What Is FICA Tax?
Quick Answer
FICA stands for the Federal Insurance Contributions Act, and it funds Social Security and Medicare. Every paycheck, 7.65% of your gross pay goes to FICA — 6.2% for Social Security and 1.45% for Medicare. Your employer pays a matching 7.65%, so the total contribution is 15.3% of your wages. Unlike federal income tax, FICA has no brackets, no deductions, and no way to reduce it through 401(k) contributions or other pre-tax benefits.
How FICA Tax Works
FICA is a flat tax applied to your gross pay from the first dollar. There is no standard deduction or personal exemption for FICA — every dollar you earn is subject to it (up to the Social Security cap).
The Two Components
| Component | Rate | Wage Cap (2025) |
|---|---|---|
| Social Security | 6.2% | $176,100 |
| Medicare | 1.45% | No cap |
| Additional Medicare | 0.9% | On wages above $200,000 |
Once your earnings exceed $176,100 in a calendar year, you stop paying the Social Security portion. Medicare has no cap — you pay 1.45% on every dollar, plus an extra 0.9% on earnings above $200,000.
Real Example With Actual Numbers
Emma earns $70,000 per year in Florida. Here is her annual FICA breakdown:
| Tax | Calculation | Annual Amount | Per Biweekly Paycheck |
|---|---|---|---|
| Social Security | $70,000 x 6.2% | $4,340.00 | $166.92 |
| Medicare | $70,000 x 1.45% | $1,015.00 | $39.04 |
| Total FICA | $5,355.00 | $205.96 |
Emma's employer also pays $5,355 in matching FICA, bringing the total Social Security and Medicare funding from her wages to $10,710. Use the SalaryHog calculator to see FICA broken out on your paycheck.
FICA vs Federal Income Tax
| FICA | Federal Income Tax | |
|---|---|---|
| Rate | Flat 7.65% | Progressive 10-37% |
| Deductions reduce it? | No | Yes |
| Applies to all income? | Wages only | All taxable income |
| Cap? | Social Security capped at $176,100 | No cap |
This is why FICA can feel disproportionately heavy for lower and middle-income earners. Someone making $50,000 pays 7.65% in FICA on every dollar. Someone making $500,000 pays a lower effective FICA rate because the Social Security portion stops at $176,100.
FICA for Self-Employed Workers
If you are self-employed, there is no employer to pay the matching half. You owe the full 15.3% yourself, known as self-employment tax. The good news is you can deduct half of that amount when calculating your AGI. Compare 1099 vs W-2 to see the full tax difference, or try the freelance calculator.
Can You Reduce FICA?
Unlike income tax, there are very few ways to lower your FICA bill:
- HSA contributions through payroll: If your employer deducts HSA contributions pre-FICA (via a Section 125 plan), those dollars avoid FICA
- FSA contributions: Same as HSA when done through payroll
- Employer retirement contributions: Your employer's 401(k) match is not subject to FICA
Note that your own 401(k) contributions do NOT reduce FICA — they only reduce federal and state income tax. Check your pay stub to see FICA itemized separately.