Idaho income tax at a glance
Idaho taxes income above a small zero bracket at a flat 5.3% (cut from 5.695% by HB 40, retroactive to 2025). It starts from federal taxable income, so the federal standard deduction applies. The zero-bracket amount shown is the latest published (2025) figure.
| Tax structure | Flat 5.3% |
| Figures for tax year | 2026 |
| Starting point | Federal taxable income |
| Standard deduction (single / joint) | $16,100 / $32,200 |
| Tax on $75,000 (single) | $2,867 (3.82%) |
| Rank at $75,000 | 20th highest of 42 |
| Local income taxes | None |
| State sales tax | 6% |
How Idaho calculates your income tax
Idaho starts from your federal taxable income, so the federal standard deduction ($16,100 single, $32,200 joint) is built in.
Taxable income × 5.3% = Idaho income tax
Idaho income tax rate (2026)
Married couples filing jointly get their own, wider brackets. Rates apply only to the slice of taxable income inside each bracket.
Single filers
| Rate | Taxable income | Tax owed |
|---|---|---|
| 0% | $0 – $4,811 | 0% of taxable income |
| 5.3% | Over $4,811 | $0 + 5.3% over $4,811 |
Married filing jointly
| Rate | Taxable income | Tax owed |
|---|---|---|
| 0% | $0 – $9,622 | 0% of taxable income |
| 5.3% | Over $9,622 | $0 + 5.3% over $9,622 |
Heads of household use the married-filing-jointly brackets in Idaho.
Idaho standard deduction and exemptions
| Filing status | Standard deduction | Personal exemption | Per dependent |
|---|---|---|---|
| Single | $16,100 | — | — |
| Married filing jointly | $32,200 | — | — |
| Head of household | $24,150 | — | — |
Amounts before any income-based phase-outs. Because Idaho starts from federal taxable income, these equal the 2026 federal standard deduction.
Idaho income tax on $50,000, $75,000 and $100,000
Estimated 2026 tax for W-2 wages with the standard deduction, no children and no pre-tax deductions. Change any of these in the calculator above.
| Wages | Filing status | ID tax | Effective | Federal tax | FICA | Take-home | Monthly |
|---|---|---|---|---|---|---|---|
| $50,000 | Single | $1,542 | 3.08% | $3,820 | $3,825 | $40,813 | $3,401 |
| $50,000 | Married jointly | $433 | 0.87% | $1,780 | $3,825 | $43,962 | $3,663 |
| $75,000 | Single | $2,867 | 3.82% | $7,670 | $5,738 | $58,726 | $4,894 |
| $75,000 | Married jointly | $1,758 | 2.34% | $4,640 | $5,738 | $62,864 | $5,239 |
| $100,000 | Single | $4,192 | 4.19% | $13,170 | $7,650 | $74,988 | $6,249 |
| $100,000 | Married jointly | $3,083 | 3.08% | $7,640 | $7,650 | $81,627 | $6,802 |
Step by step: $75,000 single filer in Idaho
- Gross wages: $75,000
- Standard deduction: −$16,100
- Idaho taxable income: $58,900
- 0% on $4,811 = $0.00
- 5.3% on $54,089 = $2,866.72
- Idaho income tax: $2,867 — 3.82% of gross pay, with a marginal state rate of 5.3%.
- With $7,670 of federal income tax and $5,738 of FICA, total tax is $16,274 and take-home pay is about $58,726 ($2,259 every two weeks).
Local income taxes in Idaho
No local income taxes.
Sales tax and other Idaho taxes
The Idaho state sales tax rate is 6%, and local governments may add their own rates on top. Spending $30,000 a year on taxable goods would cost roughly $1,800 in state sales tax alone.
Compare Idaho with neighboring states
State income tax on $75,000 of wages for a single filer in Idaho and its neighbors. Moving to Washington would cut state income tax on this salary by about $2,867 a year, while Oregon would cost about $2,195 more.
| State | Type | Top rate | Tax on $75k | vs ID |
|---|---|---|---|---|
| Idaho | Flat | 5.3% | $2,867 | — |
| Washington | No income tax | — | $0 | −$2,867 |
| Oregon | Graduated | 9.9% | $5,062 | +$2,195 |
| Nevada | No income tax | — | $0 | −$2,867 |
| Utah | Flat | 4.45% | $3,110 | +$243 |
| Wyoming | No income tax | — | $0 | −$2,867 |
| Montana | Graduated | 5.65% | $2,877 | +$10 |
If you live in one of these states and work in another, you generally file a non-resident return in the work state and claim a credit at home for the tax paid.
How to lower your Idaho income tax
- Pre-tax retirement savings. Putting $10,000 into a traditional 401(k) on a $75,000 salary cuts Idaho tax by about $530 on top of the federal savings.
- Claim state credits. Check the Idaho return for earned-income, child, education and renter or property-tax credits that this estimate doesn’t include.
- Watch residency and work location. Days worked in another state and the date you move in or out change how much each state can tax.
- Time large income. Bonuses, stock sales and Roth conversions all land on your state return too.
See all states side by side in the state income tax calculator, or check the federal side with the federal income tax calculator and your per-check withholding in the paycheck calculator.
Sources and updates
Rates, brackets and deductions are for tax year 2026. Source: official Idaho tax agency page, cross-checked with the Tax Foundation’s 2026 state income tax tables and 2026 state legislation. Data last reviewed November 4, 2026.
Idaho income tax FAQ
What is the Idaho state income tax rate?
Idaho has a flat 5.3% rate for 2026 on income above a zero-rate band. A single filer earning $75,000 pays an effective rate of about 3.82%.
How much Idaho income tax do I pay on $75,000?
About $2,867 for a single filer and $1,758 for a married couple filing jointly, using the standard deduction. Including federal income tax and FICA, a single filer takes home about $58,726 a year.
What is the Idaho standard deduction?
Does Idaho have local income taxes?
No local income taxes.
Is Idaho a high-tax state?
On a $75,000 salary Idaho ranks 20 of the 42 jurisdictions that tax wages (1 = highest), in the middle of the pack. Among its neighbors, Washington is cheapest at $0.