FICA stands for the Federal Insurance Contributions Act, and it is the payroll tax that funds two of the largest social insurance programs in the US: Social Security and Medicare. Unlike federal income tax, which varies based on your income and deductions, FICA is a flat percentage of your wages — no brackets, no standard deduction, no filing status. It comes out of your paycheck automatically, your employer matches it, and it keeps running with every paycheck until you hit the Social Security wage base cap. Understanding what you are paying, why, and how the math changes if you are self-employed is essential for interpreting your pay stub and planning your taxes.
What changed in 2026
- The Social Security wage base increased for 2026, as it does most years with inflation. The 2026 threshold is approximately $176,100 (verify the exact figure at ssa.gov or irs.gov, as it is set annually).
- The 0.9 % Additional Medicare Tax thresholds ($200,000 single / $250,000 married filing jointly) are not indexed for inflation — the same nominal figures apply.
- Self-employment tax deduction rules are unchanged — self-employed workers still deduct half of SE tax as an above-the-line deduction, offsetting some of the double-payment burden.
- Gig platforms continue to issue 1099s for workers above the $600 annual threshold, meaning many gig workers discovering their FICA obligation at tax time for the first time.
The FICA breakdown
| Component |
Employee rate |
Employer rate |
Wage cap |
| Social Security |
6.2 % |
6.2 % |
~$176,100 (2026 est.) |
| Medicare |
1.45 % |
1.45 % |
None |
| Additional Medicare |
0.9 % |
None |
Over $200k (single) |
| Total (employee) |
7.65 % |
7.65 % |
|
Your employer matches 6.2 % + 1.45 % = 7.65 % on top of your wages. The combined contribution per employee is 15.3 % of wages up to the wage base, then 2.9 % above it.
What each dollar funds
Social Security (Old-Age, Survivors, and Disability Insurance — OASDI): Funds retirement benefits (starting as early as 62), survivor benefits for your dependents if you die, and disability benefits if you become unable to work. Your benefit is calculated based on your lifetime earnings record — which means years of FICA contributions build your future benefit.
Medicare (Hospital Insurance — HI): Funds Medicare Part A (inpatient hospital care) for yourself and, after enough work credits, your eligible dependents. Part B (outpatient), Part C (Medicare Advantage), and Part D (drugs) are funded differently through premiums and general revenue.
How FICA appears on your pay stub
Look for these line items:
- OASDI or Soc Sec — the 6.2 % Social Security portion
- Medicare or Med or HI — the 1.45 % Medicare portion
Example: $5,000 biweekly paycheck
- Social Security withheld: $5,000 × 6.2 % = $310
- Medicare withheld: $5,000 × 1.45 % = $72.50
- Total FICA withheld: $382.50
- Employer also pays: $382.50
The Social Security wage base cap in practice
Once your cumulative wages for the year reach the Social Security wage base (~$176,100 in 2026), the 6.2 % Social Security tax stops for the rest of the year. Medicare withholding continues with no cap. This means high earners see a modest paycheck bump when they cross the Social Security wage base each year.
| Annual salary |
FICA paid (employee share, estimate) |
| $50,000 |
~$3,825 (7.65 % of all wages) |
| $100,000 |
~$7,650 (7.65 % of all wages) |
| $176,100 (at cap) |
~$13,471 |
| $250,000 |
~$13,471 + 1.45 % on remaining $73,900 + 0.9 % on $50,000 |
FICA for self-employed workers
If you are self-employed, freelance, or run a sole proprietorship, there is no employer to split the FICA bill. You pay the full 15.3 % on net self-employment income (up to the Social Security wage base), plus 2.9 % above it.
The partial offset: You can deduct half of your self-employment tax as an above-the-line deduction on your federal income tax return. If you owe $10,000 in SE tax, you deduct $5,000, reducing your taxable income and partially recovering the employer-side payment.
You pay SE tax through quarterly estimated tax payments (Form 1040-ES) — not through payroll withholding. Missing these can result in underpayment penalties.
FICA vs. federal income tax: the key differences
| Feature |
FICA |
Federal income tax |
| Rate |
Flat percentage |
Progressive brackets |
| Applies to |
Wages and self-employment income |
Adjusted gross income |
| Deductions reduce it? |
No |
Yes (standard/itemized) |
| Wage cap |
Yes (Social Security only) |
No |
| Purpose |
Dedicated to Social Security/Medicare |
General government revenue |
Common mistakes
Assuming FICA is included in income tax withholding. They are separate. Your federal income tax withholding is governed by your W-4; FICA withholding is automatic and independent.
Self-employed workers forgetting quarterly payments. FICA (as SE tax) is not withheld automatically for self-employed people. Miss three quarters and you face penalties even if you pay in full at filing.
Not understanding the wage base. High earners who change jobs mid-year may have FICA over-withheld (each employer withholds independently). You can claim the excess as a credit on your federal return.
Overlooking the 0.9 % surcharge. Single filers earning over $200,000 have an additional 0.9 % Medicare tax. Employers withhold it above $200,000 from a single job, but if your combined income from multiple sources crosses the threshold, you may owe the additional tax at filing.
Confusing "exempt from income tax" with "exempt from FICA." Almost all earned income is subject to FICA. Some narrow exceptions apply (certain student workers, specific visa categories), but most workers cannot opt out.
What to skip
- Trying to reduce FICA through deductions — it does not work. FICA is calculated on gross wages, not adjusted gross income.
- Ignoring SE tax when pricing freelance work — if you quote clients based on take-home pay expectations without accounting for 15.3 % SE tax, you are effectively underpaying yourself.
- Confusing FICA with FUTA — FUTA (Federal Unemployment Tax Act) is a separate employer-only payroll tax; you do not pay it yourself.
FAQ
Does FICA affect my Social Security benefit amount?
Yes directly. Your eventual Social Security benefit is calculated using your highest 35 years of indexed earnings — the wages on which you paid Social Security tax. Higher lifetime earnings (and thus more FICA paid) generally produce a higher benefit.
Are tips subject to FICA?
Yes. Tips are wages for FICA purposes. Employees are required to report tips to their employer, who then withholds FICA. Unreported tips are still technically subject to self-employment tax.
Can I get FICA refunded if I overpay?
If you work for two employers and combined wages exceed the Social Security wage base, each employer withholds independently. You can claim the excess Social Security withholding as a credit on your Form 1040. Excess Medicare withholding is not refundable in the same way.
Do non-US citizens working in the US pay FICA?
Generally yes if they are resident aliens or on certain visa types. Some visa categories (F-1, J-1 students in their first five years, etc.) are exempt. The rules depend on residency status and visa type.
Where to go next
See What is a W-4 in 2026, What is AGI in 2026, and How to find tax deductions in 2026.