FICA Social Security Tax Is the Money Taken From Your Paycheck for Retirement and Disability Benefits

FICA Social Security tax is a federal payroll tax that funds two programs: Social Security retirement benefits and Social Security Disability Insurance (SSDI). When you work, your employer takes 6.2% of your gross pay and sends it to the Social Security Administration. If you are self-employed, you pay both the employee and employer portions — 12.4% total — on your net earnings.

The money does not go into a personal account with your name on it. Instead, it goes into a general fund that pays current retirees, disabled workers, and surviving family members. Your contributions build a record of earnings that determines how much you will receive later if you become may be able to access for benefits.

FICA stands for the Federal Insurance Contributions Act, the 1935 law that created the system. Social Security tax is one part of FICA; the other part is Medicare tax, which funds hospital insurance for people 65 and older.

Key Takeaways

  • FICA Social Security tax takes 6.2% from your paycheck if you are an employee, or 12.4% if you are self-employed.
  • The money funds retirement benefits, disability benefits, and survivor benefits for family members of deceased workers.
  • Your earnings record from Social Security tax contributions determines your benefit amount if you later become may be able to access.
  • There is a wage cap each year above which Social Security tax is not taken — the cap changes annually and was $168,600 in 2024.

How Much Social Security Tax You Pay

If you are a regular employee, your employer withholds 6.2% of your gross pay for Social Security tax. Your employer also pays 6.2% on your behalf — that is the employer match. Together, the employee and employer contributions equal 12.4% of your wages.

If you are self-employed, you pay the full 12.4% yourself because you are both the employee and the employer. You report this on Schedule SE when you file your tax return, and you can deduct half of it as a business expense.

There is a wage cap each year. Once you earn above that amount, no more Social Security tax is taken from your pay for the rest of the year. The cap changes annually — it was $168,600 in 2024 and $173,200 in 2025. Medicare tax, by contrast, has no cap and continues on all earnings.

What Happens to the Money You Pay

Social Security tax does not sit in a personal savings account. The money collected from current workers pays benefits to current retirees, disabled workers, and the families of deceased workers. This is called a pay-as-you-go system.

Your contributions do create an earnings record with the Social Security Administration. That record shows how much you earned each year and how much you paid in taxes. When you reach retirement age, become disabled, or if your family members need survivor benefits after your death, the Social Security Administration uses this record to calculate your benefit amount.

The more you earned and the longer you worked, the higher your eventual benefit will be. You need at least 40 credits of earnings to be may be able to access for retirement or disability benefits — most people earn four credits per year, so ten years of work typically qualifies you.

Who Pays Social Security Tax

Most workers in the United States pay Social Security tax. This includes employees at private companies, government workers hired after 1983, railroad workers, and self-employed people. If you earn wages or self-employment income, you almost certainly pay it.

Some government employees hired before 1984 may be covered under different pension systems instead of Social Security. Federal employees hired before 1984 may pay into the Civil Service Retirement System (CSRS) rather than Social Security. State and local government workers sometimes have their own pension systems. If you are unsure whether your job is covered, check your pay stub — if you see a line for Social Security tax, you are paying it.

The Difference Between Social Security Tax and Income Tax

Social Security tax and federal income tax are two separate deductions from your paycheck. Social Security tax is 6.2% (or 12.4% if self-employed) and funds Social Security benefits. Federal income tax is withheld at a rate that depends on your income, filing status, and the W-4 form you filled out with your employer. Income tax funds general government operations.

Social Security tax has a wage cap — once you earn above the annual limit, no more is taken. Income tax has no cap and continues on all earnings. Social Security tax is also called a payroll tax because it is tied to your wages; income tax is broader and can come from other sources like investment income.

Both appear on your pay stub. Both are withheld by your employer and sent to the federal government. But they fund different programs and are calculated differently.

Why Social Security Tax Exists

Social Security was created in 1935 during the Great Depression to provide income to retired workers and their families. The program expanded in 1956 to include disability benefits for workers who could not work due to injury or illness, and in 1965 to include survivor benefits for the families of deceased workers.

The payroll tax system was designed so that workers and employers share the cost of these benefits. The idea was that workers would contribute during their working years and receive benefits later in retirement or if they became disabled. The system has operated this way for nearly 90 years.

Frequently Asked Questions

What is the difference between FICA and Social Security tax?

FICA is the law that created both Social Security tax and Medicare tax. Social Security tax is the 6.2% (or 12.4% for self-employed) portion that funds retirement, disability, and survivor benefits. Medicare tax is the 1.45% portion that funds hospital insurance. Together, they make up FICA.

Can I opt out of paying Social Security tax?

No. If you are a U.S. citizen or resident alien working in the United States, you must pay Social Security tax on your wages or self-employment income. The only exceptions are certain government employees with their own pension systems and some religious groups that have received a formal exemption from the Social Security Administration.

Does Social Security tax go into my personal account?

No. Your Social Security tax goes into a general trust fund that pays current beneficiaries. Your contributions create an earnings record that determines your benefit amount if you later become may be able to access, but the money itself is not set aside for you personally.

What happens to Social Security tax if I change jobs?

Your Social Security tax contributions follow you automatically. The Social Security Administration tracks your earnings under your Social Security number regardless of how many jobs you have. Each employer withholds and reports your wages separately, but they all count toward your earnings record.

Is Social Security tax the same as payroll tax?

Social Security tax is one type of payroll tax. Payroll tax is a broad term that includes Social Security tax, Medicare tax, and federal income tax — all the taxes withheld from your paycheck. Social Security tax specifically refers to the 6.2% (or 12.4% for self-employed) that funds Social Security benefits.