First LLC Guide › Idaho
Starting an LLC in Idaho: what you should know first
Filing a Idaho LLC costs $100. The Annual Report costs $0 a year. Our pick is Mainstay Filing; $697 covers three years.
By kind of owner
- Side hustle
- Quiet-year cost: $199 in year 2 with Mainstay Filing, including the $0 state report in that year.
- Online business
- Required registered agent. The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted.
- Startup
- Filing: Certificate of Organization Limited Liability Company with the Idaho Secretary of State. Write the operating agreement before you open the bank account.
- First-time owner
- Report due: Last day of the entity's anniversary month.
Questions
Best LLC formation service in Idaho for a first-time owner?
Mainstay Filing: $299 in year 1 including the $100 filing fee, $199 in year 2.
Sources
- Idaho Code § 30-25-201 (multira state research spine): legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-201/, checked August 12, 2026
- Idaho formation fee: Filing fee, official source read 2026-10-01: sos.idaho.gov/business-forms/, checked October 1, 2026
- Idaho formation fee: Filing fee, official source read 2026-10-01: legislature.idaho.gov/statutesrules/idstat/Title30/T30CH21/SECT30-21-214/, checked October 1, 2026
- Idaho yearly filing: Annual report: due date, official source read 2026-10-01: legislature.idaho.gov/statutesrules/idstat/title30/t30ch21/sect30-21-213/, checked October 1, 2026
- Idaho registered agent statute (Idaho Code § 30-21-404): legislature.idaho.gov/statutesrules/idstat/Title30/T30CH21/SECT30-21-404/, checked October 20, 2026