Idaho income tax in 2026
Idaho has a flat 5.3% income tax on taxable income above $4,938. Traditional 401(k) contributions lower your Idaho taxable income as well as your federal taxable income. Idaho then subtracts its own standard deduction of $16,100 for single filers ($32,200 married filing jointly).
| Taxable income (single) | Rate |
|---|---|
| $0 – $4,938 | 0% |
| Over $4,938 | 5.3% |
| Taxable income (married filing jointly) | Rate |
|---|---|
| $0 – $9,876 | 0% |
| Over $9,876 | 5.3% |
Idaho rules and notes
Some 2026 Idaho figures are projections or awaiting official publication; the notes below explain which.
- Flat 5.3% rate (HB 40 of 2025, effective from 2025); 2026 withholding tables confirm 5.3%.
- Idaho taxes only taxable income above an inflation-indexed zero-rate amount ($2,500 single / $5,000 joint in 1998 dollars, Idaho Code 63-3024). 2025 amounts were $4,811 / $9,622. The 2026 amounts here ($4,938 / $9,876) are computed with the statutory CPI-U formula (2025 CPI-U avg 321.943 / 1998 avg 163.0) and had not yet been published on an Idaho form. Head of household and qualifying surviving spouse use the joint amount; MFS uses the single amount.
- Idaho uses the federal standard deduction ($16,100 single/MFS, $24,150 HOH, $32,200 joint for 2026) and conforms to the IRC as of January 1, 2026 (HB 559 of 2026), including the federal Schedule 1-A deductions: residents subtract the federal qualified tips, overtime, car-loan interest and $6,000 senior deduction amounts (Idaho Worksheet 1-A). The additional standard deduction for 65+/blind also follows federal amounts ($2,050 unmarried, $1,650 married).
- The $205 Idaho Child Tax Credit expired after tax year 2025 (Idaho Code 63-3029L).
- No personal exemptions.
- Most filers who are required to file an Idaho return also pay a flat $10 Permanent Building Fund tax (not owed if receiving Idaho public assistance or below the filing threshold).
Idaho take-home pay by salary
Single filer, paid every two weeks, 2026 rules, standard deduction and no pre-tax deductions; includes Idaho income tax but not local taxes.
| Salary | Federal income tax | Social Security + Medicare | Idaho income tax | Take-home per year | Per bi-weekly paycheck |
|---|---|---|---|---|---|
| $40,000 | $2,620 | $3,060 | $1,005 | $33,315 | $1,281.35 |
| $50,000 | $3,820 | $3,825 | $1,535 | $40,820 | $1,570.00 |
| $60,000 | $5,020 | $4,590 | $2,065 | $48,325 | $1,858.65 |
| $75,000 | $7,670 | $5,738 | $2,860 | $58,733 | $2,258.94 |
| $100,000 | $13,170 | $7,650 | $4,185 | $74,995 | $2,884.42 |
| $150,000 | $24,734 | $11,475 | $6,835 | $106,956 | $4,113.69 |
Hourly wages after taxes in Idaho
Full-time (40 hours a week, 2,080 hours a year), no overtime, single filer:
| Hourly wage | Annual pay | Weekly take-home | Bi-weekly take-home | Take-home per year | Take-home per hour |
|---|---|---|---|---|---|
| $15.00 | $31,200 | $513.67 | $1,027.33 | $26,711 | $12.84 |
| $20.00 | $41,600 | $663.77 | $1,327.53 | $34,516 | $16.59 |
| $25.00 | $52,000 | $813.87 | $1,627.73 | $42,321 | $20.35 |
| $30.00 | $62,400 | $963.97 | $1,927.93 | $50,126 | $24.10 |
Idaho vs. neighboring states
Take-home pay on a $75,000 salary (single, bi-weekly), with the difference from Idaho. Federal taxes are identical in every state, so the gaps come from state income tax. On a $75,000 salary, Idaho ranks #32 of 51 (50 states and DC) for take-home pay. Nationally, take-home pay on $75,000 ranges from $56,538 in Oregon to $61,593 in states without a wage tax; the median is $59,005.
| State | State income tax | Take-home per year | Per bi-weekly paycheck | vs. Idaho |
|---|---|---|---|---|
| Idaho | $2,860 | $58,733 | $2,258.94 | — |
| Nevada | None | $61,593 | $2,368.94 | +$2,860 |
| Washington | None | $61,593 | $2,368.94 | +$2,860 |
| Wyoming | None | $61,593 | $2,368.94 | +$2,860 |
| Montana | $2,877 | $58,716 | $2,258.30 | −$17 |
| Utah | $3,110 | $58,483 | $2,249.34 | −$250 |
| Oregon | $5,055 | $56,538 | $2,174.53 | −$2,195 |
Neighboring state calculators: Nevada, Washington, Wyoming, Montana, Utah, Oregon. See all 50 states and DC on the national paycheck calculator.
How your Idaho paycheck is calculated
- Gross pay for the year is your salary, or your hourly wage × hours × 52 plus overtime at 1.5×.
- Pre-tax deductions such as a traditional 401(k), health premiums and HSA contributions are subtracted before federal income tax.
- Federal income tax uses the 2026 brackets, your filing status’s standard deduction ($16,100 single) and credits for children and other dependents.
- Social Security and Medicare take 6.2% (up to $184,500 of wages) and 1.45%.
- Idaho income tax is figured on the annual amount using the rules above, then divided across your paychecks.
We divide the annual totals by your number of paychecks, which is how a correctly completed 2026 Form W-4 is designed to withhold. Your employer’s withholding tables may differ by a few dollars per check. For your full-year tax bill, use the income tax calculator.
Frequently asked questions
How much is $75,000 a year after taxes in Idaho?
A single filer earning $75,000 in Idaho takes home about $58,733 a year in 2026, or $2,258.94 per bi-weekly paycheck. That is after $7,670 of federal income tax, $5,738 of Social Security and Medicare and $2,860 of Idaho income tax. Pre-tax 401(k) or health deductions would lower your taxes but also your take-home pay.
Does Idaho have a state income tax?
Yes. Idaho has a flat 5.3% income tax on taxable income above $4,938 in 2026. On a $75,000 salary, that works out to about $2,860 a year, or $110.00 per bi-weekly paycheck, an effective state rate of 3.81% of gross pay. Employers withhold it from each paycheck along with federal taxes.
How much is $20 an hour after taxes in Idaho?
Full time (40 hours a week), $20 an hour is $41,600 a year. After 2026 federal income tax, Social Security and Medicare and Idaho income tax, a single filer in Idaho takes home about $34,516 a year, or $1,327.53 per bi-weekly paycheck, about $16.59 per hour worked.
How does take-home pay in Idaho compare with nearby states?
On a $75,000 salary (single, bi-weekly), take-home pay is $58,733 a year in Idaho. In neighboring states it ranges from $56,538 to $61,593; Nevada (the highest nearby) is $2,860 higher. Federal taxes are the same everywhere, so the gap comes entirely from state income tax.
How much federal tax comes out of each paycheck on a $75,000 salary?
Federal taxes don’t depend on the state. For a single filer paid every two weeks on $75,000, about $295.00 of federal income tax, $178.85 of Social Security (6.2%) and $41.83 of Medicare (1.45%) come out of each 2026 paycheck, based on the $16,100 standard deduction. Children, pre-tax deductions and W-4 choices change the federal amount.