Reviewed by Anil Rajput, CPA · Last reviewed July 2026
Quick answer: There is no IRS safe harbor and no percentage rule. Reasonable compensation is what you would have to pay someone else to do the work you do, judged on your duties, hours, experience, and what comparable drivers and managers earn. Set it from those facts, document how you got there, and pay it through payroll.
This guide is general information for owner-operators and small trucking businesses, not personalized tax, legal, or financial advice. Tax rules, rates, and thresholds change and depend on your situation. Verify current figures with the primary sources linked below and consult a qualified tax professional before acting.
This post assumes you have already elected S-corp treatment. If you are still deciding whether to elect, see LLC, sole proprietor, or S-corp for owner-operators. For the filing itself, see how to file Form 2553.
What does the IRS actually require?
The requirement is short and unhelpfully vague. An S corporation must pay reasonable compensation to a shareholder-employee for services performed before any distributions are made to that shareholder. That is the whole standard.
The IRS does not publish a number, a percentage, or a formula. It does not have a safe harbor. What it has is a body of guidance and case law describing the factors a court would weigh if your number were challenged, which means the standard is defensibility rather than compliance with a bright line.
For an owner-operator this matters more than it does for most small businesses, because the entire tax benefit of the election sits in the gap between your salary and your profit. Set the salary too low and you have created the exact fact pattern the IRS looks for.
Why is the 60/40 rule not a rule?
You will see it everywhere: pay yourself 60 percent as salary and take 40 percent as distributions, and you are safe. Some versions use 50/50 or 70/30. None of them appear in the Internal Revenue Code, the regulations, or IRS guidance.
The split originated as practitioner shorthand and got repeated until it sounded official. It fails in both directions:
- It can be too low. A driver netting $70,000 who pays himself 60 percent is at $42,000, which may sit below what the market pays a company driver doing the same lanes.
- It can be too high. A fleet owner netting $400,000 who no longer drives is not performing $240,000 of personal services, and the percentage would hand away the benefit for no reason.
The number should scale with the work you personally do, not with the profit. Those two things move independently, which is exactly why a percentage of profit is the wrong instrument.
What factors does the IRS weigh?
The factors that appear repeatedly in IRS guidance and in reasonable compensation case law, applied to a trucking operation:
- Duties and responsibilities. Are you driving, dispatching, selling, and doing the books, or only one of those?
- Time and effort devoted. Full-time over the road is a different number from a fleet owner working part-time from an office.
- Training and experience. Years holding a CDL, endorsements, safety record, specialized freight experience.
- What comparable businesses pay. Market wages for a driver or an operations manager doing the same work in your region.
- Payments to non-shareholder employees. If you pay a hired driver more than you pay yourself for the same work, that is a visible inconsistency.
- The relationship between distributions and salary. Large distributions alongside a token wage is the classic pattern that draws attention.
- What the business could pay. Compensation still has to be affordable out of what the operation actually earns.
How do you build a defensible number?
The goal is a file you could hand to an examiner that shows how you arrived at the figure. Work it in this order:
- Write down what you actually do. Split your year into roles: driving, dispatch and load booking, maintenance coordination, admin and books. Estimate hours in each.
- Price each role at market. Use Bureau of Labor Statistics wage data for heavy and tractor-trailer drivers and for transportation managers in your state, plus real job postings you can save.
- Add the roles together. A hybrid figure built from the parts is far easier to defend than a round number pulled from a percentage.
- Sanity check against profit. If the market figure exceeds what the business earned, the business cannot pay it, and that itself is a documented fact.
- Save the evidence and revisit annually. Keep the postings, the wage tables, and a one-page memo. Redo it each year, because your role changes as the operation grows.
This is the step almost nobody does, and it is the entire difference between a number you can defend and a number you guessed. Have your CPA review the memo before you set payroll.
What happens if you set it too low?
The IRS can recharacterize distributions as wages. That produces back employment taxes on the reclassified amount, plus penalties and interest, and it can reach multiple open years at once rather than just the year under examination.
Two aggravating patterns worth avoiding. Paying yourself nothing at all while taking distributions is the strongest possible signal, because zero compensation for a shareholder who plainly performs services is indefensible on its face. Taking money out of the business account without recording it as either wages or distributions is the second, since it undermines the separation the entity depends on.
For what raises examination odds more broadly in this industry, see what triggers an IRS audit for truck drivers.
What does the salary cost you beyond tax?
Two consequences that get left out of the savings calculation.
The first is Social Security. Your future benefit is based on your earnings record, and only the wage portion counts. A lower salary lowers what you eventually collect. For 2026 the Social Security wage base is $184,500, so wages above that stop building the Social Security portion of your record anyway, but most owner-operators are setting salaries well below that line.
The second is retirement capacity. Employer contributions to a Solo 401(k) or SEP-IRA are calculated off your W-2 wage once you are an S corporation, so a very low salary caps how much you can put away. See SEP-IRA or Solo 401(k) for owner-operators for how the limits interact.
Frequently asked questions
No. The IRS has not published a safe harbor, a percentage, or a formula. The standard is that compensation must be reasonable for the services performed, judged on facts and circumstances. Any source quoting a fixed split is describing practitioner habit, not a rule.
If there were genuinely no services performed and no distributions taken, zero can be supportable. The problem arises when you take distributions while reporting no wages. Document the year honestly and discuss it with your CPA before filing.
Yes, and usually in shape rather than just size. As you move from driving to managing, the comparable role shifts from a driver wage to an operations or general manager wage. Rebuild the number when your day job changes, not only when profit changes.
Through payroll. The wage portion requires withholding, a W-2, quarterly Form 941, and annual Form 940. Transfers that are never run through payroll are not wages, and the election does not hold up on informal transfers.
Bureau of Labor Statistics occupational wage data for heavy and tractor-trailer truck drivers, and for transportation, storage, and distribution managers, filtered to your state. Supplement it with dated screenshots of real job postings for the same work.
Yes. Benefits are calculated from your earnings record, and only wages count once you are an S corporation. Distributions build nothing. That is a real trade-off against the self-employment tax saving and should be weighed rather than ignored.
Set the number once, defend it every year
Reasonable compensation is a documentation problem as much as a tax one, and it is only defensible if payroll, distributions, and books all tell the same story. Ace Global gives owner-operators and small fleets a dedicated bookkeeper backed by CPAs who keeps distributions recorded properly, tracks your 1120-S deadline alongside your 2290 and IFTA quarters, and answers questions on WhatsApp or iMessage. Flat pricing, no long-term contracts, onboarding in about 15 minutes. Get started with Ace Global today.
Related reading
- How to file Form 2553 and the S-corp election deadline
- LLC, sole proprietor, or S-corp for owner-operators
- What triggers an IRS audit for truck drivers
Sources
- IRS - S Corporation Compensation and Medical Insurance Issues
- IRS - S Corporations
- Social Security Administration - Contribution and Benefit Base
- Bureau of Labor Statistics - Occupational Employment and Wage Statistics
This article is for informational purposes only and does not constitute tax, legal, or financial advice. Reasonable compensation depends entirely on your facts and there is no safe harbor. Verify current guidance at irs.gov and have a qualified tax professional review your compensation analysis before you set payroll.