FICA Tax Calculator
Calculate your 2025 Social Security and Medicare taxes as an employee or self-employed individual, including the Additional Medicare tax on high earners.
🏛️ What is FICA Tax?
FICA tax (Federal Insurance Contributions Act) is the mandatory payroll tax that funds two federal programs: Social Security and Medicare. For 2025, employees pay 6.2% of wages toward Social Security (up to the $176,100 wage base) and 1.45% toward Medicare on all wages, for a combined FICA rate of 7.65%. Employers must match both contributions dollar-for-dollar, meaning the true cost of FICA per employee is 15.3% of wages - split equally between employer and employee.
Self-employed individuals face a unique FICA situation: because they are both employer and employee, they pay the full 15.3% self-employment (SE) tax on their net profit, multiplied by a factor of 92.35%. The 92.35% adjustment levels the playing field with employees, who do not pay FICA on the employer's share. As partial compensation, self-employed individuals can deduct 50% of their SE tax from gross income when calculating federal income tax - a meaningful deduction at higher income levels.
High earners face an additional layer: the 0.9% Additional Medicare Tax, introduced under the Affordable Care Act, applies to wages exceeding $200,000 for single filers, $250,000 for married filing jointly, and $125,000 for married filing separately. Unlike the base Medicare rate, the Additional Medicare Tax has no employer match - it falls entirely on the employee. Employers begin withholding it once wages exceed $200,000 regardless of filing status; any adjustment for household income is settled on the tax return.
Understanding your FICA tax is important for paycheck budgeting, freelance rate-setting (self-employed individuals need to set aside roughly 15.3% for SE tax on top of income tax), and retirement planning - your Social Security benefit at retirement is directly tied to your FICA-taxed earnings history. Use this calculator to model both W-2 employment and self-employment scenarios for any income level.
📐 Formula
Employee FICA = SS Tax + Medicare Tax + Additional Medicare Tax
SS Tax = min(Wages, $176,100) × 6.2%
Medicare Tax = Wages × 1.45%
Additional Medicare = max(0, Wages − Threshold) × 0.9%
Employer Match = SS Tax + Medicare Tax (employer does not match Additional Medicare)
Self-Employment Tax = Net Profit × 92.35% × 15.3%
SE Deduction = SE Tax × 50%
Example (Employee, $75,000 wages, single): SS = $75,000 × 6.2% = $4,650 • Medicare = $75,000 × 1.45% = $1,087.50 • Additional Medicare = $0 (below $200K threshold) • Total FICA = $5,737.50 • Employer match = $5,737.50
📖 How to Use This Calculator
Steps
1
Choose your employment type - select Employee (W-2) if you receive a salary or wages from an employer, or Self-Employed if you file Schedule C, are a sole proprietor, or receive 1099-NEC income.
2
Enter your wages or net profit - employees enter annual gross wages; self-employed enter net profit after all business deductions (before the SE tax deduction itself).
3
Select your filing status (Employee mode) - your filing status sets the Additional Medicare tax threshold. Married filing jointly has the highest threshold ($250,000); married filing separately has the lowest ($125,000).
4
Click Calculate - view a full breakdown of Social Security tax, Medicare tax, Additional Medicare tax, employer match, and your effective FICA rate.
💡 Example Calculations
Example 1 — Employee Earning $75,000 Annual Wages
W-2 employee with $75,000 annual wages, single filer, 2025
1
Social Security tax: min($75,000, $176,100) × 6.2% = $75,000 × 6.2% = $4,650.
2
Medicare tax: $75,000 × 1.45% = $1,087.50. Additional Medicare: $0 (wages below $200,000 single threshold).
3
Employee total FICA = $4,650 + $1,087.50 = $5,737.50. Employer match = same amount. Total cost to employer: $75,000 + $5,737.50 = $80,737.50.
Employee FICA = $5,737.50 • Effective Rate 7.65%
Try this example →Example 2 — High Earner Above the SS Wage Base ($220,000)
W-2 employee with $220,000 wages, single filer - SS wage base cap and Additional Medicare apply
1
Social Security tax: min($220,000, $176,100) × 6.2% = $176,100 × 6.2% = $10,918.20. The $43,900 above the wage base is SS-exempt.
2
Medicare tax: $220,000 × 1.45% = $3,190. Additional Medicare: ($220,000 − $200,000) × 0.9% = $20,000 × 0.9% = $180.
3
Total employee FICA = $10,918.20 + $3,190 + $180 = $14,288.20. Employer match (no Additional Medicare match) = $10,918.20 + $3,190 = $14,108.20.
Employee FICA = $14,288.20 • Effective Rate 6.49%
Try this example →Example 3 — Self-Employed with $80,000 Net Profit
Freelancer / sole proprietor with $80,000 net profit on Schedule C, 2025
1
SE earnings: $80,000 × 92.35% = $73,880. This is the net earnings from self-employment used for SE tax.
2
SE tax: SS = $73,880 × 12.4% = $9,161.12 • Medicare = $73,880 × 2.9% = $2,142.52 • Total SE tax = $11,303.64.
3
50% SE deduction = $11,303.64 × 50% = $5,651.82 deductible from gross income. Effective rate on net profit = $11,303.64 ÷ $80,000 = 14.13%.
SE Tax = $11,303.64 • Deduction $5,651.82
Try this example →Example 4 — Married Couple Filing Jointly, $260,000 Combined Wages
Dual-income couple filing MFJ, each earning $130,000 - total household wages $260,000
1
Each spouse's employer withholds independently: SS = $130,000 × 6.2% = $8,060 each; Medicare = $130,000 × 1.45% = $1,885 each. No Additional Medicare withholding below $200,000 per employer.
2
Combined household wages = $260,000. MFJ Additional Medicare threshold = $250,000. Additional Medicare owed = ($260,000 − $250,000) × 0.9% = $90. Settled on Form 1040.
3
Total employee FICA: ($8,060 + $1,885) × 2 + $90 = $19,890 + $90 = $19,980. This calculator's employee mode takes household wages as a single input for simplicity.
Employee FICA ≈ $19,980 • Effective Rate ~7.69%
Try this example →❓ Frequently Asked Questions
What is FICA tax and what does it fund?
FICA stands for Federal Insurance Contributions Act. It funds Social Security (disability, retirement, and survivor benefits) and Medicare (hospital insurance). Employees pay 6.2% for Social Security up to the wage base and 1.45% for Medicare on all wages. Employers match both contributions. Self-employed individuals pay both shares (15.3% total) but deduct 50% of SE tax from gross income.
What is the Social Security wage base for 2025?
The 2025 Social Security taxable wage base is $176,100. Wages above this amount are exempt from the 6.2% Social Security employee tax (and the matching employer contribution). The wage base adjusts annually for inflation. Medicare tax has no cap - the 1.45% rate applies to all wages without limit, and the 0.9% Additional Medicare applies to high earners on top of that.
What is the Additional Medicare Tax and who pays it?
The Additional Medicare Tax (0.9%) applies to wages above $200,000 (single/HOH), $250,000 (married filing jointly), or $125,000 (married filing separately). Employers begin withholding it at $200,000 per employee regardless of filing status. Any shortfall or overpayment is reconciled on the annual tax return. Unlike the base FICA, there is no employer match for the Additional Medicare Tax.
How does self-employment tax differ from FICA?
Self-employment (SE) tax is functionally equivalent to FICA but applies to sole proprietors, freelancers, and single-member LLC owners. Because self-employed individuals have no employer to match contributions, they pay both the employee and employer shares - 12.4% Social Security and 2.9% Medicare (15.3% total) - applied to net earnings multiplied by 92.35%. The 92.35% factor removes the employer's share of FICA from the base, mirroring how employees don't pay FICA on the employer's contribution.
Can I deduct self-employment tax from my income taxes?
Yes. You can deduct 50% of your total self-employment tax as an "above-the-line" deduction on Schedule 1 of Form 1040. This reduces your adjusted gross income (AGI), which lowers your federal income tax. For example, if your SE tax is $11,304, you deduct $5,652 from AGI. This deduction does not require itemizing and is available regardless of your other deductions.
How much should I save for FICA taxes as a freelancer?
Self-employed individuals should generally set aside 25–35% of net profit for taxes. Of that, roughly 14.13% covers SE tax on a typical income (15.3% applied to 92.35% of net profit). The remainder covers federal and state income taxes. A common rule of thumb is to save 30% of every payment received for quarterly estimated taxes (due April, June, September, January), accounting for both SE tax and income tax.
What happens if I have multiple jobs and overpay Social Security tax?
Each employer withholds SS tax independently until wages from that employer reach $176,100. If you have two jobs with $100,000 wages each, both withhold SS tax - but you only owe SS tax on the first $176,100 across all jobs. The excess is claimed as a credit on your federal return (Form 1040 Schedule 3, Line 11), effectively refunding the overpaid SS tax. There is no overpayment issue for Medicare, which has no wage base cap.
Do employers pay FICA taxes separately from employee withholding?
Yes. Employers pay the employer share of FICA (6.2% SS + 1.45% Medicare = 7.65% of gross wages) entirely from their own funds - this is not deducted from employee wages. It is a separate employer payroll cost. For a $75,000 salary, the employer pays $5,737.50 in FICA on top of the gross salary, making the true cost to hire that employee $80,737.50. Employers also collect and remit the employee's FICA withholding.
Are independent contractors subject to FICA taxes?
Independent contractors (1099 workers) are not employees, so no FICA is withheld by the payer. Instead, they pay SE tax on their net profit - which is the self-employed equivalent of FICA. The rates and calculations are identical to SE tax: 12.4% SS + 2.9% Medicare on 92.35% of net earnings. Contractors must pay quarterly estimated taxes to cover both SE tax and income tax obligations.
Do Social Security benefits depend on FICA contributions?
Yes. The Social Security Administration tracks your 35 highest earning years on which FICA was paid and uses them to calculate your Primary Insurance Amount (PIA) - your monthly benefit at full retirement age. Higher FICA-taxed wages translate to a higher Social Security benefit. For Medicare Part A, premium-free eligibility requires 40 quarters (10 years) of covered work with FICA contributions. Self-employment SE tax counts toward both benefits.
Are tips included in FICA taxable wages?
Yes. Cash tips of $20 or more per month must be reported to your employer and are subject to FICA withholding just like regular wages. Your employer collects the employee FICA on tips from your next paycheck and remits the employer match. The total tips plus wages count toward the SS wage base limit. Allocated tips shown on Box 8 of your W-2 are also subject to FICA and must be reported on Form 4137.
Does FICA apply to retirement income and Social Security benefits?
No. FICA taxes apply only to earned income - wages, salaries, tips, and net self-employment income. Retirement distributions (401k, IRA, pension), investment income (dividends, capital gains), rental income, Social Security benefits, and most passive income are all exempt from FICA. However, if you work part-time in retirement and earn wages, FICA applies to those wages as normal.