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FICA Tax Calculator

Calculate FICA taxes including Social Security and Medicare withholdings for employees and employers.

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Calculation Parameters

Specify your inputs below.

Calculated Result

Social Security Portion (6.2% / 12.4%) $217.00
Medicare Portion (1.45% / 2.9%) $50.75
Total FICA Tax Withheld $267.75
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Expert Tip

The Social Security tax has an annual wage ceiling above which no further FICA Social Security taxes are collected.

How this Calculator Works

Applies corresponding W-2 employee (6.2% SS + 1.45% Med) or self-employed rates to paycheck earnings.

Formula & Methodology

Social Security = Earnings * SS_Rate Medicare = Earnings * Med_Rate Total FICA = Social Security + Medicare

Step-by-Step Calculation Example

Here is a step-by-step example showing how the calculations are performed:

For $3,500 gross paycheck as W-2 employee: - Social Security = $217.00 - Medicare = $50.75 - Total FICA = $267.75

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Detailed Insights & Expert Guide

ℹ️ About this Calculation

This tax and salary compensation calculator calculates net take-home pay, federal/state tax brackets, FICA payroll withholdings (Social Security & Medicare), self-employment tax obligations, and tax-adjusted income streams based on IRS guidelines.

Variable Glossary

Input

Salary & Tax Data

Gross annual wages, pay frequency (biweekly/monthly), filing status (Single/Joint), state deductions, or 1099 profit.

Parameter

Tax Breakdown

Net Take-Home Pay ($), Effective Tax Rate %, Marginal Bracket %, and FICA/SECA withholding totals.

How to Calculate Step-by-Step

1

Step 1

Select your tax filing status, state/jurisdiction, and total gross salary or 1099 self-employment revenue.

2

Step 2

Enter pre-tax deductions (401k, HSA, health insurance premiums) and tax allowances/dependents.

3

Step 3

Review calculated paycheck net amount, itemized tax withholdings, and effective tax percentage.

FAQ

What is the difference between Marginal and Effective Tax Rate?
Your marginal tax rate is the tax percentage applied to your highest dollar of taxable income. Your effective tax rate is the total tax paid divided by your overall gross taxable income.
How does FICA tax withholding work in the United States?
FICA consists of Social Security (6.2% up to the annual wage cap) and Medicare (1.45% on all earnings, plus 0.9% additional Medicare tax for high earners).
Can tax calculators replace official IRS tax filings?
No. Online tax tools provide estimates based on standard statutory rates. Final tax liability depends on exact Form 1040 deductions, state credits, and professional advice from a CPA or Enrolled Agent.