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Idaho Income Tax Calculator
Estimate your 2026 Idaho state and federal income tax liability for W-2, self-employment, and investment income.
Idaho
Total Tax Liability
$11,086
for 2026
Income
Gross Income $75,000
Adjusted Gross Income $75,000
Standard Deduction -$16,100
Taxes
Federal Income Tax
$7,670 State Tax
$3,416Total Tax $11,086
After-Tax Income
$63,914Effective Rate
14.8%
Federal Marginal
22.0%
Cap Gains Rate
15.0%
State Rate
5.8%
This calculator provides estimates based on 2026 federal and state tax rates using the standard deduction. Actual tax liability may vary based on itemized deductions, tax credits, AMT, and other factors. Consult a tax professional for personalized advice.
How Idaho taxes your income
Flat 5.8%
Idaho applies a flat 5.8% state income tax to your taxable income — the same rate at every income level — on top of federal income tax.
Idaho income tax questions.
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