Iowa Income Tax Calculator
Estimate your Iowa income tax burden
Updated for 2024 tax year on Dec 19, 2024
Calculate your income tax in these states
How to calculate your Iowa income taxes
Table of Contents
Understanding your Iowa income taxes
Iowa’s income tax system is designed to be progressive, aiming to distribute the tax burden fairly among the residents. The tax rate ranges from 0.33% to 8.53% distributed across nine tax brackets.
State payroll taxes in Iowa consist of Unemployment Insurance Tax, which employers pay based on their experience rating, and the Employee’s Withholding Tax, which is withheld from employees’ wages and remitted to the state.
Additionally, there is a school district surtax in the state. The rate of the surtax isn’t a fixed percentage of income but is a percentage of the state income tax owed by the resident. For instance, if the surtax rate was set at 10%, a resident who owes $1,000 in state income tax would owe an additional $100 for the school district surtax.
When it comes to deductions and exemptions, Iowa allows a standard deduction of $2,080 for single filers and $5,120 for joint filers in the 2023 tax year. Exemptions are also given based on age, filing status, and income, ensuring tax relief for lower-income individuals and families.
Calculate your income tax in Iowa
- Work out your total federal income tax
- Gross income adjusted
Gross income − Pre-tax deductions = Gross income adjusted - Federal taxable income
Gross income adjusted − Federal standard/itemized deductions = Federal taxable income - Federal income tax liability
Federal taxable income × Federal income tax rate = Federal income tax liability - Federal payroll tax liability
Gross income × Federal payroll tax rate = Federal payroll tax liability
- Gross income adjusted
- Calculate your total Iowa state income tax
- Iowa state taxable income
Gross income adjusted − (Iowa state standard/itemized deductions + Iowa state exemptions) = Iowa state taxable income - Iowa state income tax liability
Iowa state taxable income × Iowa state income tax rate = Iowa state income tax liability
- Iowa state taxable income
- Derive your Iowa local income tax
(Gross income adjusted or Iowa state taxable income) × Iowa local income tax rate = Iowa local income tax liability - Add up all the taxes
Federal income tax liability + Federal payroll tax liability + Iowa state income tax liability + Iowa local income tax liability = Your total income tax liability
State income tax brackets
Each filer type has different progressive tax rates. Refer to Tax Foundation for more details.
| Tax year | Filing status | Taxable income | Rate |
|---|---|---|---|
| 2024 | Single Married, Filing Separately Head of Household |
$0 - $6,210 | 4.40% |
| $6,210 - $31,050 | 4.82% | ||
| $31,050+ | 5.70% | ||
| Married, Filing Jointly or Widow(er) | $0 - $12,420 | 4.40% | |
| $12,420 - $62,100 | 4.82% | ||
| $62,100+ | 5.70% | ||
| 2023 | Single Married, Filing Separately Head of Household |
$0 - $6,000 | 4.40% |
| $6,000 - $30,000 | 4.82% | ||
| $30,000 - $75,000 | 5.70% | ||
| $75,000+ | 6.00% | ||
| Married, Filing Jointly or Widow(er) | $0 - $12,000 | 4.40% | |
| $12,000 - $60,000 | 4.82% | ||
| $60,000 - $150,000 | 5.70% | ||
| $150,000+ | 6.00% | ||
| 2022 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 – $1,743 | 0.33% |
| $1,743 – $3,486 | 0.67% | ||
| $3,486 – $6,972 | 2.25% | ||
| $6,972 – $15,687 | 4.14% | ||
| $15,687 – $26,145 | 5.63% | ||
| $26,145 – $34,860 | 5.96% | ||
| $34,860 – $52,290 | 6.25% | ||
| $52,290 – $78,435 | 7.44% | ||
| $78,435+ | 8.53% | ||
| 2021 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 – $1,676 | 0.33% |
| $1,676 – $3,352 | 0.67% | ||
| $3,352 – $6,704 | 2.25% | ||
| $6,704 – $15,084 | 4.14% | ||
| $15,084 – $25,140 | 5.63% | ||
| $25,140 – $33,520 | 5.96% | ||
| $33,520 – $50,280 | 6.25% | ||
| $50,280 – $75,420 | 7.44% | ||
| $75,420+ | 8.53% | ||
| 2020 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 - $1,666 | 0.33% |
| $1,666 - $3,332 | 0.67% | ||
| $3,332 - $6,664 | 2.25% | ||
| $6,664 - $14,994 | 4.14% | ||
| $14,994 - $24,990 | 5.63% | ||
| $24,990 - $33,320 | 5.96% | ||
| $33,320 - $49,980 | 6.25% | ||
| $49,980 - $74,970 | 7.44% | ||
| $74,970+ | 8.53% |
Local income tax
County
| Tax year | County | Rate |
|---|---|---|
| 2023 2022 2021 2020 |
Appanoose | 1% |
School district
School District Surtaxes are based on Iowa tax liability. If your Iowa tax liability is $1,000, and your school district surtax is 15%, you would pay an additional $150.
| Tax year | Reference |
|---|---|
| 2023 | Download PDF |
| 2022 | Download PDF |
| 2021 | Download PDF |
| 2020 | Download PDF |
State standard deduction
| Tax year | Filing status | Standard deduction amount |
|---|---|---|
| 2024 2023 |
Single Married, Filing Separately Married, Filing Jointly Head of Household |
$0 |
| 2022 | Single Married, Filing Separately |
$2,210 |
| Married, Filing Jointly Head of Household |
$5,450 | |
| 2021 | Single Married, Filing Separately |
$2,130 |
| Married, Filing Jointly Head of Household |
$5,240 | |
| 2020 | Single Married, Filing Separately |
$2,080 |
| Married, Filing Jointly Head of Household |
$5,120 |
State exemptions
There is state-level exemptions for all type of filers and dependents. All exemptions are in the form of tax credits. Refer to Tax Foundation for more details.
FAQs
How to calculate income tax in Iowa?
Follow the steps below to calculate your total income tax in Iowa:
- Work out your total federal income tax
- Calculate your total Iowa state income tax
- Derive your Iowa local income tax
- Sum up all the taxes
How much income tax do I pay in Iowa?
In 2024, the state income tax in Iowa ranges from 4.4% to 5.7%. Some counties and school districts also have a local income tax.