Payroll Deduction Calculator
Calculate net pay after deductions including federal tax, state tax, Social Security, Medicare, and other deductions.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Payroll Deduction Calculator
- Enter Gross Pay – Input your gross pay amount (before any deductions) in the Gross Pay ($) field. Use a positive number (e.g., 5000).
- Select Pay Frequency – Choose how often you get paid: Weekly, Biweekly, Semi-monthly, or Monthly. This affects annual calculations.
- Set Allowances – Enter the number of Federal Allowances and State Allowances (default is 2). These adjust taxable income.
- Input State Tax Rate – Provide your state’s flat tax rate as a percentage (e.g., 5 for 5%). Must be between 0 and 100.
- Add Other Deductions – Enter any additional deductions (e.g., retirement, insurance) in dollars. Default is 0.
- Choose Filing Status – Select your tax filing status: Single, Married, or Head of Household.
- Calculate – Click the Calculate Net Pay button or press Enter. Results show net pay and a breakdown of all deductions.
Outputs Explained: The calculator shows net pay after subtracting federal income tax (using simplified 2024 brackets), Social Security (6.2% up to $160,200/year), Medicare (1.45%), state tax (flat rate on taxable income), and other deductions. All amounts are per pay period.
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Frequently Asked Questions
A payroll deduction calculator estimates your net pay (take-home pay) after subtracting mandatory and voluntary deductions from your gross pay.
Federal income tax is estimated using simplified IRS tax brackets for the current year, based on your filing status, taxable income, and allowances.
The calculator includes federal income tax, Social Security (6.2%), Medicare (1.45%), state income tax (flat rate you provide), and other deductions (e.g., retirement, insurance).
