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Idaho Income Tax Calculator 2026

Calculate your Idaho state income tax, federal tax, FICA, and take-home pay for 2026. Free — no signup required.

Annual Income

$

Filing Status

Take-Home Pay

$57,645

$4,804/mo

Total Taxes

$17,355

23.14% effective

Idaho State Tax

$3,503

5.80% marginal

Tax Type	Amount	Rate
Federal Income Tax	$8,114	22.00% marginal
Idaho State Tax	$3,503	5.80% marginal
Social Security (OASDI)	$4,650	6.2%
Medicare	$1,088	1.45%
Total Tax	$17,355	23.14%

Take-Home Pay by Period

Annual	$57,645
Monthly	$4,804
Bi-Weekly	$2,217
Weekly	$1,109

Idaho Tax Brackets 2026

Idaho uses a flat tax rate of 5.80% on all taxable income.

Idaho Deductions & Exemptions

Type	Single	Married Filing Jointly
Standard Deduction	$14,600	$29,200

Idaho Tax Facts

•Idaho moved to a flat 5.8% rate in 2023
•Uses federal standard deduction amounts

Frequently Asked Questions

Does Idaho have a state income tax?

Yes, Idaho has a state income tax. It uses a flat rate of 5.80%.

What is the Idaho income tax rate for 2026?

Idaho has a flat income tax rate of 5.80% for 2026.

What is the standard deduction in Idaho?

The Idaho standard deduction is $14,600 for single filers and $29,200 for married filing jointly.

Compare with Neighboring States

Montana

Flat 5.90%

Wyoming

No income tax

Utah

Flat 4.65%

Nevada

No income tax

Oregon

Up to 9.90%

Washington

No income tax

Tax rates are approximate for 2025/2026 and may not reflect recent legislative changes. This calculator is for informational purposes only — consult a tax professional for advice. Part of BriskTool's free calculator tools.