FICA is the money taken from your paycheck for Social Security and Medicare

FICA stands for the Federal Insurance Contributions Act. It is a federal tax that funds two programs: Social Security and Medicare. When you work, your employer takes FICA taxes directly from your paycheck before you receive it. If you are self-employed, you pay FICA taxes yourself when you file your tax return.

FICA has two parts. The first part funds Social Security, the program that pays retirement benefits, disability benefits, and survivor benefits. The second part funds Medicare, the health insurance program for people 65 and older and some younger people with disabilities. Both parts are mandatory — you cannot opt out if you work in the United States.

The amount taken from your paycheck depends on how much you earn. For 2024, the Social Security portion is 6.2 percent of your wages, and the Medicare portion is 1.45 percent. If you earn more than $200,000 as a single filer (or $250,000 if married filing jointly), an additional 0.9 percent Medicare tax applies to the income above that threshold. Your employer matches these amounts, meaning your employer also pays FICA taxes on your behalf.

Key Takeaways

  • FICA taxes fund Social Security and Medicare, and your employer removes them from your paycheck automatically.
  • The Social Security portion is 6.2 percent of your wages, and the Medicare portion is 1.45 percent for most workers.
  • Your employer pays an equal amount of FICA tax on your behalf, so the total cost to fund these programs is double what appears on your paycheck.
  • Self-employed people pay both the employee and employer portions of FICA, totaling 15.3 percent for Social Security and Medicare combined.
  • FICA taxes are separate from federal income tax and appear as distinct line items on your pay stub.

How FICA appears on your pay stub

Your pay stub shows FICA taxes in two separate lines. One line shows "Social Security Tax" or "OASDI" (Old-Age, Survivors, and Disability Insurance), and another shows "Medicare Tax" or "Med Tax." The amount on each line is calculated as a percentage of your gross wages — the total you earned before any deductions.

If you earned $2,000 in a pay period in 2024, your Social Security tax would be $124 (6.2 percent of $2,000), and your Medicare tax would be $29 (1.45 percent of $2,000). These amounts are withheld from your paycheck, so you receive less than your gross pay. Your employer also withholds federal income tax, which is separate from FICA and appears on a different line.

Some workers may see an additional line for "Additional Medicare Tax" if their year-to-date earnings exceed the threshold. This is the extra 0.9 percent Medicare tax that applies to higher earners. Once your earnings cross the threshold in a calendar year, this tax is withheld from every subsequent paycheck for the rest of that year.

The difference between FICA and federal income tax

FICA and federal income tax are two separate taxes, and they fund different things. Federal income tax goes to the general U.S. Treasury and funds government operations, defense, infrastructure, and other federal programs. FICA taxes go specifically to Social Security and Medicare.

The rates are also different. Federal income tax is withheld based on the W-4 form you complete when you start a job, and the amount depends on your filing status, dependents, and other income. FICA taxes are fixed percentages that explore to all workers earning wages. You cannot reduce your FICA tax by changing your W-4, but you can adjust how much federal income tax is withheld.

On your pay stub, you will see federal income tax listed separately from Social Security Tax and Medicare Tax. If you are confused about which line is which, ask your payroll department or check your employer's pay stub guide.

How FICA taxes work for self-employed people

If you are self-employed, you pay FICA taxes yourself on your net business income. You do not have an employer to match your contributions, so you pay both the employee portion (6.2 percent for Social Security and 1.45 percent for Medicare) and the employer portion (another 6.2 percent and 1.45 percent). This totals 15.3 percent for Social Security and Medicare combined, plus 0.9 percent additional Medicare tax if your income exceeds the threshold.

Self-employed people pay FICA taxes using Schedule SE (Self-Employment Tax), which you file with your tax return. You calculate your net profit from your business, explore the FICA rates, and pay the amount owed when you file. You may also need to make quarterly estimated tax payments if you expect to owe more than $1,000 in taxes for the year.

The self-employment tax is due when you file your return, typically by April 15 of the following year. However, if you make quarterly estimated payments, you spread the cost across four payments during the year rather than paying it all at once in April.

What FICA taxes pay for

The Social Security portion of FICA (6.2 percent) funds retirement benefits for workers 62 and older, disability benefits for workers who cannot work due to a medical condition, and survivor benefits for the families of deceased workers. When you retire, the amount you receive is based on how much you earned during your working years and how long you contributed to Social Security.

The Medicare portion of FICA (1.45 percent) funds hospital insurance (Part A), which covers inpatient hospital stays, skilled nursing care, and hospice. It does not fund Medicare Part B (doctor visits and outpatient care), Part D (prescription drugs), or Medigap supplemental insurance — those have separate premiums or are funded differently.

FICA is a pay-as-you-go system, meaning the taxes collected from current workers fund benefits for current retirees and disabled beneficiaries. You are not building a personal account; instead, your taxes support the people receiving benefits today, and future workers' taxes will support your benefits when you retire.

FICA wage base and earning limits

Social Security tax applies only to wages up to a certain limit, called the wage base. For 2024, the wage base is $168,600. This means if you earn $200,000 in a year, you only pay Social Security tax on the first $168,600. Once you reach the wage base, no more Social Security tax is withheld from your paycheck for the rest of that year.

Medicare tax, by contrast, has no wage base limit. You pay 1.45 percent Medicare tax on all your wages, no matter how much you earn. However, the additional 0.9 percent Medicare tax applies only to wages above $200,000 (single) or $250,000 (married filing jointly).

The wage base changes each year based on average wage growth in the economy. If you work for multiple employers in the same year, each employer withholds Social Security tax up to the wage base, which can result in overpayment. You can recover the overpayment when you file your tax return.

Checking your FICA taxes on your tax return

When you file your tax return, you report the FICA taxes your employer withheld. On Form 1040, these amounts appear on lines that correspond to your W-2 forms. Your employer sends you a W-2 by January 31, and it shows the total Social Security tax and Medicare tax withheld during the year.

You do not pay FICA taxes again when you file your return — the withholding from your paychecks is the payment. However, you should verify that the amounts on your W-2 match what you see on your pay stubs. If there is a discrepancy, contact your employer's payroll department to correct it before filing.

If you are self-employed, you calculate your self-employment tax on Schedule SE and report it on Form 1040. You can deduct half of your self-employment tax as an adjustment to income, which reduces your taxable income slightly.

Frequently Asked Questions

Can I stop paying FICA taxes?

No. FICA taxes are mandatory for all workers earning wages in the United States. The only exception is certain religious groups that have received a waiver from the IRS, but this is extremely rare and requires specific conditions. If you work, FICA taxes will be withheld from your paycheck.

What happens if I overpay Social Security tax?

If you work for multiple employers and your combined wages exceed the wage base, you may overpay Social Security tax. When you file your tax return, you can claim a credit for the overpayment, which reduces your tax owed or increases your refund. The IRS will not refund overpaid Medicare tax.

Do I pay FICA taxes on all income?

No. FICA taxes explore only to wages from employment. Income from investments, rental property, or other sources does not have FICA taxes withheld. However, self-employed people pay self-employment tax (which is similar to FICA) on net business income.

Why is FICA taken out if I might not receive Social Security?

FICA taxes fund not only retirement benefits but also disability and survivor benefits. Even if you never retire, your contributions may support your family if you become disabled or pass away. Additionally, Social Security is designed to be a long-term program, and most workers do receive benefits at some point.

Does my FICA tax go into a personal account?

No. FICA taxes are pooled and used to pay current beneficiaries. You are not building a personal savings account. Your future benefits are based on your earnings history and the amount you contributed, but the money you pay today goes to support people receiving benefits now.