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Last checked 2026-11-07. The wage base is reset every year by an automatic formula, so confirm the figure for your own tax year on the Social Security Administration page linked below before you rely on it.
The calculator on this page applies the correct wage base for each year it offers, so the default answer for a high salary will show Social Security tax that stops rising.
The payroll tax that shows on a pay stub as FICA is really two taxes with different rules.
Social Security, formally OASDI, is charged at 6.2% for the employee and 6.2% for the employer, 12.4% in total. It applies only up to the wage base.
Medicare, formally HI, is charged at 1.45% for the employee and 1.45% for the employer, 2.9% in total. It applies to all covered wages.
The IRS states the asymmetry directly: "Only the Social Security tax has a wage base limit," and "There's no wage base limit for Medicare tax" (IRS).
So the first thing to understand about the cap is that it is not a general payroll-tax cap. It belongs to one of the two taxes only. Someone earning well above the wage base still pays Medicare on every dollar, forever.
| Year | Social Security wage base | Maximum employee OASDI |
|---|---|---|
| 2025 | $176,100 | $10,918.20 |
| 2026 | $184,500 | $11,439.00 |
| 2027 | $192,300 | $11,922.60 |
The 2026 and 2027 wage base figures and the 2026 and 2027 maximum employee contributions are published by the Social Security Administration (SSA, SSA 2026 COLA fact sheet). The 2025 figure is the administration's prior-year value and is shown for comparison.
The 2026 and 2027 maximums are published by the Social Security Administration; the 2025 maximum is our arithmetic, 6.2% of $176,100, since the source table gives only the 2025 wage base and the 2026 and 2027 maximums.
Read the table as a ceiling, not a rate. Between 2026 and 2027 the ceiling rises by $7,800, and the maximum employee contribution rises by $483.60, which is 6.2% of $7,800. The rate never moved. Only the ceiling did.
This is the part most explanations skip, and it is the part that makes the rule make sense.
The Social Security Administration describes the wage base as a single annual limit that does two jobs: it "limits the amount of earnings subject to taxation for a given year," and "the same annual limit also applies when those earnings are used in a benefit computation" (SSA).
Tax and benefit are built on the same base. Earnings above the limit are outside both the tax and the benefit formula. That is why the cap is not best understood as a tax break for high earners: the earnings above it also do not generate additional Social Security benefits under the formula.
One timing note: the 2027 figures were published on 2026-11-05 and apply to income earned from 2027-01-01, so they are not the figures on a paycheck today.
The limit is not fixed by legislation each year. It "changes each year with changes in the national average wage index," which is why it moved by $8,400 from 2025 to 2026 and by $7,800 from 2026 to 2027, and why any article quoting a single number without a year is unreliable.
Social Security taxes do not sit in a general fund. They are deposited into the Social Security trust funds, which the Social Security Administration describes as accounts managed by the Department of the Treasury, with tax income "deposited on a daily basis" and "invested in special-issue securities." Benefits are paid from the redemption or sale of those securities, and the investments are "backed by the full faith and credit of the U.S. Government" (SSA).
None of that changes your paycheck arithmetic. It does explain why the wage base is framed in terms of covered earnings rather than in terms of income in general: the program is an insurance scheme with a defined contribution base, and the base is the same on both sides of the ledger.
Consider a single filer earning $250,000 in 2026. Medicare applies to all $250,000 at 1.45%, which is $3,625. Social Security applies only to the first $184,500 at 6.2%, which is $11,439 — the published maximum for the year. The remaining $65,500 attracts no Social Security tax.
The visible effect on a pay stub is that Social Security withholding stops partway through the year. For a salaried employee paid evenly, the deduction disappears from paychecks near the point where cumulative wages pass the base. That is expected behavior, not a payroll error, and it is worth knowing before you query it with an employer.
The less visible effect is on the marginal cost of extra work late in the year. Once the base is passed, additional wages cost 1.45% in Medicare rather than 7.65% in combined payroll tax. A year-end bonus is therefore charged at a lower payroll-tax rate than a bonus paid in January.
The last point in that list is the one that trips up comparisons between a salaried employee and someone living on portfolio income: the payroll tax comparison alone cannot settle which situation is better after tax, because the two incomes are not taxed by the same set of rules.
Put your own salary into the calculator on this page and watch where the Social Security line stops rising as you increase the figure.
Updated 2026-11-08 · Sources retrieved 2026-11-07
This is a general explanation of how the Social Security wage base works, not tax advice. The examples use a single filer with wages only, no self-employment income and no additional Medicare tax. Your own result depends on your full situation. For anything you will act on, check the IRS and Social Security Administration pages linked above or ask a tax professional.
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