FICA stands for Federal Insurance Contributions Act

FICA is the federal law that requires you and your employer to pay into Social Security and Medicare. The acronym breaks down into four words: Federal Insurance Contributions Act. When you see FICA taxes on your paycheck stub, that money is going to two separate programs — Social Security and Medicare — each with its own tax rate and its own purpose.

The FICA law was passed in 1935 as part of the Social Security Act. It created a system where workers and employers both contribute a percentage of wages throughout a worker's career. Those contributions then fund benefits for retirees, disabled workers, and people on Medicare. Understanding what FICA is helps you read your paycheck and know where your money is going.

Key Takeaways

  • FICA stands for Federal Insurance Contributions Act, the law that requires payroll taxes for Social Security and Medicare.
  • FICA taxes are split into two parts: 6.2% for Social Security and 1.45% for Medicare, both withheld from your paycheck.
  • Your employer matches your FICA contribution dollar-for-dollar, though you only see your half on your paycheck.
  • Self-employed people pay both the employee and employer portions of FICA tax, totaling 15.3% for Social Security and Medicare combined.
  • FICA taxes fund current benefits for retirees and disabled workers, not a personal savings account in your name.

How FICA taxes are split between Social Security and Medicare

FICA is actually two taxes combined. The Social Security portion is 6.2% of your wages, and the Medicare portion is 1.45%. Both come out of your paycheck before you see the money. If you earn $50,000 a year, you pay $3,100 in Social Security tax and $725 in Medicare tax — a total of $3,825 in FICA taxes.

The Social Security tax has a wage cap, which means once you earn a certain amount in a year, you stop paying it. For 2024, that cap is $168,600, so high earners pay Social Security tax only on the first $168,600 of income. Medicare tax has no cap — you pay 1.45% on all your wages, no matter how much you earn. If you earn over $200,000 as a single filer (or $250,000 married filing jointly), you also pay an additional 0.9% Medicare tax on the income above that threshold.

What your employer contributes to FICA

Your employer pays an equal amount of FICA tax on your behalf. If you pay 6.2% for Social Security, your employer also pays 6.2%. If you pay 1.45% for Medicare, your employer also pays 1.45%. This employer contribution does not appear on your paycheck — it is a separate cost to the business — but it is part of the total FICA system.

The employer match is why FICA is sometimes called a "payroll tax." The total FICA burden on a typical employee is 15.3% of wages when you add the employee and employer portions together. However, you only see your half (7.65%) withheld from your paycheck. The employer portion is paid directly to the IRS by the business.

Self-employed workers and FICA taxes

If you are self-employed, you pay both the employee and employer portions of FICA tax yourself. This is called self-employment tax, and it totals 15.3% of your net business income. You calculate it on Schedule SE (Form 1040), which you file with your income tax return.

Self-employed people can deduct half of their self-employment tax when calculating their adjusted gross income, which provides some tax relief. However, you still owe the full 15.3% to the IRS. If you earn $50,000 in net self-employment income, you owe $7,650 in self-employment tax. Many self-employed workers pay this in quarterly estimated tax payments rather than waiting until tax time.

Where FICA money goes and how it is used

FICA taxes fund two separate trust funds: the Social Security trust fund and the Medicare trust fund. Social Security benefits go to retirees age 62 and older, disabled workers of any age, and surviving family members of deceased workers. Medicare covers hospital insurance (Part A), medical insurance (Part B), and prescription drug coverage (Part D) for people age 65 and older and some younger people with disabilities.

FICA is not a savings account in your name. The taxes you pay today fund benefits for current retirees and disabled workers. When you retire, your benefits will be funded by workers paying FICA taxes at that time. The amount you receive in Social Security is based on your earnings history and the age at which you claim, not on how much you paid in.

How FICA appears on your paycheck stub

Your paycheck stub shows FICA taxes in two lines: one for Social Security and one for Medicare. You might see them labeled as "Social Security Tax," "OASDI" (Old-Age, Survivors, and Disability Insurance), "Medicare Tax," or "HI" (Hospital Insurance). The amount withheld depends on your gross pay for that period.

If you receive a bonus, overtime pay, or a lump-sum payment, FICA taxes are withheld on that income too. Some employers also withhold FICA on certain fringe benefits. If you work for multiple employers in the same year, each one withholds FICA on your wages. You cannot avoid the withholding by claiming exemptions — FICA taxes are mandatory for almost all workers, regardless of tax filing status or dependents.

FICA taxes and your Social Security record

Every time you pay FICA taxes, the Social Security Administration records your earnings under your Social Security number. These earnings are used to calculate your future Social Security benefit amount. You need 40 credits of earnings to be covered by Social Security — roughly 10 years of work at current wage levels — to receive retirement benefits.

You can view your earnings record and estimated benefits by creating an account on ssa.gov and accessing your Social Security Statement. The statement shows your lifetime earnings history and estimates what you might receive at different claiming ages. Checking this record periodically helps you catch any errors before you claim benefits.

Frequently Asked Questions

Can I opt out of paying FICA taxes?

No. FICA taxes are mandatory for nearly all workers in the United States. The only exceptions are certain religious groups that have been granted exemptions and some government employees hired before specific dates. If you are a W-2 employee or self-employed, you must pay FICA taxes on your earnings.

What happens to FICA taxes if I change jobs?

Your FICA taxes follow you from job to job. Each employer withholds FICA based on your wages at that job. The Social Security Administration combines all your earnings records under your Social Security number. If you work multiple jobs in one year, you may overpay Social Security tax (because each employer withholds up to the wage cap), but you can claim a credit for the overpayment when you file your tax return.

Do I pay FICA taxes on all income?

FICA taxes explore to wages from employment and net self-employment income. They do not explore to investment income, interest, dividends, capital gains, or rental income (unless you are in the rental business). Certain types of compensation, like some fringe benefits and dependent care information, may also be exempt from FICA.

Is FICA the same as income tax?

No. FICA and federal income tax are two separate withholdings on your paycheck. FICA funds Social Security and Medicare. Federal income tax funds general government operations. You can have different amounts withheld for each. Some people owe income tax but not FICA, or vice versa, depending on their income level and filing status.

What if my employer did not withhold FICA taxes?

Contact your employer when ready and ask them to correct the withholding. If they refuse or go out of business, contact the IRS at 1-800-829-1040 or file Form 8919 (Unclaimed Social Security and Medicare Tax) with your tax return to claim credit for the taxes you should have paid. You may also file a wage complaint with the Department of Labor.