Price Your LLCBudget for your LLC before you pay for it.
What a registered agent costs by state / Idaho
3 Best Registered Agents in Idaho (2026): What You Pay
For 2026, we would price out Mainstay Filing ($149/yr), ID Registered Agent.org ($99/yr) and Idaho Registered Agent.co ($99/yr), in that order, before any other Idaho registered agents. Year one costs $99 to $149 with these agents. Over three years, you are looking at $297 to $447.
Written by the Price Your LLC editorial team
↓ Ranked for you by:What you spend over three years counts 38%, and how much work the price takes off you counts 31%. Renewal change, break-even and price visibility make up the rest. How we rank
To find what you owe the state across three years, add the filing fee, two later reports and any minimum tax. We mention open-ended costs without putting a number on them.
Notes on the order
Mainstay Filing did better than ID Registered Agent.org on upkeep the price covers, a 31% factor.
If you ever expand, ID Registered Agent.org cannot follow you.
What Idaho requires of your registered agent (Idaho Secretary of State)
Every LLC must name a registered agent with an in-state street address.
An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve. (Idaho Code § 30-21-404)
The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted.