FICA is a payroll tax that funds Social Security and Medicare

FICA stands for Federal Insurance Contributions Act. It is a tax taken directly from your paycheck to fund two federal programs: Social Security and Medicare. You pay FICA every time you receive a wage, and your employer matches your contribution. Unlike income tax, which goes to general government operations, FICA money goes into dedicated trust funds that pay benefits to retirees, disabled workers, and people on Medicare.

FICA appears as two separate line items on your pay stub: one for Social Security and one for Medicare. The Social Security portion funds retirement benefits, survivor benefits for your family if you die, and disability benefits. The Medicare portion funds hospital insurance (Part A) and is the foundation for the other Medicare coverage options you can choose in retirement.

You cannot opt out of FICA. If you are a W-2 employee, your employer withholds it automatically. If you are self-employed, you pay both the employee and employer portions yourself, which is called self-employment tax. The only exception is certain religious groups and some government employees hired before specific dates, but these are rare.

Key Takeaways

  • FICA taxes fund Social Security retirement, survivor, and disability benefits, plus Medicare hospital insurance.
  • Your employer withholds FICA from your paycheck and contributes an equal amount on your behalf.
  • The Social Security portion stops once you reach the annual wage cap, but Medicare tax continues on all earnings.
  • Self-employed people pay both the employee and employer portions of FICA, reported on Schedule SE with your tax return.
  • FICA withholding appears separately from federal income tax on your pay stub and is not refundable.

How much FICA comes out of your paycheck

For 2024, the Social Security portion is 6.2 percent of your wages, and your employer pays another 6.2 percent. The Medicare portion is 1.45 percent of your wages, and your employer pays another 1.45 percent. That means 7.65 percent of your gross pay goes to FICA, plus your employer's matching 7.65 percent.

The Social Security tax has a wage cap. In 2024, you only pay Social Security tax on the first $168,600 of wages. Once you reach that amount in a calendar year, no more Social Security tax is withheld from your remaining paychecks. The Medicare tax has no cap — it applies to all your wages, no matter how much you earn. Some high earners also pay an additional 0.9 percent Medicare tax on wages over a certain threshold, which varies by filing status.

The wage cap changes every year based on national wage growth. If you work for multiple employers in the same year, each one withholds Social Security tax independently. You may end up overpaying if your combined wages exceed the cap. When you file your tax return, you can claim a credit for the overpayment.

The difference between FICA and federal income tax

FICA and federal income tax are two separate deductions. Federal income tax is withheld based on the W-4 form you complete with your employer and goes into the general Treasury. FICA is a fixed percentage that goes into dedicated trust funds. You cannot change how much FICA is withheld, but you can adjust your federal income tax withholding by updating your W-4.

Federal income tax is refundable — if too much is withheld, you get a refund when you file your return. FICA is not refundable in the same way. You build credits toward future Social Security and Medicare benefits instead. The only exception is the overpayment of Social Security tax when you work for multiple employers, which you can claim as a credit on your return.

On your pay stub, you will see these as separate line items. One line shows federal income tax (often labeled "FIT" or "Federal"). Another shows Social Security tax (often labeled "OASDI" or "SS"). A third shows Medicare tax (often labeled "Med" or "Medicare"). All three come out of your gross pay before you receive your net paycheck.

How FICA credits build toward your benefits

Every dollar you pay in FICA earns you a work credit toward Social Security benefits. In 2024, you earn one credit for every $1,730 of wages you pay FICA on, up to four credits per year. You need 40 credits to be fully insured for retirement benefits — that is roughly 10 years of full-time work. You need fewer credits for disability or survivor benefits, depending on your age when you become disabled or die.

These credits are tracked by the Social Security Administration under your Social Security number. You can view your earnings record and estimated benefits by creating an account at ssa.gov. The record shows how much you have paid in FICA each year and estimates what your monthly benefit will be at different ages.

Your benefit amount is based on your highest 35 years of earnings. FICA payments in lower-earning years count less than payments in higher-earning years. If you have fewer than 35 years of earnings, zeros are counted for the missing years, which lowers your benefit. This is why working longer can increase your benefit amount.

Self-employment FICA tax

If you are self-employed, you pay both the employee and employer portions of FICA yourself. This is called self-employment tax and totals 15.3 percent (12.4 percent for Social Security, 2.9 percent for Medicare). You calculate it on Schedule SE and report it with your Form 1040 when you file your tax return.

You only pay self-employment tax on net earnings from self-employment — that is, your business income minus business expenses. You can deduct half of your self-employment tax as a business expense on your return, which reduces your taxable income. The other half is paid with your taxes.

Self-employed people must pay self-employment tax quarterly if they expect to owe $1,000 or more for the year. You do this by making estimated tax payments to the IRS. If you do not pay quarterly and owe a large amount at tax time, you may owe penalties and interest.

What happens to FICA money after it is collected

FICA taxes go into two trust funds: the Social Security Trust Fund and the Medicare Trust Fund. The Social Security fund pays monthly benefits to retirees, disabled workers, and survivors of deceased workers. The Medicare fund pays for hospital stays, skilled nursing care, hospice, and home health services for people age 65 and older and some younger people with disabilities.

These are not savings accounts. The money collected today pays benefits to current beneficiaries. If more money comes in than goes out, the surplus is invested in U.S. Treasury bonds. If more goes out than comes in, the trust fund draws down its reserves. The Social Security trustees publish annual reports on the financial status of both funds.

You do not have a personal FICA account. Your payments do not sit in a separate fund waiting for you to retire. Instead, your FICA payments support the current system, and when you retire, future workers' FICA payments will support your benefits. This is called a pay-as-you-go system.

FICA withholding on different types of income

FICA applies to wages and salaries from a job. It also applies to tips you report to your employer, bonuses, and commissions. It does not explore to investment income, interest, dividends, capital gains, or rental income. It does not explore to gifts, inheritances, or insurance payouts.

Some types of employment are exempt from FICA. Student employees at a school where they are enrolled may be exempt. Certain religious groups with conscientious objections can request exemption. Some government employees hired before specific dates are exempt. If you think you might be exempt, check with your employer or the IRS.

If you receive a Form 1099 for contract work or freelance income, you are responsible for paying self-employment tax on that income. Your 1099 payer does not withhold FICA. You must calculate and pay it yourself when you file your return or through quarterly estimated payments.

Frequently Asked Questions

Can I get a refund of FICA taxes I paid?

No, FICA is not refundable like federal income tax. The only exception is if you overpaid Social Security tax because you worked for multiple employers and your combined wages exceeded the annual cap. You can claim a credit for the overpayment on your tax return, which reduces your federal income tax owed.

What if I did not pay enough FICA because I was underpaid or misclassified?

If your employer did not withhold FICA when they should have, you may owe self-employment tax on that income. You can report the misclassification to the IRS using Form SS-8. The IRS will investigate and may require your employer to pay back taxes and penalties. You should also contact your state labor department.

Does FICA count toward my income tax refund?

No. FICA and federal income tax are separate. FICA does not reduce your federal income tax liability. However, if you overpay federal income tax, you get a refund. If you overpay Social Security tax due to multiple employers, you can claim a credit on your return.

What if I work part-time or have irregular income?

FICA is withheld on every paycheck, regardless of how many hours you work or how often you are paid. If you are self-employed with irregular income, you still owe self-employment tax on your net earnings for the year. You can make quarterly estimated payments or pay the full amount when you file your return.

Does FICA explore if I work for a nonprofit or government agency?

Most nonprofit employees pay FICA. Federal government employees hired after 1983 pay FICA. State and local government employees may or may not pay FICA depending on when they were hired and their employer's election. Ask your payroll department which taxes are withheld from your check.