Idaho Income Tax Calculator
Estimate your Idaho income tax burden
Updated for 2024 tax year on Jul 23, 2024
What was updated?
Fixed calculation error with federal and state payroll taxes
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How to calculate your Idaho income taxes
Table of Contents
Understanding your Idaho income taxes
Idaho’s state income tax system is progressive with seven tax brackets ranging from 1% to 6%.
While there’s no specific state payroll tax, employers in Idaho are required to contribute to the state’s unemployment insurance fund.
The state provides a standard deduction of $12,550 for single taxpayers and $25,100 for joint filers in 2023. There are no personal and dependent exemptions.
Calculate your income tax in Idaho
- 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 Idaho state income tax
- Idaho state taxable income
Gross income adjusted − Idaho state standard/itemized deductions = Idaho state taxable income - Idaho state income tax liability
Idaho state taxable income × Idaho state income tax rate = Idaho state income tax liability
- Idaho state taxable income
- Add up all the taxes
Federal income tax liability + Federal payroll tax liability + Idaho state 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 2023 |
Single Married, Filing Separately |
$0 - $4,489 | 0% |
| $4,489+ | 5.8% | ||
| Married, Filing Jointly or Widow(er) Head of Household |
$0 - $8,978 | 0% | |
| $8,978+ | 5.8% | ||
| 2022 | Single Married, Filing Separately |
$0 - $1,662 | 1% |
| $1,662 - $4,987 | 3% | ||
| $4,987 - $8,311 | 4.5% | ||
| $8,311+ | 6% | ||
| Married, Filing Jointly or Widow(er) Head of Household |
$0 - $3,324 | 1% | |
| $3,324 - $9,974 | 3% | ||
| $9,974 - $16,622 | 4.5% | ||
| $16,622+ | 6% | ||
| 2021 | Single Married, Filing Separately |
$0 – $1,588 | 1.1% |
| $1,588 - $4,763 | 3.1% | ||
| $4,763 - $6,351 | 4.5% | ||
| $6,351 - $7,939 | 5.5% | ||
| $7,939+ | 6.5% | ||
| Married, Filing Jointly or Widow(er) Head of Household |
$0 - $3,176 | 1.1% | |
| $3,176 - $9,526 | 3.1% | ||
| $9,526 - $12,702 | 4.5% | ||
| $12,702 - $15,878 | 5.5% | ||
| $15,878+ | 6.5% | ||
| 2020 | Single Married, Filing Separately |
$0 - $1,568 | 1.125% |
| $1,568 - $3,136 | 3.125% | ||
| $3,136 - $4,704 | 3.625% | ||
| $4,704 - $6,272 | 4.625% | ||
| $6,272 - $7,840 | 5.625% | ||
| $7,840 - $11,760 | 6.63% | ||
| $11,760+ | 6.925% | ||
| Married, Filing Jointly or Widow(er) Head of Household |
$0 - $3,136 | 1.125% | |
| $3,136 - $6,272 | 3.125% | ||
| $6,272 - $9,408 | 3.625% | ||
| $9,408 - $12,544 | 4.625% | ||
| $12,544 - $15,680 | 5.625% | ||
| $15,680 - $23,520 | 6.625% | ||
| $23,520+ | 6.925% |
State standard deduction
| Tax year | Filing status | Standard deduction amount |
|---|---|---|
| 2024 | Single Married, Filing Separately |
$14,600 |
| Married, Filing Jointly | $29,200 | |
| Head of Household | $21,900 | |
| 2023 | Single Married, Filing Separately |
$13,850 |
| Married, Filing Jointly | $27,700 | |
| Head of Household | $20,800 | |
| 2022 | Single Married, Filing Separately |
$12,950 |
| Married, Filing Jointly | $25,900 | |
| Head of Household | $19,400 | |
| 2021 | Single Married, Filing Separately |
$12,550 |
| Married, Filing Jointly | $25,100 | |
| Head of Household | $18,800 | |
| 2020 | Single Married, Filing Separately |
$12,200 |
| Married, Filing Jointly | $24,400 | |
| Head of Household | $18,350 |
FAQs
How to calculate income tax in Idaho?
Follow the steps below to calculate your total income tax in Idaho:
- Work out your total federal income tax
- Calculate your total Idaho state income tax
- Sum up all the taxes
How much income tax do I pay in Idaho?
In 2024, Idaho's residents will need to pay 0% to 5.8% income tax depending on the taxable income.