FICA tax is the Social Security and Medicare tax withheld from your paycheck
FICA stands for Federal Insurance Contributions Act. It is a payroll tax that funds two programs: Social Security (retirement, disability, and survivor benefits) and Medicare (health insurance for people 65 and older, and some younger people with disabilities). Your employer withholds FICA tax from each paycheck, and you contribute a percentage of your wages.
FICA has two parts. The Social Security portion is 6.2% of your wages, up to a yearly earnings cap (the cap changes each year). The Medicare portion is 1.45% of all your wages with no cap. If you are self-employed, you pay both the employee and employer share, which totals 15.3% for Social Security (up to the cap) and 2.9% for Medicare.
You will see FICA deductions on your pay stub labeled as "Social Security" and "Medicare," or sometimes as "FICA" or "OASDI" (Old-Age, Survivors, and Disability Insurance). These are separate from federal income tax withholding, which is a different deduction.
Key Takeaways
- FICA tax funds Social Security and Medicare through automatic payroll deductions of 6.2% for Social Security and 1.45% for Medicare.
- Your employer withholds FICA from your paycheck and sends it to the federal government; self-employed people pay the full amount themselves.
- Social Security tax has an annual earnings cap, but Medicare tax applies to all wages with no limit.
- FICA contributions are tracked on your Social Security record and determine your future benefits.
How much FICA tax comes out of your paycheck
The amount depends on your gross wages and the current tax rates. For 2024, the Social Security rate is 6.2% of wages up to $168,600 per year. Once you earn more than that in a calendar year, no more Social Security tax is withheld. The Medicare rate is 1.45% of all wages with no earnings limit.
If you earn $50,000 per year, your FICA withholding would be roughly $3,825 annually: $3,100 for Social Security (6.2% of $50,000) and $725 for Medicare (1.45% of $50,000). These amounts come out of your paycheck before you receive it, so they reduce your take-home pay.
High earners pay an additional Medicare tax of 0.9% on wages above $200,000 (single filers) or $250,000 (married filing jointly). This extra tax was added in 2013 and applies to both employees and self-employed people.
Why FICA tax exists and who it funds
FICA was created in 1935 as part of the Social Security Act. The idea was that workers and employers would contribute during working years, and those contributions would fund benefits for retirees, disabled workers, and survivors of deceased workers. Medicare was added to FICA in 1965.
The money you pay in FICA tax does not sit in a personal account with your name on it. Instead, current FICA contributions pay current benefits to people already receiving Social Security and Medicare. The system is "pay-as-you-go," meaning today's workers fund today's retirees. When you retire, future workers' FICA contributions will fund your benefits.
Social Security serves about 68 million people, including retirees, disabled workers, and survivors. Medicare serves about 66 million people, mostly those 65 and older. FICA tax is the primary funding source for both programs.
How FICA tax affects your Social Security benefits later
Your FICA contributions are recorded under your Social Security number and tracked by the Social Security Administration. The amount of Social Security retirement benefit you receive depends partly on how much you paid into the system over your working years. Generally, the more you earn and contribute, the higher your benefit will be at retirement.
To receive Social Security retirement benefits, you need to earn 40 credits, which typically takes about 10 years of work. Each year you earn a certain amount (in 2024, $1,730 per quarter), you earn one credit, up to four credits per year. FICA contributions are what earn these credits.
You can view your Social Security record and estimated benefits by creating an account at ssa.gov. The Social Security Administration sends statements showing your earnings history and projected retirement benefit amount based on your current FICA contributions.
Self-employed people and FICA tax
If you are self-employed, you pay FICA tax through the self-employment tax system. You pay both the employee share (6.2% for Social Security, 1.45% for Medicare) and the employer share (another 6.2% for Social Security, another 1.45% for Medicare), totaling 15.3% for Social Security (up to the annual cap) and 2.9% for Medicare.
Self-employed people report self-employment tax on Schedule SE (Form 1040) when filing their federal income tax return. You can deduct half of your self-employment tax as a business expense, which reduces your taxable income. You pay self-employment tax quarterly through estimated tax payments, or you can pay it all when you file your annual return.
Net earnings from self-employment of $400 or more require you to file Schedule SE and pay self-employment tax. If you have both W-2 wages and self-employment income, the calculation is more complex, and you may want to consult a tax professional.
FICA tax versus federal income tax
FICA tax and federal income tax are two separate deductions on your paycheck. FICA tax is a fixed percentage (6.2% for Social Security up to the cap, 1.45% for Medicare) and funds Social Security and Medicare. Federal income tax is withheld based on your W-4 form and your tax bracket, and it funds general government operations.
You will see both listed separately on your pay stub. FICA tax does not change based on how many dependents you claim or your filing status, but federal income tax withholding does. Some people owe federal income tax at tax time, while others receive a refund; FICA tax is not refundable in the same way, though you can dispute errors on your Social Security record.
State and local income taxes are also separate from FICA. Not all states have income tax, and rates vary by location. Your employer withholds these separately if they explore to you.
What happens if you overpay FICA tax
If you work for multiple employers in the same year and earn more than the Social Security wage base, you may overpay Social Security tax. For example, if you work two jobs and earn $100,000 at each, both employers will withhold Social Security tax on your full wages, even though you should only pay on $168,600 total (the 2024 cap).
You can claim a credit for the overpayment when you file your federal income tax return. You report the overpayment on Form 1040, and the IRS will refund the excess Social Security tax you paid. This is one of the few situations where FICA tax can be refunded.
Medicare tax overpayment is less common because there is no earnings cap. However, if you have both W-2 wages and self-employment income, you might overpay the additional 0.9% Medicare tax. You can also claim a credit for this on your tax return.
Frequently Asked Questions
Can I opt out of paying FICA tax?
No, FICA tax is mandatory for all employees and self-employed people. There are narrow exceptions for certain religious groups and some government employees, but most workers cannot opt out. FICA contributions are required by federal law.
Is FICA tax the same as payroll tax?
FICA is one type of payroll tax. Payroll tax is a broad term that includes FICA (Social Security and Medicare), federal income tax withholding, and sometimes state and local taxes. All of these are withheld from your paycheck by your employer.
What if I never worked long enough to earn 40 credits for Social Security?
If you do not have 40 credits, you will not receive a Social Security retirement benefit based on your own work record. However, you may be able to receive benefits as a spouse or survivor of someone who did earn 40 credits. Your family members may also be able to receive benefits on your record if you become disabled or die.
Does FICA tax go into a personal account with my name on it?
No, FICA tax does not fund a personal savings account. Your contributions pay current benefits to current retirees and disabled workers. When you retire, future workers' FICA contributions will pay your benefits. The Social Security Administration tracks your earnings history to calculate your benefit amount, but the money itself is not set aside for you individually.
Why is there a Social Security wage cap but no Medicare cap?
The Social Security wage cap was set by Congress to limit the maximum benefit amount and to reflect the program's original design as insurance for average workers. Medicare has no cap because it is structured as universal health insurance for older adults and some disabled people, regardless of income. The two programs have different funding structures and benefit formulas.