Simple definition
FICA is the payroll tax that funds Social Security and Medicare. It is taken straight out of your paycheck: 7.65% of your wages from you — 6.2% for Social Security plus 1.45% for Medicare — and your employer matches that same amount. Think of it as your ongoing contribution to the programs you may draw on later in life.
Why it matters
FICA is often the biggest tax line on a paycheck after income tax, and it directly funds the Social Security and Medicare benefits you may rely on someday. Understanding it explains why your take-home pay is smaller than your salary and how self-employment changes the math.
Real-life example
Say you earn $50,000 in wages. Your FICA share is 7.65%, or about $3,825 for the year, withheld across your paychecks. Your employer pays another $3,825. If you were self-employed instead, you would owe both halves yourself — 15.3% — though part of that is deductible.
Formula
Employee FICA = 6.2% Social Security + 1.45% Medicare = 7.65% of wages
Common mistakes
- Forgetting that the self-employed owe both halves of FICA — 15.3% total.
- Confusing FICA with federal income tax; they are separate taxes on your pay.
- Not budgeting for self-employment tax and getting surprised at filing time.
- Assuming the Social Security portion applies to unlimited wages — there is a yearly cap.
Pro tips
- Check your pay stub to see the Social Security and Medicare lines separately.
- If self-employed, set aside for both halves and pay estimated taxes quarterly.
- Remember the self-employed can deduct part of their self-employment tax.
- Know that the Social Security wage base changes yearly, so the cap shifts over time.
Related Money Dictionary terms
- Payroll TaxTaxes taken out of wages to fund programs like Social Security and Medicare, paid by both worker and employer.
- Social Security TaxA payroll tax on wages up to an annual limit that funds retirement, disability, and survivor benefits.
- Medicare TaxA payroll tax on all wages that helps fund hospital and medical coverage for people on Medicare.
- Self-Employment TaxThe Social Security and Medicare tax that self-employed people pay to cover both the employee and employer shares.
- WithholdingMoney your employer takes out of each paycheck and sends to the government toward your expected tax bill.
Frequently asked questions
How much is FICA?
As an employee, you pay 7.65% of your wages — 6.2% for Social Security and 1.45% for Medicare — and your employer matches it. If you are self-employed, you owe both halves, for 15.3% total, though you can deduct part of that. The Social Security portion applies only up to a yearly wage cap.
Is there a limit on FICA taxes?
The Social Security portion applies only up to an annual wage base that is set each year, so earnings above that cap are not subject to it. The Medicare portion has no wage cap, and higher earners may owe an additional Medicare amount. Because the cap changes yearly, check the current IRS figure.
Why do the self-employed pay more FICA?
Employees split FICA with their employer, each paying 7.65%. Self-employed people are both the worker and the employer, so they cover both halves — 15.3% — through self-employment tax. To ease this, the tax code lets them deduct part of that self-employment tax when figuring their income tax.
Knowing what FICA means is knowledge — the first half. A brick gets placed when you act on it: find the Social Security and Medicare lines on your pay stub to see your FICA share.
Also builds: Self-Employment & Side Income
Sources & references
More in Taxes
Plain-English education — not personalized legal, tax, or investment advice.