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Iowa Paycheck Calculator

Iowa has a flat 3.8% state income tax. On a $75,000 salary a single filer takes home about $59,354 — $4,946 a month, after $2,238 of state income tax.

Take-home on $75k
$59,354
State tax
$2,238
Effective rate
20.9%

Iowa take-home calculator

How Iowa taxes wages

Iowa applies a flat 3.8% rate to taxable wages after a $16,100 standard deduction. A flat rate means the percentage does not rise with income, but the dollar amount does: at $50,000 you pay about $1,288, at $100,000 about $3,188.

Federal tax applies everywhere

Whatever the state does, the federal side is identical. On $75,000 a single filer pays $7,670 of federal income tax after the $16,100 standard deduction, plus $5,738 in Social Security and Medicare.

ItemAnnualMonthly
Gross$75,000$6,250
Federal income tax−$7,670−$639
Iowa income tax−$2,238−$187
FICA−$5,738−$478
Net$59,354$4,946
Against Texas (no wage tax) the same $75,000 nets $61,593. Iowa comes out $2,238 behind.

What is specific to Iowa here

Your marginal rate — what you lose on the next dollar earned — is 33.5% in Iowa, against 29.6% in Texas. That is the number that matters for overtime, a raise or a second job.

LineIowaTexas (no state tax)Difference
State income tax$2,238$0$2,238
Take-home$59,354$61,593−$2,238
Monthly$4,946$5,133−$187

Over a working year that is $187 a month of difference on the same gross salary.

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