Social Security tax stops at $176,100 in cumulative wages. This calculator uses your year-to-date wages to apply the cap correctly.
FICA tax calculator that breaks down Social Security and Medicare for both sides.
Enter gross wages, year-to-date earnings, and filing status to calculate employee and employer Social Security taxes, Medicare taxes, and the additional Medicare tax for high earners.
1. Enter your details
CalculatorEnter gross wages, year-to-date wages, and filing status to calculate FICA taxes with wage base and additional Medicare tax applied.
FICA Tax Calculator in the browser
Enter wages and filing details to calculate Social Security and Medicare taxes for employee and employer.
This page runs in the browser. No wage data is sent to any server.
What this FICA calculator solves
FICA taxes have wage base limits and additional tax thresholds that change the calculation mid-year. This calculator handles all of it.
The 0.9% additional Medicare tax starts at $200,000 for single filers. This calculator flags when it applies and calculates the extra amount.
See both halves of FICA side by side, with the employer match calculated separately from the additional Medicare tax (employee-only).
Key signals
Employee FICA, employer FICA, Social Security taxable wages, and additional Medicare tax.
Decision support
Wage base proximity, additional Medicare tax status, and annual projection.
Detailed breakdown
Line-by-line Social Security and Medicare tax detail for employee and employer.
Automatically stops Social Security tax at $176,100 using your year-to-date wages to calculate remaining taxable earnings.
Applies the extra 0.9% Medicare tax on wages exceeding the filing-status threshold ($200K single, $250K joint).
Shows employee withholding and employer match separately, making Form 941 reconciliation straightforward.
Factors in wages already earned this year so mid-year and late-year calculations respect cumulative limits.
How to use the FICA tax calculator well
Key concepts, practical steps, and guidance for calculating employment taxes accurately.
A FICA tax calculator computes Social Security tax (6.2% up to the wage base) and Medicare tax (1.45% on all wages, plus 0.9% additional Medicare tax above the threshold) for both the employee and employer portions, factoring in year-to-date wages and filing status.
Employees who want to understand their paycheck deductions, payroll administrators verifying withholding amounts, small business owners calculating employer costs, and accountants reconciling quarterly 941 filings.
The Social Security wage base ($176,100 for 2026) caps the 6.2% tax. Year-to-date wages determine how much of the current period is still taxable. The additional Medicare tax threshold depends on filing status, not just income level.
Four practical steps
Use this calculator to verify FICA withholding, plan for wage base limits, and confirm employer matching obligations.
Use the gross wage amount before any pre-tax deductions. FICA is calculated on gross wages (with limited exceptions for some pre-tax benefits).
This determines how close you are to the Social Security wage base. If YTD wages plus current wages exceed $176,100, only the portion below the cap is taxed for Social Security.
Filing status determines the additional Medicare tax threshold: $200,000 for single, $250,000 for married filing jointly, or $125,000 for married filing separately.
Check employee Social Security, employee Medicare, additional Medicare tax, employer Social Security, and employer Medicare. Compare against your pay stub or 941.
What to validate first
Key details that affect FICA tax calculations.
The most common FICA calculation error is using the wrong YTD wages. Pull from your most recent pay stub or payroll report to get an accurate number.
Most Section 125 (cafeteria plan) deductions reduce wages subject to FICA. However, 401(k) contributions do not reduce FICA-taxable wages. Know which deductions apply.
If you work for multiple employers, each employer withholds Social Security up to the full wage base. You may be over-withheld and can claim a credit on your tax return.
Self-employed individuals pay both halves of FICA (15.3%) as self-employment tax. If you have both W-2 and self-employment income, the wage base applies to combined earnings.
Employers must withhold the additional 0.9% Medicare tax once wages exceed $200,000 in a calendar year, regardless of filing status. Adjustments happen on your tax return.
The Social Security wage base increases most years based on national average wage growth. Verify you are using the correct year's wage base when calculating.
Built to make FICA tax transparent for employees and employers alike
FICA is the largest payroll tax most workers pay, yet many do not understand how wage bases and additional taxes work. This page breaks it all down.
See every component of Social Security and Medicare tax, including how much your employer pays on your behalf.
Know exactly when Social Security tax stops mid-year and how much you will save on withholding after reaching the cap.
Ledger Summit can build payroll tax tools for accounting firms and HR departments. This page delivers value right now.
FICA tax questions, answered directly
Short answers for searchers and answer engines.
FICA stands for the Federal Insurance Contributions Act. It combines Social Security tax (6.2%) and Medicare tax (1.45%) withheld from employee wages. Employers pay a matching amount, making the total rate 15.3% on wages up to the Social Security wage base.
The 2026 FICA rate is 7.65% for employees (6.2% Social Security + 1.45% Medicare) and 7.65% for employers, totaling 15.3%. Social Security applies to wages up to $176,100. Medicare applies to all wages, with an additional 0.9% above $200,000 for single filers.
The 2026 Social Security wage base is $176,100. This is the maximum earnings subject to the 6.2% Social Security tax. Wages above this amount are exempt from Social Security tax, though Medicare tax still applies.
An extra 0.9% Medicare tax applies to wages exceeding $200,000 (single), $250,000 (married filing jointly), or $125,000 (married filing separately). Only the employee pays this tax. The employer does not match it.
Both. Employees pay 7.65% and employers match 7.65%. The additional 0.9% Medicare tax is employee-only. Self-employed individuals pay both halves (15.3%) as self-employment tax, with a deduction for half.
Need payroll tax calculation tools for your practice?
Use the free FICA calculator to verify withholding. If you need multi-employee payroll tools or automated FICA reconciliation, Ledger Summit can build the next layer.
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