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The FICA Tax Calculator computes the Federal Insurance Contributions Act taxes deducted from your paycheck, consisting of Social Security tax (6.2% on wages up to the $176,100 wage base for 2025) and Medicare tax (1.45% on all wages, plus an Additional Medicare Tax of 0.9% on wages exceeding $200,000 for single filers or $250,000 for married filing jointly). FICA taxes fund the Social Security trust fund and Medicare Hospital Insurance program. Both employees and employers pay matching FICA amounts, making the combined rate 15.3% on most wages. Self-employed individuals pay both halves through the Self-Employment Contributions Act (SECA) tax, though they can deduct the employer-equivalent portion.
Total Employee FICA = min(Wages, $176,100) x 6.2% + Wages x 1.45% + max(0, Wages - $200,000) x 0.9%
- 1Enter your total gross wages subject to FICA (W-2 wages, tips, and other compensation). Note that pre-tax retirement contributions to traditional 401(k) plans still count as FICA wages, unlike income tax withholding.
- 2The calculator applies the Social Security tax rate of 6.2% to wages up to the 2025 wage base limit of $176,100. Any wages above this threshold are exempt from Social Security tax.
- 3Medicare tax of 1.45% is applied to all wages with no cap. Unlike Social Security, there is no maximum wage base for the standard Medicare tax.
- 4If your wages exceed $200,000 ($250,000 MFJ, $125,000 MFS), the Additional Medicare Tax of 0.9% is applied to the excess. This additional tax is only paid by the employee; employers do not match it.
- 5The employer's matching portion is calculated: 6.2% Social Security (same wage base cap) plus 1.45% Medicare (no Additional Medicare Tax for employers). Total employer cost mirrors the employee amount minus the 0.9% surtax.
- 6For self-employed individuals, the calculator computes SECA tax at 15.3% (12.4% SS + 2.9% Medicare) on 92.35% of net self-employment earnings, plus the 0.9% Additional Medicare Tax if applicable.
- 7The calculator displays per-paycheck deductions, annual totals, and the combined employee-employer FICA burden, along with the effective FICA tax rate on your total wages.
Social Security: $85,000 x 6.2% = $5,270.00. Medicare: $85,000 x 1.45% = $1,232.50. No Additional Medicare Tax since wages are below $200,000. Per biweekly paycheck: $6,502.50 / 26 = $250.10.
Social Security: $176,100 x 6.2% = $10,918.20 (capped at wage base). Medicare: $300,000 x 1.45% = $4,350. Additional Medicare: ($300,000 - $200,000) x 0.9% = $900. Total employee FICA = $16,168.20. Employer pays $10,918.20 + $4,350 = $15,268.20 (no Additional Medicare Tax).
SECA base: $120,000 x 92.35% = $110,820. Social Security: $110,820 x 12.4% = $13,741.68. Medicare: $110,820 x 2.9% = $3,213.78. Total SECA: $16,955.46. The employer-equivalent half ($8,477.73) is deductible on Form 1040 as an adjustment to income.
Combined wages: $195,000. SS cap: $176,100. Job 1 withholds 6.2% x $100,000 = $6,200. Job 2 withholds 6.2% x $95,000 = $5,890. Total withheld: $12,090. Maximum owed: $176,100 x 6.2% = $10,918.20. Excess: $1,171.80 claimed as a credit on your 1040.
Employees reviewing their pay stubs to verify correct FICA withholding amounts and understand why their net pay is lower than expected.
Small business owners calculating the total employment cost per employee, which includes the employer's matching 7.65% FICA contribution on top of wages.
Self-employed freelancers budgeting for quarterly estimated tax payments that must include self-employment tax (both halves of FICA) in addition to income tax.
High earners planning compensation structures to understand how the Social Security wage base cap and Additional Medicare Tax surtax affect their total tax burden.
HR departments and payroll processors ensuring compliant FICA withholding for employees with unusual compensation structures such as tipped income, group-term life insurance, or stock options.
Tipped Employees
Tips of $20 or more per month are subject to FICA. Employees must report tips to their employer by the 10th of the following month. Employers pay their matching share of FICA on reported tips and may claim the Section 45B tax credit for the employer share of FICA on tips exceeding the federal minimum wage ($7.25/hour). Unreported tips are still subject to FICA, which the IRS can assess during an audit.
Church and Religious Organization Employees
Members of recognized religious orders who have taken a vow of poverty are exempt from FICA if the order certifies the exemption. Ministers and clergy may be treated as employees for income tax but self-employed for FICA purposes, paying SECA tax on their ministerial earnings. Churches can opt out of the employer FICA obligation by filing Form 8274, shifting the full 15.3% to the minister as self-employment tax.
Social Security Wage Base Adjustment with Multiple Employers
Each employer independently withholds Social Security tax up to the $176,100 wage base. If you work for two employers earning $100,000 each, both will withhold the full 6.2%, resulting in $12,400 total withheld against a maximum of $10,918.20. The $1,481.80 excess is claimed as a credit when filing your Form 1040. Employers do not get a refund of their matching overpayment; each employer's match is correctly limited to wages paid by that employer.
| Component | Employee Rate | Employer Rate | Wage Base / Threshold |
|---|---|---|---|
| Social Security (OASDI) | 6.2% | 6.2% | $176,100 |
| Medicare (HI) | 1.45% | 1.45% | No limit |
| Additional Medicare Tax | 0.9% | N/A (employee only) | $200,000 (S), $250,000 (MFJ), $125,000 (MFS) |
| Total FICA (below all thresholds) | 7.65% | 7.65% | Combined: 15.3% |
| Self-Employment (SECA) | 15.3% (on 92.35% of net SE income) | N/A | SS portion capped at $176,100 |
Will I ever get my Social Security taxes back?
Yes, through Social Security retirement benefits. Your lifetime Social Security taxes (along with employer contributions) fund future benefits calculated from your highest 35 years of earnings. The average retiree receives benefits roughly equal to 3-5 times their total SS contributions, depending on longevity and earnings history.
Why is my FICA tax different from my income tax?
FICA is a flat-rate payroll tax (6.2% + 1.45%) applied to wages with no standard deduction, personal exemptions, or most tax credits. Income tax uses progressive brackets and allows many deductions and credits. They are completely separate taxes that happen to be withheld from the same paycheck.
Do I pay FICA on investment income?
No, FICA only applies to earned income (wages, salaries, tips, and self-employment income). However, the 3.8% Net Investment Income Tax (NIIT) applies to investment income for high earners, functioning as a Medicare-equivalent tax on unearned income.
What happens if my employer over-withholds Social Security tax?
If a single employer over-withholds, they are responsible for refunding the excess. If excess withholding results from having multiple employers whose combined wages exceed the wage base, you claim the excess as a credit on Line 11 of Schedule 3 (Form 1040).
Are FICA taxes deductible?
Employee FICA taxes are not deductible on your personal tax return. However, self-employed individuals can deduct the employer-equivalent portion (half of SECA tax) as an adjustment to income on Form 1040, Schedule 1, Line 15. Employers deduct their matching FICA as a business expense.
Do part-time workers pay FICA?
Yes, FICA applies to all wages regardless of part-time or full-time status. There is no minimum earnings threshold for FICA on W-2 wages (though household employees have a $2,800 threshold for 2025). Even a teenager working a summer job pays FICA from the first dollar earned.
Sfat Pro
If you are self-employed, set aside at least 15.3% of your net income for SECA tax in addition to income tax. A common rule of thumb is to save 25-30% of freelance income for all federal taxes combined. Paying quarterly estimated taxes avoids the underpayment penalty and prevents a painful April surprise.
Știai că?
The original Social Security tax rate when FICA was enacted in 1935 was just 1% on the first $3,000 of wages (a maximum of $30 per year). Today, the maximum employee Social Security tax alone is $10,918.20, a 36,394% increase. If wages had grown at the same rate, the average American would earn over $1.4 million per year.