Idaho Sales Tax Permit Cost (2026)
Registering for a sales-tax permit (seller's permit) in Idaho is free. Free seller's permit, registered through Idaho's TAP portal. You'll need it before you can legally collect sales tax from customers.
Verified July 2026 from official sources. How we verify fees.
What it costs in Idaho
- Registration fee: Free
- Renewal: No renewal (perpetual)
- Resale certificate: free / self-issued
- Also needed: an EIN (free from the IRS) and usually a registered business
How it works
You register through the Idaho Department of Revenue, usually online, and receive your permit (often the same day). Free seller's permit, registered through Idaho's TAP portal. A sales-tax permit is separate from forming the business itself — see our Idaho LLC and DBA cost pages for those fees.
Frequently asked questions
How much is a sales tax permit in Idaho?
It's free to register for a seller's permit in Idaho.
Do I need a sales tax permit in Idaho?
Yes, if you sell taxable goods or services in Idaho — you must register before collecting any sales tax from customers.
Does a Idaho sales tax permit expire?
Renewal: no renewal (perpetual).