What triggers an IRS audit for reasonable compensation?

Common triggers include zero or minimal salary with high distributions, salary below market minimums for the role performed, inconsistent year-to-year compensation, ratio-based formulas without market data support, and lack of written documentation.

How should I respond to an IRS audit notice about reasonable compensation?

Respond promptly, gather all documentation (job descriptions, market data, methodology memos, board minutes), present a coherent narrative explaining how the salary was determined, and consider engaging experienced representation for complex cases.

How to Defend Reasonable Compensation in an IRS Audit

An IRS audit focused on reasonable compensation can be time-consuming and costly. The good news: with proper preparation and documentation, most defensible positions prevail. This guide covers what examiners look for, how to avoid common pitfalls, and the steps to take once a notice arrives.

What the IRS Examines in Reasonable Compensation Audits

The IRS Small Business/Self-Employed division has increasingly targeted S-corporations where salary appears low relative to distributions. Under IRC §162, compensation must be "reasonable" for services actually rendered. Examiners will evaluate:

Salary-to-distribution ratio

A heavy skew toward distributions with minimal salary draws attention, especially when distributions exceed salary by a wide margin.

Duties and responsibilities

What functions does the shareholder perform? Management, sales, technical work, and administrative tasks all have different market rates.

Time and effort

Full-time involvement suggests higher compensation than part-time or passive roles.

Comparable market data

What would an unrelated third party pay for the same services? BLS wage data, industry surveys, and comparable company analysis matter.

Company size and profitability

Profitable companies with low shareholder salaries face closer scrutiny than marginal operations.

Common Red Flags That Trigger Scrutiny

Several patterns routinely trigger IRS examination or challenges:

Zero or nominal salary

Taking only distributions is a clear red flag. The IRS has won numerous cases where shareholders paid themselves nothing or minimal amounts.

Salary below market minimums

Paying $30,000 for what would be a $150,000 executive role invites reclassification of distributions as wages.

Inconsistent year-to-year compensation

Large swings without business justification (e.g., drops during audit years) suggest opportunistic behavior.

Ratio-based formulas

Some advisors use arbitrary ratios (e.g., 60/40 salary/distribution). The IRS evaluates reasonableness on substance, not formulas. Read more about the salary vs. distribution balance.

No written documentation

Clients who cannot produce a contemporaneous analysis of why their salary is reasonable are at a significant disadvantage.

Prevention is cheaper than defense

The average cost of defending a reasonable compensation audit—in professional fees, time, and potential penalties—far exceeds the cost of proactive documentation. Invest in proper documentation before you need it.

Building Documentation Before an Audit

The strongest defense is documentation prepared before an audit notice arrives. Contemporaneous records carry more weight than analyses created after the fact.

Written job description

Document the shareholder's duties, responsibilities, hours, and scope of authority. Update annually.

Market data analysis

Support the salary with BLS wage data, industry surveys, or comparable company benchmarks. Include geographic adjustments.

Methodology memo

A brief memo explaining how the salary was determined, which factors were considered, and why the amount is reasonable.

Board or management approval

Formal documentation that the compensation was reviewed and approved using a defensible process.

Factors the IRS and Courts Weigh

In reasonable compensation cases, courts have consistently applied a multi-factor analysis. No single factor is determinative, but the following carry significant weight:

Comparable compensation

External market data is among the most persuasive evidence. Independent third-party benchmarks are preferred.

Company performance

Compensation tracking profitability without a services-based rationale can be reclassified.

Distributions vs. salary

When distributions far exceed salary, examiners may treat excess as disguised wages.

Consistency

Compensation documented consistently over time is easier to defend than sudden changes.

Responding to an Audit Notice

If your client receives an audit notice related to reasonable compensation:

Respond promptly

Meet deadlines. Extensions may be available but should be requested in writing.

Gather documentation

Assemble job descriptions, market data, methodology memos, and board minutes. If documentation is missing, prepare a supplemental analysis with a clear explanation.

Present a coherent narrative

Explain how the salary was determined, why it is reasonable for the services performed, and how it compares to market rates.

Consider representation

For complex or high-stakes audits, engage a tax attorney or experienced CPA with audit defense experience.

Document the process

Keep records of all communications, document requests, and examiner feedback throughout the audit.

Reclassification consequences

The IRS may propose reclassifying a portion of distributions as wages. This triggers additional employment taxes, interest, and potentially penalties. A well-documented position can often reduce or eliminate the proposed adjustment during examination or later in appeals.

Key Takeaways

Start early — defending reasonable comp in an audit begins long before a notice arrives
Document proactively — job descriptions, market data, methodology, and approval
Review annually — consistent updates strengthen your position
Respond promptly — when a notice arrives, act quickly with organized documentation
Proactive beats reactive — clients who invest upfront are far better positioned