FICA withholding is the money your employer takes from each paycheck for Social Security and Medicare

FICA withholding is a percentage of your gross pay that your employer deducts before you receive your paycheck. The money goes directly to the federal government to fund two programs: Social Security and Medicare. You do not choose whether this happens — it is required by law for almost all employees in the United States.

Your employer calculates the withholding amount using your W-4 form, which you fill out when you start a job. The withholding rate is set by federal law and does not change based on how much you earn, though the total dollar amount withheld increases as your pay increases.

FICA stands for the Federal Insurance Contributions Act. It is separate from income tax withholding, which is another deduction on your paycheck that goes to federal, state, or local income taxes.

Key Takeaways

  • FICA withholding consists of 6.2% for Social Security and 1.45% for Medicare, taken from your paycheck before you see it.
  • Your employer also contributes an equal amount (6.2% Social Security and 1.45% Medicare) on your behalf, which you do not see on your paycheck.
  • If you earn over a certain threshold, an additional 0.9% Medicare tax applies to your wages, and your employer does not match this extra amount.
  • FICA withholding is mandatory and does not depend on your tax filing status or number of dependents the way income tax withholding does.
  • You can see the exact FICA amounts withheld on your pay stub and on your annual W-2 form.

How much FICA tax comes out of your paycheck

The standard FICA rate is 15.3% of your wages total, but you only pay half of that directly. You pay 7.65% from your paycheck: 6.2% for Social Security and 1.45% for Medicare. Your employer pays the other 7.65% on your behalf, though this amount does not appear on your paycheck.

If you earn more than a certain amount in a year, you owe an additional Medicare tax of 0.9%. This threshold varies by filing status — it is $200,000 for single filers, $250,000 for married filing jointly, and $125,000 for married filing separately. Unlike the standard Medicare tax, your employer does not contribute to this additional tax.

The Social Security portion (6.2%) only applies to wages up to a certain cap, which changes each year. Once you reach that cap in a calendar year, no more Social Security tax is withheld from your remaining paychecks that year. Medicare tax (1.45% plus the additional 0.9% if applicable) has no cap and applies to all your wages.

Where FICA withholding goes

The 6.2% Social Security portion funds the Social Security program, which provides retirement benefits, disability benefits, and survivor benefits to workers and their families. The 1.45% Medicare portion funds Medicare Part A, which covers hospital insurance, skilled nursing, hospice, and home health care.

These are not savings accounts in your name. The money collected from current workers funds benefits paid to current retirees and beneficiaries. When you retire or become unable to work, your own benefits will be funded by FICA taxes withheld from future workers' paychecks.

You can view a record of your FICA contributions on your Social Security statement, which you can access through the Social Security Administration website. This statement shows your estimated benefits based on your contribution history.

How FICA withholding appears on your pay stub

Your pay stub breaks down FICA withholding into separate line items. You will see "Social Security Tax" or "OASDI" (Old Age, Survivors, and Disability Insurance) listed separately from "Medicare Tax." Each line shows the amount withheld that pay period and often shows a year-to-date total as well.

If you have reached the Social Security wage cap for the year, the Social Security line will show zero withholding for the remaining pay periods, even though Medicare tax continues. The additional 0.9% Medicare tax, if you owe it, may appear as a separate line labeled "Additional Medicare Tax" or "Medicare Tax on Wages Over Threshold."

Your W-2 form, which you receive each January, summarizes your annual FICA withholding. Box 4 shows total Social Security tax withheld, and Box 6 shows total Medicare tax withheld. These amounts should match what you saw on your pay stubs throughout the year.

FICA withholding for self-employed workers

If you are self-employed, you pay both the employee and employer portions of FICA tax, for a total of 15.3%. This is called self-employment tax. You calculate and pay it yourself, usually quarterly, rather than having an employer withhold it from a paycheck.

Self-employed workers report self-employment tax on Schedule SE (Form 1040), which is part of the federal income tax return. You can deduct half of your self-employment tax as a business expense on your tax return, which reduces your taxable income.

The Social Security portion of self-employment tax also has an annual cap, just like employee FICA withholding. Once you reach the cap, you stop paying the Social Security portion but continue paying the Medicare portion for the rest of the year.

What happens if you work multiple jobs

If you have more than one job, each employer withholds FICA tax based on your wages at that job alone. You could end up paying more Social Security tax than necessary if your combined wages from all jobs exceed the annual cap.

For example, if you earn $170,000 at one job and $30,000 at another, and the Social Security cap for that year is $168,600, you would pay Social Security tax on all $170,000 at the first job (up to the cap) and then also pay it on the $30,000 at the second job, even though your total wages exceed the cap. You can claim a credit for the overpayment on your federal income tax return.

Medicare tax has no cap, so there is no overpayment issue with Medicare withholding across multiple jobs. However, if your total wages exceed the threshold for additional Medicare tax, you may owe that additional 0.9% tax at tax time.

FICA withholding and your tax refund

FICA withholding does not affect your income tax refund or what you owe at tax time. FICA taxes and income taxes are separate systems. Your income tax withholding (based on your W-4 form) determines whether you get a refund or owe money when you file your return. FICA withholding is straightforward sent to Social Security and Medicare and does not come back to you unless you overpaid due to multiple jobs.

If you overpaid Social Security tax because you worked multiple jobs, you claim the overpayment as a credit on Form 1040 when you file your return. This reduces your income tax liability and may result in a larger refund or a smaller amount owed.

Frequently Asked Questions

Can I opt out of FICA withholding?

No. FICA withholding is mandatory for almost all employees. The only exceptions are certain religious groups that have been granted exemptions by the IRS, some federal employees hired before 1984, and a few other narrow categories. If you are a typical employee, you cannot opt out.

Why does my FICA withholding stop partway through the year?

The Social Security portion of FICA tax only applies to wages up to an annual cap. Once you earn that amount in a calendar year, your employer stops withholding the 6.2% Social Security tax from your remaining paychecks. Medicare tax (1.45%) continues all year with no cap. The cap amount changes each year.

Is FICA tax the same as income tax?

No. FICA tax and income tax are two separate withholdings on your paycheck. FICA funds Social Security and Medicare. Income tax funds general federal government operations and may also fund state or local government. Both appear on your pay stub as separate line items.

What if my employer did not withhold FICA tax?

Contact your employer when ready. FICA withholding is required by law, and your employer is responsible for sending it to the government. If your employer failed to withhold, you may still owe the tax at tax time, and your employer could face penalties. Report the issue to the IRS if your employer does not correct it.

Do I get FICA tax back when I file my return?

FICA tax does not come back on your income tax return unless you overpaid due to working multiple jobs. In that case, you claim the overpayment as a credit on your return. Otherwise, FICA tax is a permanent contribution to Social Security and Medicare and is not refunded.