For entrepreneurs evaluating Idaho as a business location in 2026, the tax landscape is a key factor. With a state sales tax of 6% and potential local additions of up to 3%, the combined rate can reach 9.00%.
Economic Nexus in Idaho
Remote sellers must collect Idaho sales tax if they exceed $100,000 in annual sales within the state. This threshold has been in effect since 2019-06-01. Marketplace facilitators like Amazon and Etsy are also required to collect and remit tax on behalf of third-party sellers. The Idaho State Tax Commission enforces these provisions and provides registration guidance at https://tax.idaho.gov.
LLC Formation in Idaho (2026)
Forming an LLC in Idaho costs $100 for the initial filing. There is no annual franchise tax, keeping ongoing costs low. Idaho imposes a state income tax, which affects pass-through LLC taxation.
The process involves filing Articles of Organization with the Secretary of State, obtaining a federal EIN, and registering for applicable state tax accounts. You will also need a sales tax permit from the Idaho State Tax Commission.
Key Tax Rules
• Idaho has a 6% state sales tax rate.
• Local resort cities can add up to 3% additional tax.
• Groceries are taxed at the full state rate, unlike most states.
• Economic nexus threshold is $100,000 in annual sales.
Sales Tax Exemptions
The following categories are generally exempt from sales tax in Idaho: groceries (taxed at reduced rate), prescription drugs, medical devices. Businesses should maintain proper documentation for exempt transactions.