The S-corporation election is one of the most widely used strategies for reducing self-employment tax exposure among profitable small business owners. Its effectiveness depends entirely on one figure: the owner's salary, and whether that figure would withstand IRS scrutiny.

The reasonable compensation standard

Distributions from an S-corp are not subject to payroll tax; salary is. The IRS understands the incentive to minimize salary and maximize distributions, which is precisely why "reasonable compensation" is a defined audit focus area. There is no statutory formula. The standard is what an unrelated party would be paid to perform the same role.

An owner drawing $180,000 in annual profit from a solo consulting practice while assigning himself a $30,000 salary presents an immediate red flag under examination. Upon audit, the IRS will reclassify a portion of distributions as wages, assess back payroll taxes, and apply penalties and interest retroactively.

Case illustration

A service-business client generating $180,000 in annual profit had been taking a $25,000 salary. A market-based compensation analysis, accounting for role, hours, and comparable positions, established a defensible figure closer to $75,000. The adjustment increased current payroll tax liability. It also eliminated a five-figure exposure that would otherwise have compounded with penalties in the event of examination.

Establishing a defensible figure

Compensation should be benchmarked against what the business would pay an unrelated party to perform the owner's actual functions, not set arbitrarily. A doctor-owner's salary, for example, should doctor-level compensation for clinical hours performed, separate from the return generated by ownership.

That determination should be clearly documented. What is comparable compensation data, hours worked, and role scope, rather than reconstructed after a notice arrives.

The figure should be reviewed annually. A salary appropriate at $80,000 in profit is rarely appropriate at $250,000.

The professional standard

The S-corp structure remains sound. Its integrity depends on the salary figure reflecting economic reality rather than tax minimization alone. An owner who has not conducted a formal reasonable compensation analysis is carrying undisclosed audit risk, regardless of how long the current salary figure has gone unchallenged.

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