FICA rate is the percentage of your paycheck that goes to Social Security and Medicare

FICA stands for Federal Insurance Contributions Act. The FICA rate is split between two programs: Social Security and Medicare. As an employee, you pay 6.2% of your gross wages to Social Security and 1.45% to Medicare, for a combined rate of 7.65%. Your employer pays an equal amount on your behalf. If you're self-employed, you pay both the employee and employer portions, which totals 15.3% (though you can deduct half of it on your taxes).

The rate itself doesn't change year to year — it's set by federal law. What does change is the wage base, which is the maximum amount of income subject to Social Security tax. For 2024, that cap is $168,600. Once your earnings reach that threshold in a calendar year, you stop paying the 6.2% Social Security tax, though you continue paying Medicare tax on all income with no cap.

Key Takeaways

  • Employees pay 7.65% in FICA taxes (6.2% Social Security, 1.45% Medicare), and employers pay an equal amount.
  • Self-employed people pay 15.3% total but can deduct half of it as a business expense on their tax return.
  • Social Security tax stops once you earn above the annual wage base, but Medicare tax continues on all income.
  • FICA taxes fund your future Social Security benefits and Medicare coverage, not general government spending.

How the Social Security portion works

The 6.2% you pay to Social Security is tied directly to your future retirement, disability, and survivor benefits. The more you earn and pay in over your working years, the higher your benefit will be when you retire or if you become disabled. Social Security uses your 35 highest-earning years to calculate your benefit amount.

The wage base limit means high earners pay a smaller percentage of their total income to Social Security than lower earners do. In 2024, someone earning $168,600 pays 6.2% on all of it. Someone earning $300,000 pays 6.2% only on the first $168,600 and nothing on the remaining $131,400. This is why Social Security is sometimes described as a regressive tax — it takes a larger share from lower incomes.

How the Medicare portion works

The 1.45% Medicare tax has no wage base limit, so you pay it on every dollar you earn, no matter how much you make. This portion funds Medicare Part A (hospital insurance) and Part B (medical insurance) when you turn 65. Unlike Social Security, there's no cap on how much you can contribute.

High earners pay an additional 0.9% Medicare tax on wages above $200,000 (single filers) or $250,000 (married filing jointly). This extra tax was added in 2013 and goes toward funding the Affordable Care Act. Your employer does not match this additional 0.9% — you pay it alone.

Why FICA taxes are withheld from your paycheck

Your employer withholds FICA taxes automatically and sends them to the IRS on your behalf. This happens with every paycheck. The withholding ensures the government collects the money steadily throughout the year rather than waiting for you to pay a lump sum at tax time.

You can see the exact amounts withheld on your pay stub under "Social Security" and "Medicare" or sometimes labeled as "FICA." These amounts are also reported to you annually on your W-2 form, which shows total FICA paid during the year. If you overpay (which rarely happens), you don't get a refund — FICA taxes are not refundable.

FICA for self-employed people

If you're self-employed, you pay both the employee and employer share of FICA taxes through self-employment tax. This totals 15.3% (12.4% for Social Security, 2.9% for Medicare). You calculate it on Schedule SE and pay it along with your income tax return, usually in quarterly estimated tax payments.

The self-employment tax is higher, but the tax code gives you a partial offset: you can deduct half of your self-employment tax as a business expense on your tax return. This reduces your taxable income and lowers your overall tax bill. You still pay the full 15.3%, but the deduction makes it slightly less burdensome than it appears.

What happens to FICA taxes after they're collected

FICA taxes go into two separate trust funds: the Social Security Trust Fund and the Medicare Trust Fund. These are not general government accounts. The money is reserved specifically for paying current beneficiaries and funding future benefits. When you retire, become disabled, or reach 65, your benefits come from these funds, not from general tax revenue.

The Social Security Trust Fund is currently paying out more in benefits than it collects in taxes, which is why the program faces long-term funding questions. The trust fund has reserves that allow it to cover the shortfall, but those reserves are projected to be depleted around 2034 if no changes are made. Medicare faces similar pressures, particularly for Part A (hospital insurance).

How FICA rates compare to income tax

FICA taxes are separate from federal income tax. You pay both. Income tax rates vary based on your income level and filing status, while FICA rates are flat — everyone pays the same percentage up to the wage base. A person earning $50,000 pays 7.65% in FICA, and a person earning $500,000 pays 7.65% on the first $168,600 of income (plus the extra 0.9% Medicare on higher earnings).

FICA is also separate from state and local taxes. Some states have state income tax in addition to federal income tax and FICA. Your pay stub will show all three withheld separately. Understanding which taxes fund what helps explain why your take-home pay is significantly less than your gross pay.

Frequently Asked Questions

Does FICA tax go toward general government spending?

No. FICA taxes are earmarked for Social Security and Medicare only. They don't fund defense, education, infrastructure, or other government programs. This is why Social Security and Medicare are sometimes called "earned benefits" — you pay specifically for them during your working years.

What if I work for multiple employers in the same year?

Each employer withholds FICA taxes independently. If your combined earnings exceed the Social Security wage base, you may overpay Social Security tax. You can claim a credit for the overpayment when you file your tax return, but you won't receive a refund — the credit reduces your income tax liability instead.

Do I pay FICA taxes on all types of income?

FICA taxes apply to wages and self-employment income. They don't apply to investment income, interest, dividends, or capital gains. If you have a mix of W-2 wages and investment income, FICA is withheld only on the wages.

Can I opt out of paying FICA taxes?

No. FICA taxes are mandatory for all employees and self-employed people. Some religious groups have limited exemptions, but these are rare and require specific approval from the IRS. For most workers, FICA withholding is non-negotiable.

Does FICA tax increase every year?

The FICA rate itself stays the same, but the Social Security wage base increases each year based on average wage growth. This means higher earners pay more to Social Security as the cap rises, but the percentage rate remains 6.2% for employees.