Idaho Paycheck Calculator (2026)

Employers use the IRS Publication 15-T percentage method with the elections on your Form W-4: filing status, whether Step 2 is checked, Step 3 credits, and any Step 4 adjustments. That produces an amount to withhold each pay period before Social Security, Medicare, and any state or local tax are applied.

FICA is Social Security tax (6.2% of wages up to the annual Social Security wage base) plus Medicare tax (1.45% of all wages, with an extra 0.9% on wages above $200,000 in a year). Both are withheld on every US paycheck regardless of which state you work in, because they fund federal programs rather than a state one.

It is an estimate for planning, not a substitute for your pay stub. Your actual withholding depends on the exact elections on file with your employer, your specific pay dates, and any mid-year changes to your deductions — the calculator applies the published federal and state formulas to the numbers you enter.

A flat 5.3% for all filing statuses. A 2026 bill that would have raised the rate for tax year 2026 only was introduced but never advanced, and the Tax Commission's withholding charts revised in July 2026 still use 5.3%.

The Idaho State Tax Commission published revised 2026 withholding tables on July 31, 2026. The new charts let more of each paycheck go untaxed, which lowers withholding for most people, but they no longer subtract anything for child tax credit allowances, which raises it for people who claimed several allowances. Employers use the new charts going forward and do not adjust earlier paychecks.

Your employer picks the chart for your pay frequency and ID W-4 status and withholds 5.3% of wages above the chart's threshold, rounded to the nearest dollar. For a single employee paid $60,000 a year biweekly, that is 5.3% of ($2,307.69 − $619), or $90 per paycheck on the charts in use from July 31, 2026.

Not for pay dates from July 31, 2026. The allowances on the ID W-4 were tied to the Idaho Child Tax Credit, which has sunset, and the revised charts withhold the same amount whatever the number of allowances. Before that, each allowance lowered biweekly withholding by 5.3% of $148.77.

Status B, Married, if only one spouse works. If both spouses work, or you have more than one job, the form points you to status C, Married but withhold at Single rate, so the combined withholding is closer to what you will owe.

If the bonus is paid with your regular wages, it is added to that paycheck and withheld through the normal chart. If it is paid separately, your employer can simply withhold 5.3% of it. Federal withholding on a bonus is usually the flat 22% supplemental rate.

No. Traditional 401(k) contributions and pretax health premiums are left out of taxable wages for Idaho withholding just as they are for federal withholding, so they lower both.

No. Idaho paychecks have no city or county income tax and no employee-paid state disability or paid leave deduction, so state income tax is the only Idaho line on the pay stub.

$7.25 an hour, the same as the federal minimum wage.