$100,000 After Taxes in Iowa (2026)

A single filer paid $100,000 in Iowa has $83,900 of federal taxable income after the $16,100 standard deduction. The top slice of that income falls in the 22% federal bracket, which starts at $50,400 of taxable income, and federal income tax comes to $13,170, or 13.17% of the salary.

Payroll tax is federal and the same in Iowa as everywhere else: on $100,000 of wages it is $7,650, made up of $6,200 of Social Security at 6.2% of every dollar and $1,450 of Medicare at 1.45%.

Iowa taxable income is $83,900, and Iowa taxes it at its flat 3.8% rate. State income tax is $3,148, after $40 of credits the state applies at this income, 3.15% of the salary. Iowa's individual income tax is a flat 3.8% for tax year 2025 and later, the final step of S.F. 2442 (2024).

Altogether $23,968 of a $100,000 Iowa salary goes to tax, an effective total rate of 23.97%, which leaves $76,032 a year: $6,336 a month, $2,924 every two weeks, $1,462 a week, or $37 an hour over 2,080 hours.

At $100,000, Iowa ranks 17th of 51 jurisdictions for take-home pay, highest first. A no-tax state leaves $3,148 more a year, and the median state $543 less than Iowa. The lowest take-home at $100,000 is $72,032, in Oregon, $4,000 less than in Iowa.

Across the state line the same $100,000 leaves a single filer: Minnesota $73,903, $2,128 less; Wisconsin $74,752, $1,279 less; Illinois $74,375, $1,657 less; Missouri $75,510, $522 less; Nebraska $75,510, $522 less; South Dakota $79,180, $3,148 more.

Some localities in Iowa levy their own income tax, and none of it is included in the $100,000 figures here; the local income tax pages explain how it works.

These Iowa figures treat the whole $100,000 as wages, take the standard deduction, claim no dependents and include no federal credits. A pre-tax 401(k) contribution or health premium would lower taxable income and raise take-home; a second income or itemized deductions would change it again.