Ask ten S corp owners how they set their salary and several will name a ratio. Pay yourself half of profits. Pay yourself 60 percent and distribute 40. Pay yourself up to the Social Security wage base and stop. These shortcuts are repeated in forums, in blog posts, and sometimes across the table from a preparer. They share one characteristic: not one of them appears in any statute, regulation, revenue ruling, or court decision.
The authorities say there is no formula
The IRS states this directly, in its own guidance on S corporation officer wages:
There are no specific guidelines for reasonable compensation in the Code or the Regulations. The various courts that have ruled on this issue have based their determinations on the facts and circumstances of each case.
And the Treasury regulation that defines the standard points somewhere else entirely, away from your profit split and toward the labor market:
It is, in general, just to assume that reasonable and true compensation is only such amount as would ordinarily be paid for like services by like enterprises under like circumstances.
The regulation prices the services. The ratios price the profit. That is the structural defect in every percentage rule: your profit can double while your duties stay identical, and a market wage for your duties does not double with it. A ratio will overpay you in good years, underpay you in lean ones, and match the legal standard only by coincidence.
What courts do instead
When these disputes reach a courtroom, no ratio appears. In David E. Watson, P.C. v. United States, 668 F.3d 1008 (8th Cir. 2012), the courts recharacterized distributions as wages using evidence of what comparable accounting professionals earned, settling on $91,044 against the owner’s claimed $24,000. The Eighth Circuit’s standard was whether payments “were made as remuneration for services performed,” measured against the market. No split, no percentage.
A small Tax Court decision shows the mechanics even more concretely. In Sean McAlary Ltd, Inc. v. Commissioner, T.C. Summ. Op. 2013-62, the court priced a real estate broker’s services at an hourly market wage applied over a standard 2,080-hour year, arriving at $83,200 ($40 per hour). It rejected the IRS expert’s higher rate as unpersuasive on the comparables, but kept the method: market rate times a full-time year. One caveat belongs in any honest discussion of McAlary: it is a summary opinion, non-precedential by statute (IRC § 7463(b)), so it illustrates how a court reasons rather than binding anyone. What it illustrates is a court doing wage math from market data, not ratio math from profit.
The zero-salary variant fares worst of all. In Glass Blocks Unlimited v. Commissioner, T.C. Memo. 2013-180, the owner took distributions and no salary while running the business:
An employer cannot avoid Federal employment taxes by characterizing payments to its sole employee, officer, and shareholder as dividends, rather than wages, where such payments represent remuneration for services rendered.
Why the shortcuts persist
The ratios survive because they are easy and because they feel like compliance. A 50/50 split produces a number in ten seconds, involves no research, and sounds conservative. But under examination the question will not be “did you use a ratio?” It will be the question from the regulation: what would like enterprises pay for like services under like circumstances? A ratio has no answer to that question, because it never looked.
There is also a quieter cost that has nothing to do with audits. A ratio disconnected from market data can just as easily set your salary too high, overpaying employment tax year after year. The market standard cuts both ways, and so does getting it wrong.
The defensible alternative
The alternative is the one the authorities describe: identify what you actually do and for how many hours, find what the market pays for those services in your industry and at your scale, and document how the number was derived, at the time you set it. The regulation even specifies the timing: circumstances are measured “at the date when the contract for services was made, not those existing at the date when the contract is questioned” (Treas. Reg. § 1.162-7(b)(3)). A ratio cannot produce that file. Market data can.