Idaho Paycheck Calculator 2026

The Idaho Paycheck Calculator helps employees estimate their take-home pay after federal income tax, Idaho state income tax, Social Security, Medicare and other paycheck deductions.

Idaho is different from states that have no individual income tax. Idaho imposes state income tax on taxable individual income. For 2026, the Idaho individual income tax rate is 5.3%.

How the Idaho Paycheck Calculator Works

Enter your annual salary or hourly wage, select your pay frequency and choose your filing status. You can also enter pre-tax deductions, post-tax deductions and additional federal withholding.

The calculator estimates your annual federal income tax, Idaho income tax and federal payroll taxes. It then converts the annual amounts into your selected paycheck frequency.

Idaho Income Tax Rate 2026

For tax year 2026, Idaho’s individual income tax rate is 5.3%.

Unlike a progressive state income-tax system, Idaho uses a flat individual income-tax rate for taxable income. However, your actual Idaho tax liability depends on taxable income, deductions, filing status and applicable credits.

Idaho Standard Deduction 2026

For 2026, Idaho’s standard deduction amounts are:

• $5,700 for Single taxpayers.
• $5,700 for Married Filing Separately.
• $11,400 for Married Filing Jointly.
• $11,400 for Qualifying Surviving Spouse.

Federal Taxes on an Idaho Paycheck

Living and working in Idaho does not eliminate federal income or payroll taxes. Idaho employees generally pay federal income tax withholding along with Social Security and Medicare taxes.

Social Security Tax

For 2026, the employee Social Security tax rate is 6.2%.

The 2026 Social Security wage base is $184,500. Wages above that annual limit are not subject to the employee Social Security tax.

Medicare Tax

The standard employee Medicare tax rate is 1.45%.

Unlike Social Security, Medicare generally does not have the same annual wage base limit. An additional 0.9% Medicare tax may apply to wages above $200,000 under federal withholding rules.

Idaho Paycheck Examples

Weekly vs. Biweekly Pay in Idaho

A weekly employee generally receives 52 paychecks per year. A biweekly employee generally receives 26 paychecks. Semi-monthly employees generally receive 24 paychecks, while monthly employees receive 12.

Changing your pay frequency does not change your annual salary. It changes the amount of money included in each individual paycheck.

Hourly Pay and Overtime

Hourly employees can enter their hourly wage and regular weekly hours. The calculator also provides an optional overtime input.

The overtime section is intended for estimation and planning. Actual overtime compensation can depend on applicable federal law, Idaho requirements, employee classification and employer policies.

Pre-Tax and Post-Tax Deductions

Some employee benefits may be deducted before certain taxes are calculated, while other deductions are taken after taxes.

Examples may include qualifying retirement contributions, health insurance premiums and other employer-sponsored benefits. The exact tax treatment depends on the specific benefit or deduction.

Why Your Actual Idaho Paycheck May Be Different

An online paycheck calculator provides an estimate rather than reproducing every calculation performed by your employer’s payroll system.

Your actual paycheck may differ because of your federal Form W-4, Idaho withholding information, deductions, benefits, credits, retirement contributions, bonuses and additional withholding.

Is Idaho a Flat-Tax State?

Yes. Idaho uses a flat individual income-tax rate for 2026 rather than multiple marginal individual income-tax brackets.

For 2026, the Idaho individual income tax rate is 5.3%. Your taxable income can still be reduced by applicable deductions before the state tax is calculated.

Frequently Asked Questions