What "Reasonable Salary" Actually Means

Every S-corp owner eventually asks some version of how little they can pay themselves. That framing is where the trouble starts. Reasonable compensation is not a number you pick. It is a conclusion about what your work is worth, and if anyone ever questions it, you are the one who has to show the reasoning.

People want a percentage. There isn't one. What exists instead is a published set of factors, a line of Tax Court decisions applying them, and a way of writing your reasoning down that settles most of the argument before anyone else gets involved.

Why the IRS cares about this number at all

An S-corporation pays no federal income tax of its own. Profit lands on your 1040 either way, so your income tax is identical whether a dollar reaches you as salary or as a distribution. Payroll tax is not.

Wages carry Social Security tax at 12.4% up to the annual wage base and Medicare tax at 2.9% with no ceiling. Half is nominally the employee's and half the corporation's, but both halves come out of the same business. Distributions carry none of it. Every dollar you move from the salary line to the distribution line is a dollar Social Security and Medicare do not collect, which is why the IRS treats a thin salary as a payroll tax problem rather than an income tax problem.

That also means the savings are smaller at the top than the tables floating around online suggest. Once your W-2 wages clear the Social Security wage base, the only payroll tax left on the next dollar is the 2.9% Medicare piece, plus the 0.9% Additional Medicare Tax above $200,000 single or $250,000 married filing jointly. A high earner already past the wage base is not saving 15.3% on the gap.

The test underneath the factors

The factor list is the checklist. The analysis underneath it is simpler and more useful: look at where the corporation's gross receipts come from. Some of the money is produced by your personal services. Some is produced by employees who are not shareholders. Some is produced by capital, meaning equipment, real estate, or an owned book of business. The portion traceable to your own labor belongs on the wage line. Administrative work counts as labor too. Running the practice is not a passive activity.

That test cuts differently across two businesses that look identical on a tax return. A solo dermatologist generates essentially all of her collections with her own hands, so nearly all of the profit is compensation for services. A practice owner with four associate providers, a full front office, and a financed imaging suite generates a real share of collections from other people's work and from equipment, and that share is a return on the business rather than pay for her time. Same profit, different defensible salary.

Why 60/40 and the other internet rules are not law

The ratios circulating online (60/40, one-third of gross receipts, pay yourself half) appear nowhere in the Code, the regulations, or IRS guidance. The Tax Court has declined to accept mechanical percentage approaches to reasonable compensation. In David E. Watson, P.C. v. United States, an accountant who paid himself a small salary while taking substantial distributions out of a profitable firm had those distributions recharacterized as wages, and the Eighth Circuit affirmed.

Look at what a percentage rule actually does. It ties your pay to this year's profit, so a bad year makes your labor worth less and a windfall makes it worth more. Neither is true. It also hands the same answer to a solo dermatologist and to a twelve-person landscaping company earning identical profit, and those two owners are not owed the same wage. A formula that ignores every factor the IRS weighs is a guess with a decimal point on it.

What an exam does to a number that is too low

This usually arrives as an employment tax examination rather than a headline S-corp audit. Direct examination coverage of S-corp returns is low, and anyone telling you otherwise is selling something. The exposure is still real, because the adjustment is retroactive and it compounds.

If the salary is found unreasonably low, the IRS recharacterizes distributions as wages. That produces back Social Security and Medicare tax on both halves, failure-to-deposit and late-filing penalties on the Forms 941 that should have reported them, and interest compounded daily at the underpayment rate, which is the federal short-term rate plus three percentage points. Corrected W-2s and 941s follow, state unemployment wage bases move with them, and open years get examined together rather than one at a time. If a notice is already in your hands, that is IRS problem resolution work and the order of operations changes.

There is a second cost people miss. Section 199A can limit your qualified business income deduction by reference to the W-2 wages the business pays, once your income is inside the phase-in range. The salary you cut to save payroll tax can quietly cost you deduction. Pulling one lever in isolation gives the wrong answer; the two have to be worked together.

When you should not be having this conversation at all

If your S-corp's profit is modest, the question costs more to answer well than it saves. Payroll processing, a separate Form 1120-S, higher preparation fees, and state filing costs are real money, and the payroll tax you save is only 15.3% of whatever is left after a reasonable salary comes out. When a reasonable salary would absorb most of the profit, there is no gap to save on and the election was premature. I will tell you that rather than build you a compensation study you did not need.

Above that point, the work is setting the number, documenting it, and revisiting it when the business changes. I handle it inside small business accounting engagements, and it comes up constantly with physician and dental practice owners, where the comparable-compensation data is unusually good and the profit is unusually concentrated in one person's hands. If you want a read on your own number, the first conversation is free.