Idaho withholds a flat 5.3% on wages above a threshold that matches the standard deduction: $16,100 a year for single filers and $32,200 for married filers. In July 2026 Idaho revised its tables because the state child tax credit ended, so ID W-4 allowances no longer lower your withholding.
2026 tax year, verified Sources
Estimated take-home this week
$924.04
from $1,153.85 gross. You keep 80%.
2026 tax year, rules last verified November 12, 2026. An estimate, not tax advice. How we calculate
Each extra dollar you earn loses about 25¢ to taxes, but across all your pay the average is 20¢. A raise never lowers your take-home: only the dollars above a bracket line pay the higher rate.
| Annual pay | Effective | Marginal |
|---|---|---|
| $15,000 | 7.6% | 7.6% |
| $30,000 | 14.8% | 24.9% |
| $45,000 | 18.2% | 24.9% |
| $60,000 | 19.9% | 24.9% |
| $75,000 | 22.0% | 34.9% |
| $90,000 | 24.2% | 34.9% |
| $105,000 | 25.7% | 34.9% |
| $120,000 | 26.9% | 34.9% |
| $135,000 | 28.0% | 37.0% |
| $150,000 | 28.9% | 37.0% |
Your take-home changes during the year as wage caps and thresholds are reached.
Same pay, W-4 and benefits; each state’s default withholding answers, no local taxes. Take-home per week:
Idaho’s percentage method is simple: your employer takes the threshold for your pay period and status, and withholds 5.3% of anything above it, rounded to the nearest whole dollar.
Until the July 2026 revision, each ID W-4 allowance also cut $3,868.00 a year from the wages being taxed, and the thresholds were lower ($15,000 single, $30,000 married). Idaho’s $205-per-child tax credit expired after 2025, so allowances are now worth $0.
Heads of household are withheld at the single rate. Married people whose spouse also works can choose “Married, but withhold at the Single rate”.
| Pay period | Single / head of household | Married | Rate above threshold |
|---|---|---|---|
| Weekly | $310 | $619 | 5.3% |
| Every two weeks | $619 | $1,238 | 5.3% |
| Twice a month | $671 | $1,342 | 5.3% |
| Monthly | $1,342 | $2,683 | 5.3% |
| Annual | $16,100 | $32,200 | 5.3% |
Used for paychecks from August 1, 2026. Earlier 2026 paychecks used the 04-28-2025 tables.
Single filer, standard W-4, no benefits, paid weekly, default ID W-4 answers. Idaho takes $37.00 of this check (3.7% of gross).
| Line | Per week | Per year |
|---|---|---|
| Gross pay | $1,000.00 | $52,000.00 |
| Federal income tax | −$78.08 | −$4,060.16 |
| Social Security | −$62.00 | −$3,224.00 |
| Medicare | −$14.50 | −$754.00 |
| Idaho income tax | −$37.00 | −$1,954.00 |
| Take-home pay | $808.42 | $42,007.84 |
Single filer, standard W-4, no benefits, no local tax. Per-week amounts; annual totals account for the Social Security wage cap.
| Salary | Gross / week | Federal | FICA | Idaho | Take-home / week | Per year |
|---|---|---|---|---|---|---|
| $30,000 | $576.92 | $27.31 | $44.14 | $14.00 | $491.47 | $25,526 |
| $40,000 | $769.23 | $50.38 | $58.84 | $24.00 | $636.01 | $33,013 |
| $50,000 | $961.54 | $73.46 | $73.56 | $35.00 | $779.52 | $40,505 |
| $60,000 | $1,153.85 | $96.54 | $88.27 | $45.00 | $924.04 | $48,020 |
| $75,000 | $1,442.31 | $147.50 | $110.33 | $60.00 | $1,124.48 | $58,443 |
| $100,000 | $1,923.08 | $253.27 | $147.11 | $85.00 | $1,437.70 | $74,700 |
| $150,000 | $2,884.62 | $475.65 | $220.68 | $136.00 | $2,052.29 | $106,659 |
Married filing jointly with two children on $100,000: $1,644.67 a week ($85,703 a year).
None. No Idaho city or county taxes wages.
Idaho has no employee payroll programs. Unemployment insurance is paid by employers, and there is no state disability or paid leave deduction.
Idaho has no reciprocity agreements. Washington and Oregon residents who work in Idaho owe Idaho tax on their Idaho wages. Idaho residents working in another state still owe Idaho tax, with a credit for tax paid to the other state.
$37.00 if you are single (5.3% of the amount over $310), or $20.00 if married (over $619).
If you claimed ID W-4 allowances for children, each one used to shield $74.38 of weekly pay. Idaho’s child tax credit ended, so the new tables give allowances no value, and withholding rose for people who claimed them. Everyone else saw a small drop, because the thresholds went up.
Employers can withhold a flat 5.3% on bonuses paid separately, so a $1,000 bonus has $53.00 withheld. They can also add it to your regular pay and use the tables.
No. Employers simply switched tables. You only need a new form if you want to change your status or add an extra dollar amount.
Idaho rules for the 2026 tax year, last verified November 12, 2026. Federal sources are on the methodology page.
Every state page has its own withholding formula, local taxes, payroll programs and worked examples. Compare all states.