FICA taxes fund Social Security and Medicare, two federal insurance programs

FICA stands for Federal Insurance Contributions Act. The taxes you pay under FICA go into two separate trust funds: one for Social Security and one for Medicare. These are not general government funds — they are dedicated to specific programs that pay benefits to workers, retirees, disabled people, and their families.

When you see FICA deductions on your paycheck, you are funding your own future benefits and those of people currently receiving them. The money does not sit in an account with your name on it. Instead, current workers' FICA taxes pay current beneficiaries, and when you retire or become unable to work, future workers' taxes will help pay your benefits.

Self-employed people pay FICA taxes too, though they pay both the employee and employer portions — a total of 15.3 percent of net self-employment income, split between Social Security and Medicare.

Key Takeaways

  • Social Security FICA taxes (6.2 percent of wages) pay retirement benefits, survivor benefits for families of deceased workers, and disability benefits for workers who cannot work.
  • Medicare FICA taxes (1.45 percent of wages) pay for hospital insurance, doctor visits, and other medical services for people age 65 and older, and some younger people with disabilities.
  • Your employer matches your FICA contribution dollar for dollar, so the total FICA cost to fund these programs is split between workers and employers.
  • FICA taxes are mandatory for almost all workers in the United States, including immigrants with work authorization and people earning very small amounts.

Social Security benefits paid from FICA taxes

Social Security FICA taxes (6.2 percent of your wages) fund three types of benefits. Retirement benefits go to workers who reach their full retirement age, which ranges from 66 to 67 depending on birth year. You can claim as early as 62, but your monthly payment will be permanently lower.

Survivor benefits go to the spouse, children, and dependent parents of a worker who dies. A widow or widower can receive benefits as early as 60, or at any age if caring for a child under 16. Children of a deceased worker can receive benefits until age 19 if still in high school, or age 18 if not in school.

Disability benefits go to workers under full retirement age who have a medical condition expected to last at least 12 months or result in death, and who have worked long enough to be insured. Family members of a disabled worker — spouse, children, and in some cases parents — may also receive benefits based on that worker's record.

Medicare benefits paid from FICA taxes

Medicare FICA taxes (1.45 percent of your wages) fund hospital insurance and medical coverage for people age 65 and older. Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health services. Part B covers doctor visits, outpatient services, medical equipment, and preventive care.

People under 65 can also receive Medicare if they have been on Social Security disability for 24 months, or if they have end-stage renal disease or ALS. FICA taxes fund their coverage the same way they fund coverage for older people.

Medicare also includes Part D, which covers prescription drugs, though Part D is funded differently — through general revenue and beneficiary premiums rather than FICA taxes alone. Part C, or Medicare Advantage, is an alternative way to receive Parts A and B coverage through a private insurance company, also funded through FICA and beneficiary premiums.

How FICA tax rates are set and who pays them

Congress sets FICA tax rates by law. The Social Security portion is 6.2 percent for employees and 6.2 percent for employers (12.4 percent total). The Medicare portion is 1.45 percent for employees and 1.45 percent for employers (2.9 percent total). These rates have not changed since 1990 for Social Security and 1985 for Medicare.

An additional 0.9 percent Medicare tax applies to wages over $200,000 for single filers and $250,000 for married couples filing jointly. This extra tax is paid by the employee only, not matched by the employer.

FICA taxes are withheld from paychecks automatically. Self-employed people pay both portions themselves when they file taxes. Government employees hired before 1984, railroad workers, and some religious groups have different arrangements, but most workers in the United States pay FICA taxes on all wages.

Why FICA is separate from income tax

FICA taxes are distinct from federal income tax, though both are withheld from your paycheck. Income tax goes into the general Treasury and funds all federal spending — defense, infrastructure, courts, and so on. FICA taxes go only to Social Security and Medicare trust funds.

This separation matters because Social Security and Medicare are structured as insurance programs, not welfare. You earn the right to benefits by paying FICA taxes while working. The amount you receive is based partly on how much you paid in and how long you worked, not on need or income level.

However, the two programs are not fully funded by FICA taxes alone. Social Security's trust fund is projected to be depleted around 2033 if Congress does not change the law. Medicare's Hospital Insurance Trust Fund faces a similar timeline. When a trust fund runs out, incoming FICA taxes can still pay a portion of benefits, but not the full amount promised.

What happens to FICA taxes you pay

FICA taxes you pay do not accumulate in a personal account. Instead, they go into the Social Security and Medicare trust funds, which pay current beneficiaries. The amount you eventually receive depends on your earnings history, age when you claim, and life expectancy — not on the exact amount you paid in.

You can view your Social Security earnings record and benefit estimate by creating an account on ssa.gov. This record shows how much you have paid into Social Security and estimates what your retirement, disability, or survivor benefits would be. The estimate updates each year as you earn more wages.

If you work and receive Social Security retirement benefits before your full retirement age, your benefits are reduced by $1 for every $2 you earn above a certain limit (which changes yearly). Once you reach full retirement age, there is no earnings limit.

Frequently Asked Questions

Can I get my FICA taxes back if I don't use Social Security or Medicare?

No. FICA taxes are mandatory for almost all workers, and you cannot opt out or get a refund. Even if you never claim Social Security or Medicare benefits, the taxes you paid fund current beneficiaries. If you die before claiming benefits, your family may be able to receive survivor benefits based on your work record.

What if I worked under the table and didn't pay FICA taxes?

Work without FICA taxes does not count toward Social Security benefits. You need 40 work credits (roughly 10 years of covered work) to be insured for retirement or disability benefits. If you have gaps in your earnings record, your benefit amount will be lower. You can check your record on ssa.gov to see what you have earned credit for.

Do FICA taxes pay for welfare or unemployment benefits?

No. FICA taxes fund only Social Security and Medicare. Unemployment insurance is funded by separate employer taxes. Other welfare programs like SNAP or Medicaid are funded through general income tax revenue and state funds. Social Security and Medicare are insurance programs you pay into while working.

Why do I pay FICA taxes if I'm not old enough to use Medicare yet?

You pay FICA taxes to build your insured status for disability and survivor benefits, which are available at any age if you meet the work and medical requirements. You are also building your record for future retirement and Medicare benefits. FICA taxes are a mandatory contribution to these programs, not a choice based on current use.

Do immigrants have to pay FICA taxes?

Immigrants with work authorization and a valid Social Security number must pay FICA taxes like any other worker. Undocumented immigrants who work using an Individual Taxpayer Identification Number (ITIN) may pay income tax but typically do not pay FICA taxes. Some undocumented workers do pay FICA taxes if they use a false or borrowed Social Security number, though this creates legal risk.