S-Corp salary vs distribution: the year-end tax call

Most S-Corp founders make the salary-versus-distribution decision once, early, on a bookkeeper's advice, and then never revisit it while the business grows underneath them. That is the problem. The split that made sense at $80K of profit becomes an audit flag at $400K, and the estimated-tax habits you never built quietly compound into a five-figure surprise every April. This post gives you the actual math, the real audit risk, and a December checklist to bring to your CPA before the year closes. A quick note on scope: most readers here are an LLC that elected S-Corp status, not a traditional S corporation, but the rules below apply the same way to both. If you are still weighing whether the S-election is right for you at all, start with our breakdown of LLC vs S-Corp tax for ecommerce and come back here once you have made that call.

Why the salary-vs-distribution split is a tax lever, not a preference

Here is the mechanic that makes this whole decision matter. W-2 wages are subject to FICA, which is 15.3% combined (12.4% Social Security plus 2.9% Medicare) up to the Social Security wage base. S-Corp distributions are subject to none of it. So every dollar you can legitimately move from the salary column to the distribution column saves you about 15.3 cents, right up until you hit the Social Security cap of $168,600 in 2024 (rising to $176,100 in 2025), above which only the 2.9% Medicare portion keeps applying.

That is the entire appeal of the S-election, and on a $200K profit it is real money. Run all $200K through payroll and you pay roughly $30,600 in FICA. Split it $100K salary and $100K distribution and you pay about $15,300. The chart below shows how total FICA scales with the split.

The temptation is obvious: push the salary as low as you can and let the rest flow as distribution. When I talk to founders running a business this size, that is almost always the instinct, and it is the instinct that gets them audited. The savings are legal only up to the point where the salary stops being reasonable. Below is the 2024-2025 rate reference so you can see exactly which dollars carry which tax.

Tax	Rate	Applies to	2024 wage base	2025 wage base
Social Security (employer)	6.2%	W-2 wages only	$168,600	$176,100
Social Security (employee)	6.2%	W-2 wages only	$168,600	$176,100
Medicare (employer)	1.45%	All wages	No limit	No limit
Medicare (employee)	1.45%	All wages	No limit	No limit
Additional Medicare Tax (employee)	0.9%	Wages + SE income above $200K single / $250K MFJ	N/A	N/A
Total FICA on wages (under SS cap)	15.3%	W-2 wages	|	|
S-Corp distributions	0%	Not subject to FICA or SE tax	|	|

Note the Additional Medicare Tax line. Once your combined wages and distributions clear $200,000 (single) or $250,000 (married filing jointly), an extra 0.9% applies on the wage portion above the threshold. At higher income levels that narrows the gap between the two treatments slightly, but it never closes it.

What "reasonable compensation" actually means, and what it doesn't

This is where most of the bad advice lives. The IRS requires that a shareholder-employee who performs services be paid reasonable compensation for those services before any profit is distributed. The authority is Rev. Rul. 74-44 and IRS Fact Sheet FS-2008-25, and the enforcement hook is IRC Section 7436. What none of those do is give you a number. There is no safe-harbor percentage anywhere in the tax code.

So the "60/40 rule" you have probably heard, 60% salary and 40% distributions, is not IRS guidance. Neither is any other clean fraction. FS-2008-25 lays out a facts-and-circumstances test built on factors like your training and experience, your duties and time devoted to the business, what comparable businesses pay for similar services, and your dividend history. The honest version of the rule is: pay yourself what you would have to pay someone else to do your job, and be able to prove it.

The pattern we see again and again is founders who set an "officer salary" number once and then let profit balloon around it. A founder pulling a flat $60K salary while the business throws off $500K in profit is not making a tax-planning decision, they are building an audit case against themselves. Practitioner guidance commonly puts active owner-operators in the 35-50% of net income range, but treat that as a starting sanity check, not a target. The right number depends entirely on what your role is actually worth.

Business type	Typical owner role	Reasonable salary guidance	Distribution potential	Key risk factor
Solo professional services (consultant, lawyer)	Primary revenue generator	High: often 80-100% of net income when solo	Low. Most profit is the owner's own labor	Low salary plus high distribution is the primary audit target
Product / ecommerce brand (owner-operator)	CEO and operator, but has staff	$80K-$150K by duties; 35-50% of net income is a common range	Higher. Non-owner staff generate some of the profit	Flat salary while profits grow is a red flag; document comparables
SaaS / software (technical founder)	Product, sales, and support	$100K-$180K, often the market rate for the role	Moderate. Investor-backed firms often pay market anyway	Under-paying in early growth years, then a year-end lump-sum bonus
Holding company / passive investor	Minimal active services	Little to none if genuinely passive	High. Passive income does not require compensation	Mixing active and passive work in one entity

The under-withholding trap: how the $15K to $40K surprise builds

Even owners who set a defensible salary get caught by the second half of this problem, and it has nothing to do with reasonable compensation. It is withholding. When you run W-2 payroll, FICA and income tax come out every pay period automatically. When you take a distribution, nothing is withheld. The money hits your account whole, which feels great in June and terrible in April.

Here is how the trap springs. An owner taking $150K in distributions across the year owes income tax on all of it, but if they never make a quarterly estimated payment, that liability just sits there accruing. At a rough 22% effective rate, the shortfall builds to about $33,000 by the time the year closes, and the IRS adds an underpayment penalty under IRC Section 6654 on each missed installment. The chart below traces that buildup.

The thing that makes this so common is that it is invisible until the bill arrives. When we've watched this play out with founders, the surprise is always the same size as the discipline they skipped. One founder we worked with had taken large draws all year against a fast-growing profit line and walked into the January CPA meeting expecting a refund. The actual number was a multi-million-dollar liability, because the draws had outrun both the payroll planning and the estimated payments for two years running. Nobody had done anything fraudulent. They had just never set up the machinery to send the government its share as they went.

And remember, the chart above is income tax only. If the same owner also under-salaried themselves, some of that $150K should have been wages, which layers roughly $15,300 of FICA on top of the income-tax gap. The two problems compound in the same December conversation.

What happens when the IRS audits your salary

If the IRS decides your salary was unreasonably low, it reclassifies the distributions as wages, and the bill stacks in layers. First the back FICA at 15.3% on the reclassified amount. Then a failure-to-deposit penalty under IRC Section 6656, which runs 2% to 15% of the unpaid payroll tax depending on how late it was. Then an accuracy-related penalty under IRC Section 6662, generally 20% of the understatement. Then interest, running from the original due dates, not the audit date. In willful non-payment cases the Trust Fund Recovery Penalty under IRC Section 6672 can reach 100% of the trust-fund portion of the payroll taxes.

Add it up and practitioners estimate the effective cost of a reclassification at 20-40%+ of the reclassified wages once penalties and interest stack. There is a second-order hit too: reclassifying distributions as wages lowers your net pass-through income, which shrinks the Section 199A QBI deduction you may have claimed, so the reclassification quietly raises your income tax as well as your payroll tax.

The enforcement environment has tightened. Practitioner reporting through 2024 describes the IRS using data-matching and advanced technology to flag pass-through entities where officer wages look low relative to distributions and profit, and reasonable compensation is named a high-priority focus for closely held S-Corps. The days when a $1 salary flew under the radar are over.

The S-election is a genuine tax advantage, but it is not a free one. You buy the FICA savings on the distribution side by paying, and documenting, a real salary on the wage side. Skip the documentation and you have not saved 15.3%, you have deferred a 20-40% bill to whenever the IRS gets around to you.

The December 31 checklist to bring to your CPA

Almost everything that fixes this has a hard year-end deadline, which is why December is the real decision point, not April. A catch-up payroll run has to post inside the tax year. The Q4 estimated payment is due January 15 but is cleaner if you handle it before the books close. And the documentation that defends your salary number has to exist before, not after, the IRS asks for it. Here is the list I hand founders to take into that call.

Action item	Why it matters	Deadline	Owner
Run YTD profit vs. YTD W-2 salary	Shows whether your salary looks unreasonably low against distributions taken	Dec 15	Owner + bookkeeper
Check Q4 estimated tax status	A missed Q4 payment amplifies the gap; making it early simplifies filing	Dec 31 (Jan 15 latest)	Owner
Pull market wage data for your role	Supports the reasonable-compensation number you document	Dec 15	CPA or fractional CFO
Issue a catch-up payroll run if salary ran low	Must land inside the tax year to count for it	Dec 31	Payroll provider
Document compensation rationale in a resolution	Written documentation is your audit defense; no doc, no defense	Dec 31	CPA or attorney
Verify payroll tax deposits are current (Form 941)	Underpaid payroll tax accrues failure-to-deposit penalties immediately	Before year-end	Payroll provider / CPA
Check the Additional Medicare Tax threshold	Combined wages + distributions over $200K single / $250K MFJ trigger the 0.9% surtax	Dec 15	CPA
Quantify the QBI impact of any salary change	Raising salary cuts the 199A deduction; know the net before you move the number	Dec 15	CPA

How to build a defensible compensation number

Documentation is the whole game, and there are three IRS-accepted ways to build the number. The market-comparable approach anchors your salary to what similar businesses pay for your role, using public wage data such as the Bureau of Labor Statistics occupational series. The cost or services approach breaks your job into its functions (CEO time, sales, operations, finance) and prices each at market. The independent-investor test asks whether an outside investor, looking at the return the business generated, would consider your pay reasonable for the services rendered.

Whichever you use, write it down while the year is still open. Put the compensation rationale and the supporting data into a board or member resolution dated inside the tax year. When we've helped founders clean this up, the difference between a stressful audit and a routine one was almost always whether the number was documented in advance or reconstructed under pressure afterward. If you are remediating a prior-year shortfall, a lump-sum catch-up payroll run is generally cleaner than trying to recharacterize the money after the fact, but that call belongs with a fractional CFO or your CPA and your specific facts.

Sources and methodology

IRS Fact Sheet FS-2008-25 is the operative guidance on S-Corp officer compensation. It defines the reasonable-compensation requirement for shareholder-employees, cites Rev. Rul. 74-44, and lists the facts-and-circumstances factors the IRS weighs. Read it directly at irs.gov.

FICA rates, the Social Security wage base, and Additional Medicare Tax thresholds come from IRS Topic 554 and Publication 15. The 2024 combined FICA rate of 15.3%, the $168,600 Social Security cap, and the $200K/$250K Medicare surtax thresholds are drawn from these. See IRS Topic 554 and Publication 15. The 2025 wage base of $176,100 is per IRS Rev. Proc. 2024-40.

The estimated-tax gap mechanics and the IRC 6654 underpayment penalty are from IRS Publication 505. The quarterly buildup illustration uses a 22% effective rate as a placeholder; your marginal rate will differ. Full detail at irs.gov/publications/p505.

Practitioner context on enforcement, the penalty stack, and QBI interaction is synthesized from dated tax-practice press. The most current source is The Tax Adviser, "Advising S Corporation Clients on Reasonable Compensation" (October 2024), which covers technology-assisted IRS targeting of pass-throughs and the Section 199A impact of reclassification. Available at thetaxadviser.com.

Chart figures are illustrative and match the tables in the body. The FICA-by-split chart applies 2024 rates to a $200K profit and is simplified above the Social Security cap; the estimated-tax chart models a $150K distribution year at 22%. Both are directional teaching tools, not a substitute for a return prepared on your actual numbers.

Frequently asked questions

how much salary do i actually have to pay myself as an s-corp owner?

There is no fixed number. The IRS requires reasonable compensation for the services you perform before any profit can flow as a distribution. In practice, active owner-operators often land at 35-50% of net income, but the real test is what someone would be paid to do your job. Document that number with market data and you have a defense.

what is the irs reasonable compensation standard for s-corps?

It comes from Rev. Rul. 74-44 and IRS Fact Sheet FS-2008-25. The IRS can reclassify distributions as wages to the extent they represent pay for services you performed. It is a facts-and-circumstances test built on factors like your training, duties, time, and comparable pay. There is no safe-harbor percentage in the tax code.

can i pay myself only in distributions and skip a salary in my s-corp?

No, not if you actively work in the business. A $0 or near-$0 salary while you take large distributions is the single most common trigger for a reasonable-compensation audit. If the IRS reclassifies the distributions as wages, you owe back FICA plus penalties and interest on top.

what's the penalty if the irs says my s-corp salary is too low?

The distributions get reclassified as wages. That means back FICA (15.3%), a failure-to-deposit penalty on the unpaid payroll tax, a 20% accuracy-related penalty on the understatement, and interest from the original due dates. Practitioners estimate the all-in cost at 20-40%+ of the reclassified amount.

is the 60/40 rule for s-corp salary safe to use?

No. The 60/40 rule (60% salary, 40% distributions) is a rule of thumb that circulates online, not IRS guidance. It has no legal standing and will not protect you in an audit. What protects you is a compensation number supported by real market data for your role, written down before the year closes.

what's the penalty for not making quarterly estimated tax payments on distributions?

Distributions have no withholding, so if you take them without paying estimated tax, you build an underpayment. The IRS charges a penalty under IRC 6654 on each missed quarterly installment, at the federal short-term rate plus three points, and the whole shortfall comes due at filing. It is effectively interest on money you should have sent in earlier.

do s-corp distributions count as self-employment income?

No. That is the whole point of the S-election. S-Corp distributions are not subject to self-employment tax or FICA. Only your W-2 wages are. That is why the salary-vs-distribution split is a tax lever, and also why the IRS polices the salary side so closely.

does taking more salary reduce my qbi deduction?

Yes, it can. Raising your W-2 salary lowers the pass-through income that qualifies for the Section 199A QBI deduction, so a higher salary saves you nothing on FICA that it does not partly give back on QBI. It is a real tradeoff to quantify with your CPA, not a reason to under-pay yourself below a defensible number.

i haven't paid myself enough salary this year, what do i do in december?

Run a catch-up payroll before December 31 so it lands inside the tax year, and make your Q4 estimated payment. Both have hard deadlines. Then document the compensation rationale in a board or member resolution. If you wait until the January or April CPA meeting, most of your options have already closed.