Idaho after-tax breakdown
Your Idaho salary after taxes at every level
Idaho uses a flat 5.3% rate applied to income above a small threshold ($4,811 single / $9,622 married), after the federal standard deduction ($16,100 single / $32,200 married). The flat structure makes withholding predictable. Federal tax and 7.65% FICA stack on top.
| Gross salary | Federal tax | FICA | ID tax | Take-home | Monthly |
|---|---|---|---|---|---|
| $40,000 | $2,620 | $3,060 | $1,012 | $33,308 | $2,776 |
| $50,000 | $3,820 | $3,825 | $1,542 | $40,813 | $3,401 |
| $65,000 | $5,620 | $4,973 | $2,337 | $52,070 | $4,339 |
| $75,000 | $7,670 | $5,738 | $2,867 | $58,726 | $4,894 |
| $100,000 | $13,170 | $7,650 | $4,192 | $74,988 | $6,249 |
Step-by-step: how $75,000 is taxed in Idaho
1. Standard deduction: $75,000 − $16,100 = $58,900 taxable income.
2. Idaho state tax: 5.3% on ($58,900 − $4,811 threshold) = 5.3% × $54,089 = $2,867.
3. Federal income tax: $58,900 taxable → $7,670.
4. FICA: 6.2% SS + 1.45% Medicare on $75,000 = $5,738.
5. Take-home: $75,000 − $7,670 − $5,738 − $2,867 = $58,726 — $4,894/month or $2,259 bi-weekly.
Beyond income tax: Idaho's total burden
Idaho has a 6% state sales tax with no local add-ons, making it one of the simpler sales tax states. Groceries are taxable at the full 6%, but the state offsets this with a $120-per-person grocery credit ($140 for 65+). Effective property taxes run about 0.6%, among the lowest nationally. There are no local income taxes. Boise's rapidly growing cost of living — especially housing — is now a bigger factor than taxes for many Idaho workers.
Compare with the Idaho salary calculator or run the same salary through Montana · Washington · Oregon.
Questions
Idaho salary after taxes FAQ
How much of my salary do I keep after taxes in Idaho?
You keep about 76% to 83% of gross pay in Idaho. A single filer earning $75,000 keeps roughly $58,726 after federal tax, FICA and Idaho state tax — about 78.3% of gross.
What is Idaho's effective tax rate on $75,000?
The combined effective rate on $75,000 in Idaho is about 21.7%: 10.2% federal income tax, 7.65% FICA, and 3.8% state tax. Idaho's 5.3% flat rate applies only above a small threshold ($4,811 single) after the federal standard deduction.
When did Idaho switch to a flat tax?
Idaho moved to a flat 5.8% rate in 2023, replacing its old seven-bracket system. The rate was further cut to 5.3% for 2025 and 2026 under House Bill 292. This makes Idaho one of the growing number of states using a single-rate income tax.
Does Idaho tax Social Security or retirement income?
Idaho exempts Social Security benefits from state income tax. Other retirement income — pensions, 401(k) withdrawals, IRA distributions — is taxable at the flat 5.3% rate. Idaho does not offer a separate retirement income deduction.
What is the Idaho sales tax rate?
Idaho has a 6% state sales tax with no local additions, making it one of the more straightforward sales tax states. Groceries are fully taxable at the 6% rate, which increases everyday costs but keeps the overall sales tax structure simple.
Are there local income taxes in Idaho?
No. Idaho does not permit cities or counties to impose local income taxes. The only income tax is the state-level flat 5.3%. Boise, Meridian, and other cities rely on property and sales taxes for local revenue.
How does Idaho compare to Montana for take-home pay?
Idaho and Montana produce nearly identical take-home at $75,000 — about $58,726 in Idaho versus $58,716 in Montana. Idaho uses a flat 5.3% while Montana uses two rates (4.7%/5.65%). Montana has no sales tax, which gives it an edge on everyday purchases.
Does Idaho have a grocery tax?
Yes. Idaho is one of the few states that charges its full 6% sales tax on groceries. To offset this, Idaho provides an annual grocery tax credit of $120 per person ($140 for those 65+), which is claimed on the state income tax return.
- Sources: Idaho State Tax Commission (flat 5.3%, H.B. 292) · Tax Foundation 2026 state income tax data · IRS Rev. Proc. 2025-32 · SSA 2026 wage base $184,500.
- Last updated July 2026 · Tax year 2026
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