Idaho income tax calculator
An effective rate of 3.85%, with 5.3% on the next dollar. That is the 21st-largest state income tax bill on $75,000 of the 51 jurisdictions.
- Top rate
- 5.3%
- Rate on your last dollar
- 5.3%
- State taxable income
- $59,250
- Effective rate
- 3.85%
Idaho's income tax is graduated: 2 brackets running from 0% to 5.3%, the 20th-highest top rate of the 51 jurisdictions. A single filer's first $4,811 of taxable income is taxed at 0%, and everything above it at 5.3% — on top of whatever the state lets you deduct first. Because that top bracket starts so low, Idaho behaves like a flat 5.3% tax for most full-time earners — the graduated part only shapes the first few thousand dollars. Joint filers get exactly double the bracket widths at every rate, so a married couple pays what two single filers on half the income each would pay. Idaho publishes no head-of-household schedule, so heads of household are taxed on the single-filer brackets here. A single filer subtracts a $15,750 standard deduction before the rates are applied.
Idaho 2025 tax brackets
2 distinct schedules. Rates apply to state taxable income — income after the deductions in the next table, not your gross salary.
Single · Head of household
| State taxable income | Rate |
|---|---|
| $0 – $4,811 | 0% |
| $4,811 and above | 5.3% |
Married filing jointly
| State taxable income | Rate |
|---|---|
| $0 – $9,622 | 0% |
| $9,622 and above | 5.3% |
Idaho deductions and exemptions
| Amount | Single | Married filing jointly | Head of household |
|---|---|---|---|
| Standard deduction | $15,750 | $31,500 | $23,625 |
Work out your own Idaho tax
Already set to Idaho and the 2026 federal schedule. Change the income, the filing status or the year and everything below updates.
Wages, interest, business income, etc. Exclude pre-tax 401(k) and HSA contributions.
Adds state income tax using that state's own rate schedule and standard deduction. Pick the last option to type a flat rate instead.
- Effective federal tax rate
- 10.23%Federal tax as a share of the income you entered.
- Marginal bracket
- 22%The rate on your next dollar of taxable income.
- State income tax
- $2,885.27From the selected state's rate schedule, or your flat rate.
- Federal + state income tax
- $10,555.27
- Income after income tax
- $64,444.73
- Taxable income
- $58,900.00
- Deduction applied
- $16,100.00
Assumptions
- Ordinary-income rate schedules only; no credits, AMT, capital-gains rates, QBI deduction or the 2025–2028 senior deduction.
- Standard deduction (plus additional amounts for 65+/blind) or your itemized figure, whichever is larger; no dependent-filer limitation.
- Married filing separately uses half the joint federal thresholds, per the IRS schedule, and the state's single-filer schedule.
- State tax uses each state's published rate schedule, standard deduction and personal exemption for the tax year shown with the results; the source URL and year for the state you pick are printed above the results, along with the simplifications made for that state.
- State figures exclude county, municipal and city income taxes, itemized deductions, retirement and capital-gains exclusions, and credits that phase out. Unlisted states fall back to the flat rate you enter.
| Taxable income | Rate | Your income in this bracket | Tax |
|---|---|---|---|
| $0 – $12,400 | 10% | $12,400 | $1,240 |
| $12,400 – $50,400 | 12% | $38,000 | $4,560 |
| $50,400 – $105,700 | 22% | $8,500 | $1,870 |
| $105,700 – $201,775 | 24% | $0 | $0 |
| $201,775 – $256,225 | 32% | $0 | $0 |
| $256,225 – $640,600 | 35% | $0 | $0 |
| Over $640,600 | 37% | $0 | $0 |
Idaho income tax at other incomes
| Gross income | Single | Effective | Married jointly | Effective |
|---|---|---|---|---|
| $30,000 | $500 | 1.67% | $0 | 0.00% |
| $50,000 | $1,560 | 3.12% | $471 | 0.94% |
| $75,000 | $2,885 | 3.85% | $1,796 | 2.39% |
| $100,000 | $4,210 | 4.21% | $3,121 | 3.12% |
| $150,000 | $6,860 | 4.57% | $5,771 | 3.85% |
| $250,000 | $12,160 | 4.86% | $11,071 | 4.43% |
State income tax only, filing status as shown, after Idaho’s own deductions. Federal tax is on top of every figure here.
How the neighbours compare
Idaho borders 6 other jurisdictions. Moving across a state line is the one way most people can actually change which of these schedules applies to them, so here is the same income run through each of them.
| State | Rate structure | $50,000 | $75,000 | $150,000 |
|---|---|---|---|---|
| Idaho | 0% – 5.3% | $1,560 | $2,885 | $6,860 |
| Montana | 4.7% – 5.9% | $1,768 | $3,243 | $7,668 |
| Nevada | No income tax | $0 | $0 | $0 |
| Oregon | 4.75% – 9.9% | $3,561 | $5,748 | $12,566 |
| Utah | Flat 4.5% | $1,718 | $3,168 | $6,750 |
| Washington | No income tax | $0 | $0 | $0 |
| Wyoming | No income tax | $0 | $0 | $0 |
State income tax on a single filer, after each state’s own deductions. Federal tax is identical wherever you live, so the difference between these rows is the whole difference.
What these Idaho figures leave out
Recorded against Idaho in the data rather than glossed over, because they change real bills.
- Idaho starts from federal taxable income, so the deduction applied is the federal one. The standard deduction is the federal amount this state adopts: $15,750 single, $31,500 married filing jointly, $23,625 head of household for 2025 (IRS Rev. Proc. 2024-40, as amended by Rev. Proc. 2025-32 §3.01).
- Idaho publishes only a single and a married schedule. Head-of-household filers are computed on the single schedule here.
- Idaho had not published 2026 bracket thresholds when this was compiled; the 5.3% rate has applied since 1 January 2025.
- Idaho does not publish a head-of-household rate schedule, so head-of-household filers are computed on the single-filer schedule here.
Frequently asked questions
▸Does Idaho have a state income tax?
Yes. Idaho has a graduated income tax with 2 brackets, from 0% up to 5.3%.
▸How much state income tax would I pay on $75,000 in Idaho?
About $2,885 for a single filer — an effective rate of 3.85%. That is $75,000 less $15,750 of state deductions, leaving $59,250 of taxable income taxed at 5.3% at the margin.
▸What is the top income tax rate in Idaho?
5.3%, the 20th-highest among the 50 states and DC. It applies to a single filer's taxable income above $4,811.
▸What is the Idaho standard deduction?
$15,750 for a single filer and $31,500 for a couple filing jointly, for tax year 2025.
▸Are these Idaho figures up to date?
They are the tax year 2025 figures, taken from Idaho State Tax Commission — Individual income tax rate schedule and last checked on 2026-09-09. Idaho had not published a 2026 schedule when this was compiled, so the 2025 one is shown rather than an estimate.
Source
Idaho State Tax Commission — Individual income tax rate schedule
Tax year 2025 figures — Idaho had not published a 2026 schedule when this page was compiled, so the 2025 one is used rather than an estimate. Last checked against the source on 2026-09-09.
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Idaho income tax calculator: Idaho income tax on $75,000, filing single is $2,885. Source: https://www.calculateitnow.dev/idaho-income-tax-calculator