Track 1 · Foundations → Phase 2: Your Paycheck & First Taxes
FICA, Social Security & Medicare — what's actually taken out
The 7.65% that leaves every paycheck no matter what — what it is, what it buys, and why most first-jobbers never hit its ceiling.
The situation
You scan your pay stub and spot two lines you didn’t sign up for: one says Social Security (or maybe OASDI), the other says Medicare. Together they’re taking a chunk of every check, and there’s no box to uncheck. That’s FICA — and unlike a lot of money mysteries, this one has a clean, fixed answer.
The idea
FICA stands for the Federal Insurance Contributions Act. In plain English: it’s the payroll tax that funds Social Security and Medicare, and it comes out of essentially every paycheck a regular employee earns.
It’s two flat rates stacked together:
- Social Security: 6.2% of your wages — funds retirement, disability, and survivor benefits.
- Medicare: 1.45% of your wages — funds health coverage for people 65+.
Add them and you get 7.65%, the number to memorize. Unlike income tax, FICA isn’t affected by your W-4 or the standard deduction — it’s a straight percentage of your pay, from your very first dollar. There’s no opting out, and no bracket math: 7.65%, flat.
One quiet bonus: your employer pays a matching 7.65% on top of yours. So 15.3% total is going toward your Social Security and Medicare — you just only see half of it leave your check. (Hold that thought; it matters a lot in the W-2 vs. 1099 lesson.)
By the numbers
Back to the anchor: $48,000 a year, paid biweekly (26 checks).
| FICA piece | Rate | Per year | Per check |
|---|---|---|---|
| Social Security | 6.2% | $2,976 | $114.46 |
| Medicare | 1.45% | $696 | $26.77 |
| FICA total | 7.65% | $3,672 | $141.23 |
So about $141 of every $1,846.15 check goes to FICA. It’s the most predictable deduction you have — same percentage every single check.
Is there a ceiling? Yes, on the Social Security half. The 6.2% only applies up to the Social Security wage base, which is $184,500 for 2026. Earn past that in a year and the Social Security tax stops (Medicare’s 1.45% keeps going with no cap). On a $48,000 salary you’re nowhere near it — but it’s why a high earner’s late-year checks suddenly get a little bigger.
What it actually buys
It’s easy to see FICA as money vanishing, but it’s closer to a prepayment on future-you. The Social Security part builds toward the retirement, disability, and survivor benefits you can draw on later; the Medicare part funds the health coverage you’ll likely use after 65. You’re not getting nothing for that 7.65% — you’re funding a safety net that, by law, includes you.
Do it
On your next pay stub, find the two FICA lines. They'll be labeled something like 'Social Security' (or 'OASDI') and 'Medicare.' Add them — that's your 7.65%, and it should be about 7.65% of your gross for the period.
Check yourself
1. What is FICA?
FICA = Federal Insurance Contributions Act. It's the 7.65% that funds Social Security and Medicare, withheld automatically from your wages.
2. What's the total FICA rate for most employees?
6.2% for Social Security plus 1.45% for Medicare equals 7.65% on your wages.
3. On a $48,000 salary, roughly how much FICA comes out in a year?
$48,000 × 7.65% ≈ $3,672 ($2,976 Social Security + $696 Medicare). Your employer quietly pays a matching amount on top.
4. There's a cap on Social Security tax. For 2026 it stops after how much in wages?
Social Security tax (the 6.2% part) only applies up to the wage base — $184,500 in 2026. Most first-jobbers never reach it. Medicare's 1.45% has no cap.
Keep this
FICA is a flat 7.65% (6.2% Social Security + 1.45% Medicare) on your wages. On $48,000 that's about $3,672 a year, and you can't opt out — but it funds your future Social Security and Medicare.