$40,000 Salary: Your Paycheck in Idaho (2026)
Curious what your paycheck looks like on a $40,000 salary in Idaho? With 26 biweekly paychecks per year, your net deposit is approximately $1,271.28 per pay period, or $33,053 per year after federal, FICA, and state taxes.
Net Pay by Period
Tax Breakdown
| Gross annual salary | $40,000 |
| Federal income tax | −$2,620 |
| Social Security (6.2%) | −$2,480 |
| Medicare (1.45%) | −$580 |
| Idaho state income tax | −$1,267 |
| Total taxes | −$6,947 |
| Net annual pay | $33,053 |
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 $40,000 salary looks like across each schedule in Idaho:
| Pay Schedule | Paychecks/Year | Gross/Check | Net/Check |
|---|---|---|---|
| Weekly | 52 | $769.23 | $635.64 |
| Biweekly | 26 | $1,538.46 | $1,271.28 |
| Semi-monthly | 24 | $1,666.67 | $1,377.22 |
| Monthly | 12 | $3,333.33 | $2,754.44 |
Common Scenarios
Living on $40,000 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 $40,000 salary is $34,942 below the state median, and $40,610 below the US national median household income of $80,610.
Idaho's cost of living index is 99 (US average = 100), so your $33,053 net pay has the purchasing power of approximately $33,387 in an average-cost state. Boise, Meridian, and Nampa all sit near the national cost-of-living average.
Living on $40,000 in Boise
In Boise — Idaho's economic hub for tech, agriculture, and manufacturing — a $40,000 salary translates to roughly $2,754 in monthly take-home pay. The average 1-bedroom asking rent is around $1,350/month, which would consume about 49.0% of your net income. That's well above the 30% rent-to-income guideline — housing will be tight.
Idaho vs Washington: Washington charges no state income tax, so the same $40,000 gross salary yields about $34,320 net there — roughly $1,267 more than in Idaho. Cost of living and job availability usually offset part of that gap. Compare directly: $40,000 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.