FICA is the payroll tax that funds Social Security and Medicare

FICA stands for the Federal Insurance Contributions Act. It is a payroll tax that your employer withholds from your paycheck every pay period. The money goes into two separate programs: Social Security and Medicare. You will see FICA broken into two line items on your pay stub — one labeled Social Security tax and one labeled Medicare tax.

FICA is not optional, and it is not based on your income level or filing status. If you are an employee and earn wages, FICA comes out automatically. Self-employed people pay FICA too, though they handle it differently on their tax return. The amount withheld is a fixed percentage of your gross pay, calculated the same way for nearly every worker.

The reason FICA exists is that Social Security and Medicare are insurance programs, not welfare programs. You pay in while you work, and the money funds benefits for current retirees, disabled workers, and people on Medicare. When you retire or become disabled, your own FICA contributions create your may be able to access for those benefits.

Key Takeaways

  • FICA withholds 6.2% of your wages for Social Security and 1.45% for Medicare, totaling 7.65%, and your employer matches that amount.
  • Social Security tax only applies to the first $168,600 of your annual wages in 2024, but Medicare tax applies to all wages with no cap.
  • Self-employed workers pay both the employee and employer share of FICA, which is 15.3% total, reported on Schedule SE with your tax return.
  • FICA withholding is separate from federal income tax withholding and cannot be reduced by claiming exemptions on your W-4.
  • The money you pay into FICA now creates your future Social Security and Medicare benefits, not a personal savings account.

How much FICA comes out of your paycheck

Your employer withholds 6.2% of your gross wages for Social Security and 1.45% for Medicare. That is 7.65% total from your paycheck. Your employer then matches that amount and sends both shares to the IRS — so the total FICA cost to your employer is 15.3% of your wages, though you only see half of it on your pay stub.

The Social Security portion has a wage cap. In 2024, you only pay Social Security tax on the first $168,600 of your annual wages. Once you earn more than that in a calendar year, Social Security tax stops coming out of your paycheck for the rest of the year. Medicare tax has no cap — it applies to every dollar you earn, no matter how much you make.

If you earn over $200,000 as a single filer (or $250,000 if married filing jointly), an additional 0.9% Medicare tax applies to the wages above that threshold. This is called the Additional Medicare Tax, and it is withheld automatically if your employer knows your filing status. You will see it as a separate line item on your pay stub labeled "Additional Medicare Tax" or "Medicare Tax on High Earners."

Why FICA cannot be reduced or avoided

FICA is not the same as federal income tax withholding. You cannot reduce FICA by claiming exemptions on your W-4 form or by changing your withholding elections. FICA is a fixed-rate tax on wages, and it applies to nearly every employee in the United States, regardless of how much you earn or what deductions you claim.

The only workers who do not pay FICA are certain religious groups that have been granted exemptions by the IRS, some government employees hired before specific dates, and a small number of other narrow categories. If you are a typical W-2 employee, FICA comes out of your paycheck, period.

Some people mistakenly think they can avoid FICA by being classified as an independent contractor instead of an employee. This is not true. Self-employed people pay FICA under a different name — it is called self-employment tax — but the rate is actually higher because they pay both the employee and employer share. The total is 15.3% of net self-employment income.

How self-employed workers pay FICA

If you are self-employed, you do not have an employer to withhold FICA for you. Instead, you calculate and pay self-employment tax when you file your annual tax return using Schedule SE. Self-employment tax covers both Social Security and Medicare, just like FICA does for employees.

The self-employment tax rate is 15.3% — 12.4% for Social Security and 2.9% for Medicare. This is higher than the 7.65% you see withheld from a W-2 paycheck because you are paying both the employee and employer share. However, you get a deduction for half of your self-employment tax when you calculate your adjusted gross income, which reduces your taxable income slightly.

Self-employed workers with net earnings of $400 or more must file Schedule SE and pay self-employment tax. If you have both W-2 wages and self-employment income, you calculate self-employment tax only on the self-employment income. The Social Security wage cap still applies — once your combined W-2 wages and self-employment income reach $168,600 in 2024, you stop paying the 12.4% Social Security portion on additional earnings.

Where your FICA money goes

The FICA you pay does not go into a personal account with your name on it. Instead, it goes into the Social Security Trust Fund and the Medicare Trust Fund. The government uses that money to pay current benefits to people who are retired, disabled, or on Medicare. Your FICA contributions create your own future may be able to access for those programs, but the money is not set aside for you personally.

Social Security uses FICA revenue to pay retirement benefits, disability benefits, and survivor benefits to the families of workers who die. Medicare uses FICA revenue to pay for hospital insurance (Part A) for people age 65 and older and for some younger people with disabilities. The amount of your future benefit is based on your earnings history — how much you paid in over your working years — not on how much you paid in total.

Both trust funds face long-term funding challenges because the population is aging and fewer workers are paying in relative to the number of people drawing benefits. Congress periodically discusses changes to FICA rates, the wage cap, or benefit formulas, but no changes have been made to the current structure in recent years.

FICA on your tax return and W-2 form

Your employer reports the FICA they withheld from your paycheck on your W-2 form, which you receive by January 31 each year. Box 4 shows Social Security tax withheld, and Box 6 shows Medicare tax withheld. These amounts are for your records and to verify that your employer sent the correct amount to the IRS.

You do not claim FICA as a deduction or credit on your tax return. FICA withholding is already accounted for in the W-2 boxes, and the IRS uses those boxes to verify that you paid the correct amount. If your employer withheld too much or too little, you will not get a refund or owe additional tax — the FICA system is separate from your income tax calculation.

If you are self-employed, you report self-employment tax on Schedule SE and then transfer the amount to your Form 1040. You do get to deduct half of your self-employment tax as an adjustment to income, which lowers your taxable income. This partially offsets the fact that self-employed workers pay both the employee and employer share.

Common questions about FICA withholding

Many people wonder whether FICA will still be available when they retire. Social Security and Medicare are funded by current FICA contributions, and both programs have been in place for decades. The programs are not going away, though Congress may change the benefit formulas, the wage cap, or the tax rate at some point in the future. You can view your estimated Social Security benefit by creating an account on ssa.gov.

Another common question is whether you can opt out of FICA. The answer is no, except in the narrow religious exemptions mentioned earlier. FICA is mandatory for all employees and self-employed workers. If your employer is not withholding FICA, that is a serious problem — report it to the IRS using Form 13909.

Frequently Asked Questions

Why does FICA come out even if I claim exempt from federal income tax?

FICA and federal income tax are two separate taxes. Claiming exempt from federal income tax withholding on your W-4 only stops income tax from being withheld — it does not affect FICA. FICA is a fixed-rate tax on wages and cannot be reduced by W-4 elections. It comes out of every paycheck for every employee.

What happens to FICA if I change jobs?

FICA continues to be withheld from your paycheck at each job. If you work multiple jobs in the same year, each employer withholds FICA separately. The Social Security portion stops once your combined wages across all jobs reach $168,600 in 2024, but you may have overpaid Social Security tax if one employer did not know about your other income. You can claim a credit for the overpayment on your tax return.

Do I pay FICA on tips?

Yes. Tips are considered wages for FICA purposes. You must report all tips to your employer, and FICA is withheld on the tip income just like it is on your base wages. If you do not report tips, you are not building Social Security and Medicare credits, which can affect your future benefits.

Can I get a refund of FICA taxes I paid?

FICA is not refundable like income tax can be. However, if you overpaid Social Security tax because you worked multiple jobs or changed jobs during the year, you can claim a credit on your tax return. You cannot get a refund of Medicare tax — it is withheld and kept by the Medicare Trust Fund.

What if my employer did not withhold FICA?

Report it to the IRS when ready using Form 13909, which is available on irs.gov. Your employer is required by law to withhold and pay FICA. If they did not, you may still owe self-employment tax on those wages, and you should contact a tax professional or the IRS for guidance on your specific situation.