UNITED STATES / IDAHO / TAX TABLES / 2026

Idaho tax tables 2026

Name: Idaho tax tables 2026
Creator: CalcBloc
License: https://creativecommons.org/licenses/by/4.0/

The figures set by or for Idaho for 2026: income tax brackets, payroll contributions and employer rates. Federal or national figures for the US are on the national page.

In force: 2026-01-01 to 2026-12-31
Currency: USD
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Income tax

Idaho income tax: key figures

Item	Value
Type	Flat rate
Flat rate	5.3%
Top rate	5.3%
Standard deduction: SingleSingle or married filing separately (federal standard deduction)	$16,100
Standard deduction: Married filing jointlyMarried filing jointly or qualifying surviving spouse (federal standard deduction)	$32,200
Standard deduction: Head of householdFederal standard deduction	$24,150

Source: Idaho State Tax Commission, 2025 Individual Income Tax Instructions (EIN00046, 03-02-2026); Table for Percentage Computation Method of Withholding (EPB00744, 07-23-2026) · retrieved 2026-10-16

Employee

Employee contributions

Idaho supplemental (bonus) withholding

Item	Value
Supplemental rate	5.3%

Source: Idaho State Tax Commission: Computing Withholding — Supplemental wages · retrieved 2026-10-16

Employer

Employer costs

Idaho state unemployment insurance (employer)

Item	Value
Taxable wage base (per employee, per year)	$58,300
New employer rate	1%
Experience-rated range: lowest	0.208%
Experience-rated range: highest	5.4%

Idaho's base new-employer rate from the U.S. Department of Labor's 2026 summary. State surcharges, if any, are not included.

Source: Idaho Department of Labor, 2026 Tax Rate Class Array · retrieved 2026-10-20

All United States tax tables 2026 →

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CalcBloc (2026). Idaho tax tables 2026. Figures from official sources, last checked 2026-10-20. https://calcbloc.com/us/tax-tables/2026/idaho

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  <caption style="text-align:left;font-weight:600;padding:4px 8px">United States tax tables 2026</caption>
  <thead><tr><th style="text-align:left;padding:4px 8px">Income</th><th style="text-align:right;padding:4px 8px">Rate</th></tr></thead>
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<p style="font:12px system-ui,sans-serif">Powered by <a href="https://calcbloc.com/us/tax-tables/2026/idaho">CalcBloc</a>. Effective 2026-01-01 to 2026-12-31.</p>

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Official sources

tax.idaho.govTable for Percentage Computation Method of Withholding (EPB00744, 07-23-2026) · retrieved 2026-10-16
tax.idaho.govWithholding tables updated for 2026 (July 31, 2026) · retrieved 2026-10-16
tax.idaho.govComputing Withholding · retrieved 2026-10-16
tax.idaho.govIncome You Must Withhold On · retrieved 2026-10-16
tax.idaho.gov2025 Idaho Individual Income Tax Instructions (EIN00046) · retrieved 2026-10-16
tax.idaho.govCommissioners' Quarterly Business Meeting minutes, April 28, 2026 (EPB00687) · retrieved 2026-10-16
irs.govRev. Proc. 2025-32 (2026 inflation adjustments) · retrieved 2026-10-16
labor.idaho.govIdaho Department of Labor, 2026 Tax Rate Class Array · retrieved 2026-10-20

How every figure is checked: methodology. All datasets: CalcBloc data.