Why "reasonable" is the most expensive word in S-Corp tax
You elected S-Corp status because someone told you it would save you payroll taxes. They were right — but only if you handle one rule correctly. Get it wrong and you'll owe the back FICA you tried to avoid, plus penalties, plus interest, and you'll spend a year of your life producing wage surveys for an IRS examiner.
The rule is "reasonable compensation." If you're an S-Corp shareholder who works in the business, you must pay yourself a salary through payroll before you take distributions. Not after. Not "next year when cash is better." Through W-2 payroll, with FICA withheld and a 941 filed every quarter. The amount has to be reasonable for what you actually do — meaning what someone would pay an arm's-length employee to do that exact job in your market.
There is no safe harbor. There is no IRS-approved percentage. There is only a body of court cases, a set of factors the IRS evaluates on audit, and your documentation. This article walks through what "reasonable" actually means, how to use Bureau of Labor Statistics data to land on a defensible number, and what the audit trigger zone looks like.
What "reasonable compensation" actually means
The IRS position is straightforward and has been litigated repeatedly: an S-Corp shareholder who performs services for the corporation is an employee, and the corporation must pay that employee reasonable compensation for those services before distributing remaining profit as a shareholder distribution. This rule exists because S-Corp distributions are not subject to FICA tax. Without the rule, every S-Corp owner would pay themselves $1 in salary and call the rest a distribution.
The Eighth Circuit decided the cornerstone case, Watson v. United States, in 2012. David Watson was an accountant. His S-Corp paid him a $24,000 salary while distributing roughly $204,000 in profits. The court agreed with the IRS that $24,000 was unreasonably low for an experienced accountant generating that much revenue, recharacterized $67,044 of the distributions as wages, and assessed back FICA, the failure-to-deposit penalty, and interest. The Supreme Court declined to hear the appeal.
Two follow-on cases show how the rule is applied. Sean McAlary Ltd, Inc. v. Commissioner (T.C. Summary Opinion 2013-62) involved a real estate broker whose corporation had set a $24,000 salary on paper but paid him no wages in 2006 while he took $240,000 out of the company. The IRS expert put reasonable compensation at $100,755; the Tax Court set it at $83,200 ($40 an hour) and treated that amount, not the full $240,000, as wages. Glass Blocks Unlimited v. Commissioner (T.C. Memo. 2013-180) is the case every owner needs to know: the company earned very little ($877 and $8,950 of ordinary business income in 2007 and 2008), paid its owner-president zero salary, and the Tax Court still treated all of the roughly $31,000 a year he took out as wages. Thin profit does not exempt you from reasonable compensation if you work in the business and take cash out.
The pattern across these cases: the IRS does not need to prove your number is wrong. It needs to show its number is more reasonable than yours. Whoever brought better data wins.
Four key factors the IRS weighs on audit
When an examiner challenges your salary, they apply a multi-factor test that has emerged from the case law and IRS training materials. There is no scoring formula — the examiner weighs the factors and reaches a conclusion. The IRS's own published list (Fact Sheet FS-2008-25) has nine factors: training and experience, duties and responsibilities, time and effort devoted, dividend history, payments to non-shareholder employees, timing and manner of bonuses, what comparable businesses pay, compensation agreements, and the use of a formula. The four below group the main ones. You need to be able to defend each one with documentation.
How to use BLS data to benchmark your salary
The Bureau of Labor Statistics publishes the Occupational Employment and Wage Statistics (OEWS) survey once a year (May reference period). It contains median, mean, and percentile wage data for roughly 830 occupations, broken out by state and metropolitan area. This is the single most important free resource for setting reasonable compensation, and it is the same dataset the IRS uses on audit.
Here is the workflow. Identify the SOC code (Standard Occupational Classification) that matches what you actually do. Pull the wage data for your specific metro area, not the national average. Adjust for your hours and experience level using the percentile data — the 25th, 50th (median), 75th, and 90th percentiles are all published. Document where the number came from.
- Define the role honestly. If you do graphic design for clients, you are a Graphic Designer (SOC 27-1024) for that work. If you also run sales, you are partly a Sales Manager (SOC 11-2022). Most owners blend two or three roles — weight them by hours.
- Look up the metro area, not the country. Go to bls.gov/oes and select your metropolitan statistical area. A graphic designer earning the median in Miami earns substantially less than the same role's median in San Francisco.
- Pick the percentile that matches your experience. The median (50th percentile) is the default for an experienced owner doing the work. A new entrant might justify the 25th percentile. A 20-year senior might justify the 75th. Going below the 25th without strong reason invites scrutiny.
- Convert annual to your actual hours. BLS data assumes full-time. If you work the business 25 hours a week, you can pro-rate down. Document the hours.
- Save the source. Print or PDF the BLS page with the date you pulled it. Save your hours log. Save your role description. This is your audit defense file.
Some practitioners use commercial reasonable compensation report services (RC Reports, RCReports, and similar) that produce a written report based on BLS data plus IRS-court-case methodology, typically for $200 to $500. The output is the same data you can pull free from BLS, packaged with a methodology narrative. For owners with complex multi-role situations or strong audit risk, the cost is reasonable insurance.
The audit trigger zone
The IRS does not publish its audit selection criteria, but the patterns from examination practice are clear. Three configurations attract attention faster than anything else.
Salary under 25% of total compensation when profits are strong. A 90/10 distribution-to-salary split on a profitable, services-driven business signals mischaracterization to an examiner.
Salary that ignores the BLS median for the role and metro. If a doctor pays himself $30,000 in a metro where the BLS median is $220,000, the gap itself is the audit case.
One more pattern worth flagging: salary that does not move year over year while profits grow significantly. If the business doubled in profit but salary stayed flat, the examiner reads that as proof you are using payroll as a tax-management lever rather than as compensation for services. Salaries should move with role, hours, and market — not with whatever number you decided three years ago.
Worked example — Sarah benchmarks her S-Corp salary
Sarah runs a Florida design studio. She elected S-Corp status last year. Her 2026 net business profit before owner compensation is projected at $130,000. She works the business full-time, roughly 45 hours a week, doing client design work, sales calls, and administration. She is the only employee. She needs a defensible salary number for 2026.
Sarah pulls the BLS OEWS data for her metro (Tampa-St. Petersburg-Clearwater). She identifies two SOC codes that map to her work: Graphic Designer (27-1024) for the production work, and roughly 20% of her time as Sales Manager (11-2022) for client acquisition. She uses median wages for both, since she has nine years of experience but is not a senior-level practitioner.
Sales Manager (Tampa metro, BLS median): ~$120,000 × 20% of hours = $24,000
Blended salary target: $70,400
Sarah's chosen 2026 W-2 salary: $72,000 (rounded; documented at the role-blend median)
Remaining for distribution: $130,000 − $72,000 − $5,508 employer FICA = $52,492 (before unemployment taxes and other payroll costs)
Salary as % of total comp: 55% — within the defensible range
Sarah's FICA on $72,000 of W-2 wages comes to $11,016 total — $5,508 withheld from her paycheck and $5,508 paid by the S-Corp as the employer match. The $52,492 distribution is not subject to FICA, which is the legitimate S-Corp benefit. If she had instead paid herself $30,000 and taken about $97,700 as a distribution, she would have saved $6,426 in FICA in the short term — and put a Watson-sized target on her return. The numbers in this example use illustrative BLS medians as of early 2026; pull current values from bls.gov for your own filing.
Documentation checklist — what to keep on file
If your salary is ever challenged, the case turns on what you can produce. Build the file before you set the salary, not after the audit letter arrives.
- Written job description. One page listing the duties you actually perform, the SOC codes that map to them, and a percentage breakdown of time spent on each.
- BLS source documents. PDF or screenshot of the BLS OEWS page for your metro and SOC code, with the date you pulled the data.
- Hours log or summary. Average hours per week worked in the business. A simple weekly time tracker is sufficient.
- Salary memorandum. A short internal document — one page is fine — explaining how you arrived at the number, signed and dated. This is what an examiner reads first.
- Annual review. Repeat the analysis every year. If your role changed, hours changed, or BLS data moved meaningfully, the salary should reflect that.
- Payroll records. Form 941 quarterly filings, W-2 at year end, and proof of timely federal tax deposits.
What happens if you got it wrong
If you've been running an S-Corp with no salary or an obviously low salary, you are not the first owner in that position. The path forward is to fix the current year before the IRS notices, not to wait. For the current year, set up payroll, run a defensible salary the rest of the year, and document the methodology. For prior years, the conversation gets harder — amending payroll returns triggers FICA and penalties, but doing it voluntarily is far cheaper than doing it under examination.
One important note: the failure-to-deposit penalty for unpaid payroll taxes ranges from 2% to 15% depending on how late the deposit is, plus interest, plus the failure-to-file 941 penalty if returns weren't filed at all. None of these are dischargeable in a casual conversation with the IRS. This is a situation where talking to a qualified tax professional before you take any visible action is worth the call.
Common mistakes
- Taking zero salary "until the business is bigger." The Glass Blocks case settled this — distributions trigger reasonable comp, regardless of profit.
- Using a flat 60/40 rule without market data. The 60/40 split is industry shorthand, not a defense. The IRS does not care what your accountant's rule of thumb is.
- Setting salary once and never revisiting. Salary should move with role, hours, and market. A flat salary across years of profit growth is its own audit signal.
- Ignoring multi-role reality. If you're producer, marketer, and CEO, your salary should reflect a blend of those rates — not just the cheapest one.
- Skipping documentation. The BLS data is free and public. Not pulling it before setting your salary is the difference between defending an audit and conceding it.
Frequently asked questions
There isn't one. The IRS has never published a safe harbor. The defensible answer is whatever the BLS median for your role and metro produces, adjusted for your hours and experience and documented before you set the salary.
Only if you also took zero distributions. The Glass Blocks Unlimited case held that distributions trigger reasonable compensation, even when the business earned very little profit. If you took any cash out as a shareholder, you need to have run payroll first.
No. The 60% salary, 40% distribution split is a practitioner shorthand, not a tax rule. It happens to land roughly inside the defensible range for many service businesses, which is why it's repeated. If you cite "60/40" in an audit, you'll be asked for the underlying market data — at which point the 60/40 reference doesn't matter anymore.
Not legally. BLS data is free and is the same source the IRS uses. A paid report from RC Reports or similar services packages BLS data with a written methodology, which can be useful for owners with complex multi-role situations or higher audit exposure. For a straightforward single-role business, a one-page memo with BLS source documents is sufficient.
Build the file before you set the salary. You need a written job description, the BLS OEWS source page for your metro and SOC code, an hours log, and a one-page memo explaining how you blended the rates and arrived at the number. Sign and date it. Repeat each year.
The corporation owes back FICA on the reclassified amount (15.3% — both employer and employee shares), plus failure-to-deposit penalties up to 15%, plus failure-to-file 941 penalties if quarterly returns weren't filed, plus interest. The shareholder-employee may also owe additional income tax depending on how the reclassification flows through. Watson's reclassification of $67,044 per year for two years generated a substantial liability — that's the order of magnitude.
No — overpaying yourself is a real cost. Every extra dollar of W-2 salary above what's reasonable means an extra 15.3 cents of FICA (up to the Social Security wage base of $184,500 in 2026), and reduces the qualified business income deduction available on the distribution side. The goal is "defensible," not "highest possible." Land at the median for your role-blend with documentation.
This article provides general information about US tax topics and is not a substitute for personalized advice from a qualified tax professional. Tax law changes frequently — verify current rules with a tax professional before filing or making decisions based on this content.
