$300,000 After Taxes in Iowa (2026)

A single filer paid $300,000 in Iowa has $283,900 of federal taxable income after the $16,100 standard deduction. The top slice of that income falls in the 35% federal bracket, which starts at $256,225 of taxable income, and federal income tax comes to $68,134, or 22.71% of the salary.

Payroll tax is federal and the same in Iowa as everywhere else: on $300,000 of wages it is $16,689, made up of $11,439 of Social Security, which stops at the $184,500 wage base, and $4,350 of Medicare at 1.45%, plus $900 of Additional Medicare tax at 0.9% on the wages above $200,000.

Iowa taxable income is $283,900, and Iowa taxes it at its flat 3.8% rate. State income tax is $10,748, after $40 of credits the state applies at this income, 3.58% 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 $95,571 of a $300,000 Iowa salary goes to tax, an effective total rate of 31.86%, which leaves $204,429 a year: $17,036 a month, $7,863 every two weeks, $3,931 a week, or $98 an hour over 2,080 hours.

At $300,000, Iowa ranks 18th of 51 jurisdictions for take-home pay, highest first. A no-tax state leaves $10,748 more a year, and the median state $2,206 less than Iowa. The lowest take-home at $300,000 is $187,521, in Oregon, $16,907 less than in Iowa.

Across the state line the same $300,000 leaves a single filer: Minnesota $192,665, $11,764 less; Wisconsin $199,917, $4,511 less; Illinois $200,327, $4,102 less; Missouri $202,014, $2,414 less; Nebraska $202,406, $2,022 less; South Dakota $215,177, $10,748 more.

Some localities in Iowa levy their own income tax, and none of it is included in the $300,000 figures here; the local income tax pages explain how it works.

These Iowa figures treat the whole $300,000 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.