This calculator provides an estimate of your net pay for each paycheck based on your hourly wage, hours worked, and pay frequency in New Jersey. New Jersey has specific tax regulations that affect your take-home pay. The primary deductions calculated here are:
Federal Income Tax: Calculated based on IRS tax brackets and information you might typically provide on a W-4 form (though simplified for this calculator).
Social Security Tax: A flat rate of 6.2% on earnings up to an annual limit (which varies year to year).
Medicare Tax: A flat rate of 1.45% on all earnings.
New Jersey State Income Tax: New Jersey has a progressive tax system with varying rates based on income.
NJ Family Leave Insurance (FLI): A small percentage deducted from your gross pay.
NJ Unemployment Insurance (UI): A small percentage deducted from your gross pay, capped at a certain wage base.
How the Calculation Works (Simplified):
Gross Pay: Calculated as Hourly Wage × Hours Per Week × (52 Weeks / Pay Periods Per Year). This represents your total earnings before any deductions.
Federal Taxes: This calculator uses a simplified approach. For precise calculations, you'd need to consider W-4 allowances and additional deductions. We estimate this based on standard federal tax rates.
FICA Taxes (Social Security & Medicare): Social Security is 6.2% (up to the annual limit), and Medicare is 1.45% on all earnings.
New Jersey State Taxes: Based on NJ's progressive tax rates and filing status (assumed single, no dependents for simplicity).
NJ FLI/UI: Deducted at the current statutory rates from gross pay.
Net Pay:Gross Pay - Federal Taxes - Social Security - Medicare - NJ State Tax - NJ FLI - NJ UI.
Important Considerations:
This calculator provides an estimate. Actual net pay may vary due to factors like specific W-4 elections, additional voluntary deductions (e.g., 401k, health insurance premiums), tax credits, and changes in tax laws.
The Social Security tax has an annual wage base limit. Once your year-to-date earnings exceed this limit, Social Security deductions stop for the rest of the year. This calculator applies this limit annually.
Tax rates and contribution percentages are subject to change. This calculator uses current known rates as of its last update.
Use this tool to get a general idea of your expected take-home pay per paycheck in New Jersey. For definitive figures, always refer to your official pay stub or consult with your employer's HR or payroll department.
function calculateNetPay() {
var hourlyWage = parseFloat(document.getElementById("hourlyWage").value);
var hoursPerWeek = parseFloat(document.getElementById("hoursPerWeek").value);
var payPeriodsPerYear = parseFloat(document.getElementById("payPeriodsPerYear").value);
var netPayElement = document.getElementById("netPay");
// Input validation
if (isNaN(hourlyWage) || isNaN(hoursPerWeek) || isNaN(payPeriodsPerYear) ||
hourlyWage <= 0 || hoursPerWeek <= 0 || payPeriodsPerYear 0 ? (52 / payPeriodsPerYear) : 52); // Base calculation for annual gross
var grossPerPaycheck = grossAnnualSalary / payPeriodsPerYear;
// Social Security Tax
var socialSecurityWageBaseAnnual = 168600; // 2024 limit – update as needed
var socialSecurityTaxableIncome = Math.min(grossAnnualSalary, socialSecurityWageBaseAnnual);
var totalSocialSecurityTax = socialSecurityTaxableIncome * socialSecurityRate;
var socialSecurityPerPaycheck = totalSocialSecurityTax / payPeriodsPerYear;
// Medicare Tax
var totalMedicareTax = grossAnnualSalary * medicareRate;
var medicarePerPaycheck = totalMedicareTax / payPeriodsPerYear;
// NJ UI Tax
var njUITaxableWageBase = Math.min(grossAnnualSalary, njUISalaryBase);
var totalNJUITax = njUITaxableWageBase * (njUICapRate / 100); // Assuming rate is percentage
var njUIPerPaycheck = totalNJUITax / payPeriodsPerYear;
// NJ FLI Tax
var totalNJFLITax = grossAnnualSalary * njFLIRate;
var njFLIPerPaycheck = totalNJFLITax / payPeriodsPerYear;
// Federal Income Tax (Simplified estimation)
// This is a very rough estimate. Real calculations depend on W-4, tax brackets, etc.
var federalTaxableIncome = Math.max(0, grossAnnualSalary – (totalSocialSecurityTax + totalMedicareTax + totalNJFLITax + totalNJUITax) – 12950); // Standard deduction for single filer, 2023 example
var federalIncomeTaxAnnual = 0;
// Simplified Federal Brackets (example for 2023, single filer)
if (federalTaxableIncome > 0) {
if (federalTaxableIncome <= 11000) federalIncomeTaxAnnual += federalTaxableIncome * 0.10;
else {
federalIncomeTaxAnnual += 11000 * 0.10;
federalTaxableIncome -= 11000;
if (federalTaxableIncome <= 33550) federalIncomeTaxAnnual += federalTaxableIncome * 0.12;
else {
federalIncomeTaxAnnual += 33550 * 0.12;
federalTaxableIncome -= 33550;
if (federalTaxableIncome <= 70000) federalIncomeTaxAnnual += federalTaxableIncome * 0.22;
else {
federalIncomeTaxAnnual += 70000 * 0.22;
federalTaxableIncome -= 70000;
if (federalTaxableIncome <= 170050) federalIncomeTaxAnnual += federalTaxableIncome * 0.24;
else {
federalIncomeTaxAnnual += 170050 * 0.24;
federalTaxableIncome -= 170050;
if (federalTaxableIncome <= 345000) federalIncomeTaxAnnual += federalTaxableIncome * 0.32;
else {
federalIncomeTaxAnnual += 345000 * 0.32;
federalTaxableIncome -= 345000;
federalIncomeTaxAnnual += federalTaxableIncome * 0.35;
}
}
}
}
}
}
var federalIncomeTaxPerPaycheck = federalIncomeTaxAnnual / payPeriodsPerYear;
// New Jersey State Income Tax (Simplified estimation)
// Based on NJ progressive rates (example for 2023, single filer) – Verify current NJ tax rates
var njStateTaxableIncome = Math.max(0, grossAnnualSalary – (totalSocialSecurityTax + totalMedicareTax + totalNJFLITax + totalNJUITax)); // Simplified deductions
var njStateIncomeTaxAnnual = 0;
// NJ Tax Brackets (example – adjust based on filing status if needed)
if (njStateTaxableIncome <= 20550) njStateIncomeTaxAnnual = njStateTaxableIncome * 0.0107;
else if (njStateTaxableIncome <= 41100) njStateIncomeTaxAnnual = (20550 * 0.0107) + ((njStateTaxableIncome – 20550) * 0.0247);
else if (njStateTaxableIncome <= 61650) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + ((njStateTaxableIncome – 41100) * 0.0307);
else if (njStateTaxableIncome <= 82200) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + ((njStateTaxableIncome – 61650) * 0.0366);
else if (njStateTaxableIncome <= 102750) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + (20550 * 0.0366) + ((njStateTaxableIncome – 82200) * 0.0425);
else if (njStateTaxableIncome <= 154100) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + (20550 * 0.0366) + (20550 * 0.0425) + ((njStateTaxableIncome – 102750) * 0.0474);
else if (njStateTaxableIncome <= 205500) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + (20550 * 0.0366) + (20550 * 0.0425) + (51350 * 0.0474) + ((njStateTaxableIncome – 154100) * 0.0503);
else if (njStateTaxableIncome <= 751850) njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + (20550 * 0.0366) + (20550 * 0.0425) + (51350 * 0.0474) + (51400 * 0.0503) + ((njStateTaxableIncome – 205500) * 0.0637);
else njStateIncomeTaxAnnual = (20550 * 0.0107) + (20550 * 0.0247) + (20550 * 0.0307) + (20550 * 0.0366) + (20550 * 0.0425) + (51350 * 0.0474) + (51400 * 0.0503) + (546350 * 0.0637) + ((njStateTaxableIncome – 751850) * 0.0897); // Top bracket
var njStateIncomeTaxPerPaycheck = njStateIncomeTaxAnnual / payPeriodsPerYear;
// Net Pay Calculation Per Paycheck
var totalDeductionsPerPaycheck =
federalIncomeTaxPerPaycheck +
socialSecurityPerPaycheck +
medicarePerPaycheck +
njUIPerPaycheck +
njFLIPerPaycheck +
njStateIncomeTaxPerPaycheck;
var netPay = grossPerPaycheck – totalDeductionsPerPaycheck;
// Display Result
if (netPay < 0) netPay = 0; // Cannot have negative net pay
netPayElement.innerText = "$" + netPay.toFixed(2);
}