The S corp payroll-tax advantage only works if your salary survives IRS scrutiny. Here's how 'reasonable compensation' is actually judged, three defensible ways to set your number, and the mistakes that trigger reclassification.
The entire S corporation tax advantage rests on one number: your salary. Pay yourself W-2 wages, and the profit left over passes through free of the 15.3% self-employment tax. Set that salary too low, though, and you're holding the single most audited number in small-business taxation.
Every dollar you shift from salary to distribution saves roughly 15.3 cents in payroll tax (up to the Social Security wage base, 2.9%–3.8% beyond it). Multiply by a few million S corps and you see why the IRS has litigated this for decades — and consistently won against owners who paid themselves token salaries. In the classic cases, courts reclassified distributions as wages and added back payroll taxes, penalties, and interest going back years.
There is no official formula. The standard is what you'd have to pay someone else to do what you do. Courts and the IRS weigh: your training and experience, duties and hours, the scale and complexity of the business, what comparable businesses pay for comparable roles, and how much of the profit comes from your personal effort versus capital, equipment, or employees.
Price your role like a hiring manager would: pull salary data for your job title, region, and hours from BLS data and salary surveys, adjust for part-time or multi-role reality, and document the sources. A written comp study in your file converts an audit argument into a five-minute conversation.
Most owners are part CEO, part technician, part bookkeeper, part salesperson. Weight each role: if 60% of your week is hands-on client work priced at $45/hour and 40% is admin at $25/hour, your blended market rate falls out of the math. This mirrors how the IRS's own reasonable-comp analyses are built.
Rules of thumb like a 60/40 or 50/50 salary-to-distribution split circulate everywhere. They are not law and no court has blessed them — but they're useful as a smell test. A business distributing $200,000 on a $30,000 salary fails any smell test; one paying $90,000 salary on $150,000 of profit rarely raises eyebrows.
Reasonable compensation is a defensible-documentation game. Pick a method, write it down, revisit it every December before the final payroll run. If your salary hasn't moved since you elected S status — or was never really 'set' at all — that's a one-meeting fix that removes your biggest audit exposure. It's exactly the kind of review we run for S corp owners every fall.
Talk it through with a licensed US tax professional — we'll tell you honestly whether it applies to your situation.
