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

FICA stands for the Federal Insurance Contributions Act. The "rate" is straightforward the percentage of your gross pay that gets withheld for two programs: Social Security and Medicare. As of 2024, the combined FICA rate is 15.3 percent of your wages — but you only see half of that on your paycheck. Your employer pays the other half directly to the government without it touching your bank account.

The split works like this: 12.4 percent goes to Social Security, and 2.9 percent goes to Medicare. If you are self-employed, you pay both halves yourself, which is why self-employment tax feels heavier than the FICA you see withheld as a W-2 employee. The rate is the same whether you earn $30,000 or $300,000 — but Social Security has a wage cap, meaning once you earn above a certain threshold in a year, the Social Security portion stops being withheld.

Key Takeaways

  • The FICA rate is 15.3 percent total: 12.4 percent for Social Security and 2.9 percent for Medicare, split between you and your employer.
  • You see only 7.65 percent withheld from your paycheck; your employer pays the other 7.65 percent directly to the government.
  • Social Security withholding stops once you reach the annual wage cap, which changes each year; Medicare withholding continues on all income with no cap.
  • Self-employed workers pay the full 15.3 percent themselves, though they can deduct half of it as a business expense on their tax return.
  • FICA is separate from income tax withholding — both come out of your pay, but they fund different programs and are calculated differently.

Why the rate is split between you and your employer

When FICA was created in 1935, Congress designed it as a shared cost. The idea was that both the worker and the employer benefit from the worker's future Social Security and Medicare coverage, so both should contribute. Your employer's half is a payroll tax they owe to the government, not a benefit you receive — it straightforward never appears on your pay stub because it is handled separately.

This split matters when you look at your total tax burden. If you earn $50,000 a year, you pay $3,825 in FICA (7.65 percent of $50,000). Your employer also pays $3,825. The total FICA cost of employing you is $7,650, but you only feel $3,825 of it in your take-home pay. Self-employed people feel the full weight because they are both the employee and the employer — they pay all 15.3 percent themselves.

How the Social Security wage cap changes the rate you pay

Social Security has an annual wage cap. In 2024, you stop paying Social Security tax once your earnings reach $168,600 for the year. This means if you earn $200,000, you pay the 12.4 percent Social Security rate only on the first $168,600 of income — not on the remaining $31,400. Medicare, by contrast, has no cap. You pay 2.9 percent on every dollar you earn, no matter how much.

The wage cap changes each year based on average wage growth in the economy. It was $160,200 in 2023 and $168,600 in 2024. If you change jobs mid-year or have multiple employers, you might overpay Social Security tax because each employer withholds based on what you tell them on your W-4, not on your total income across all jobs. You can recover the overpayment when you file your tax return.

The difference between FICA and income tax withholding

FICA and income tax withholding are two separate things that both come out of your paycheck, and they fund completely different programs. FICA funds Social Security and Medicare — insurance programs you have paid into throughout your working life. Income tax withholding funds general government operations: defense, infrastructure, federal agencies, and everything else the government does.

The rates are calculated differently too. FICA is a flat percentage with no deductions or adjustments — it is 7.65 percent of your gross pay, period. Income tax withholding depends on your W-4 form, your filing status, the number of dependents you claim, and your total income. You can adjust your income tax withholding by changing your W-4, but you cannot change your FICA rate. It is set by law.

What happens to the money you pay in FICA

The Social Security portion of your FICA payment goes into the Social Security Trust Fund. When you reach age 62 or older, become disabled, or die, you or your survivors can draw from this fund. The amount you receive is based on your earnings history — specifically, your 35 highest-earning years. The longer you work and the more you earn, the larger your eventual benefit.

The Medicare portion funds two main programs: Part A, which covers hospital stays and skilled nursing, and Part B, which covers doctor visits and outpatient care. Unlike Social Security, Medicare benefits are not based on how much you paid in. Everyone over 65 gets the same access to Medicare Part A and Part B, though the amount you pay for Part B premiums can vary based on your income.

How self-employment changes your FICA rate

If you are self-employed, you pay both the employee and employer portions of FICA, for a total of 15.3 percent on your net self-employment income. This is called self-employment tax, and it is calculated on Schedule SE of your tax return. The threshold for owing self-employment tax is $400 in net earnings from self-employment in a year.

The good news is that you can deduct half of your self-employment tax as a business expense on your tax return, which lowers your taxable income. So while you pay the full 15.3 percent, you get a partial offset. You also pay income tax on top of self-employment tax, so your total tax burden as a self-employed person is higher than as a W-2 employee earning the same income.

FICA rates for employees in specific situations

Most employees pay the standard FICA rate of 7.65 percent. However, certain groups have different rules. Railroad employees pay into the Railroad Retirement Tax Act instead of Social Security, at a slightly different rate. Some state and local government employees are not covered by Social Security at all and do not pay the Social Security portion of FICA.

Nonresident aliens on certain visa types may have different FICA obligations depending on their visa status and the tax treaty between the United States and their home country. If you fall into one of these categories, your employer should be withholding the correct amount, but it is worth confirming on your pay stub that the FICA rate matches what you expect.

Frequently Asked Questions

Can I opt out of paying FICA?

No. FICA is mandatory for all W-2 employees and self-employed people earning above $400. The only exceptions are certain government employees and nonresident aliens on specific visa types. You cannot choose to skip FICA withholding.

Why does my FICA withholding stop partway through the year?

The Social Security portion stops once you reach the annual wage cap — $168,600 in 2024. If you earn above that, you stop paying the 12.4 percent Social Security tax for the rest of the year. Medicare withholding continues on all income with no cap.

If I overpaid FICA, how do I get it back?

If you had multiple jobs and overpaid Social Security tax, you recover the overpayment when you file your tax return. The IRS calculates the refund automatically. You cannot get a refund for Medicare overpayment because there is no cap on Medicare tax.

Is FICA the same as income tax?

No. FICA funds Social Security and Medicare. Income tax funds general government operations. Both are withheld from your paycheck, but they are separate taxes with different rates and rules.

Do I pay FICA on tips and bonuses?

Yes. FICA is withheld on all wages, including tips, bonuses, and other compensation. The only exception is certain fringe benefits like health insurance premiums, which are not subject to FICA.