$100,000 Salary: Your Paycheck in Idaho (2026)
Curious what your paycheck looks like on a $100,000 salary in Idaho? With 26 biweekly paychecks per year, your net deposit is approximately $2,874.36 per pay period, or $74,733 per year after federal, FICA, and state taxes.
Net Pay by Period
Tax Breakdown
| Gross annual salary | $100,000 |
| Federal income tax | −$13,170 |
| Social Security (6.2%) | −$6,200 |
| Medicare (1.45%) | −$1,450 |
| Idaho state income tax | −$4,447 |
| Total taxes | −$25,267 |
| Net annual pay | $74,733 |
Paycheck by Pay Frequency in Idaho
Most US employers pay biweekly (26 paychecks/year), but some use weekly, semi-monthly, or monthly. Here's what your $100,000 salary looks like across each schedule in Idaho:
| Pay Schedule | Paychecks/Year | Gross/Check | Net/Check |
|---|---|---|---|
| Weekly | 52 | $1,923.08 | $1,437.18 |
| Biweekly | 26 | $3,846.15 | $2,874.36 |
| Semi-monthly | 24 | $4,166.67 | $3,113.89 |
| Monthly | 12 | $8,333.33 | $6,227.78 |
Common Scenarios
Living on $100,000 in Idaho
Idaho transitioned from progressive brackets to a single flat 5.8% rate in 2023, and has already cut it twice to 5.3% in 2025. The median household income in Idaho is approximately $74,942 — meaning a $100,000 salary is $25,058 above the state median, and $19,390 above the US national median household income of $80,610.
Idaho's cost of living index is 99 (US average = 100), so your $74,733 net pay has the purchasing power of approximately $75,488 in an average-cost state. Boise, Meridian, and Nampa all sit near the national cost-of-living average.
Living on $100,000 in Boise
In Boise — Idaho's economic hub for tech, agriculture, and manufacturing — a $100,000 salary translates to roughly $6,228 in monthly take-home pay. The average 1-bedroom asking rent is around $1,350/month, which would consume about 21.7% of your net income. That's comfortably within the 30% rent-to-income guideline.
Idaho vs Washington: Washington charges no state income tax, so the same $100,000 gross salary yields about $79,180 net there — roughly $4,447 more than in Idaho. Cost of living and job availability usually offset part of that gap. Compare directly: $100,000 Paycheck in Washington →
This calculation assumes you are a single filer with no dependents and take the federal standard deduction of $16,100 for 2026. Federal income tax uses the 2026 IRS tax brackets. FICA includes Social Security at 6.2% on wages up to $184,500 and Medicare at 1.45% (plus 0.9% additional Medicare above $200,000). Idaho state income tax uses the 2026 flat tax rate with a state standard deduction of $16,100. For a custom calculation, try our free paycheck calculator.