The Social Security payroll tax rate is 6.2 percent of your wages, withheld from every paycheck, and your employer pays a matching 6.2 percent on top. For 2026, this tax applies only to the first $184,500 you earn, so the most you can personally owe in a single year is $11,439.1Social Security Administration. Contribution and Benefit Base Combined with the employer share, 12.4 percent of every dollar under the cap flows into the Social Security trust funds that pay retirement, disability, and survivor benefits.
How the 6.2 Percent Split Works
The Federal Insurance Contributions Act sets two separate taxes at the same rate: 6.2 percent on the employee’s wages and 6.2 percent on the employer for those same wages.2Office of the Law Revision Counsel. 26 U.S.C. 3101 – Rate of Tax3Office of the Law Revision Counsel. 26 U.S.C. 3111 – Rate of Tax Your employer handles both sides. The 6.2 percent comes out of your gross pay automatically, and your employer sends both shares to the IRS. You don’t get a bill and you don’t opt in.
The math is easy to check on a paycheck. If you earn $60,000 a year, $3,720 comes out of your pay across the year for Social Security, and your employer pays another $3,720 on your behalf. Look for the line labeled “Social Security” or “OASDI” on your pay stub; the withholding should equal 6.2 percent of your gross wages for that period.
The 2026 Wage Base Limit
Social Security tax stops once your earnings for the year cross the contribution and benefit base. For 2026, that cap is $184,500.1Social Security Administration. Contribution and Benefit Base After you hit that number, neither you nor your employer owes any more Social Security tax on your wages for the rest of the calendar year.4Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates
The cap climbs most years, tied to changes in the national average wage index. It was $168,600 in 2024, $176,100 in 2025, and $184,500 in 2026.1Social Security Administration. Contribution and Benefit Base Higher earners often notice a bump in take-home pay late in the year, when the 6.2 percent withholding drops off until January resets the clock.
If You Work Two Jobs
Each employer withholds Social Security tax based only on what they pay you. Neither knows what the other is doing. If your combined wages from two or more employers cross $184,500, too much Social Security tax will come out of your paychecks overall.
You get it back on your federal tax return. The IRS lets you claim the excess as a credit when you file.5Internal Revenue Service. Topic No. 608, Excess Social Security and RRTA Tax Withheld Add up box 4 from each W-2, subtract the annual maximum, and report the difference on your return. Different rule if you only had one employer and they withheld too much: that employer has to refund the overage to you directly.
Medicare on Top
Social Security is only one piece of the FICA line on your pay stub. Medicare adds another 1.45 percent from you and 1.45 percent from your employer, and Medicare has no wage cap. It applies to every dollar you earn.4Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates
An extra 0.9 percent Medicare surtax hits wages above $200,000 for single filers or $250,000 for married couples filing jointly. Only the employee pays this extra amount; employers do not match it.6Internal Revenue Service. Questions and Answers for the Additional Medicare Tax Add Social Security and Medicare together and the standard FICA rate is 7.65 percent from you and 7.65 percent from your employer, or 15.3 percent combined.
If You’re Self-Employed
Working for yourself means paying both halves. Federal law puts the full 12.4 percent Social Security tax on self-employed individuals, plus 2.9 percent for Medicare, for a total self-employment tax rate of 15.3 percent.7Office of the Law Revision Counsel. 26 U.S.C. 1401 – Rate of Tax The obligation begins once your net self-employment earnings reach $400 for the year.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
You don’t apply the 15.3 percent to your full net profit. First, multiply net earnings by 92.35 percent to get your self-employment tax base. That figure is what you compare against the $184,500 cap for the Social Security portion; the 2.9 percent Medicare portion applies with no cap. You also get to deduct half of your self-employment tax when calculating adjusted gross income on your personal return, which lowers your income tax though not the self-employment tax itself.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) You calculate everything on Schedule SE and file it with your Form 1040.9Internal Revenue Service. About Schedule SE (Form 1040), Self-Employment Tax
Who Doesn’t Pay
Almost every worker in the United States pays the tax. A few narrow groups are exempt:
- Members of qualifying religious groups that have opposed public and private insurance continuously since December 31, 1950, and provide for their dependent members, may apply using IRS Form 4029. Approval permanently waives both the tax and any right to Social Security or Medicare benefits.10Internal Revenue Service. Application for Exemption From Social Security and Medicare Taxes and Waiver of Benefits
- Nonresident alien students on F-1, J-1, or M-1 visas are generally exempt for their first five calendar years in the U.S., provided the employment is authorized and connected to the purpose of the visa.11Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
- Students enrolled at least half-time who work on campus for their own school may qualify for the student FICA exception, regardless of citizenship.11Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
- Workers covered by a totalization agreement — an international tax treaty — while temporarily working in the U.S. and remaining covered by their home country’s system.
Outside these categories, the tax is mandatory. There’s no general opt-out for someone who would rather invest the money themselves.
What Your Contributions Buy
The tax you pay is how you qualify for benefits later. In 2026, you earn one Social Security credit for each $1,890 in covered earnings, capped at four credits per year, so $7,560 in wages gets you the full four.12Social Security Administration. Benefits Planner – Social Security Credits and Benefit Eligibility Most workers need 40 credits — roughly 10 years of work — to qualify for retirement benefits. Disability and survivor benefits require fewer credits, with the exact number depending on your age when you become disabled or when the covered worker dies.
Because credits and benefits both trace back to reported earnings, it’s worth confirming that the SSA’s record of what you’ve earned matches what you actually made. You can review your earnings history by signing in at ssa.gov.13Social Security Administration. Review Record of Earnings Fixing an underreported year is much easier while pay stubs and old W-2s are still within reach than years down the road when you’re claiming benefits.