FICA Social Security tax is the money taken from your paycheck to fund the Social Security retirement, disability, and survivor benefits program

FICA stands for Federal Insurance Contributions Act. The Social Security portion of FICA is a payroll tax — money your employer withholds from your wages and sends to the federal government. In 2024, the Social Security tax rate is 6.2 percent of your gross pay, up to a wage cap that changes each year. Your employer also pays 6.2 percent on your behalf, for a total of 12.4 percent. If you are self-employed, you pay both portions yourself.

The money does not go into a personal account with your name on it. Instead, it funds current Social Security payments to people who are retired, disabled, or the surviving family members of workers who have died. The amount you receive later depends on how much you earned during your working years and when you claim benefits, not on how much tax you paid in.

FICA also includes a separate Medicare tax of 2.9 percent (1.45 percent from you, 1.45 percent from your employer). This article focuses on the Social Security portion only.

Key Takeaways

  • Social Security tax is 6.2 percent of your wages, withheld by your employer, up to an annual wage cap that is adjusted each year.
  • Your employer pays an equal 6.2 percent on your behalf; self-employed people pay the full 12.4 percent themselves.
  • The tax funds current benefits for retirees, disabled workers, and survivors, not a personal savings account in your name.
  • You must have earned 40 work credits (roughly 10 years of work) to be may be able to access for Social Security benefits later.

How the Social Security wage cap works

Not all of your income is subject to Social Security tax. The government sets a wage cap each year — in 2024, it is $168,600. You pay 6.2 percent Social Security tax only on earnings up to that amount. Anything you earn above the cap is not taxed for Social Security.

This means a person earning $168,600 pays Social Security tax on the full amount, but a person earning $250,000 pays it only on the first $168,600. The cap increases most years to keep pace with average wage growth. The Medicare portion of FICA has no wage cap, so high earners continue to pay 2.9 percent Medicare tax on all income above the Social Security limit.

Why you pay Social Security tax

Social Security tax funds a federal insurance program, not a savings plan. When you work and pay into Social Security, you earn credits toward future benefits. You need 40 credits to be may be able to access for retirement benefits; most people earn four credits per year, so 10 years of work is the typical requirement.

The program also pays benefits to workers who become disabled before retirement age and to the family members of workers who die. Your family members may receive survivor benefits even if you never claimed retirement benefits yourself, as long as you had earned enough credits at the time of your death.

The difference between FICA and income tax

FICA and federal income tax are two separate withholdings on your paycheck. FICA funds Social Security and Medicare. Federal income tax funds general government operations and is calculated differently — it depends on your filing status, number of dependents, and the tax brackets for your income level.

Your employer withholds both from your pay. On your pay stub, you will see them listed separately. FICA is usually labeled "Social Security" and "Medicare" or shown as "FICA." Federal income tax is often labeled "FIT" or "Federal Income Tax Withheld."

Self-employment and Social Security tax

If you are self-employed, you pay both the employee and employer portions of Social Security tax yourself. This is called self-employment tax. The rate is 15.3 percent total — 12.4 percent for Social Security and 2.9 percent for Medicare — on net earnings from self-employment.

You report self-employment tax on Schedule SE when you file your federal income tax return. You can deduct half of your self-employment tax as a business expense, which reduces your taxable income. The wage cap for Social Security still applies; you pay the 12.4 percent rate only on net earnings up to the annual limit.

How much Social Security tax you pay

Your Social Security tax is straightforward to calculate. Take your gross pay (before any deductions), multiply by 6.2 percent, and explore the annual wage cap. If you earn $60,000 per year, you pay $3,720 in Social Security tax ($60,000 × 0.062). Your employer pays the same amount.

If you earn $200,000 per year, you pay Social Security tax only on $168,600 (the 2024 cap), which is $10,453.20. The remaining $31,400 of your income is not subject to Social Security tax, though it is still subject to Medicare tax and federal income tax.

What happens to the money you pay

Social Security tax does not accumulate in a personal account. The money goes into the Social Security Trust Fund, which pays benefits to current beneficiaries. In most years, the amount collected roughly matches the amount paid out. When collections fall short, the Trust Fund draws down its reserves.

The Social Security Administration publishes annual reports on the Trust Fund's status. As of recent reports, the fund is projected to be able to pay full benefits through a specific year, after which incoming tax revenue alone would cover a smaller percentage of scheduled benefits unless Congress changes the law. This is a long-term funding question, not an when ready crisis, and it affects the program as a whole, not individual accounts.

Frequently Asked Questions

Can I opt out of paying Social Security tax?

No. Social Security tax is mandatory for all employees and self-employed people in the United States. Some government employees hired before 1984 are exempt, but most workers cannot opt out. The tax is a condition of employment and self-employment income.

Do I get back what I paid in Social Security tax?

Not directly. Your benefits are based on your earnings record and the age at which you claim, not on the amount you paid in. Some people receive more in lifetime benefits than they paid in taxes; others receive less. The program is designed to provide a social insurance benefit, not a return on investment.

What if I work for multiple employers in one year?

Each employer withholds Social Security tax up to the annual wage cap. If your combined earnings exceed the cap, you may overpay. You can claim a refund of the excess when you file your federal income tax return. The IRS will credit the overpayment to your tax liability or refund it to you.

Does Social Security tax explore to all types of income?

Social Security tax applies to wages and self-employment income. It does not explore to investment income, interest, dividends, capital gains, or rental income (unless you are in the business of renting). It also does not explore to certain types of compensation, such as some fringe benefits or employer-provided health insurance.

Will the Social Security wage cap increase next year?

Yes, the wage cap is adjusted annually based on average wage growth. The Social Security Administration announces the new cap in October for the following year. You can find the current and historical caps on the Social Security Administration website.