How Idaho Taxes Your Paycheck
Idaho uses a flat income tax rate of 5.3%. Every dollar of taxable income above the standard deduction is taxed at the same rate.
Idaho moved from a graduated tax to a flat rate in 2023. The rate has stepped down each year since — 5.695% in 2025, then 5.30% in 2026 — making it one of the simpler and increasingly competitive state tax codes in the West.
Idaho Job Market Context
Agriculture (potatoes), tech (Micron HQ in Boise), and outdoor recreation drive the economy; rapid growth from California migration.
Top Cities in Idaho
The largest population centers in Idaho:
- Boise — 237,000 residents
- Meridian — 134,000 residents
- Nampa — 113,000 residents
How Idaho Compares to Neighboring States
Single-filer take-home on a $75,000 annual salary in 2026, federal + state income tax + FICA only:
| State | Take-Home | vs. Idaho |
|---|---|---|
| Idaho (here) | $58,413 | — |
| Washington | $61,593 | +$3,180 |
| Oregon | $55,584 | -$2,829 |
| Nevada | $61,593 | +$3,180 |
| Utah | $58,180 | -$233 |
| Wyoming | $61,593 | +$3,180 |
Take-home reflects single filer, no pre-tax deductions; SDI/PFML and local taxes excluded for an apples-to-apples comparison.
Frequently Asked Questions
What's the Idaho state income tax rate?
Idaho has a flat income tax rate of 5.3% for 2026. Whether you earn $40,000 or $200,000, your state tax rate is the same — applied to your taxable income after the standard deduction.
How much is taken out of my paycheck in Idaho?
For a single filer earning $75,000 in Idaho (2026), expect roughly $7,670 in federal income tax, $5,738 in FICA, and $3,180 in Idaho state tax — leaving about $58,413 take-home (22.1% effective tax rate). SDI/PFML and local taxes (if any) come out of that as well.
Is the Idaho median household income enough to live comfortably?
The 2023 ACS reported a Idaho median household income of about $81,200. Whether that's "comfortable" depends heavily on city — Boise cost of living can differ substantially from rural areas. Use the calculator above to model your specific salary and deductions.
How does this Idaho paycheck calculator work?
We calculate your annualized gross pay based on the pay frequency you select, then apply the 2025 or 2026 IRS percentage method for federal income tax, the Idaho state tax schedule (if any), Social Security, and Medicare. Pre-tax deductions like 401(k) and Section 125 health premiums reduce your taxable base before withholding is computed. You can switch between salary and hourly modes; hourly mode applies time-and-a-half to hours over 40/week prorated by pay period.