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Reasonable Salary Audit: S Corp Owners’ Memo for 3 IRS Approaches

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The IRS evaluates owner salaries under a facts-and-circumstances standard, and when an S corporation’s wages look too low next to its distributions, examiners can recharacterize distributions as wages. The defensible position is a market-based salary backed by contemporaneous proof. The single most useful step you can take this week is drafting a dated reasonable compensation memo that maps your duties to occupation benchmarks and records your hours.

TL;DR:

  • The IRS has no fixed salary to distribution ratio; it weighs duties, hours, comparable market pay, company profits, and compensation practices together.
  • Map duties to a Standard Occupational Classification code and use dated Bureau of Labor Statistics wage tables for your region; private surveys are secondary support.
  • Reconcile the salary with company revenue and cash flow, and test whether substantial profits leave a reasonable return for investors.
  • Update a signed compensation memo annually before payroll decisions, retaining benchmark dates, duty records, payroll documents, and board approval.
  • If the IRS reclassifies distributions as wages, the corporation and shareholder may owe employment taxes, penalties, interest, reduced qualified business income deductions, and state taxes.
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Table of Contents

How the IRS approaches a reasonable compensation audit

Reasonable compensation issues usually surface when an S corporation reports a shareholder-officer salary that looks disproportionately small compared to distributions, net income, or industry norms. Once flagged, the case often routes to an IRS valuation specialist rather than a general revenue agent, because the Reasonable Compensation Job Aid for IRS Valuation Professionals treats this as a valuation question, not a simple math check.

That job aid outlines three valuation approaches examiners can use: the market approach, which compares your pay to similar roles; the income approach, sometimes called the independent-investor test; and the cost approach, which estimates what it would cost to replace your services with outside labor.

During an exam, expect requests for:

  • Form 1120-S returns and accompanying K-1s for the years under review.
  • W-2 and payroll tax filings showing officer compensation history.
  • Corporate minutes or resolutions documenting compensation decisions.
  • Job descriptions, time logs, or other records of your actual duties.

These exams can stretch over several months once a valuation specialist is assigned, so building your file before the IRS asks for it saves time and reduces the appearance of after-the-fact justification.

The IRS and court factors for determining reasonable compensation

Courts and the IRS fact sheet on S corporation officer wages have repeatedly applied a set of factors to decide whether an officer’s pay reflects true compensation for services. None of these factors controls on its own, and examiners weigh them together against the full record.

  1. Your training, education, and professional experience relative to the role.
  2. The duties and responsibilities you actually perform for the business.
  3. The time and effort you devote to the company, including hours worked.
  4. The corporation’s dividend-paying history and pattern of distributions.
  5. Compensation paid to non-shareholder employees in comparable positions.
  6. What comparable businesses pay for similar services in the same market.
  7. Any written compensation agreements between you and the corporation.
  8. Whether pay was set using a consistent formula rather than an arbitrary figure.
  9. How the corporation treats the payment for tax and accounting purposes.

For service-based S corporations, where the owner’s personal labor generates most of the revenue, duties performed and comparable market pay tend to carry the most weight. A business selling your skill as an attorney, consultant, or physician has a harder time arguing that a low salary reflects fair value for your time.

The independent-investor test asks whether a hypothetical outside investor would accept the return left over after paying your salary. Courts tend to apply this angle when a company has strong profits and the question is whether the owner’s pay crowds out a reasonable return on investment, a scenario the Reasonable Compensation Job Aid identifies as one of the recognized valuation lenses.

How to calculate and document a defensible owner salary

Start by mapping your actual duties to a Standard Occupational Classification code, then pull wage data from the Bureau of Labor Statistics Occupational Employment and Wage Statistics program, known as OEWS. These tables break pay down by occupation, geographic area, and industry, which gives you a dated, citable starting point rather than a guess.

From there:

  • Adjust the base benchmark for your metro area, since OEWS data varies by region.
  • Factor in firm size and any premium skills or certifications that push pay above the median.
  • Use private compensation surveys only as secondary support, never as your primary source.
  • Reconcile the resulting salary figure against company revenue and cash flow to confirm it is sustainable.
  • Where profits are substantial, weigh the independent-investor angle to confirm a reasonable return remains for the business itself.

Pro Tip: Pull and save your OEWS table on the same day you finalize the salary decision, and note the retrieval date on the printout itself so the record shows the benchmark predates any audit.

Once the number is set, assemble the supporting file: a dated job description matching your SOC mapping, payroll records and W-2s showing the salary was actually paid, board minutes or a signed compensation agreement, and a final memo listing every source you relied on.

A workable memo template follows this order: an executive summary stating the salary and the conclusion it supports, a methodology section describing the valuation approach used, the underlying data including benchmark tables and dates, a short conclusion tying the data to the figure chosen, and a signature block with the date of approval. Keeping this document current each year, rather than reconstructing it after a notice arrives, is what separates a defensible position from a guess made under pressure.

Evidence groups supporting an annual salary memo

Consequences if the IRS recharacterizes distributions as wages

When an examiner concludes that distributions should have been wages, the corporation and shareholder both face new liabilities. The IRS guidance on S corporation officer compensation confirms that recharacterized amounts become subject to employment taxes, with back FICA and FUTA assessed against both the employer and employee shares.

Beyond the core tax bill, owners typically face:

  • Accuracy-related penalties when the IRS determines the original position lacked reasonable support.
  • Failure-to-deposit penalties tied to payroll taxes that should have been remitted earlier.
  • Interest accruing from the original due date forward, which compounds the longer a case drags on.
  • Reduced Qualified Business Income deduction room, since reclassifying distributions as wages shifts the income mix the deduction is calculated against.
  • Possible state-level payroll tax exposure, depending on your state’s conformity to federal wage rules.

If you receive a proposed adjustment, the practical response is to submit your compensation memo and supporting documentation, request reconsideration where the facts support it, and consider IRS voluntary disclosure for foreign assets professional representation before responding further. Our audit reconsideration guidance walks through those post-audit options in more detail.

Common myths and risky shortcuts to avoid

No IRS rule sets a fixed 60/40 or 70/30 split between salary and distributions, and treating either ratio as a safe harbor is a mistake. The Reasonable Compensation Job Aid never endorses a percentage formula, because reasonableness depends on your specific duties and market, not an arbitrary split.

  • The threshold for issuing a 1099 to nonemployees is separate from the rule for determining whether an owner’s salary is reasonable.
  • IRS research on S corporation underreporting incentives documents that shareholders who minimize wages relative to distributions have drawn sustained compliance attention, reinforcing why a documented, market-based number matters more than an internet rule of thumb.

Practitioner checklist: building an audit-ready reasonable compensation memo

A complete memo, the kind we prepare for clients, generally includes:

  1. An executive summary stating the conclusion and the salary figure.
  2. A duties-to-SOC mapping showing which occupation code best fits your role.
  3. Dated BLS OEWS tables with source URLs and retrieval dates attached.
  4. A reconciliation showing the salary against company revenue and net income.
  5. Copies of payroll records, W-2s, board minutes, and any compensation agreement.
  6. A signed conclusion page dated at the time of approval.

Pro Tip: If you have already received an IRS notice questioning your compensation, do not submit anything before a professional reviews the full file. A premature response can lock in positions that are hard to walk back.

Paying a CPA or tax resolution professional to prepare this memo, or to represent you once an exam is underway, changes how the conversation with the IRS unfolds. Representation means a licensed professional handles document requests and interviews, which keeps the exchange focused on facts and valuation rather than informal conversation that can be used against you later. Our IRS representation page describes how that process works.

Why salary setting should be treated as annual governance, not year-end tax engineering

Too many owners set a salary once and never revisit it, then scramble to justify it years later when a notice arrives. Treat compensation review as an annual governance task: pull fresh OEWS data, update the memo, and record board approval every year, ideally in the first quarter before payroll decisions are locked in. A five-year-old benchmark defends nothing.

— Joe

How Taxproblem (Joe Mastriano, CPA) helps S corp owners prepare or defend reasonable compensation

We prepare reasonable compensation memos, assemble the SOC-to-benchmark documentation IRS valuation specialists expect, and can provide representation if an exam is underway. If you want a second opinion on your current salary structure or need to respond to a notice, our services overview covers the full range of support, and you can schedule a consultation with Joe to review your specific numbers.

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We also offer a free audit-proofing checklist to help you spot gaps in your current documentation before the IRS does.

This article is general information, not a substitute for advice from a qualified financial advisor. Consult a qualified financial professional about your own circumstances before acting on anything here.

FAQ

What income level usually gets audited?

There is no published income threshold that triggers a reasonable compensation exam on its own. The IRS research on underreporting incentives shows that wide gaps between low wages and high distributions draw attention regardless of the dollar amount involved.

What is a reasonable salary according to the IRS?

The IRS defines reasonable compensation as the amount that fairly reflects the value of the services a shareholder-officer provides to the corporation, determined under a facts-and-circumstances standard rather than a fixed formula. The IRS guidance on S corporation officers ties this directly to market-based evidence of what the services are worth.

What is the $600 rule?

The $600 threshold is the reporting trigger for issuing a 1099 to a nonemployee for payments made during the year, a rule tied to Form 1120-S filing requirements and separate reporting obligations. It has no bearing on whether a shareholder-officer’s own salary is reasonable.

What is the 70/30 rule for S Corp?

The 70/30 split, where 70% of owner pay is treated as salary and 30% as distributions, is a popular rule of thumb but not an IRS standard. The Reasonable Compensation Job Aid relies on documented market, income, and cost approaches instead of any fixed ratio.

Sources

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