How to Calculate & Formula Details
Mathematical Model Formula
Net Pay = Gross Pay - Federal Income Tax - FICA (Social Security & Medicare) - State Tax - Pre-tax DeductionsA paycheck calculator helps you estimate your actual take-home pay after taxes and payroll deductions are subtracted from your gross earnings. Whether you are salaried or paid hourly, understanding the difference between your gross pay and net pay is critical for budgeting.
Hourly vs. Salary Calculations
Salaried employees typically receive a fixed gross amount per pay period (e.g., bi-weekly or monthly), whereas hourly employees' gross pay is determined by multiplying the hours worked by their hourly rate. Overtime hours, usually calculated at 1.5 times the hourly rate, are added separately.
Common Payroll Deductions
- Federal Income Tax: Calculated based on your tax bracket, filing status (Single, Married), and W-4 declarations.
- FICA Taxes: 6.2% for Social Security and 1.45% for Medicare.
- State & Local Tax: Varies heavily by location. States like Texas and Florida have no state income tax, while California and New York have progressive rates.
- Pre-tax Deductions: Contributions to a 401(k) or health insurance premiums, which reduce your taxable income.