Idaho paycheck calculator, 2026
Idaho withholds using a two-step schedule with a large zero-rate band at the bottom, which means lower salaries pay no state tax at all and everything above the threshold is taxed at essentially one rate. In practice Idaho behaves like a flat tax with a generous exemption rather than a graduated one.
Idaho withholding rates, 2026
| Taxable income over | Base tax | Rate on excess |
|---|---|---|
| $0.00 | $0.00 | 0% |
| $15,000.00 | $0.00 | 5.3% |
| Taxable income over | Base tax | Rate on excess |
|---|---|---|
| $0.00 | $0.00 | 0% |
| $30,000.00 | $0.00 | 5.3% |
Bonuses and supplemental pay
Idaho withholds supplemental wages — bonuses, commission, severance — at a flat 5.3%, separately from your regular salary. A bonus can therefore have a different amount withheld than the same money paid as salary, which is usually why a bonus arrives smaller than expected.
What the Idaho withholding form asks for
| Field | What it does | Where it appears |
|---|---|---|
| ID W-4 allowances | Number of Idaho child tax credit withholding allowances claimed on Form ID W-4. | ID Form W-4, line 5 |
Take-home pay in Idaho by salary
Single filer, paid every two weeks, no pre-tax deductions, 2026 rates. Change any of those in the calculator.
| Salary | Take-home (year) | Per paycheck | Total tax rate |
|---|---|---|---|
| $35,000 | $29,236.48 | $1,124.48 | 16.5% |
| $40,000 | $32,994.00 | $1,269.00 | 17.5% |
| $45,000 | $36,751.26 | $1,413.51 | 18.3% |
| $50,000 | $40,509.30 | $1,558.05 | 19.0% |
| $55,000 | $44,240.56 | $1,701.56 | 19.6% |
| $60,000 | $47,997.82 | $1,846.07 | 20.0% |
| $65,000 | $51,755.60 | $1,990.60 | 20.4% |
| $70,000 | $55,163.16 | $2,121.66 | 21.2% |
| $75,000 | $58,420.44 | $2,246.94 | 22.1% |
| $80,000 | $61,651.72 | $2,371.22 | 22.9% |
| $85,000 | $64,909.52 | $2,496.52 | 23.6% |
| $90,000 | $68,167.06 | $2,621.81 | 24.3% |
| $95,000 | $71,424.60 | $2,747.10 | 24.8% |
| $100,000 | $74,681.88 | $2,872.38 | 25.3% |
| $110,000 | $81,170.96 | $3,121.96 | 26.2% |
| $120,000 | $87,686.04 | $3,372.54 | 26.9% |
| $130,000 | $94,037.06 | $3,616.81 | 27.7% |
| $140,000 | $100,325.94 | $3,858.69 | 28.3% |
| $150,000 | $106,641.08 | $4,101.58 | 28.9% |
| $200,000 | $138,164.00 | $5,314.00 | 30.9% |
Notes and caveats
- Idaho's official computing page permits either aggregating supplemental wages or withholding 5.3% from a separately issued supplemental payment.
- The percentage and annualized-wage methods require the final per-period amount to be rounded to the nearest whole dollar.
Sources
Every figure on this page is transcribed from a published source and carries the date it was read. Where two sources disagree, the disagreement is recorded rather than resolved silently.
- NFC-25-1747930413, Idaho State Income Tax Withholding (Effective Pay Period 10, 2025) — read 2026-07-19 · cross-checked against Idaho State Tax Commission, current Computing Withholding guidance and EPB00744 (04-28-2025)
- perAllowance — NFC-25-1747930413, Idaho State Income Tax Withholding , Withholding Formula, step 5 · read 2026-07-19
- rates — NFC-25-1747930413, Idaho State Income Tax Withholding , Withholding Formula, step 6 · read 2026-07-19
This is an estimate of payroll withholding, not tax advice, and not a prediction of your final tax bill. Withholding is what your employer sends in during the year; what you actually owe is settled when you file.