Idaho Paycheck Calculator 2026

Idaho withholding in 2026: 5.3% over a threshold

Idaho withholding is 5.3% of the wages in each paycheck above a threshold set by pay frequency and status, rounded to the nearest whole dollar^[id1]. The State Tax Commission's percentage tables (EPB00744, dated July 23, 2026) show one rate and one threshold per column. Single covers head of household too:

The $60,000 example works out like this: $2,307.69 per biweekly check − $619 = $1,688.69; × 5.3% = $89.50, rounded to $90.00. A married filer on the same pay would have $57.00 withheld. This Idaho paycheck calculator uses the status from the federal W-4 unless you pick a different ID W-4 status.

Why ID W-4 allowances now count for nothing

Allowances on Form ID W-4 no longer reduce Idaho withholding: the Idaho child tax credit behind them has sunset under Idaho Code § 63-3029L, so "the allowance amount will be zero"^[id2]. Employers still follow the old steps, but each allowance is multiplied by $0. The Tax Commission's own example shows this. An unmarried employee paid $1,212 biweekly claims four allowances; 4 × $0 = $0 comes off, and the tax is 5.3% of the amount over $619, which is $31.

The annualized method gives the same kind of result. The Commission's example is a married person paid $1,000 a week ($52,000 a year) with four allowances; the yearly tax of $1,060 divided by 52 rounds to $20 a week. That example's text says "over $32,000", while the July 2026 annual table shows $32,200. With $32,200 the yearly tax is $1,049.40, still $20 a week after rounding.

Not confirmed: the July 23, 2026 tables are the only 2026 tables we could read. The Tax Commission announced the update on July 31, 2026^[id3] and says employers do not need to adjust withholding back to the start of the year when a new table comes out. This calculator applies the July 2026 thresholds to the whole year, so paychecks from earlier in 2026 may have been figured differently.

Bonuses, overtime and other extra pay in Idaho

Idaho taxes bonuses, commissions, overtime, accumulated sick-leave payouts, severance, awards, prizes, back pay and retroactive pay earned while working in Idaho. Employers withhold on them in one of two ways^[id2]:

• Combine the supplemental payment with regular wages and withhold as if it were one payment, or
• Flat 5.3% of a separately issued supplemental payment. A $5,000 bonus paid on its own check has $265.00 withheld for Idaho.

Overtime paid with the regular check goes through the threshold method like other wages. Switch the calculator to Hourly and add overtime hours to see the time-and-a-half pay and its 5.3% Idaho share, or start from the time and a half calculator.

The calculator also takes traditional 401(k) deferrals and pre-tax health premiums out of Idaho wages, following the federal wage base. The Tax Commission pages used here do not address this directly, so treat it as an assumption. Neighbors Utah, Washington and Oregon handle wages very differently.

Idaho take-home pay on common salaries

Worked example: $60,000 in Idaho

1. Gross pay: $60,000 a year ÷ 26 paychecks = $2,307.69.
2. Federal income tax: the IRS percentage method annualizes $60,000 of taxable wages, subtracts the $8,600 built into the 2026 tables for a standard W-4, and applies the brackets (top rate 12%): $193.08^[p15t].
3. FICA: 6.2% Social Security $143.08 plus 1.45% Medicare $33.46^[tc751].
4. Idaho: Idaho income tax (5.3%) $90.00.
5. Net pay: $1,848.08 per paycheck, $48,050 a year (80.1% of gross).

Compare Idaho with nearby states

Same $60,000 salary, different state: Utah $1,835.08 · Washington $1,906.07 · Oregon $1,768.37 per paycheck. The state tax calculator ranks every state we cover on one salary, and the paycheck calculator switches states in one click. Hourly? Add overtime with the time and a half calculator.