Idaho Payroll Tax Calculator 2026

Last updated: September 2026 · 2026 IRS & state tax rates

Calculate your exact Idaho take-home pay. State income tax: 5.8% flat. Includes federal taxes and FICA.

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Net Take-Home Per Paycheck
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DeductionPer PaycheckAnnual
Gross Pay——
Federal Income Tax——
Idaho State Tax——
Social Security (6.2%)——
Medicare (1.45%)——
Total Deductions——
Net Take-Home——

Idaho Payroll Tax Calculator 2026

Idaho simplified its income tax structure to a flat 5.8% rate effective 2023. Previously a graduated system, Idaho now taxes all income above the exemption at the same flat rate. The standard deduction for single filers is $14,600 (aligned with federal). Idaho does not tax Social Security benefits.

All Payroll Deductions in Idaho (2026)

  • Federal income tax: 10%–37% (2026 IRS brackets; single filer pays 22% bracket above ~$50,000 taxable income)
  • Idaho state income tax: 5.8% flat rate
  • Social Security: 6.2% on wages up to $176,100 (2026 wage base)
  • Medicare: 1.45% on all wages (no cap); additional 0.9% on wages over $200,000
  • Payroll Taxes Guide
  • Overtime Rules
  • Tax Withholding Guide

Notable Idaho Tax Features

Idaho residents also receive a grocery tax credit of $120 per person ($140 for seniors), partially offsetting the state's sales tax on groceries. The credit is claimed on the state income tax return.

Idaho vs Neighboring States

For a $60,000 earner in Idaho, state income tax is approximately $3,200–$3,400/year. Idaho's relatively low cost of living and moderate flat tax make it an attractive option compared to higher-cost neighboring states like California.

About This Calculator

This Idaho payroll tax calculator uses 2026 federal and state rates from IRS Publication 15-T and the Idaho Department of Revenue. Results are estimates based on the annualized withholding method. Actual withholding may differ based on W-4 elections, local income taxes, itemized deductions, tax credits, and pre-tax benefits. Always verify with your payroll provider or a tax professional for official payroll purposes.