CalcQuick answer: FICA is a flat 7.65% federal payroll tax on your wages, made of 6.2% for Social Security and 1.45% for Medicare. Your employer pays a matching 7.65% on top. Unlike income tax, FICA applies from your very first dollar, ignores your W-4, and allows no standard deduction.
Key FICA facts for 2026:
- Employee rate: 7.65% of gross wages (6.2% + 1.45%)
- Employer match: another 7.65% you never see on your stub
- Social Security wage base: the 6.2% stops at $184,500 of wages
- Additional Medicare tax: 0.9% extra on wages above $200,000
- Self-employed rate: 15.3%, since you pay both halves
- No deductions: your 401(k) and standard deduction do not reduce it
What is FICA tax?
FICA stands for the Federal Insurance Contributions Act. It is the payroll tax that funds two programs: Social Security (retirement, disability, and survivor benefits) and Medicare (hospital insurance for people 65 and older).
FICA is separate from federal income tax. Both come out of the same paycheck, but they follow completely different rules, which is why they appear as different lines on your stub, usually labeled OASDI or SS, and MED.
How much FICA do I pay per paycheck?
Multiply gross wages by 7.65%. On a $65,000 salary paid biweekly:
| FICA component | Rate | Per $2,500 check | Per year |
|---|---|---|---|
| Social Security | 6.2% | $155.00 | $4,030 |
| Medicare | 1.45% | $36.25 | $943 |
| Total FICA | 7.65% | $191.25 | $4,973 |
Notice what is missing: no standard deduction, no bracket math, no dependents. FICA is the simplest line on the stub, and for most workers it is bigger than their federal income tax line. See both side by side in the full paycheck taxes guide.
Enter your salary and see your exact FICA, federal, and state lines per check, with a chart of where every dollar goes.
What is the Social Security wage base?
The 6.2% Social Security tax applies only up to an annual wage cap, $184,500 in 2026. Wages above the cap pay zero Social Security tax.
What that means at different salaries:
- $65,000 earner: pays 6.2% all year ($4,030)
- $184,500 earner: pays the maximum, $11,439
- $250,000 earner: also pays $11,439, and their checks jump 6.2% for the rest of the year once the cap fills, usually sometime in fall
Medicare has no cap. In fact it goes the other way: an extra 0.9% applies to wages above $200,000, bringing high earners’ Medicare rate to 2.35% on the excess.
Who pays double FICA?
Self-employed people pay both halves as self-employment tax: 12.4% Social Security plus 2.9% Medicare, 15.3% total, applied to 92.35% of net business profit.
Two softeners exist:
- Half of self-employment tax is deductible against income tax
- The same wage base cap applies to the Social Security portion
A W-2 employee with a side business pays regular FICA on the job and self-employment tax on the side profit, a combination covered step by step in the extra withholding guide, which shows how to cover the side-gig bill through your paycheck.
Does my 401(k) reduce FICA?
No. Traditional 401(k) contributions reduce federal and state income tax, but FICA is calculated on wages including the contribution.
The upside: your Social Security benefit is based on your full, unreduced wage record, so saving for retirement never shrinks the government benefit. The one mainstream payroll deduction that does skip FICA is the HSA (plus most Section 125 health premiums), one reason the HSA is often called the most tax-advantaged account in America.
What does FICA actually buy you?
Unlike income tax, FICA is tied to specific benefits credited to your record:
- Retirement benefits: based on your highest 35 years of FICA-taxed earnings
- Disability insurance: income if you become unable to work
- Survivor benefits: support for spouses and children
- Medicare Part A: hospital coverage at 65, premium-free with 40 quarters of work
That is why FICA applies to bonuses too, as the bonus tax guide details: the system wants every wage dollar on your record.
When do you get FICA money back?
Normally never at tax time; it is not withholding, it is the tax itself. Two exceptions:
- Two employers, combined wages over the cap: each withholds Social Security independently, and the excess comes back as a credit on your return
- Certain exempt groups: some students working at their school, certain religious exemptions, and some government workers under alternative systems
FICA vs income tax at a glance
| Feature | FICA | Federal income tax |
|---|---|---|
| Rate structure | Flat 7.65% | Brackets, 10% to 37% |
| Standard deduction | None | $16,100 single / $32,200 married |
| W-4 controlled | No | Yes |
| 401(k) reduces it | No | Yes |
| Refundable at filing | Rarely | Routinely |
| Stops at a wage cap | SS portion does | Never |
Understanding which rules govern which line is most of stub literacy, the skill built in gross vs net pay and priced rate-by-rate in marginal vs effective rates.
FICA across a working life
The tax feels different at different career stages:
- First job: FICA is usually the biggest tax a young worker pays, since low salaries owe little income tax after the standard deduction but 7.65% from dollar one
- Mid-career: the 7.65% hums along invisibly; two-job years can over-collect Social Security, refunded at filing
- High-earning years: checks grow 6.2% mid-year when wages cross the $184,500 cap, then the 0.9% Medicare surtax appears above $200,000
- Age 62 to 70: you choose when to claim the retirement benefit those decades of FICA purchased, and claiming age changes the monthly amount substantially
- Working retirement: wages still owe FICA even while collecting benefits
How FICA rates got here
The rate was not always 7.65%:
| Era | Employee rate | Note |
|---|---|---|
| 1937 | 1.0% | Social Security’s first collections |
| 1960 | 3.0% | Disability coverage added |
| 1966 | 4.2% | Medicare arrives |
| 1990 | 7.65% | The modern rate locks in |
| 2013 | 7.65% + 0.9% | Additional Medicare tax on high wages |
The rate has been stable for a generation; the wage base is what moves, climbing with national average wages almost every year.
The employer’s other payroll taxes
Your employer’s 7.65% match is not their only payroll tax:
- FUTA: federal unemployment tax, employer-paid on the first slice of each worker’s wages
- SUTA: state unemployment tax, rated by the employer’s layoff history
- Workers’ compensation: insurance premiums scaled to payroll and job risk
None of these touch your stub, but together with the FICA match they explain the loaded-cost gap between your salary and your true cost, the concept the offer comparison guide uses to price contractor rates.
Check the record your FICA is buying
Every FICA dollar is supposed to land on your Social Security earnings record, and the record, not your memory, computes your future benefit. Verify it:
- Create a my Social Security account at the official SSA site and skim the earnings table once a year
- Compare against your W-2s: a missing or garbled year usually traces to a name/SSN mismatch at an old employer
- Why it matters: benefits average your highest 35 years; an erroneous zero drags the average for life
- Fixes are time-boxed: corrections get harder after a few years, so an annual two-minute glance beats a retirement-eve archaeology project
The statement also projects your benefit at different claiming ages, which quietly turns decades of 7.65% deductions into a concrete monthly number, the best answer to “what is FICA even for.”
Two record details worth knowing:
- Medicare needs 40 quarters: about ten working years of FICA earns premium-free Part A at 65; the statement counts your quarters for you
- Self-employment counts: profit reported through self-employment tax builds the same record as W-2 wages, quarter for quarter
Frequently asked questions
Is FICA the same as Social Security tax?
Social Security is the bigger piece of FICA. FICA is the umbrella: 6.2% Social Security plus 1.45% Medicare.
Why is FICA on my bonus?
Bonuses are wages, and FICA applies to essentially all wages, under every withholding method.
Do I pay FICA on investment income?
No. FICA applies to earned income only: wages and self-employment profit. Interest, dividends, and capital gains skip it.
Can I opt out of FICA?
Almost never. It is not optional for regular employees, and the narrow exemptions are tied to specific statuses, not preference.
Does my employer’s 7.65% come out of my pay?
Not directly; it is paid on top of your wages. Economists argue it suppresses gross pay slightly, but it never appears as a deduction on your stub.
What are OASDI and MED on my stub?
OASDI (Old-Age, Survivors, and Disability Insurance) is the Social Security line. MED is Medicare. Together they are your FICA.
Is FICA deductible on my income tax return?
Not for employees. The self-employed deduct half of self-employment tax, which mirrors the employer half they had to cover themselves.
See your own FICA lines in the paycheck calculator, check how bonuses interact in the bonus tax calculator, and the rest of the paycheck tools keep every rate in this guide applied to your exact numbers.