S-Corp Owners: Your Salary Is a Tax Decision (And Most Get It Wrong)

The S-corporation’s core tax advantage is simple: owner profit that flows through as a distribution avoids the 15.3% self-employment/payroll tax that a sole proprietor pays on everything. The catch is equally simple: the IRS requires owner-employees to first pay themselves a reasonable salary through payroll before taking distributions.

That word — reasonable — is where most owners go wrong, in one of two directions.

Too low: the audit magnet

An S-corp showing $300,000 of profit and a $30,000 owner salary is a pattern the IRS specifically screens for. Reclassification cases are among the most reliably won by the government: when distributions are recharacterized as wages, you owe the back payroll taxes plus penalties and interest — and you’ve spent money on representation to get there.

There is no official safe-harbor percentage. The “60/40 rule” you’ll read on forums is folklore, not law.

Too high: the silent overpayment

The opposite error gets no press because no one audits you for it — you just quietly overpay. An owner taking a $250,000 salary when a defensible study supports $150,000 is voluntarily paying Medicare tax (and potentially the 0.9% additional Medicare tax) on $100,000 a year, every year. Over a decade, that’s real money donated for no benefit.

Salary also interacts with the QBI deduction: pass-through owners generally get a 20% deduction on qualified business income, and wages you pay yourself reduce that income (while also feeding the W-2 wage limitation at higher incomes). The optimal salary threads several needles at once — payroll tax, QBI, retirement plan contribution room, and defensibility.

What “reasonable” actually means

The IRS and the courts look at factors like:

•             What you would have to pay someone else to do your job (market replacement cost)

•             Your training, experience, and hours worked

•             The company’s size, complexity, and revenue

•             How much of the profit comes from your labor vs. capital, equipment, or other employees’ work

•             Your compensation history and what comparable businesses pay

The practical translation: your salary should be documented — an actual written analysis using market data for your role, retained in your corporate records, dated before the year it covers.

Why it must be re-run — not set once

We regularly review returns where the owner’s salary hasn’t moved since the S election was filed, while profit doubled or tripled. A salary that was reasonable at $120K of profit is not automatically reasonable at $400K. Conversely, if you’ve stepped back from operations or hired a manager, your defensible number may have gone down.

The right cadence: re-test annually, in Q4, when there’s still time to run a payroll true-up before December 31. Payroll can’t be retroactively invented in March.

The year-end checklist

1.          Project current-year profit.

2.          Refresh the compensation study against market data.

3.          True up payroll before the final December run.

4.          Confirm the salary supports your retirement plan contribution target (solo 401(k) limits key off W-2 wages).

5.          Document everything.

Romanchuk CPA LLC advises S-corporation owners on compensation, entity strategy, and year-end planning. If your salary was set once and forgotten, book a strategy session at rfg.tax before year-end — this is one of the highest-ROI conversations in tax.

This article is general information, not tax advice for your specific situation.