The state tax in Idaho comes down to a few main pieces: a flat 5.3% individual income tax, a 6% statewide sales tax, locally administered property taxes, and excise taxes on fuel and tobacco. Idaho does not charge an estate tax or an inheritance tax. A handful of credits and deductions can lower what you actually pay, especially on groceries, in-state capital gains, and your primary residence.
Idaho Income Tax
Idaho taxes individual income at a flat 5.3%.1Idaho State Legislature. Idaho Code Title 63 Chapter 30 Section 63-3024 – Individuals Tax and Tax Rate The rate kicks in after the first $2,500 of taxable income for single filers and the first $5,000 for married couples filing jointly; income below those amounts is not taxed at the state level. The same 5.3% applies to trusts and estates.
Idaho generally conforms to the federal tax code, so the state standard deduction matches the federal amount. For tax year 2026, that is $16,100 for single filers and $32,200 for married couples filing jointly.2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 You generally have to file an Idaho return if your gross income exceeds the standard deduction for your filing status.3Idaho State Tax Commission. Individual Income Tax Instructions Personal exemptions and dependent credits can lower the final bill further.
Food Tax Credit
Idaho charges the full 6% sales tax on groceries and offsets some of that through the food tax credit, formerly called the grocery credit. For most residents, the credit averages $155 per person. If you keep your grocery receipts showing the sales tax paid on food, you can claim up to $250 per person instead.4Idaho State Tax Commission. Idaho Food Tax Credit Starting with the 2025 tax year, residents 65 and older receive the same credit as younger filers; the small senior bonus is gone.5State Tax Commission. Idaho Food Tax Credit You can claim it even if your income is low enough that you wouldn’t otherwise have to file.
Capital Gains Deduction
Idaho lets you deduct 60% of the net capital gain from the sale of qualifying in-state property.6Idaho State Legislature. Idaho Code Title 63 Chapter 30 Section 63-3022H – Deduction of Capital Gains Stocks, bonds, and other intangible investments do not qualify. Only property with an Idaho location at the time of sale counts, including:
- Real property (land or buildings) held at least 12 months
- Tangible business equipment used in an Idaho revenue-producing enterprise for at least 12 months
- Cattle and horses held for breeding or other qualifying purposes for at least 24 months, or other breeding livestock held at least 12 months
- Timber grown in Idaho and held at least 24 months
- Certain partnership interests held at least 12 months, limited to gain attributable to qualifying real property held by the partnership
The deduction cannot exceed your total net capital gain on your federal return, so losses from qualifying property reduce what you can deduct. For anyone selling a farm, ranch, or Idaho business assets, this provision can substantially lower the state tax.
Idaho Sales Tax
Idaho charges a flat 6% sales tax statewide, with no additional local sales taxes stacked on top.7Idaho State Tax Commission. Sales and Use Taxes Basics Guide The tax covers most physical goods and reaches digital products with permanent usage rights, short-term lodging, prepared meals, event admissions, and some services such as assembly work.
Groceries are taxed at the same 6% rate, which is unusual among states with a sales tax; the food tax credit above is the state’s offset rather than an outright exemption. Prescription drugs and durable medical equipment bought with a prescription are exempt. Agricultural supplies and goods purchased for resale also fall outside the tax.
Property Taxes
Property taxes in Idaho are set and collected locally by counties, cities, and school districts, so rates vary across the state. The revenue funds schools, law enforcement, roads, and other community services. The state itself does not collect property tax, but it runs two programs that reduce what homeowners owe.
Homeowner’s Exemption
If you own and occupy a home as your primary residence, the homeowner’s exemption shields 50% of the home’s value, up to a maximum of $125,000, from property tax.8Idaho State Tax Commission. Homeowner’s Exemption It covers the home and up to one acre of land. Once approved it applies automatically, but you generally need to apply through your county assessor’s office during your first year of ownership or occupancy.
Property Tax Reduction (Circuit Breaker)
The Property Tax Reduction program can cut your bill on your primary residence and up to one acre by $250 to $1,500. For 2026, your total 2025 household income, after subtracting medical expenses, must be $39,130 or less. You also have to meet at least one of these: age 65 or older, blind, widowed, disabled, a former prisoner of war or hostage, or a parentless child under 18.9Idaho State Tax Commission. Property Tax Reduction Your home must already carry the homeowner’s exemption. Applications are accepted only between January 1 and April 15. Miss that window and you wait a full year.
Corporate Income Tax
C corporations pay Idaho corporate income tax at the same 5.3% flat rate that applies to individuals.1Idaho State Legislature. Idaho Code Title 63 Chapter 30 Section 63-3024 – Individuals Tax and Tax Rate Pass-through entities like S corporations, partnerships, and LLCs generally don’t pay at the entity level; the income flows through to the owners and is taxed at their personal rate.
Fuel and Tobacco Excise Taxes
Idaho’s gasoline excise tax is $0.32 per gallon, a rate in place since July 2015.10Idaho State Tax Commission. Fuel Distributors Tax Rate It applies to gasoline, gasohol, ethanol blends, and methanol. Revenue mainly funds road construction and maintenance.
Cigarettes carry an excise tax of $0.57 per pack of 20.11Idaho State Tax Commission. Cigarette Tax Rate Other tobacco products, including chewing tobacco and snuff, are taxed at 40% of the wholesale sales price. Idaho’s cigarette tax is among the lowest in the country.
No Estate or Inheritance Tax
Idaho does not have a state estate tax or an inheritance tax. Heirs and beneficiaries owe the state nothing on inherited property or assets. Federal estate tax still applies to very large estates, with a 2026 federal exemption of $13.99 million per individual, a threshold that reaches very few Idaho families.2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 If you inherit from someone who lived in a state that does impose an inheritance tax, that state’s rules can still reach you regardless of where you live.