Reasonable compensation for an S corp is the salary a shareholder-employee must draw for the work they actually do for the company before any profits come out as distributions, and it has to reflect what an unrelated employer would pay a non-owner to do the same job under similar conditions.1Internal Revenue Service. S Corporation Compensation and Medical Insurance Issues Set it too low and the IRS can reclassify your distributions as wages, then bill you for back employment taxes, penalties, and interest.
Why the IRS Watches This Number
The whole issue exists because wages and distributions are taxed differently. Wages carry a combined 15.3% employment tax load: 6.2% Social Security and 1.45% Medicare on both the company side and the employee side.2Office of the Law Revision Counsel. 26 U.S. Code 3111 – Rate of Tax Social Security tax applies only up to $184,500 in wages for 2026.3Social Security Administration. Contribution and Benefit Base Wages above $200,000 also carry an extra 0.9% Medicare tax on the employee side. Distributions skip all of it.
So a shareholder taking $50,000 in salary and $150,000 in distributions pays far less in employment tax than one taking $150,000 in salary and $50,000 in distributions. That is exactly the arbitrage the IRS is looking for. Agency guidance states plainly that an S corporation must pay reasonable compensation for services before any non-wage distribution goes to a shareholder-employee. Zero salary with steady distributions is an automatic audit flag, even in a modestly profitable business.
How the IRS Judges Whether Your Salary Is Reasonable
There is no set formula. Examiners and courts weigh a group of factors together, and no single one decides the outcome.4Internal Revenue Service. Wage Compensation for S Corporation Officers
- Training and experience, including licenses and specialized education
- Duties and responsibilities, particularly management authority and complexity of the work
- Time and effort actually devoted to the business
- What comparable businesses pay for similar positions, which is usually the most influential factor
- Dividend history, especially a long pattern of distributions with little or no salary
- Payments to non-shareholder employees, since owners earning less than their staff looks wrong on its face
- Timing and manner of any bonuses
- Whether a written compensation agreement exists
- Whether a formula ties pay to something measurable like hours or revenue
The legal hook is the deduction rule for ordinary and necessary business expenses, which allows only a “reasonable allowance for salaries or other compensation for personal services actually rendered.”5Office of the Law Revision Counsel. 26 U.S.C. 162 – Trade or Business Expenses Revenue Ruling 74-44 gave the IRS authority to recharacterize distributions that were paid in place of reasonable wages as taxable wages.6Internal Revenue Service. INFO 2003-0026
Courts follow the same approach. In David E. Watson, P.C. v. United States, the Eighth Circuit upheld the IRS position that a $24,000 salary was unreasonably low for an experienced accountant whose S corporation received over $200,000 a year in distributions from a firm grossing more than $2 million. Expert testimony pegged reasonable compensation at roughly $91,044, and the court affirmed the employment tax assessment on that basis.7United States Court of Appeals for the Eighth Circuit. David E. Watson, P.C. v. United States The lesson: outside market evidence carries the day, and the number the owner picks for themselves gets no deference.
How to Set a Defensible Salary
Start with outside data on what the market pays for the work you actually do. The Bureau of Labor Statistics publishes wage figures by occupation, industry, geography, and ownership type through its Occupational Employment and Wage Statistics program.8U.S. Bureau of Labor Statistics. Occupational Employment and Wage Statistics (OEWS) Tables The Occupational Outlook Handbook adds median-pay context by role.9U.S. Bureau of Labor Statistics. Occupation Finder – Occupational Outlook Handbook Industry salary surveys can fill in gaps for narrower roles.
Match the data to what you do day to day, not to your corporate title. If you split your week between sales, bookkeeping, and running operations, your pay needs to reflect the blend, not just one slice. Location matters too: a figure that looks fine for a small market may fall short for a major metro.
The company’s finances matter as well. A struggling business can support a lower salary than a high-margin one, as long as the number still tracks the market value of the work. If cash flow is the reason for a lean salary, document it so an examiner has that context.
Independent Compensation Studies
A formal study from a professional valuation firm gives you stronger footing than data you compiled yourself. The IRS’s own guide for its valuation professionals notes that external comparison data “generally requires expert testimony explaining its relevance before it will be given weight by the courts,” and that the market approach — comparing your pay to comparable positions at comparable companies — is the method most often used.10Internal Revenue Service. Reasonable Compensation Job Aid for IRS Valuation Professionals A study typically runs $500 to $750 and can anchor your position if the salary is challenged.
The same guidance points out that the burden of proving compensation is reasonable sits with the taxpayer, not the IRS. The agency does not need to produce its own comparables to win, though courts give more weight to the side with the stronger market evidence.
Documenting the Decision
Good numbers still lose without paperwork. Three records do most of the work:
- Corporate minutes capturing the discussion, the data sources reviewed, the reasoning, and the date
- A signed board resolution authorizing the specific dollar amount and effective date
- A written employment agreement covering title, duties, salary, and benefits, updated when pay changes
Keep them together, on paper or digitally, so you can produce them quickly on request. The point is to show that the salary came out of a deliberate process, the kind an unrelated employer would follow.
What Happens If the IRS Reclassifies Your Distributions
When the IRS decides a salary was too low, it recharacterizes part of the distributions as wages. The corporation then owes the employer’s 6.2% Social Security tax (up to the 2026 wage base of $184,500) and 1.45% Medicare tax on the reclassified amount, and the employee’s matching share is assessed as well. Federal unemployment tax follows on the first $7,000 of reclassified wages at a net 0.6% rate for employers in states without a credit reduction.11Internal Revenue Service. 4.23.8 Determining Employment Tax Liability
Failure-to-deposit penalties then stack on top, scaled to how late the deposits were:12Internal Revenue Service. Failure to Deposit Penalty
- 1 to 5 days late: 2% of the unpaid deposit
- 6 to 15 days late: 5%
- More than 15 days late: 10%
- More than 10 days after the first IRS notice, or on demand: 15%
Interest runs from the date the tax should have been paid. For the first quarter of 2026, the underpayment rate is 7% annually, compounded daily.13Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 The rate is adjusted quarterly at the federal short-term rate plus three points.14Internal Revenue Service. Quarterly Interest Rates
The Officer’s Personal Exposure
An officer who controls payroll decisions can be held personally liable for unpaid employment taxes under the trust fund recovery penalty, which reaches any responsible person who willfully fails to collect or pay over the tax.15Office of the Law Revision Counsel. 26 U.S. Code 6672 – Failure to Collect and Pay Over Tax, or Attempt to Evade or Defeat Tax In a small S corporation with one owner running the show, that liability lands squarely on that person. The corporate form does not block it.
How Far Back the IRS Can Reach
The IRS normally has three years from the filing date (or the due date, whichever is later) to assess additional tax. Underreporting more than 25% of gross income extends that to six years. Fraud removes the limit entirely.16Internal Revenue Service. Time IRS Can Assess Tax A pattern of low wages over several years can generate compounding assessments across every open year, each with its own penalties and interest.
Two Related Rules That Trip Owners Up
Health Insurance for More-Than-2% Shareholders
Health insurance premiums the S corporation pays for a shareholder who owns more than 2% must be added to that shareholder-employee’s Box 1 wages on the W-2. They are not subject to Social Security, Medicare, or unemployment tax, so they do not appear in Boxes 3 or 5.1Internal Revenue Service. S Corporation Compensation and Medical Insurance Issues
To take the self-employed health insurance deduction on the personal return, the shareholder has to meet the conditions in IRS Notice 2008-1. The corporation must pay the premiums directly, or reimburse the shareholder after receiving proof of payment, and then report those amounts as wages on that year’s W-2. Skip any of those steps and the plan is not treated as established by the S corporation, and the deduction is lost.17Internal Revenue Service. Notice 2008-1 – Special Rules for Health Insurance Costs of 2-Percent Shareholder-Employees The deduction cannot exceed earned income from the business, and it is unavailable for any month the shareholder was eligible for subsidized coverage through another employer.
The QBI Deduction Interaction
Wages paid to a shareholder-employee as reasonable compensation do not count as qualified business income for the Section 199A deduction. Only the remaining pass-through income qualifies for the 20% deduction.18Internal Revenue Service. Qualified Business Income Deduction Every dollar you move from distributions to salary shrinks the QBI base and raises the employment tax bill.
For higher-income taxpayers above the phase-in thresholds, the deduction is capped at 50% of W-2 wages the business pays (or 25% of W-2 wages plus 2.5% of qualified business property). In that range, a higher salary can lift the cap faster than it cuts the QBI base, and the math sometimes favors paying more in wages. The right split depends on total taxable income, total W-2 wages in the business, and the value of qualified property, so it is worth running the numbers with a tax professional before setting the annual figure.