Idaho has a flat 5.30 percent individual income tax rate. Idaho has a flat 5.30 percent corporate income tax rate, a 6.00 percent state sales tax rate, and an average combined state and local sales tax rate of 6.03 percent. Idaho has a 0.50 percent effective property tax rate on owner-occupied housing value. Idaho does not have an estate tax or inheritance tax. Idaho’s gas tax is 33 cents per gallon, and its cigarette excise tax is $0.57 per pack of 20 cigarettes.
Idaho raises tax revenue primarily through general sales taxes (31.5 percent of total state and local tax revenue), property taxes (22.8 percent), and individual income taxes (21.8 percent). Idaho collects $5,012 in state and local tax collections per capita, carries $1,815 in state and local debt per capita, and has a 91 percent funded ratio of public pension plans. Idaho’s tax system ranks 9th overall on the 2026 State Tax Competitiveness Index.
Each state’s tax code is a multifaceted system with many moving parts, and Idaho is no exception. Use the tabs below to compare Idaho taxes with other states and to see how Idaho raises tax revenue. You can also browse our tax maps, which are compiled from our annual publication, Facts & Figures 2026: How Does Your State Compare?
Get facts about taxes in your state and around the US
The State Tax Competitiveness Index enables policymakers, taxpayers, and business leaders to gauge how their states’ tax systems compare. While there are many ways to show how much state governments collect in taxes, the Index evaluates how well states structure their tax systems and provides a road map for improvement.
122 min read
Facts & Figures serves as a one-stop state tax data resource that compares all 50 states on over 40 measures of tax rates, collections, burdens, and more.
2 min read
Individual income taxes are a major source of state government revenue, accounting for more than a third of state tax collections. How do income taxes compare in your state?
9 min read
Retail sales taxes are an essential part of most states’ revenue toolkits, responsible for nearly a quarter of combined state and local tax collections.
18 min read
Forty-four states levy a corporate income tax, with top rates ranging from a 2 percent flat rate in North Carolina to an 11.5 percent top marginal rate in New Jersey. Four states—Georgia, Nebraska, North Carolina, and Pennsylvania—reduced their corporate income tax rates effective January 1, 2026.
5 min read
Property taxes are the primary tool for financing local governments. While no taxpayers in high-tax jurisdictions will be celebrating their yearly payments, property taxes are largely rooted in the benefit principle of taxation: the people paying the property tax bills are most often the ones benefiting from the services.
9 min read
Property taxes are the primary tool for financing local government and generating state-level revenue in some states as well.
5 min read
As Idaho attempts to further solidify its position as a growth-oriented, taxpayer-friendly state this special session, other states should look to its example and pursue similar reforms.
6 min read
The mix of tax sources states choose can have important implications for both revenue stability and economic growth, and the many variations across states are indicative of the different ways states weigh competing policy goals.
29 min read
The FDA’s proposal to ban flavored cigars would carry significant revenue implications for many state governments.
7 min read
While many factors influence business location and investment decisions, sales taxes are something within policymakers’ control that can have immediate impacts.
12 min read
Idaho Ballot initiative would impose an incredibly high top marginal rate that would fall on many small businesses, not just high-income earners.
7 min read
Among the 46 states that held legislative sessions this year, structural state tax reform and temporary tax relief measures were recurring themes.
13 min read
If the policy goal of taxing cigarettes is to encourage cessation, vapor taxation must be considered a part of that policy design.
4 min read
Although the majority of state tax changes take effect at the start of the calendar year, some are implemented at the beginning of the fiscal year. Fourteen states have notable tax changes taking effect on July 1.
7 min read
The Kansas experience is so infamous that “what about Kansas?” is almost guaranteed to be a question—sometimes as a retort, but often a genuine expression of concern—any time any state explores tax relief. But what about the other two dozen states that have cut their income taxes since then?
6 min read
