For most workers, Social Security tax stops coming out of your paycheck the moment your year-to-date wages cross the annual wage base limit, which is $184,500 for 2026. At the 6.2% employee rate, that caps your Social Security contribution at $11,439 for the year. Every paycheck after you hit the ceiling arrives without the 6.2% deduction, and the counter resets on January 1 regardless of what you earned the year before.1Social Security Administration. Contribution and Benefit Base
That’s the short answer. The longer answer depends on how you earn your money, whether you have more than one employer, and whether your job is one of the categories carved out of Social Security altogether.
The 2026 Wage Base Is the Main Stopping Point
Section 230 of the Social Security Act requires the Social Security Administration to adjust the taxable earnings cap each year based on the national average wage index.2Social Security Administration. Social Security Act 230 – Adjustment of the Contribution and Benefit Base For 2026, that cap is $184,500. You pay 6.2% on every dollar of wages up to that amount, and your employer matches it, for a combined 12.4%. Self-employed workers owe the full 12.4% themselves through SECA.1Social Security Administration. Contribution and Benefit Base
Once your cumulative wages for the year cross $184,500, your employer’s payroll system should stop withholding the 6.2% automatically. The jump in take-home pay is noticeable. High earners sometimes see it arrive as early as mid-year.
Reaching full retirement age or already collecting monthly Social Security checks does not change any of this. Everyone working in covered employment pays the 6.2% on wages up to the annual limit, regardless of age.3Social Security Administration. Must I Pay Social Security Taxes on My Earnings After Full Retirement Age? The deduction stops the same way it stops for anyone else: you hit the wage base, or you stop working.
What If You Have More Than One Job
If you work for more than one employer during the year, each one withholds 6.2% independently. Your second employer has no way to know how much your first employer already took. So you can easily overshoot the $184,500 ceiling in total, even though neither employer alone paid you that much.
When that happens, you claim the overpayment as a credit on Schedule 3 of your federal tax return (Line 11). The IRS applies it against other tax you owe or refunds the difference.4Internal Revenue Service. Topic No. 608, Excess Social Security and RRTA Tax Withheld
If a single employer withholds too much on its own, the fix is different. You can’t claim that on your tax return. The employer is responsible for correcting the error and refunding the excess to you directly. If the employer refuses, you file Form 843 with the IRS to request the refund yourself.4Internal Revenue Service. Topic No. 608, Excess Social Security and RRTA Tax Withheld
What Doesn’t Reduce Your Social Security Wages
A common misconception: money you divert into a 401(k) or similar employer-sponsored retirement plan does not reduce your Social Security wages. Elective deferrals to a 401(k) are still included as wages subject to FICA withholding.5Internal Revenue Service. 401(k) Plan Overview If your salary is $200,000 and you contribute $23,500 to your 401(k), your employer still withholds Social Security tax on the full $184,500 wage base, not on $176,500. The 401(k) shelters you from income tax, not from FICA.
Severance pay is another one that surprises people leaving a job. In United States v. Quality Stores, Inc., the U.S. Supreme Court held unanimously that severance payments qualify as wages subject to Social Security and Medicare taxes. Expect FICA to come out of a severance package the same way it comes out of a regular paycheck.
Income That Never Triggers Social Security Tax
Social Security tax only applies to what the tax code calls “wages,” which broadly means money you receive for work you perform.6Office of the Law Revision Counsel. 26 USC 3121 – Definitions Income that doesn’t flow from active labor falls outside FICA entirely. That’s why many people effectively stop paying Social Security tax when they retire and shift to living off savings and investments.
Investment Income
Capital gains from selling stocks or real estate, interest from savings accounts, and dividends from shareholdings are not wages and carry no Social Security tax obligation.7Internal Revenue Service. Net Investment Income Tax Federal income tax still applies, and higher earners may owe the separate 3.8% net investment income tax, but the 6.2% FICA deduction never does. Rental income and royalties follow the same rule.
Retirement Distributions
Withdrawals from a traditional 401(k), IRA, or pension are taxed as ordinary income, but they aren’t wages for services. That means no FICA withholding on any of those distributions. Preserving even 6.2% of every dollar coming out of a retirement account adds up over decades.
Workers Who Don’t Pay Social Security Tax at All
Most workers in the United States pay into Social Security, but several categories are carved out by federal law. If you fall into one of these groups, the 6.2% deduction never appears on your paycheck in the first place.
State and Local Government Employees
Some state and local government workers participate in public pension systems instead of Social Security. These arrangements exist through Section 218 agreements between individual states and the Social Security Administration, which allow coverage groups of public employees to be excluded from the federal program when the state retirement system provides equivalent benefits.8Social Security Administration. Section 218 Agreements – State and Local Government Employers If you work for a government entity and don’t see Social Security tax on your pay stub, this is almost certainly why.
Religious Exemptions
Members of recognized religious groups conscientiously opposed to accepting public insurance benefits can apply for an exemption by filing Form 4029. Although it is an IRS form, the application is sent to the Social Security Administration for processing.9Internal Revenue Service. Form 4029, Application for Exemption From Social Security and Medicare Taxes and Waiver of Benefits Once approved, both worker and employer stop paying FICA on those wages. The tradeoff is permanent: you waive all rights to Social Security retirement, disability, and Medicare benefits, including benefits others might otherwise receive based on your earnings record.
Students Working at Their School
If you work for the same school, college, or university where you’re enrolled and regularly attending classes, your wages may be exempt under the student FICA exception. The test is whether your employment is incidental to your education rather than the other way around. A graduate student working as a teaching assistant typically qualifies. A full-time university employee who takes one evening class likely does not.10Internal Revenue Service. Student Exception to FICA Tax
Foreign Students and Exchange Visitors
Nonresident aliens in the U.S. on F-1, J-1, or M-1 student or exchange visitor visas are generally exempt from Social Security and Medicare taxes for their first five calendar years. The exemption covers on-campus employment up to 20 hours per week during the school year (40 hours during summer) and off-campus work authorized by immigration services. After five calendar years, the person becomes a resident alien for tax purposes and normal FICA rules apply.11Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
Household Employees Below the Wage Threshold
If you hire someone to work in your home, such as a nanny, housekeeper, or caregiver, Social Security and Medicare taxes only kick in once you pay that person $3,000 or more in cash wages during 2026. Below that threshold, neither you nor the worker owes FICA on those wages. Once the $3,000 mark is crossed, all cash wages for the year become subject to Social Security tax up to the $184,500 wage base.12Internal Revenue Service. Publication 926 (2026), Household Employer’s Tax Guide
Medicare Withholding Does Not Stop
One boundary worth keeping in mind: only the Social Security portion of FICA has a ceiling. The 1.45% Medicare tax applies to every dollar you earn with no cap at all.13Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates Higher incomes trigger more Medicare tax, not less. On top of the standard 1.45%, an Additional Medicare Tax of 0.9% kicks in once your wages exceed a threshold that depends on your filing status:14Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax
- Single or head of household: $200,000
- Married filing jointly: $250,000
- Married filing separately: $125,000
Your employer starts withholding the extra 0.9% once your wages pass $200,000, regardless of filing status. If you’re married filing jointly and your combined household income triggers the tax at a different threshold, you reconcile the difference when you file your return.15Internal Revenue Service. Topic No. 560, Additional Medicare Tax So if you cross the Social Security wage base and see a bump in take-home pay, remember that the Medicare line on your pay stub is still there, and at higher incomes it’s actually growing.