FICA tax is the money taken from your paycheck for Social Security and Medicare

FICA stands for Federal Insurance Contributions Act. It is a payroll tax that funds two programs: Social Security (which pays retirement, disability, and survivor benefits) and Medicare (which pays for health care for people 65 and older, and some younger people with disabilities). Your employer withholds FICA tax directly from your paycheck, and your employer also contributes a matching amount on your behalf.

FICA appears as two separate line items on your pay stub: one labeled Social Security and one labeled Medicare. The Social Security portion funds retirement accounts, disability insurance, and survivor benefits. The Medicare portion funds hospital insurance (Part A) and is the foundation for the other Medicare coverage types.

Unlike income tax, which varies based on your filing status and deductions, FICA tax is a flat percentage of your gross wages with no deductions or exemptions. This means nearly every worker in the United States pays it, whether you are a W-2 employee or self-employed.

Key Takeaways

  • FICA tax funds Social Security retirement benefits, disability benefits, survivor benefits, and Medicare health insurance.
  • Your employer withholds 6.2% of your wages for Social Security and 1.45% for Medicare, and contributes an equal amount on your behalf.
  • Self-employed workers pay both the employee and employer portions, totaling 15.3% for FICA tax.
  • FICA tax is withheld from every paycheck and has no income threshold — you pay it on all wages, though Social Security tax stops after you earn a certain amount each year.

How much FICA tax comes out of your paycheck

The employee portion of FICA tax is 7.65% of your gross wages. This breaks down as 6.2% for Social Security and 1.45% for Medicare. Your employer withholds this amount before you receive your paycheck.

Your employer also pays 7.65% on your behalf — the same rate as the employee portion. This employer contribution does not appear on your pay stub, but it is part of your total FICA tax cost to the system.

There is one important limit: the Social Security portion (6.2%) only applies to wages up to a certain amount each year. This amount changes annually. Once you earn past that threshold in a calendar year, no more Social Security tax is withheld from your remaining paychecks. Medicare tax (1.45%), however, has no wage limit and continues on all your earnings.

If you earn more than $200,000 as a single filer (or $250,000 if married filing jointly), an additional 0.9% Medicare tax is withheld on the amount above that threshold. This extra tax funds the Medicare program and has no wage cap.

The difference between FICA tax and income tax

FICA tax and federal income tax are two separate withholdings on your paycheck, and they fund different programs. FICA tax is a fixed percentage with no deductions — it applies to all wages at the same rate. Federal income tax, by contrast, is calculated based on your W-4 form, your filing status, and the number of dependents you claim.

Income tax goes to the general Treasury and funds federal government operations. FICA tax goes into dedicated trust funds for Social Security and Medicare. You cannot reduce FICA tax through deductions or credits the way you can with income tax.

Another key difference: FICA tax is a true insurance contribution. The money you pay in creates a record of earnings that determines your future Social Security and Medicare benefits. Income tax does not create any benefit entitlement — it straightforward funds government spending.

How FICA tax works if you are self-employed

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

Self-employed workers pay self-employment tax on net earnings from self-employment — your business income minus business expenses. You do not pay self-employment tax on wages from a job where you are a W-2 employee; you only pay it on income from your own business or freelance work.

The IRS allows you to deduct half of your self-employment tax as a business expense when you calculate your adjusted gross income. This deduction reduces your taxable income but does not reduce the amount of self-employment tax you owe.

Where your FICA tax money goes

The Social Security portion of your FICA tax (6.2%) goes into the Social Security Trust Fund. This fund pays monthly benefits to retirees, workers who are disabled, and the surviving family members of workers who have died. The amount you receive in retirement is based on your earnings record — the wages you paid FICA tax on throughout your working years.

The Medicare portion of your FICA tax (1.45%) goes into the Hospital Insurance Trust Fund, which covers Medicare Part A benefits. Part A covers inpatient hospital care, skilled nursing facility care, hospice care, and some home health services. The additional 0.9% Medicare tax on high earners also goes into this fund.

These are not savings accounts in your name. FICA tax is a pay-as-you-go system: the taxes paid by current workers fund the benefits paid to current retirees and beneficiaries. Your future benefits will be funded by taxes paid by future workers.

Why FICA tax appears on every paycheck

FICA tax is mandatory for nearly all workers in the United States. If you earn wages as an employee, your employer is required by law to withhold FICA tax and send it to the IRS. There are very few exceptions: some government employees hired before specific dates, some religious workers who have filed for exemption, and some nonresident aliens on certain visas do not pay FICA tax.

The withholding happens automatically — you do not have to do anything to trigger it. Your employer calculates the amount based on your gross wages and deducts it before paying you. This is different from income tax withholding, which depends on the W-4 form you complete.

Because FICA tax creates your Social Security and Medicare record, the IRS tracks every dollar you pay. This record is what determines whether you have worked long enough to receive benefits and how much your benefit will be.

Understanding your FICA tax record

Every time you pay FICA tax, that payment is recorded under your Social Security number. The IRS uses this record to calculate your future Social Security benefits and your Medicare may be able to access. You can view your earnings record by creating an account on ssa.gov and viewing your Social Security Statement.

Your Social Security Statement shows your lifetime earnings, the amount of FICA tax you have paid, and an estimate of your future retirement, disability, and survivor benefits. It also shows how much you have paid into Medicare. Reviewing this statement periodically helps you catch errors — if your employer failed to report your wages or reported them under the wrong name or number, you can correct it.

If you have worked under multiple names or Social Security numbers, your earnings may be split across accounts. This can reduce your benefit amount. The Social Security Administration can help you consolidate these records if you contact them with proof of your identity and work history.

Frequently Asked Questions

Can I opt out of paying FICA tax?

No, FICA tax is mandatory for nearly all workers. A very small number of religious groups and some government employees hired before specific dates have exemptions, but most workers cannot opt out. If you believe you may have access to for an exemption, contact the IRS or Social Security Administration to learn about your specific situation.

What happens to FICA tax if I change jobs?

Your FICA tax record follows you automatically. Each employer reports your wages and FICA tax payments to the IRS under your Social Security number. When you change jobs, the new employer begins withholding FICA tax, and it is added to your existing record. You do not need to do anything — the system tracks all your earnings across all your jobs.

Do I get a refund if too much FICA tax was withheld?

FICA tax is not refundable like income tax. If you overpaid Social Security tax because you worked multiple jobs or changed jobs mid-year, you may get a credit on your tax return, but you will not receive a refund. Medicare tax overpayment is handled differently and may result in a credit against future Medicare premiums.

Does FICA tax explore to tips and bonuses?

Yes, FICA tax applies to all wages, including tips and bonuses. Your employer withholds FICA tax on your regular pay, bonuses, and reported tips. If you receive cash tips that you do not report to your employer, you are still responsible for paying FICA tax on them when you file your tax return.

What is the wage limit for Social Security tax in 2024?

The Social Security wage base changes each year. You can find the current year's limit on the Social Security Administration website or your employer's payroll information. Once you earn past this amount in a calendar year, your employer stops withholding the 6.2% Social Security tax, though Medicare tax continues on all remaining earnings.