Idaho income tax calculator
Idaho has rates from 5.3% to 5.3% for 2026. On $100,000 of pay a single filer keeps $74,994, after $13,170 of federal income tax, $7,650 of Social Security and Medicare, and $4,186 to Idaho.
Your year
Idaho’s 2026 schedule, deductions and exemptions, with the federal brackets, payroll tax and the child tax credit.
I’m paid a year, file , live in Idaho and put into a 401(k).
kept for 2026, about $6,250 a month. Tax takes 25% of your pay.
| Federal income tax | $13,170 |
| Social Security | $6,200 |
| Medicare | $1,450 |
| Idaho income tax | $4,186 |
| All of it | $25,006 |
Of your next $1,000 of pay, $350 goes to tax: the 22% federal bracket, payroll tax and the state’s 5.3%. See what would lower it.
Take-home pay in Idaho
What a year’s pay keeps after every tax, with no 401(k), kids or other income.
| Pay | State tax | Kept, single | Kept, jointly |
|---|---|---|---|
| $50,000 | $1,536 | $40,819 | $43,973 |
| $75,000 | $2,861 | $58,732 | $62,876 |
| $100,000 | $4,186 | $74,994 | $81,638 |
| $150,000 | $6,836 | $106,955 | $117,463 |
| $250,000 | $12,136 | $171,046 | $186,446 |
Idaho tax brackets for 2026
Each rate applies only to the income inside its bracket, after Idaho’s own deductions and exemptions.
| Rate | Single, from | Jointly, from |
|---|---|---|
| 0% | $0 | $0 |
| 5.3% | $4,920 | $9,840 |
Questions people ask
What is the Idaho income tax rate for 2026?
Idaho has rates from 5.3% to 5.3%, the top rate from $4,920 of taxable income single. On $100,000 of pay a single filer's state tax is $4,186, 4.2% of pay.
How much is take-home pay on $100,000 in Idaho?
$74,994 for a single filer in 2026, about $6,250 a month: $13,170 of federal income tax, $7,650 of Social Security and Medicare, and $4,186 to Idaho.
How does Idaho compare with a state with no income tax?
On $100,000 single, $4,186 a year less is kept than in Texas or Florida, where the same pay keeps $79,180.
Does a 401(k) lower Idaho income tax?
Pay put into a traditional 401(k) comes off federal income tax and Idaho's. It doesn't lower Social Security or Medicare.
Checked on October 29, 2026 against Rev. Proc. 2025-32, SSA 2026 fact sheet and Idaho's published 2026 schedule. An estimate for your records, not tax advice.
The federal side: the 2026 brackets. From your own pay stub, with what is left to pay: the tax forecast.
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Put more back in your pocket.
Reimburse works out your whole year from a pay stub and last year's return, and every move that would lower it.