Free Tool
Idaho Income Tax Calculator
Estimate your 2026 Idaho state and federal income tax liability for W-2, self-employment, and investment income.
On $75,000 of W-2 income, a single filer in Idaho owes about $10,537 in income tax for 2026 — $7,670 federal plus $2,867 to Idaho — leaving roughly $64,463 before FICA payroll taxes.
Total tax liability
for 2026
Effective Rate
14.0%
Federal marginal
22.0%
Cap gains rate
15.0%
State rate
5.3%
2026 federal tables from IRS Rev. Proc. 2025-32; Idaho rates from the state's revenue department and statutes (2026 rates; brackets, standard deduction and exemptions from the latest published state tables, 2025 where the state has not released 2026 figures). Reviewed by Junead Khan. Last updated .
How Idaho taxes your income
Progressive — 0% to 5.3%
Idaho income tax brackets
Single
Married filing jointly
Rates apply to taxable income. The calculator above uses the schedule for your filing status, including head of household where the state has its own.
Idaho allows the federal standard deduction ($16,100, or $32,200 for married couples filing jointly).
Idaho income tax questions.
Yes. Idaho has a progressive income tax with rates from 0% to 5.3%.
Rates range from 0% to 5.3% across 2 brackets, in addition to federal income tax. Idaho allows the federal standard deduction ($16,100, or $32,200 for married couples filing jointly).
On $75,000 of W-2 income (single filer), an estimated $10,537 in total income tax — including about $2,867 to Idaho, leaving roughly $64,463 after income tax (before FICA payroll taxes). Adjust income and filing status in the calculator above for your exact numbers.
About 14.05% combined federal and state income tax for a single filer, of which roughly 3.82% is Idaho state tax. FICA payroll taxes (7.65% for most employees) come on top of that.
Estimates use 2026 federal and state tax rates, and each state's own brackets, standard deduction and personal exemptions for your filing status. Your actual liability varies with itemized deductions, dependents, other credits, local taxes, and other income.
More income tax calculators
Nearby states
States with no income tax
See how much further your money can go.
Let Treasury uncover missed opportunities and show you what is possible across your entire financial life.
14-day free trial · Cancel anytime