Yes, you pay Social Security tax if you work for an employer or are self-employed

Social Security tax is taken from your paycheck automatically if you earn wages. The rate is 6.2 percent of your gross pay, up to a yearly earnings cap. Your employer matches that amount — they pay another 6.2 percent on your behalf, though you do not see that money. If you are self-employed, you pay both the employee and employer portions, which totals 12.4 percent.

The earnings cap changes each year. In 2024, you stop paying Social Security tax once your income reaches $168,600 for the year. Income above that threshold is not subject to the tax. This means high earners pay a smaller percentage of their total income toward Social Security than lower-wage workers do.

The money goes into a federal trust fund that pays benefits to retirees, disabled workers, and survivors of deceased workers. You build a record of earnings that determines how much you receive later when you retire or become unable to work.

Key Takeaways

  • Social Security tax is 6.2 percent of your wages, taken from your paycheck before you receive it, with your employer paying an equal amount.
  • The tax applies only to earnings up to an annual cap, which was $168,600 in 2024 and increases most years.
  • Self-employed people pay the full 12.4 percent themselves because they are both employer and employee.
  • Your earnings record from these contributions determines your future Social Security retirement or disability benefits.
  • Certain government employees hired before 1984 may not pay Social Security tax, though most workers do.

How the tax appears on your pay stub

Look at your pay stub under deductions. You will see a line labeled "Social Security" or "OASDI" (Old-Age, Survivors, and Disability Insurance). The amount shown is 6.2 percent of your gross pay for that period. This is money withheld before you receive your paycheck — it does not come out after taxes are calculated.

The order matters: Social Security tax is calculated on your full gross pay, before federal income tax withholding. This means if you earn $1,000 in a pay period, Social Security takes $62, and then federal income tax is calculated on the remaining amount (though your employer still withholds federal tax from the full $1,000).

If you have multiple jobs, you pay Social Security tax on earnings from each one. However, if your combined earnings exceed the yearly cap, you can claim a credit on your tax return for the overpayment. This happens most often to people who change jobs mid-year or work two part-time positions.

The yearly earnings cap and what happens above it

Once your earnings reach the annual cap, your employer stops withholding Social Security tax for the rest of that year. In 2024, that cap was $168,600. The cap increases most years based on wage growth in the economy — it was $160,200 in 2023 and $147,000 in 2022.

Income above the cap is still subject to Medicare tax (1.45 percent), but not Social Security tax. This is why very high earners pay a smaller percentage of their total income toward Social Security than middle-income workers. A person earning $500,000 pays the same total Social Security tax as someone earning $168,600, even though they earn nearly three times as much.

If you work multiple jobs and hit the cap across all of them combined, you may have overpaid. For example, if you earned $85,000 at one job and $90,000 at another in 2024, you would have paid Social Security tax on $175,600 total — $7,372 more than the cap allows. You can claim the overpayment as a credit on your federal tax return.

Self-employed workers and Social Security tax

If you are self-employed, you pay Social Security tax as both the employee and the employer. This means the rate is 12.4 percent of your net self-employment income, rather than 6.2 percent. You calculate this on Schedule SE (Self-Employment Tax) when you file your tax return.

Self-employed income includes profit from a business, freelance work, or gig work — anything where you do not receive a W-2 from an employer. You pay the tax on your net earnings after deducting business expenses. The same yearly cap applies: once your net self-employment income reaches $168,600 in 2024, you stop paying the tax on additional earnings.

You can deduct half of your self-employment tax as a business expense on your tax return, which reduces your overall tax burden slightly. This deduction exists because it mirrors the way an employer's portion of the tax works for regular employees — it is not counted as income to the worker.

Who does not pay Social Security tax

Most workers pay Social Security tax, but some groups are exempt. Federal employees hired before 1984 pay into a different retirement system (CSRS) instead of Social Security. Federal employees hired in 1984 or later pay both Social Security and Medicare tax like other workers.

Some state and local government employees do not pay Social Security tax if they are covered by a government pension plan instead. However, many state and local workers do pay Social Security tax even if they have a pension. The rules vary by employer and by when the person was hired.

Nonresident aliens on certain visa types may be exempt from Social Security tax, depending on the visa category and tax treaty between their home country and the United States. Students on F-1 visas, for example, are usually exempt while studying in the United States.

What happens to the money you pay

Social Security tax funds current benefits for retirees, disabled workers, and survivors of workers who have died. The program operates on a pay-as-you-go basis: the taxes collected this year pay benefits to people receiving them right now, not into an individual account for your future use.

Your earnings record is tracked by the Social Security Administration. When you retire, become disabled, or die, your family may receive benefits based on how much you earned and how long you paid into the system. The more you earned (up to the yearly cap), the higher your future benefit will be.

You can view your earnings record and benefit estimate by creating an account at ssa.gov. The Social Security Administration sends statements showing your estimated retirement benefit at full retirement age, your estimated disability benefit, and your family's estimated survivor benefits if you were to die.

Frequently Asked Questions

Can I opt out of paying Social Security tax?

No. If you work for an employer or are self-employed, you must pay Social Security tax. The only exceptions are specific groups like certain government employees or nonresident aliens on particular visas. There is no option to redirect the money to a private account or investment instead.

What if I did not work long enough to get Social Security benefits?

You need 40 work credits to receive retirement benefits — roughly 10 years of earnings. If you do not reach that threshold, you will not receive a retirement benefit based on your own earnings. However, you may be able to receive benefits as a spouse or survivor if a family member qualifies.

Does Social Security tax explore to tips and bonuses?

Yes. Tips and bonuses are wages and are subject to Social Security tax. Your employer should include them in your gross pay when calculating the withholding. If you receive cash tips that your employer does not know about, you are still required to report them and pay tax on them.

Why do I see different Social Security amounts on my paychecks?

The amount changes if your pay varies — hourly workers with different hours each week will see different withholdings. Once you reach the yearly earnings cap, the withholding stops for the rest of the year, so your final paychecks of the year may show no Social Security tax.

Is Social Security tax the same as Medicare tax?

No. Social Security tax is 6.2 percent (or 12.4 percent for self-employed). Medicare tax is 1.45 percent (or 2.9 percent for self-employed). Both are withheld from your paycheck, but they fund different programs and have different rules. Medicare has no yearly earnings cap.