and estimated payments. Some owners simplify by bumping up their W-2 withholding to cover the tax on distributions, which the IRS treats as paid evenly throughout the year no matter when it was actually withheld. If your income varies seasonally, you can annualize and make unequal quarterly payments.10Internal Revenue Service. Estimated Taxes
Two Payroll Interactions Owners Miss
Health Insurance Premiums for 2% Shareholders
If you own more than 2% of the stock and the corporation pays your health insurance, the premiums get unusual W-2 treatment. The corporation deducts the cost and adds the premiums to Box 1 of your W-2 as wages. Those added wages are not subject to Social Security, Medicare, or federal unemployment tax as long as the insurance is provided under a plan covering all employees or a class of employees.11Internal Revenue Service. S Corporation Compensation and Medical Insurance Issues
On your personal return, you can then claim an above-the-line deduction for the premium amount, effectively zeroing the income tax on those wages. The premiums must be paid by the corporation (or reimbursed to you and included on your W-2), and neither you nor your spouse can be eligible for a subsidized plan through another employer. The reporting must be precise: premiums go in Box 1 but must stay out of Boxes 3 and 5.11Internal Revenue Service. S Corporation Compensation and Medical Insurance Issues
Retirement Contributions Ride on W-2 Wages
Retirement plan contributions have to be based on your W-2 wages, not total corporate income. Distributions do not count as earned income for retirement plan purposes.12Internal Revenue Service. Retirement Plan FAQs Regarding Contributions – S Corporation If the S corp sponsors a 401(k), your elective deferrals (up to $24,500 for 2026) and any employer matching or profit-sharing contributions are all calculated against what appears on your W-2.13Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 This runs directly against the impulse to minimize salary for employment tax savings. Set the salary too low and you cap how much you can shelter for retirement.
Payroll Filings the Wages Create
Putting yourself on payroll generates its own compliance calendar. The corporation files Form 941 quarterly to report wages paid, taxes withheld, and the employer’s matching FICA share.14Internal Revenue Service. Instructions for Form 941 By January 31, the corporation must furnish each employee with a Form W-2 and file copies with the Social Security Administration.15Social Security Administration. Deadline Dates to File W-2s Form 940, the annual federal unemployment tax return, is generally due January 31 as well.7Internal Revenue Service. Topic No. 759 – Form 940 Employer’s Annual Federal Unemployment (FUTA) Tax Return
Miss any of these and the penalties add up quickly. The whole employment tax structure works in your favor only when the salary is defensible, the payroll filings are current, and the split between wages and distributions can survive a second look.