If you are an S-corporation shareholder-employee — a doctor, lawyer, consultant, real estate professional, dentist, contractor, or any other professional whose business pass-through profits flow through to your personal tax return — there is a single tax issue that has produced more six-figure IRS audit adjustments in the last decade than almost any other: reasonable compensation. The S-corp reasonable comp issue is one of the IRS’s most active enforcement targets, the math is brutal when you lose, and the planning to avoid losing is conceptually simple but rarely executed properly.
Here is the basic story. S-corporations don’t pay corporate-level federal income tax — the income passes through to shareholders and is taxed at the individual level. But there’s a critical asymmetry: wages paid to a shareholder-employee are subject to FICA and Medicare payroll taxes (currently 15.3% in total before considering the additional Medicare tax under IRC § 3101(b)(2)), while distributions of corporate profits to shareholders are not. Many S-corp owners noticed this asymmetry years ago and aggressively minimized their salary while taking the rest as distributions — saving thousands of dollars per year in payroll tax. The IRS noticed the same thing and has been auditing aggressively ever since.
This article walks through what reasonable compensation actually means under the law, the cases that have shaped the doctrine, what triggers IRS reasonable comp audits, what factors the IRS examines, what the math looks like when an audit goes against you, and the planning that protects S-corp owners from these adjustments. By the end, you should know whether you’re exposed and what to do about it.
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