Idaho Sales Tax Overview
As of 2026, Idaho has an average combined sales tax rate of 6.073%, with rates ranging from 6% to 9% depending on your specific location. The state's sales tax is administered by the Idaho State Tax Commission. Idaho has a relatively straightforward tax structure with limited local options. With 314 tracked jurisdictions, the actual rate you pay depends on a combination of state, county, and city-level taxes applied to your zip code.
The sales tax in Idaho is composed of multiple layers. The state sets a base rate that applies uniformly across all jurisdictions. On top of this, individual counties and cities may add their own surcharges. This layered system means that the rate you pay can vary significantly even within the same state. For example, the lowest rate in Idaho is 6% while the highest reaches 9% — a spread of 3%.
Idaho Tax Examples (Average Rate)
* Based on average rate of 6.073%. Actual tax depends on your zip code.
Top Jurisdictions in Idaho
Business Compliance in Idaho
Businesses operating in Idaho are required to register for a sales tax permit, collect the correct rate at the point of sale, and remit taxes on a regular filing schedule (monthly, quarterly, or annually depending on volume). Failure to collect and remit the correct amount can result in penalties, interest, and audit exposure from the state revenue department. If you sell online, be aware that economic nexus laws may also require collection in Idaho if your sales exceed certain thresholds.
Frequently Asked Questions
What is the average sales tax rate in Idaho?
The average combined sales tax rate in Idaho is 6.073% as of 2026. This includes state, county, and local taxes.
What is the highest sales tax rate in Idaho?
The highest combined sales tax rate in Idaho is 9% in SUN VALLEY (83353).
What is the lowest sales tax rate in Idaho?
The lowest combined sales tax rate in Idaho is 6% in BANNOCK (83201).
How many tax jurisdictions does Idaho have?
Idaho has 314 tracked tax jurisdictions in our database. Each jurisdiction may have a different combined rate due to varying county and city taxes.
Does Idaho charge sales tax on groceries?
Sales tax rules for groceries vary by state. In many states, unprepared food and grocery items are exempt or taxed at a reduced rate. Check with the Idaho revenue department for specific exemption details, as rules can change annually.
How do I calculate sales tax in Idaho?
To calculate sales tax in Idaho, look up your specific zip code to find the exact combined rate. Multiply the purchase price by that rate. For example, at the average rate of 6.073%, a $100 purchase would incur $6.07 in tax.