Flat 3.80% Rank #17 of 51 2026 tax year

State income tax · 2026 tax year

How much does $100K take home in Iowa?

Iowa applies a flat 3.80%. See where every withheld dollar goes, the full bracket schedule, and your own take-home.

Calculate my Iowa take-home → See state rankings
$100,000 single filer in Iowa
IRS · SSA · Tax Foundation · 2026
$75,992

A single filer earning $100,000 in Iowa keeps $75,992 after federal, FICA, and state tax (24.0% effective; state tax $3,190). Structure: Flat 3.80%. Rank #17 of 51 by total burden (1 = lowest).

  • Burden rank #17 of 51 at $100K single
  • State tax on $100K: $3,190
  • 2026 tax year · IRS + state DOR schedules

Take-home paystub plate

Stub PS-IA-26 · Iowa Flat 3.80% · rank #17/51

Iowa · $3,190 state tax on $100K · NaN% all-in effective · rank #17/51

  • BURDEN-MID #17/51
  • STRUCT-FLAT Flat 3.80%
  • TOP-LOW 3.80%
  • GAP-TIGHT +0.6pp
  • FICA-PEAK $7,650
  • BOOK-FLAT 1 band
  • PHOTO-NEAR Pennsylvania
  • TH-100K $NaN

Nearest $100K burden peer: Pennsylvania ( $120 state tax on $100K)

Instrument codes from this state’s IRS + DOR withholding stack (burden rank, structure class, headline gap, FICA line, bracket book, photo-finish peer, net $100K), not a generic recommendation.

The bottom line

A single filer earning $100,000 in Iowa keeps $75,992 after federal income tax, FICA, and Iowa's flat 3.80% state tax, an effective rate of 24.0% (state tax alone: $3,190) - below the national median total tax burden.

Single filer taking the standard deduction, wage income only. Federal and FICA are identical in every state - Iowa's difference is its state income tax line.

$75,992 Take-home on $100K (single)
24.0% Effective rate (fed + FICA + state)
$3,190 State income tax on $100K
#17 of 51 by total burden (1 = lowest)

Every figure on PlainSalary is computed directly from official IRS, state Department of Revenue, and SSA tax data, no number is typed in by an editor. State tax figures are computed directly from official Department of Revenue data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.

Iowa vs all states by $100K state income tax

Where this state's computed state-tax dollars sit among every jurisdiction on PlainSalary (lower is better)

$3,190 Lower than most lower burden than 67% of 51 states

States and D.C., banded by state income tax on a $100K single filer

Each bar is a $0.001K-wide band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source IRS · state DOR schedules · PlainSalary computation · 2026 tax year

Iowa take-home pay by salary (2026, single)

What's left after federal income tax, FICA, and Iowa state tax.

$50,000 gross

$41,067

take-home · 17.9% effective tax

$100,000 gross

$75,992

take-home · 24.0% effective tax

$200,000 gross

$141,939

take-home · 29.0% effective tax

Where Iowa sits on the state-tax scale

States immediately above and below Iowa by total tax burden on a $100K single filer (state income tax shown).

KY

Kentucky

3.50% top marginal rate
Structure
Flat tax
Burden @ $100K
$2,940

PA

Pennsylvania

3.07% top marginal rate
Structure
Flat tax
Burden @ $100K
$3,070
Selected

IA

Iowa

3.80% top marginal rate
Structure
Flat tax
Burden @ $100K
$3,190

NC

North Carolina

3.99% top marginal rate
Structure
Flat tax
Burden @ $100K
$3,350

MS

Mississippi

4.00% top marginal rate
Structure
Flat tax
Burden @ $100K
$3,360

Does Iowa's 3.80% headline rate tell the truth at $100K?

Low rate, high reality (flat-tax bite)High rate, high realityLow rate, low realityHigh rate, overstates $100K reality2.0%4.9%7.9%10.9%13.8%0.3%2.4%4.4%6.5%8.6%Top marginal rate (%)Actual state-only effective rate at $100K (%)OR, Top marginal rate (%): 9.9% · Actual state-only effective rate at $100K (%): 8.18%HI, Top marginal rate (%): 11% · Actual state-only effective rate at $100K (%): 6.16%ME, Top marginal rate (%): 7.15% · Actual state-only effective rate at $100K (%): 6.03%DC, Top marginal rate (%): 10.75% · Actual state-only effective rate at $100K (%): 5.53%DE, Top marginal rate (%): 6.6% · Actual state-only effective rate at $100K (%): 5.37%KS, Top marginal rate (%): 5.58% · Actual state-only effective rate at $100K (%): 5.29%MN, Top marginal rate (%): 9.85% · Actual state-only effective rate at $100K (%): 5.28%CA, Top marginal rate (%): 13.3% · Actual state-only effective rate at $100K (%): 5.22%MA, Top marginal rate (%): 9% · Actual state-only effective rate at $100K (%): 5%VA, Top marginal rate (%): 5.75% · Actual state-only effective rate at $100K (%): 4.99%NY, Top marginal rate (%): 10.9% · Actual state-only effective rate at $100K (%): 4.86%SC, Top marginal rate (%): 6% · Actual state-only effective rate at $100K (%): 4.84%AL, Top marginal rate (%): 5% · Actual state-only effective rate at $100K (%): 4.81%IL, Top marginal rate (%): 4.95% · Actual state-only effective rate at $100K (%): 4.81%CT, Top marginal rate (%): 6.99% · Actual state-only effective rate at $100K (%): 4.75%MD, Top marginal rate (%): 6.5% · Actual state-only effective rate at $100K (%): 4.54%VT, Top marginal rate (%): 8.75% · Actual state-only effective rate at $100K (%): 4.49%ID, Top marginal rate (%): 5.3% · Actual state-only effective rate at $100K (%): 4.45%GA, Top marginal rate (%): 5.19% · Actual state-only effective rate at $100K (%): 4.35%MT, Top marginal rate (%): 5.65% · Actual state-only effective rate at $100K (%): 4.29%NJ, Top marginal rate (%): 10.75% · Actual state-only effective rate at $100K (%): 4.25%MI, Top marginal rate (%): 4.25% · Actual state-only effective rate at $100K (%): 4.01%OK, Top marginal rate (%): 4.5% · Actual state-only effective rate at $100K (%): 4%WV, Top marginal rate (%): 4.82% · Actual state-only effective rate at $100K (%): 3.98%WI, Top marginal rate (%): 7.65% · Actual state-only effective rate at $100K (%): 3.96%MO, Top marginal rate (%): 4.7% · Actual state-only effective rate at $100K (%): 3.94%NE, Top marginal rate (%): 4.55% · Actual state-only effective rate at $100K (%): 3.85%UT, Top marginal rate (%): 4.5% · Actual state-only effective rate at $100K (%): 3.78%AR, Top marginal rate (%): 3.9% · Actual state-only effective rate at $100K (%): 3.72%CO, Top marginal rate (%): 4.4% · Actual state-only effective rate at $100K (%): 3.69%NM, Top marginal rate (%): 5.9% · Actual state-only effective rate at $100K (%): 3.57%RI, Top marginal rate (%): 5.99% · Actual state-only effective rate at $100K (%): 3.4%MS, Top marginal rate (%): 4% · Actual state-only effective rate at $100K (%): 3.36%NC, Top marginal rate (%): 3.99% · Actual state-only effective rate at $100K (%): 3.35%IA, Top marginal rate (%): 3.8% · Actual state-only effective rate at $100K (%): 3.19%PA, Top marginal rate (%): 3.07% · Actual state-only effective rate at $100K (%): 3.07%KY, Top marginal rate (%): 3.5% · Actual state-only effective rate at $100K (%): 2.94%IN, Top marginal rate (%): 2.95% · Actual state-only effective rate at $100K (%): 2.92%LA, Top marginal rate (%): 3% · Actual state-only effective rate at $100K (%): 2.52%OH, Top marginal rate (%): 2.75% · Actual state-only effective rate at $100K (%): 2.31%AZ, Top marginal rate (%): 2.5% · Actual state-only effective rate at $100K (%): 2.1%ND, Top marginal rate (%): 2.5% · Actual state-only effective rate at $100K (%): 0.69%
Iowa is highlighted among all 42 states that tax wage income. Iowa's 3.80% top rate overstates reality by 0.61 points - the top bracket only bites well above $100,000. Benchmarks: 5.30% median top rate, 4.25% median $100K state-effective rate across taxed states.
Read the chart as a table (all 42 taxed states)
StateTop marginal rateActual $100K state-effective rate
Alabama5.00%4.81%
Arizona2.50%2.10%
Arkansas3.90%3.72%
California13.30%5.22%
Colorado4.40%3.69%
Connecticut6.99%4.75%
Delaware6.60%5.37%
District of Columbia10.75%5.53%
Georgia5.19%4.35%
Hawaii11.00%6.16%
Idaho5.30%4.45%
Illinois4.95%4.81%
Indiana2.95%2.92%
Iowa (this state)3.80%3.19%
Kansas5.58%5.29%
Kentucky3.50%2.94%
Louisiana3.00%2.52%
Maine7.15%6.03%
Maryland6.50%4.54%
Massachusetts9.00%5.00%
Michigan4.25%4.01%
Minnesota9.85%5.28%
Mississippi4.00%3.36%
Missouri4.70%3.94%
Montana5.65%4.29%
Nebraska4.55%3.85%
New Jersey10.75%4.25%
New Mexico5.90%3.57%
New York10.90%4.86%
North Carolina3.99%3.35%
North Dakota2.50%0.69%
Ohio2.75%2.31%
Oklahoma4.50%4.00%
Oregon9.90%8.18%
Pennsylvania3.07%3.07%
Rhode Island5.99%3.40%
South Carolina6.00%4.84%
Utah4.50%3.78%
Vermont8.75%4.49%
Virginia5.75%4.99%
West Virginia4.82%3.98%
Wisconsin7.65%3.96%

Iowa 2026 bracket schedule (single filer)

Taxable income Marginal rate
$0 – $1,000,000,000,000,000 3.80%

Source: Tax Foundation, 2026 State Individual Income Tax Rates and Brackets, cross-checked against the Iowa Department of Revenue. Single-filer schedule.

Quick Iowa state-tax estimate

Enter taxable income for the Iowa state portion (single filer, 2026). For the full federal + FICA picture use the calculator.

Similar states nationwide

Peers matched on tax attributes across all 51 jurisdictions, a different lens from the burden-rank neighbors below.

Similar top marginal rate

Wage-taxing states closest to Iowa’s 3.80% statutory ceiling.

  • Arkansas · 3.90% top rate · $3,720 state tax on $100K
  • North Carolina · 3.99% top rate · $3,350 state tax on $100K
  • Mississippi · 4.00% top rate · $3,360 state tax on $100K
  • Kentucky · 3.50% top rate · $2,940 state tax on $100K
  • Michigan · 4.25% top rate · $4,010 state tax on $100K
  • Colorado · 4.40% top rate · $3,690 state tax on $100K

Similar $100K take-home pay

Jurisdictions where a $100,000 single filer keeps roughly $75,992 after federal, state, and FICA.

Read with Iowa

Iowa's flat 3.80% line behaves differently from graduated neighbors. These peers sit closest on the $100K burden ladder.

Effective vs marginal rate · Calculate my Iowa take-home · Methodology