Idaho

Office of the Secretary of State - Business Services Division (registry says 'Commerical Division' [sic] - stale naming; the SOS site now says Business Services Division, and forms say Corporation Division)

Contact for business filings

Phone: (208) 334-2301
Fax: (208) 334-2847
Email: [email protected]
Mail filings to: Office of the Secretary of State, 450 N 4th Street, PO Box 83720, Boise, ID 83720-0080
Walk in: Idaho State Capitol, 700 W Jefferson, #E205, Boise, ID 83702 Capitol Office (NOT the filing office)
Contact form: sosidaho.justfoia.com/Forms/Launch/8c2cd1aa-6928-4650-8a13-84040018dedb

Filing facts

Form an LLC: $100 state fee
Register a foreign LLC: $100 state fee
LLC annual report: $0 state fee
Franchise tax: applies.
How you can file an LLC formation: onlineemailfaxmailwalk in
Every Idaho corporation and LLC must keep a registered agent with a street address in Idaho.

Fees are the statutory amounts on file as of 2026-08-04; the state may add processing or expedite charges.