Idaho income tax and brackets 2026
Idaho taxes income at 2 rates in 2026, from 0% on the first $4,811 of a single filer's taxable income to 5.3% above $4,811. A single filer earning $75,000 in Idaho owes about $10,537 in federal and state income tax, an effective rate of 14.0%.
Income tax · 2026
See the brackets $10,537for the year
Effective rate 14.0% of income
Federal income tax$7,67072.8%
Idaho income tax$2,86727.2%
Taxable income
$58,900
Top federal rate
22%
Top Idaho rate
5.3%
Idaho tax brackets 2026
Idaho brackets · 2026
0% to 5.3%
2 brackets
Your top bracket
5.3%
Average rate
4.9%
Taxable income
$58,900
How your $2,867 adds up
0% on the first $4,811$0
5.3% on the last $54,089$2,867100.0%
Idaho brackets, single
Idaho has not published its 2026 zero tax slice; the 2025 amounts are used.
| Rate | Taxable income | Tax owed |
|---|---|---|
| 0% | $0 to $4,811 | 0% of taxable income |
| 5.3%You | Over $4,811 | $0.00 + 5.3% over $4,811 |
Idaho at a glance
- Income tax
- 0% to 5.3%
- Standard deduction
- $16,100
- State payroll taxes
- None
- Local income tax
- None
- Sales tax
- 6%
- 2026 return due
- Apr 15, 2027
How we work it out
- 1IncomeYour income for the year, less pre-tax retirement savings.
- 2DeductionThe larger of the standard deduction and your itemized total.
- 3Federal bracketsEach rate from 10% to 37% taxes only the income inside it.
- 4IdahoIdaho's own deduction and rates on the same income.
- 5Effective rateYour total tax divided by your income.
Idaho income tax questions
What are the Idaho tax brackets for 2026?
Idaho has 2 brackets for single filers, from 0% on the first $4,811 of taxable income to 5.3% on income over $4,811.
How much income tax do I pay on $75,000 in Idaho?
A single filer earning $75,000 owes about $7,670 in federal income tax and $2,867 in Idaho income tax for 2026, $10,537 in all. That is 14.0% of income.
Why is my average rate lower than my tax bracket?
Each rate taxes only the income inside its bracket. A single filer with $58,900 of Idaho taxable income is in the 5.3% bracket, but only the $54,089 above $4,811 pays 5.3%. The lower rates tax the rest, so the brackets come to $2,867, 4.9% on average.
What are the 2026 federal tax brackets?
Seven rates: 10%, 12%, 22%, 24%, 32%, 35% and 37%. The 37% rate starts above $640,600 for single filers and above $768,700 for married couples filing jointly.
Will Idaho's brackets change?
One 5.3% rate (cut from 5.695% by HB 40 in 2025, unchanged for 2026) above a 0% first slice of taxable income that is indexed to inflation each year.
What is the 2026 standard deduction?
$16,100 for single filers, $32,200 for married couples filing jointly and $24,150 for heads of household. Idaho uses the same amounts.
Sources
- IRS Revenue Procedure 2025-32: 2026 brackets and standard deduction
- Social Security Administration: 2026 contribution and benefit base
- IRS Notice 2025-67: 2026 retirement plan limits
- Idaho State Tax Commission
- Idaho State Tax Commission, Individual Income Tax Rate Schedule (2025: 0% to $4,811 single / $9,622 married, 5.3% above)
- Idaho 2025 Form 40 instructions (EIN00046): head of household uses the $9,622 figure; standard deduction follows federal; $10 Permanent Building Fund tax
- Idaho 2026 withholding tables (EPB00745, July 23, 2026): $16,100 / $32,200 zero-withholding thresholds, 5.3%
- EY Tax News, Idaho revised 2026 withholding tables: rate 5.3% unchanged
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