1. Idaho LLC Overview
If you operate a business in Idaho, forming a local LLC offers liability protection without massive ongoing costs. The state makes compliance incredibly affordable.
- Reasonable formation fee — $100 to file a Certificate of Organization online
- Free annual report — $0 fee
- Flat income tax — 5.8% flat rate on personal income
2. Idaho LLC Requirements
- Name must contain "Limited Liability Company," "L.L.C.," or "LLC"
- Appoint a registered agent with an Idaho physical address
- File a Certificate of Organization with the Secretary of State ($100)
- File an Annual Report by the anniversary month each year ($0)
3. Idaho LLC Costs and Fees (2026)
| Cost Item | Amount | Notes |
|---|---|---|
| Certificate of Organization | $100 | Online filing fee |
| Annual Report | $0 | Due end of anniversary month |
| Registered Agent | $50–$150/year | Required ID physical address |
| EIN | Free | Apply at IRS.gov |
| Operating Agreement | $0–$1,000 | Recommended, not legally required |
4. How to Start an Idaho LLC (Step by Step)
- 1 Choose your LLC name (must include "Limited Liability Company" or "LLC")
- 2 Appoint a registered agent with an Idaho physical address
- 3 File a Certificate of Organization with the ID Secretary of State ($100)
- 4 Obtain an EIN from the IRS (free at IRS.gov)
- 5 Draft an Operating Agreement (not filed, but legally binding)
- 6 File the Annual Report by your anniversary month each year ($0 fee)
- 7 Open a business bank account
Free Doesn't Mean Optional
Even though the Idaho annual report is free, it is strictly required. If you fail to file the $0 report by the end of your anniversary month, your LLC will be administratively dissolved by the state.
5. Idaho Annual Report
Idaho LLCs must file an Annual Report online to maintain their active status.
- Due Date: Due by the end of your anniversary month (the month the LLC was formed).
- Fee: $0.
- Filing: Filed online via the Secretary of State's SOSBiz portal.
6. Idaho LLC Taxes (2026)
- State income tax — 5.8% flat rate on pass-through profits
- Federal income tax — Pass-through to personal return
- Self-employment tax — 15.3% on net earnings
- Sales tax — 6% state rate (Idaho has very few local additions)
7. Best For / Not Best For
Best For
- Entrepreneurs living and operating in Idaho
- Founders seeking a state with zero annual maintenance fees
Not Best For
- Out-of-state owners without Idaho nexus