$45,000 After Taxes in Iowa (2026)

A single filer paid $45,000 in Iowa has $28,900 of federal taxable income after the $16,100 standard deduction. The top slice of that income falls in the 12% federal bracket, which starts at $12,400 of taxable income, and federal income tax comes to $3,220, or 7.16% of the salary.

Payroll tax is federal and the same in Iowa as everywhere else: on $45,000 of wages it is $3,443, made up of $2,790 of Social Security at 6.2% of every dollar and $653 of Medicare at 1.45%.

Iowa taxable income is $28,900, and Iowa taxes it at its flat 3.8% rate. State income tax is $1,058, after $40 of credits the state applies at this income, 2.35% 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 $7,721 of a $45,000 Iowa salary goes to tax, an effective total rate of 17.16%, which leaves $37,279 a year: $3,107 a month, $1,434 every two weeks, $717 a week, or $18 an hour over 2,080 hours.

At $45,000, Iowa ranks 18th of 51 jurisdictions for take-home pay, highest first. A no-tax state leaves $1,058 more a year, and the median state $213 less than Iowa. The lowest take-home at $45,000 is $35,518, in Oregon, $1,761 less than in Iowa.

Across the state line the same $45,000 leaves a single filer: Minnesota $36,749, $531 less; Wisconsin $37,007, $272 less; Illinois $36,255, $1,025 less; Missouri $37,198, $82 less; Nebraska $37,170, $110 less; South Dakota $38,338, $1,058 more.

Some localities in Iowa levy their own income tax, and none of it is included in the $45,000 figures here; the local income tax pages explain how it works.

These Iowa figures treat the whole $45,000 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.