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BizTaxMetrics

· payroll-tax · social-security · 2026· Last updated September 24, 2026

2026 payroll tax limits for S-Corp owners: $184,500 wage base, $11,439 maximum

The Social Security wage base for 2026 is $184,500. Once an S-Corp owner's W-2 salary reaches that number, the 6.2% Social Security tax stops — but Medicare, Additional Medicare, and the employer match rules keep going. Here are the complete 2026 limits and what they change in the LLC-vs-S-Corp comparison.

Every payroll number an S-Corp owner works with in 2026 starts with one figure: the Social Security wage base of $184,500. That is the maximum amount of wage income subject to the 6.2% Social Security tax on either side of the payroll relationship. It is announced by the Social Security Administration in the fall before the tax year (October 2025 for 2026), it is not negotiable, and it does not depend on your filing status or your state.

If you own an S-Corp and run yourself through payroll, this number determines the largest single line item in your payroll tax bill. If you are still taxed as a default LLC, the same cap applies to your self-employment tax — just measured differently.

The 2026 numbers at a glance

  • Social Security wage base: $184,500.
  • Employee Social Security withholding: 6.2% of wages up to the base — maximum $11,439.
  • Employer Social Security match: 6.2% of wages up to the base — maximum $11,439.
  • Total Social Security tax on one worker: $22,878 (the self-employed person pays the whole $22,878 as part of self-employment tax).
  • Medicare: 1.45% employee + 1.45% employer, uncapped. On $184,500 of salary that is $2,675.25 per side; on a salary above the wage base it keeps growing with every dollar.
  • Additional Medicare Tax: 0.9%, employee-only, on wages above $200,000 (single or head of household), $250,000 (married filing jointly), or $125,000 (married filing separately). These thresholds are statutory and are not indexed for inflation.
  • FUTA: 6.0% on the first $7,000 of wages, reduced to 0.6% by the state credit — a maximum of $42 per employee in most states.
  • Self-employment tax (LLC): 15.3% on 92.35% of net earnings — 12.4% Social Security on the first $184,500 of that adjusted base, plus 2.9% Medicare with no cap.

What changed from 2025

The wage base rose from $176,100 in 2025 to $184,500 in 2026, an increase of $8,400, or about 4.77%. For an S-Corp owner earning at or above the cap, that shifts roughly $520.80 more of salary into Social Security tax on each side ($11,439 versus $10,918.20 in 2025). Medicare rates (1.45% / 2.9%) and the Additional Medicare thresholds ($200,000 / $250,000 / $125,000) did not change — those figures have been fixed since 2013 and are not adjusted for inflation.

What an S-Corp owner actually pays

An S-Corp owner who takes a salary is a W-2 employee of their own company. The company withholds the employee share and pays the employer share on top. Two examples, both using 2026 rates:

  • Salary of $60,000: employee share is 7.65% (6.2% + 1.45%) = $4,590; employer share is another$4,590. Nothing is capped because the salary is below the wage base.
  • Salary of $200,000: employee share is Social Security $11,439 (capped at $184,500) + Medicare $2,900 =$14,339, plus Additional Medicare on wages above $200,000. Employer share is Social Security $11,439 + Medicare $2,900 =$14,339, with no employer portion of the 0.9% Additional Medicare — that one is employee-only by statute.

The pass-through profits that are not paid out as salary are not subject to FICA at all. That is the mechanism behind the entire S-Corp election: salary carries payroll tax, distributions do not.

What the same profit costs as an LLC

A default LLC owner pays self-employment tax instead, on 92.35% of net earnings:

  • $150,000 net profit: adjusted base = $138,525. SE tax = 15.3% × $138,525 = $21,194. The Social Security portion is well under the cap.
  • $250,000 net profit: adjusted base = $230,875. Social Security is capped at $184,500 → $22,878, plus Medicare at 2.9% of $230,875 = $6,695. Total SE tax = $29,573. Every dollar of adjusted earnings above roughly $199,784 (the net-profit level where 92.35% equals $184,500) pays only 2.9%.

Notice the shape: the LLC's SE tax has the same $184,500 Social Security ceiling the payroll system has, and the same uncapped Medicare tail. The S-Corp does not remove payroll tax — it moves part of the income out of the payroll system entirely.

Side-by-side comparisons

Using the BizTaxMetrics method — full SE tax on the LLC side versus the employer-side FICA on the S-Corp side, because the employee's half of FICA would be owed on a salary in either structure:

  • Profit $150,000, S-Corp salary $60,000: LLC SE tax $21,194 − S-Corp employer FICA $4,590 = $16,604 gross payroll-tax difference before state entity fees and income tax.
  • Profit $250,000, S-Corp salary $100,000: LLC SE tax $29,573 − S-Corp employer FICA $7,650 = $21,923 gross difference.

Both figures move with the wage base, because the LLC's capped Social Security portion and the S-Corp's capped employer match rise and fall together. Income tax, the Section 199A deduction, the deductible half of self-employment tax, state fees, payroll service costs, and the extra Form 1120-S preparation all sit on top of these numbers, which is why the calculator treats them as inputs rather than conclusions.

Why the cap matters at the margins

Once salary reaches $184,500, the employer's cost of the next dollar of salary drops from 7.65% to 1.45% (Social Security has stopped). Total cost drops to 2.9% including the employee's share. Above $200,000 of wages, an additional 0.9% applies — but only to the employee, not the company.

Two cautions. First, the wage base is a tax ceiling, not a compensation standard: the salary you set still has to be reasonable for the work you do, which is a separate IRS question with its own documentation burden. Second, an S-Corp that pays no salary — or salary far below market — is the single most common audit target in this area, and penalties and back-tax assessments can exceed the savings modeled in any calculator.

Additional Medicare and Form 8959

The 0.9% Additional Medicare Tax is withholding-only in practice: an employer must begin withholding it once an employee's wages exceed $200,000 in the calendar year, regardless of filing status or marital status. Your actual liability depends on your return's threshold, so Form 8959 reconciles the difference when you file. If your S-Corp wages and your spouse's wages together cross $250,000, you may owe more than your employer withheld. Because there is no employer match, this tax is entirely an owner-side cost.

FUTA and state unemployment

Federal unemployment tax is 6.0% on the first $7,000 of wages per employee, offset by a 5.4% credit for timely state unemployment contributions, leaving an effective 0.6% — a maximum of $42 per employee. S-Corp owner-officers are covered employees, so the S-Corp owes FUTA on the first $7,000 of the owner's salary and files Form 940 annually. State unemployment wage bases and rates are set separately by each state and can materially exceed the federal figure in high-rate states.

The 2026 payroll calendar

  • Every pay date: deposits via EFTPS on a monthly or semi-weekly schedule, based on your lookback period.
  • Quarterly (Form 941): due the last day of the month after each quarter — April 30, July 31, October 31, and January 31, 2027.
  • Annually (Form 940): due January 31, 2027.
  • W-2s: to employees and the Social Security Administration by January 31, 2027, with W-3 reconciling the year.
  • State returns: withholding and unemployment filings follow each state's own frequency.

What this does not cover

This is the federal layer only. State income tax withholding, state payroll taxes, disability insurance, paid leave programs, local taxes, and multi-state allocation all sit on top of these figures. It is also not tax advice — payroll elections interact with your overall return, and a licensed CPA or payroll provider should review your specific setup before you change a salary or a deposit schedule.

Frequently asked questions

Is $184,500 a limit on how much I can pay myself?

No. It is only the ceiling on Social Security tax. Wages above it are still subject to Medicare at 1.45% per side, and to the 0.9% Additional Medicare Tax above the filing-status thresholds.

Do S-Corp distributions count toward the wage base?

No. Distributions of pass-through profit are not wages and are not subject to FICA. Only the W-2 salary runs through the wage base — which is exactly why the salary decision carries so much weight.

What if I have wages from two employers?

Each employer applies the cap to the wages it pays, so two jobs can result in more than $11,439 of Social Security withholding in total. Excess withholding can be claimed as a credit on your Form 1040.

Does the LLC owner get the same cap?

Yes, structurally. Self-employment tax applies 12.4% to 92.35% of net earnings, and that portion stops at $184,500 of adjusted earnings — about $199,784 of net profit. The 2.9% Medicare portion never stops.

Does raising my salary above the wage base cost me more?

Only 1.45% in employer cost and 1.45% in employee withholding for each dollar up to $200,000, then those same amounts plus 0.9% employee-only above it. Social Security does not add cost above $184,500.

Where does the wage base come from?

The Social Security Administration announces it in October of the prior year based on the national average wage index. The 2026 figure is published in the SSA's contribution and benefit base announcement.

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