Iowa income tax calculator
An effective rate of 2.93%, with 3.8% on the next dollar. That is the 36th-largest state income tax bill on $75,000 of the 51 jurisdictions.
- Top rate
- 3.8%
- Rate on your last dollar
- 3.8%
- State taxable income
- $58,900
- Effective rate
- 2.93%
Iowa taxes every dollar of state taxable income at a single rate of 3.8% — the 35th-highest top rate of the 51 jurisdictions. A single filer subtracts a $16,100 standard deduction before the rates are applied, and a $40 personal exemption then comes off the tax itself rather than off income. Because the rate itself never changes, the effective rate moves only as those fixed dollar amounts shrink against a bigger salary — 2.17% on $40,000, rising to 3.37% on $150,000.
Iowa 2026 tax rate
One rate, applied to state taxable income after the deductions below.
Single · Married filing jointly · Head of household
| State taxable income | Rate |
|---|---|
| All state taxable income | 3.8% |
Iowa deductions and exemptions
| Amount | Single | Married filing jointly | Head of household |
|---|---|---|---|
| Standard deduction | $16,100 | $32,200 | $24,150 |
| Personal exemption (credit against the tax) | $40 | $80 | $40 |
Work out your own Iowa tax
Already set to Iowa and the 2026 federal schedule. Change the income, the filing status or the year and everything below updates.
Wages, interest, business income, etc. Exclude pre-tax 401(k) and HSA contributions.
Adds state income tax using that state's own rate schedule and standard deduction. Pick the last option to type a flat rate instead.
- Effective federal tax rate
- 10.23%Federal tax as a share of the income you entered.
- Marginal bracket
- 22%The rate on your next dollar of taxable income.
- State income tax
- $2,198.20From the selected state's rate schedule, or your flat rate.
- Federal + state income tax
- $9,868.20
- Income after income tax
- $65,131.80
- Taxable income
- $58,900.00
- Deduction applied
- $16,100.00
Assumptions
- Ordinary-income rate schedules only; no credits, AMT, capital-gains rates, QBI deduction or the 2025–2028 senior deduction.
- Standard deduction (plus additional amounts for 65+/blind) or your itemized figure, whichever is larger; no dependent-filer limitation.
- Married filing separately uses half the joint federal thresholds, per the IRS schedule, and the state's single-filer schedule.
- State tax uses each state's published rate schedule, standard deduction and personal exemption for the tax year shown with the results; the source URL and year for the state you pick are printed above the results, along with the simplifications made for that state.
- State figures exclude county, municipal and city income taxes, itemized deductions, retirement and capital-gains exclusions, and credits that phase out. Unlisted states fall back to the flat rate you enter.
| Taxable income | Rate | Your income in this bracket | Tax |
|---|---|---|---|
| $0 – $12,400 | 10% | $12,400 | $1,240 |
| $12,400 – $50,400 | 12% | $38,000 | $4,560 |
| $50,400 – $105,700 | 22% | $8,500 | $1,870 |
| $105,700 – $201,775 | 24% | $0 | $0 |
| $201,775 – $256,225 | 32% | $0 | $0 |
| $256,225 – $640,600 | 35% | $0 | $0 |
| Over $640,600 | 37% | $0 | $0 |
Iowa income tax at other incomes
| Gross income | Single | Effective | Married jointly | Effective |
|---|---|---|---|---|
| $30,000 | $488 | 1.63% | $0 | 0.00% |
| $50,000 | $1,248 | 2.50% | $596 | 1.19% |
| $75,000 | $2,198 | 2.93% | $1,546 | 2.06% |
| $100,000 | $3,148 | 3.15% | $2,496 | 2.50% |
| $150,000 | $5,048 | 3.37% | $4,396 | 2.93% |
| $250,000 | $8,848 | 3.54% | $8,196 | 3.28% |
State income tax only, filing status as shown, after Iowa’s own deductions. Federal tax is on top of every figure here.
How the neighbours compare
Iowa borders 6 other jurisdictions. Moving across a state line is the one way most people can actually change which of these schedules applies to them, so here is the same income run through each of them.
| State | Rate structure | $50,000 | $75,000 | $150,000 |
|---|---|---|---|---|
| Iowa | Flat 3.8% | $1,248 | $2,198 | $5,048 |
| Illinois | Flat 4.95% | $2,330 | $3,568 | $7,280 |
| Minnesota | 5.35% – 9.85% | $1,877 | $3,577 | $8,942 |
| Missouri | 0% – 4.7% | $1,434 | $2,609 | $6,134 |
| Nebraska | 2.46% – 4.55% | $1,395 | $2,533 | $5,945 |
| South Dakota | No income tax | $0 | $0 | $0 |
| Wisconsin | 3.5% – 7.65% | $1,577 | $2,944 | $7,309 |
State income tax on a single filer, after each state’s own deductions. Federal tax is identical wherever you live, so the difference between these rows is the whole difference.
What these Iowa figures leave out
Recorded against Iowa in the data rather than glossed over, because they change real bills.
- Iowa starts from federal taxable income, so the deduction applied is the federal one. The standard deduction is the federal amount this state adopts: $16,100 single, $32,200 married filing jointly, $24,150 head of household for 2026 (IRS Rev. Proc. 2025-32 §4.14).
- Iowa's personal exemption is a $40 credit per filer, applied here against the tax.
- Local income taxes are not included. Many Iowa school districts levy a surtax on state income tax owed.
Frequently asked questions
▸Does Iowa have a state income tax?
Yes. Iowa taxes state taxable income at a flat 3.8%, whatever you earn and whichever status you file under.
▸How much state income tax would I pay on $75,000 in Iowa?
About $2,198 for a single filer — an effective rate of 2.93%. That is $75,000 less $16,100 of state deductions, leaving $58,900 of taxable income taxed at 3.8% at the margin.
▸What is the top income tax rate in Iowa?
3.8% — there is only one rate, which makes it the 35th-highest top rate among the 50 states and the District of Columbia.
▸What is the Iowa standard deduction?
$16,100 for a single filer and $32,200 for a couple filing jointly, for tax year 2026.
▸Are there local income taxes in Iowa?
Local income taxes are not included. Many Iowa school districts levy a surtax on state income tax owed.
Source
Iowa Department of Revenue — IDR Announces 2026 Individual Income Tax Rate
Tax year 2026 figures, last checked against the source on 2026-09-09.
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Iowa income tax calculator: Iowa income tax on $75,000, filing single is $2,198. Source: https://www.calculateitnow.dev/iowa-income-tax-calculator