— Select a State —
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
Understanding State Income Tax
State income tax is a tax levied by state governments on your earnings. The U.S. has a diverse tax landscape, with some states imposing income tax and others not. For states that do have income tax, the rates and structures can vary significantly, impacting your overall tax liability.
This calculator provides an *estimate* of your state income tax based on the income you provide and the state you select. It's important to note that state income tax systems are often complex and can involve various deductions, credits, filing statuses (single, married filing jointly, etc.), and tax brackets.
How State Income Tax Works:
Progressive Tax Systems: Many states use a progressive tax system. This means that the tax rate increases as your income increases. Higher earners pay a larger percentage of their income in taxes. The income is divided into "tax brackets," with different rates applied to each bracket.
Flat Tax Systems: Some states have a flat tax system, where a single tax rate applies to all income levels, regardless of how much you earn.
No State Income Tax: A handful of states currently do not levy any state income tax on wages. These states often rely on other forms of revenue, such as sales taxes or property taxes.
Deductions and Credits: States offer various deductions (reducing taxable income) and credits (directly reducing tax owed) that can significantly lower your tax bill. These can be for things like dependents, education expenses, medical costs, or retirement contributions.
Using This Calculator:
To use this calculator, simply enter your estimated annual income and select your state of residence from the dropdown menu. Then, click "Calculate Tax." The result will provide an approximation of your state income tax liability.
Disclaimer: This calculator is intended for informational purposes only and should not be considered definitive tax advice. State tax laws are subject to change and can be highly individualized. For precise tax calculations and advice, consult with a qualified tax professional or refer to your state's official tax authority website. This calculator uses simplified models and does not account for all possible deductions, credits, or specific state tax regulations.
States Without Income Tax:
As of recent data, the following states typically do not have a state income tax on wages: Alaska, Florida, Nevada, New Hampshire (taxes interest and dividends but not wages), South Dakota, Tennessee (taxes interest and dividends but not wages), Texas, Washington, and Wyoming. However, always verify current regulations as laws can change.
Important Considerations:
Filing Status: Your tax liability can differ based on whether you file as single, married filing jointly, or another status.
Local Taxes: Some cities and counties also impose their own income taxes, which are separate from state income tax.
Taxable Income: The amount you input is your gross income. Your actual taxable income may be lower after considering deductions.
function calculateStateTax() {
var income = parseFloat(document.getElementById("income").value);
var state = document.getElementById("state").value;
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(income) || income < 0) {
resultDiv.innerHTML = "Please enter a valid income.";
resultDiv.style.backgroundColor = "#dc3545"; // Red for error
return;
}
if (state === "") {
resultDiv.innerHTML = "Please select a state.";
resultDiv.style.backgroundColor = "#dc3545"; // Red for error
return;
}
var taxRate = 0;
var estimatedTax = 0;
// Simplified tax brackets and rates. Real-world calculations are much more complex.
// This is a highly generalized model.
switch (state) {
// States with no income tax on wages (simplified)
case "AK": // Alaska
case "FL": // Florida
case "NV": // Nevada
case "SD": // South Dakota
case "TX": // Texas
case "WA": // Washington
case "WY": // Wyoming
taxRate = 0;
estimatedTax = 0;
break;
case "NH": // New Hampshire (taxes interest/dividends, not wages)
case "TN": // Tennessee (taxes interest/dividends, not wages)
taxRate = 0; // For wage income
estimatedTax = 0;
break;
// States with flat tax rates (simplified)
case "IL": // Illinois (e.g., 4.95%)
taxRate = 0.0495;
estimatedTax = income * taxRate;
break;
case "IN": // Indiana (e.g., 3.23%)
taxRate = 0.0323;
estimatedTax = income * taxRate;
break;
case "MI": // Michigan (e.g., 4.25%)
taxRate = 0.0425;
estimatedTax = income * taxRate;
break;
case "MA": // Massachusetts (e.g., 5.00%)
taxRate = 0.0500;
estimatedTax = income * taxRate;
break;
case "PA": // Pennsylvania (e.g., 3.07%)
taxRate = 0.0307;
estimatedTax = income * taxRate;
break;
case "UT": // Utah (e.g., 4.85% as of 2023)
taxRate = 0.0485;
estimatedTax = income * taxRate;
break;
case "KY": // Kentucky (e.g., 5.00% as of 2024)
taxRate = 0.0500;
estimatedTax = income * taxRate;
break;
// States with progressive tax brackets (highly simplified example)
case "CA": // California (example brackets, very simplified)
if (income <= 9325) {
taxRate = 0.02;
estimatedTax = income * taxRate;
} else if (income <= 22107) {
taxRate = 0.04;
estimatedTax = (9325 * 0.02) + (income – 9325) * taxRate;
} else if (income <= 34889) {
taxRate = 0.06;
estimatedTax = (9325 * 0.02) + (22107 – 9325) * 0.04 + (income – 22107) * taxRate;
} else if (income <= 47670) {
taxRate = 0.08;
estimatedTax = (9325 * 0.02) + (22107 – 9325) * 0.04 + (34889 – 22107) * 0.06 + (income – 34889) * taxRate;
} else { // Higher brackets
taxRate = 0.093; // Example top marginal rate
estimatedTax = (9325 * 0.02) + (22107 – 9325) * 0.04 + (34889 – 22107) * 0.06 + (47670 – 34889) * 0.08 + (income – 47670) * taxRate;
}
break;
case "NY": // New York (example brackets, very simplified)
if (income <= 11950) {
taxRate = 0.04;
estimatedTax = income * taxRate;
} else if (income <= 25000) {
taxRate = 0.045;
estimatedTax = (11950 * 0.04) + (income – 11950) * taxRate;
} else if (income <= 50000) {
taxRate = 0.0625;
estimatedTax = (11950 * 0.04) + (25000 – 11950) * 0.045 + (income – 25000) * taxRate;
} else { // Higher brackets
taxRate = 0.0685; // Example top marginal rate
estimatedTax = (11950 * 0.04) + (25000 – 11950) * 0.045 + (50000 – 25000) * 0.0625 + (income – 50000) * taxRate;
}
break;
case "CO": // Colorado (flat tax, but example showing bracket logic for diversity)
// Colorado has a single rate but demonstrates bracket structure
taxRate = 0.0440; // Example rate (as of 2023)
estimatedTax = income * taxRate;
break;
case "AZ": // Arizona (example brackets)
if (income <= 15117) {
taxRate = 0.0253;
estimatedTax = income * taxRate;
} else if (income <= 27757) {
taxRate = 0.0297;
estimatedTax = (15117 * 0.0253) + (income – 15117) * taxRate;
} else if (income <= 38477) {
taxRate = 0.0349;
estimatedTax = (15117 * 0.0253) + (27757 – 15117) * 0.0297 + (income – 27757) * taxRate;
} else if (income <= 175715) {
taxRate = 0.0421;
estimatedTax = (15117 * 0.0253) + (27757 – 15117) * 0.0297 + (38477 – 27757) * 0.0349 + (income – 38477) * taxRate;
} else { // Higher brackets
taxRate = 0.0450; // Example top marginal rate
estimatedTax = (15117 * 0.0253) + (27757 – 15117) * 0.0297 + (38477 – 27757) * 0.0349 + (175715 – 38477) * 0.0421 + (income – 175715) * taxRate;
}
break;
// Add more states and their specific tax logic here
// Example: Default or for states not explicitly listed
default:
resultDiv.innerHTML = "Tax calculation for this state is not available in this simplified model.";
resultDiv.style.backgroundColor = "#ffc107"; // Warning yellow
return;
}
// Format currency
var formattedIncome = income.toLocaleString('en-US', { style: 'currency', currency: 'USD' });
var formattedTax = estimatedTax.toLocaleString('en-US', { style: 'currency', currency: 'USD' });
resultDiv.innerHTML = "Estimated State Tax: " + formattedTax;
resultDiv.style.backgroundColor = "#28a745"; // Success green
// Log details for debugging or more advanced display
console.log("State:", state);
console.log("Income:", income);
console.log("Estimated Tax:", estimatedTax);
console.log("Tax Rate (approximate):", taxRate);
}