Idaho Payroll Hours Calculator 2026

Yes. Idaho applies a flat 5.8% state income tax. On a $85,000 salary that works out to $4,930 in state tax for 2026, on top of $10,072 federal income tax and $6,503 FICA.

A single filer earning $85,000 in Idaho takes home approximately $63,496 per year — about $5,291/month or $2,442 per biweekly paycheck. Total taxes: $21,505 (25.3% effective rate), split between federal income tax ($10,072), FICA ($6,503), and Idaho state tax ($4,930).

On a $120,000 salary in Idaho, a single filer keeps approximately $86,077 per year ($7,173/month). The overall effective tax rate is 28.27%, of which $6,960 is Idaho state income tax.

Approximately $3,770 for 2026 (single filer). Combined with $5,672 federal income tax and $4,973 FICA, total deductions reach $14,415 and take-home pay is $50,586.

Between 22.18% and 28.27% for salaries in the $65,000–$120,000 range (single filer, 2026 rates). The biggest pieces are federal income tax and 7.65% FICA; Idaho state tax adds roughly 5.8% at $85,000. Use the payroll hours calculator above for your exact numbers.