FICA Calculator 2026

What FICA includes

FICA generally refers to employee-side Social Security and Medicare payroll taxes. Social Security has a wage base limit, while Medicare does not have the same wage cap and may include Additional Medicare Tax above certain wage thresholds.

FICA is separate from federal income tax withholding. A worker can have little federal income tax withheld and still see FICA on the paycheck.

Why FICA matters

FICA is one of the most consistent paycheck deductions for employees. When comparing jobs, raises, overtime, or bonuses, include FICA so take-home pay is not overstated.

How to use this estimate responsibly

This page is built as a planning tool, not a payroll system. Start with a realistic gross wage amount, select the correct pay frequency, enter deductions from a real pay stub when possible, and treat the result as a range rather than a guarantee. If the result does not match your employer's payroll, compare each line: gross wages, taxable wages, federal income tax, FICA, state withholding, pre-tax deductions, and post-tax deductions.

The most useful workflow is to calibrate the calculator against one actual paycheck. Once the baseline is close, change one input at a time. For example, test a higher gross amount, a new deduction, a different state withholding assumption, or an extra withholding amount. This shows which input changes your take-home pay instead of guessing from the final number alone.

What this calculator intentionally leaves out

Public calculators cannot know every local tax, employer benefit rule, year-to-date wage amount, garnishment, reimbursement, fringe benefit, payroll rounding rule, or supplemental wage method. Those missing details are why this site keeps a visible methodology and source page. The calculator provides an educational estimate and explains its limits so users can make better questions for payroll, tax software, or a qualified professional.

Best way to use the FICA Calculator

For the most useful result, use the FICA Calculator with numbers that match the question you are trying to answer. A job-offer estimate should start with the stated salary, hourly rate, expected hours, or bonus amount. A pay-stub check should start with the actual gross pay from that pay period. Keep pre-tax deductions, post-tax deductions, and extra withholding separate because each one affects the estimate in a different way.

After the calculator returns a result, compare the estimate with the surrounding explanation on this page. If the number looks too high or too low, check the pay frequency, state setting, deduction timing, and whether the wages include overtime, bonus pay, reimbursements, or unpaid time. The FICA Calculator is best used as an educational planning tool: it can show the likely direction and size of paycheck changes, but exact payroll depends on employer systems, official withholding methods, local rules, and user-specific forms.

Best way to use the FICA Calculator

For the most useful result, use the FICA Calculator with numbers that match the question you are trying to answer. A job-offer estimate should start with the stated salary, hourly rate, expected hours, or bonus amount. A pay-stub check should start with the actual gross pay from that pay period. Keep pre-tax deductions, post-tax deductions, and extra withholding separate because each one affects the estimate in a different way.

After the calculator returns a result, compare the estimate with the surrounding explanation on this page. If the number looks too high or too low, check the pay frequency, state setting, deduction timing, and whether the wages include overtime, bonus pay, reimbursements, or unpaid time. The FICA Calculator is best used as an educational planning tool: it can show the likely direction and size of paycheck changes, but exact payroll depends on employer systems, official withholding methods, local rules, and user-specific forms.

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