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How to start an LLC in Idaho: checklist (2026)
To start an LLC in Idaho, file the Certificate of Organization Limited Liability Company with the Idaho Secretary of State for $100, name a registered agent, get a free EIN and check your local licenses. Mainstay Filing, our best overall pick, does the filing, the agent, the EIN application and the report for $199 a year.
- Official sources, checked October 20, 2026
Idaho checklist
- File the formation document. Certificate of Organization Limited Liability Company, Idaho Secretary of State, $100.
- Name a registered agent. Required. An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve.
- Get an EIN. Free from the IRS online.
- Check licenses. Idaho Business Wizard (business.idaho.gov) says: “Idaho does not have a state business license.” (no general state business license).
- Keep it current. Annual Report, yearly: no state fee, due last day of the entity's anniversary month.
Mainstay Filing
$199 / year, same at renewal
- LLC formation, prepared and filed
- Registered agent, all year
- EIN application (with an SSN or ITIN)
- Annual report filed every year it is due where the state requires one
- Compliance reminders and stored documents
Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.
Questions
How much does it cost to start an LLC in Idaho?
The state filing fee is $100 for the Certificate of Organization Limited Liability Company. The first Annual Report later costs no state fee.
Do I need a registered agent in Idaho?
Every LLC must name a registered agent with an in-state street address.
Do I need a business license in Idaho?
Idaho Business Wizard (business.idaho.gov) says: “Idaho does not have a state business license.” (no general state business license).
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
- Idaho Secretary of State: sos.idaho.gov/, checked October 20, 2026
- IRS: Get an employer identification number: www.irs.gov/businesses/small-businesses-self-employed/get-an-employer-identification-number, checked October 21, 2026
- Idaho Business Wizard (business.idaho.gov) (business license statement): business.idaho.gov/licenses/, checked October 21, 2026