Single
Married Filing Jointly
Married Filing Separately
Head of Household
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Estimated Total Annual Payroll Taxes
$0.00
Understanding Your ADP Payroll Tax Calculation
Payroll taxes are a crucial component of employment, funding essential government programs like Social Security and Medicare, as well as state and local services. Companies like ADP specialize in managing these complex calculations and withholdings to ensure compliance and accuracy for both employers and employees. This calculator provides an estimated breakdown of common payroll taxes based on your input.
Key Components of Payroll Taxes:
Federal Income Tax: This is a progressive tax, meaning the tax rate increases as your income increases. The amount withheld depends on your gross pay, your filing status (Single, Married Filing Jointly, etc.), and the number of allowances you claim on your W-4 form (which this calculator simplifies by focusing on filing status).
FICA Taxes (Social Security & Medicare):
Social Security Tax: A fixed percentage (6.2%) is applied to earnings up to an annual wage base limit ($168,600 for 2024).
Medicare Tax: A fixed percentage (1.45%) is applied to all earnings. Higher earners may be subject to an additional Medicare tax.
These are often referred to as "FICA" taxes.
State Income Tax: Most states levy their own income tax, with rates and rules varying significantly. Some states have no income tax (e.g., Texas, Florida).
Local Income Tax: Some cities and municipalities impose their own income taxes.
Additional Withholding: This is an optional amount you can choose to have withheld from each paycheck to cover potential tax liabilities or to ensure you don't owe taxes at the end of the year.
How This Calculator Works:
This calculator estimates your total annual payroll taxes. It takes your annual salary and divides it by your pay frequency to determine your gross pay per pay period. It then applies simplified rates for federal income tax (based on filing status, with standard deduction assumptions), FICA taxes, state income tax (based on the selected state), and any specified local tax rate. An additional withholding amount is also factored in.
Disclaimer: This calculator uses simplified assumptions and standard tax rates for illustrative purposes. Actual tax withholding can be influenced by numerous factors, including tax credits, deductions beyond the standard deduction, pre-tax contributions (like 401(k) or health insurance premiums), and specific state/local tax nuances. It is not a substitute for professional tax advice or the official calculations performed by payroll providers like ADP. Always consult with a qualified tax professional for personalized guidance.
function calculateTaxes() {
var annualSalary = parseFloat(document.getElementById("annualSalary").value);
var payFrequency = parseInt(document.getElementById("payFrequency").value);
var filingStatus = document.getElementById("filingStatus").value;
var state = document.getElementById("state").value;
var localTaxRatePercent = parseFloat(document.getElementById("localTaxRate").value);
var additionalWithholding = parseFloat(document.getElementById("additionalWithholding").value);
// — Input Validation —
if (isNaN(annualSalary) || annualSalary < 0) {
alert("Please enter a valid Annual Salary.");
return;
}
if (isNaN(localTaxRatePercent) || localTaxRatePercent < 0) {
alert("Please enter a valid Local Tax Rate.");
return;
}
if (isNaN(additionalWithholding) || additionalWithholding < 0) {
alert("Please enter a valid Additional Withholding amount.");
return;
}
var grossPayPerPeriod = annualSalary / payFrequency;
var grossPayAnnual = annualSalary;
// — Tax Rate Definitions (Simplified for illustrative purposes) —
// These are approximations and do not reflect the full complexity of tax brackets.
var federalIncomeTaxRate = 0;
var ficaSocialSecurityRate = 0.062;
var ficaMedicareRate = 0.0145;
var stateIncomeTaxRate = 0;
var localTaxRate = localTaxRatePercent / 100;
// — Federal Income Tax Approximation (Based on Filing Status) —
// Using simplified annual tax amounts for demonstration.
// Real calculations use marginal tax brackets and deductions.
var estimatedAnnualFederalTax = 0;
if (filingStatus === "single") {
// Example: Standard Deduction approx $13,850 for 2023
// Taxable income approximation
var taxableIncome = Math.max(0, grossPayAnnual – 13850);
// Simplified rates: 10% on first $11,000, 12% on next $33,550, etc.
if (taxableIncome <= 11000) {
estimatedAnnualFederalTax = taxableIncome * 0.10;
} else if (taxableIncome <= 44550) {
estimatedAnnualFederalTax = (11000 * 0.10) + (taxableIncome – 11000) * 0.12;
} else { // Simplification for higher incomes
estimatedAnnualFederalTax = (11000 * 0.10) + (33550 * 0.12) + (taxableIncome – 44550) * 0.22; // Using 22% as a general higher rate
}
} else if (filingStatus === "married_filing_jointly") {
// Example: Standard Deduction approx $27,700 for 2023
var taxableIncome = Math.max(0, grossPayAnnual – 27700);
if (taxableIncome <= 22000) {
estimatedAnnualFederalTax = taxableIncome * 0.10;
} else if (taxableIncome <= 89050) {
estimatedAnnualFederalTax = (22000 * 0.10) + (taxableIncome – 22000) * 0.12;
} else { // Simplification for higher incomes
estimatedAnnualFederalTax = (22000 * 0.10) + (67050 * 0.12) + (taxableIncome – 89050) * 0.22; // Using 22% as a general higher rate
}
} else if (filingStatus === "married_filing_separately") {
// Example: Standard Deduction approx $13,850 for 2023
var taxableIncome = Math.max(0, grossPayAnnual – 13850);
if (taxableIncome <= 11000) {
estimatedAnnualFederalTax = taxableIncome * 0.10;
} else if (taxableIncome <= 44550) {
estimatedAnnualFederalTax = (11000 * 0.10) + (taxableIncome – 11000) * 0.12;
} else { // Simplification for higher incomes
estimatedAnnualFederalTax = (11000 * 0.10) + (33550 * 0.12) + (taxableIncome – 44550) * 0.22; // Using 22% as a general higher rate
}
} else if (filingStatus === "head_of_household") {
// Example: Standard Deduction approx $20,800 for 2023
var taxableIncome = Math.max(0, grossPayAnnual – 20800);
if (taxableIncome <= 11000) {
estimatedAnnualFederalTax = taxableIncome * 0.10;
} else if (taxableIncome <= 44550) {
estimatedAnnualFederalTax = (11000 * 0.10) + (taxableIncome – 11000) * 0.12;
} else { // Simplification for higher incomes
estimatedAnnualFederalTax = (11000 * 0.10) + (33550 * 0.12) + (taxableIncome – 44550) * 0.22; // Using 22% as a general higher rate
}
}
// Cap Social Security Tax
var socialSecurityWageBase = 168600; // 2024 limit
var totalSocialSecurityTax = Math.min(grossPayAnnual * ficaSocialSecurityRate, socialSecurityWageBase * ficaSocialSecurityRate);
// — State Income Tax Approximation —
// Using simplified flat rates for demonstration. Actual rates vary by state and income bracket.
// Includes states with no income tax.
switch(state) {
case "AK": case "FL": case "NV": case "SD": case "TN": case "TX": case "WA": case "WY":
stateIncomeTaxRate = 0; // States with no income tax
break;
case "CA": stateIncomeTaxRate = 0.093; break; // Example rate, actual is progressive
case "NY": stateIncomeTaxRate = 0.0685; break; // Example rate, actual is progressive
case "IL": stateIncomeTaxRate = 0.0495; break; // Flat rate
case "PA": stateIncomeTaxRate = 0.0307; break; // Flat rate
case "MA": stateIncomeTaxRate = 0.05; break; // Flat rate
case "NJ": stateIncomeTaxRate = 0.0537; break; // Example rate, actual is complex
default: stateIncomeTaxRate = 0.05; // Generic average for other states
}
var estimatedAnnualStateTax = grossPayAnnual * stateIncomeTaxRate;
// — Total Estimated Annual Taxes —
var totalEstimatedAnnualTaxes = estimatedAnnualFederalTax + totalSocialSecurityTax + (grossPayAnnual * ficaMedicareRate) + estimatedAnnualStateTax + (grossPayAnnual * localTaxRate) + additionalWithholding;
// — Result Formatting —
var formattedTotalTaxes = totalEstimatedAnnualTaxes.toFixed(2);
var perPaycheckTax = (totalEstimatedAnnualTaxes / payFrequency).toFixed(2);
document.getElementById("result-value").innerText = "$" + formattedTotalTaxes;
document.getElementById("per-paycheck-value").innerText = "Estimated per Paycheck: $" + perPaycheckTax;
}