This tool converts an hourly wage into a gross annual salary, then estimates your Idaho take-home pay after FICA, federal income tax, and Idaho’s flat state income tax. Idaho has no local income taxes, so the state portion is a single flat rate on taxable income, which keeps the estimate clean.
How it works
Gross salary is the hourly rate times hours per week times weeks per year. Each tax layer is then subtracted:
gross = hourly × hours/week × weeks/year
FICA = 6.2% Social Security (up to wage base) + 1.45% Medicare
federal = graduated brackets on (gross − federal standard deduction)
idaho = ~5.695% flat on (gross − state standard deduction)
net = gross − FICA − federal − idaho
Idaho’s standard deduction matches the federal standard deduction, and there is no city or county income tax to add.
How it works in practice
A 25-dollar hourly wage at 40 hours for 52 weeks is 25 × 40 × 52 = 52,000
gross. FICA is about 52,000 × 0.0765 = 3,978; Idaho tax is roughly
(52,000 − 15,000) × 0.05695 ≈ 2,107 for a single filer; federal tax applies on
top. Subtract all three to get net annual pay, then divide by 26 for a bi-weekly
paycheck. This is an estimate that ignores 401(k), pre-tax benefits, and credits
— verify with a tax professional or your pay stub.