Idaho variant. This is a Idaho-specific version of the Income Tax Calculator, using pre-defined local figures (tax rates, median home and income values, and typical regional costs). For the full formula, methodology, and FAQ, open the main Income Tax Calculator.
Idaho income tax (Flat 5.695% as of 2024) stacks on top of federal tax. Understanding both layers is essential to estimating your total Idaho tax bill.
Idaho state income tax structure
Idaho taxes income at Flat 5.695% as of 2024, with a top marginal rate of 5.695%. Like the federal system, only income within each bracket is taxed at that bracket's rate.
Federal brackets (10%–37%) apply nationwide. Combine your federal effective rate with the Idaho rate to find your true marginal tax on the next dollar earned.
About taxes and housing in Idaho
Idaho applies a single flat income tax rate to taxable income.
Idaho has relatively low property taxes and offers a homeowner's exemption that reduces the taxable value of an owner-occupied home.
Idaho's economy is fueled by agriculture, technology, and one of the fastest population growth rates in the country.
Worked example: state tax on $74,636
Using the 5.695% top rate as a ceiling, state income tax on $74,636 is at most about $4,251; the actual figure is lower after brackets and deductions.
Quick reference
- State income tax: Flat 5.695% as of 2024
- State sales tax: 6% (plus 0.03% avg local)
- Median home value: $460,000
- Median household income: $74,636
- Effective property tax rate: 0.55%
- Avg auto insurance: $1,094/yr
Frequently Asked Questions
Does Idaho have state income tax?
Yes - Flat 5.695% as of 2024, topping out at 5.695%.
What is the top tax rate in Idaho?
The top marginal state rate is 5.695%.