$40,000 after tax in Iowa (2026)

Tax year 2026, single filer, standard deduction. Every bracket, payroll contribution and surtax, and where the money is spent.

Take-home
$33,412
on $40,000 in Iowa
Total tax
$6,588
20th lowest of 51
Effective rate
16.47%
of gross income
Marginal rate
15.90%
on your next dollar

On a $40,000 salary in Iowa, you keep $33,412 after income tax and payroll contributions. That is an effective rate of 16.47%. Every extra dollar you earn is taxed at 15.90%.

Of that, $868 goes to Iowa and the rest to the federal government.

Among the 51 US states and DC, Iowa ranks 20th lowest at this income. The same salary would cost $5,680 in Alaska and $8,495 in New York, a spread of $2,815 a year.

Your $6,588 funds benefits & pensions more than anything else ($1,648), followed by health ($1,565) and debt interest ($910).

What you pay

Every charge, at every level of government.

ChargeAmount
Social Securityfederal · 6.20%$2,480.00
Medicarefederal · 1.45%$580.00
Federal income taxfederal · 12.00%$2,620.00
Iowa income taxstate · 3.80%$868.20
Local income tax (estimate)local · 0.10%$40.00
Total tax$6,588.20

Where your tax goes

Your $6,588 apportioned across what these governments actually budget to spend.

ProgrammeYour share
Medicare and Medicaidfederal · 20.81%Health coverage for people over 65 and for people on low incomes. Together they are the largest single thing the federal government buys.$1,370.80
Social Security retirement and survivorsfederal · 16.63%Monthly benefits to retired workers, their spouses and survivors. Funded by the payroll tax you pay separately.$1,095.53
Interest on the national debtfederal · 13.81%Interest on accumulated federal borrowing. It buys nothing, being the price of past deficits, and it is now the single largest line in the federal budget.$909.84
Public welfare and social servicesstate · 4.55%$299.93
Department of Veterans Affairsfederal · 4.42%Veterans' health care, disability compensation and pensions.$291.08
Military operations and maintenancefederal · 4.02%Running the armed forces day to day: training, fuel, maintenance, bases.$264.66
IRS and refundable tax creditsfederal · 3.31%Collecting tax, and paying out refundable credits such as the Earned Income Tax Credit and the refundable part of the Child Tax Credit.$217.80
Department of Agriculturefederal · 2.67%SNAP food assistance, school meals, farm support and the Forest Service.$175.79
K-12 educationstate · 2.43%$160.37
Military personnelfederal · 2.42%Pay and allowances for service members.$159.61
Weapons and equipment procurementfederal · 1.90%Buying aircraft, ships, vehicles and munitions.$125.22
Social Security disability insurancefederal · 1.87%Benefits for workers who can no longer work because of disability.$123.52
Defence research and developmentfederal · 1.66%Developing and testing new military technology.$109.29
Hospitalsstate · 1.62%$107.01
Office of Personnel Managementfederal · 1.50%Federal civilian employee retirement and health benefits.$99.12
Department of Transportationfederal · 1.50%Highways, transit, aviation and rail.$98.61
Department of Homeland Securityfederal · 1.35%Border and immigration enforcement, FEMA, the Coast Guard and the TSA.$89.12
Other and unallocatedstate · 1.33%$87.74
Highways and roadsstate · 1.29%$85.20
Colleges and universitiesstate · 1.21%$79.46
Other Defense Civil Programsfederal · 0.90%Military retirement and related trust funds.$59.12
Supplemental Security Incomefederal · 0.81%Payments to people over 65 or with disabilities who have very little income.$53.59
Department of Energyfederal · 0.61%The nuclear weapons complex, national laboratories and energy research.$40.42
Department of Housing and Urban Developmentfederal · 0.59%Rental assistance, public housing and community development.$39.06
Department of Laborfederal · 0.59%Unemployment insurance, worker protection and job training.$38.94
National Institutes of Healthfederal · 0.55%Medical and biomedical research.$36.55
Department of Justicefederal · 0.53%The FBI, DEA, federal prisons and US attorneys.$34.74
Environmental Protection Agencyfederal · 0.43%Clean air and water enforcement, and Superfund cleanups.$28.58
Department of Educationfederal · 0.41%Student aid, and funding for schools serving low-income students.$26.83
Department of Commercefederal · 0.35%The Census, NOAA, the Patent Office and economic development.$22.97
Department of Statefederal · 0.33%Embassies, diplomacy and foreign assistance.$21.92
University auxiliary servicesstate · 0.31%$20.17
National Aeronautics and Space Administrationfederal · 0.29%Space exploration and science.$19.00
Department of the Interiorfederal · 0.26%National parks, public lands and tribal programmes.$17.32
International Assistance Programsfederal · 0.20%Foreign aid, development finance and the Peace Corps.$13.37
Military construction and housingfederal · 0.19%Building and maintaining bases and family housing.$12.44
Public health servicesstate · 0.18%$11.98
Prisons and correctionsstate · 0.18%$11.97
Financial administrationstate · 0.18%$11.96
Health Resources and Services Administrationfederal · 0.18%Community health centres, rural health and the organ transplant system.$11.67
Courts and legal servicesstate · 0.17%$11.03
Corps of Engineersfederal · 0.14%Flood control, waterways and harbours.$9.37
Centers for Disease Controlfederal · 0.13%Disease surveillance, outbreak response and immunisation.$8.81
Housing and community developmentstate · 0.13%$8.64
HHS departmental managementfederal · 0.13%Running the department.$8.35
National Science Foundationfederal · 0.12%Basic scientific research grants.$7.69
Judicial Branchfederal · 0.11%The federal courts.$7.54
Indian Health Servicefederal · 0.10%Health care for American Indian and Alaska Native people.$6.41
Substance abuse and mental healthfederal · 0.10%Addiction treatment and community mental health services.$6.41
Legislative Branchfederal · 0.08%Congress, the GAO and the Library of Congress.$5.59
Independent Agenciesfederal · 0.08%Smaller independent federal agencies.$5.25
State policestate · 0.08%$4.96
Food and Drug Administrationfederal · 0.04%Drug, device and food safety regulation.$2.55
Other HHS programmesfederal · 0.04%Remaining public health and human services programmes.$2.55
Inspection and regulationstate · 0.04%$2.37
Administration for Community Livingfederal · 0.04%Services for older adults and people with disabilities.$2.32
Central staff servicesstate · 0.02%$1.48
Government buildingsstate · 0.02%$1.36
Parks and recreationstate · 0.02%$1.16
Small Business Administrationfederal · 0.01%Small business lending and disaster loans.$0.65
Airportsstate · 0.01%$0.45
Natural resources and conservationstate · 0.01%$0.44
Librariesstate · 0.00%$0.27
Solid waste managementstate · 0.00%$0.16
Veterans servicesstate · 0.00%$0.07
Seweragestate · 0.00%$0.03

United States federal government FY2025: US Treasury, Monthly Treasury Statement Table 5, net outlays by agency for the fiscal year ended 2025-09-30, with the four largest agencies split into their published components.

IA 2023: US Census Bureau, Annual Survey of State Government Finances, table GS00SG01.

  • Allocation is proportional to published spending, not a trace of your actual dollars. No specific payment funds a specific programme.
  • Governments run deficits, so total spending exceeds total tax revenue. These shares show the composition of spending, not a balanced ledger.

What to check before trusting this

  • Some school districts levy a surtax. An estimate at the state's average local rate of 0.10% is shown separately; your actual rate depends on where you live.
  • Iowa's personal exemption is a $40 credit against tax, not a deduction from income.
  • State figures are for tax year 2025 and every one has been cross-checked against the state's own published schedule or its enacting legislation (audited 2026-09-08). Confirm against the state revenue department before filing.

Common questions

How much is $40,000 after tax in Iowa in 2026?
$33,412. Income tax and payroll contributions come to $6,588, an effective rate of 16.47%.
What is the 2026 marginal tax rate in Iowa?
15.90% at $40,000 of income. That is the rate on your next dollar earned, combining federal and regional rates.
Is Iowa a high-tax state in 2026?
At $40,000 it ranks 20th lowest of 51. The cheapest is Alaska at $5,680, the most expensive New York at $8,495.