3 Best LLC Services in Idaho (2026): Who to Ask First
In Idaho for 2026, our answer on LLC formation services is Mainstay Filing ($199), ID Registered Agent.org ($199) and Idaho Registered Agent.co ($199), ranked from first to last. Whichever you pick, expect $100 at the state and $397 to $597 in service fees over three years.
Answered by the Ask About LLC editorial team ·
Four quick answers
What does the state charge?
$100, one time
What comes after?
Report is free to file
Registered agent
Yes, the law says so
Who to ask
Mainstay Filing, ID Registered Agent.org then Idaho Registered Agent.co
Our Idaho answer, best first
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. Mainstay Filing: best for not filing the annual report yourself
$199 a year plus $100 for the state
Mainstay Filing is the one to ask first in Idaho because the annual report is filed for you inside the $199 yearly price, along with formation and the registered agent.
Is it the smallest bill? No: ID Registered Agent.org is $200 less over three years, and the difference pays for more of the paperwork.
Add the annual report to the pile it handles; there is no state fee.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Questions people also ask
How long does the state take?
About 7 to 10 days.
Is the EIN application included?
Only Mainstay Filing covers it at no added cost. At the others, ID Registered Agent.org bills $99 and Idaho Registered Agent.co bills $99.
How do the three-year totals compare?
Three-year totals: Mainstay Filing $597, ID Registered Agent.org $397, Idaho Registered Agent.co $397, with state fees on top.
Are the fees official?
State fees come from Idaho's official documents, and service fees come from each company's own pricing page. Both carry dates on this page.
Do I have to use a service?
Not at all. The state takes filings from owners directly. A service just saves you time, and it can double as your agent.
Who should I ask first about a LLC service in Idaho?
Mainstay Filing comes first: for $199 a year the formation, the registered agent and the annual report are all taken care of. Next are ID Registered Agent.org and Idaho Registered Agent.co.
Where did we look this up?
Ask-about note for Idaho yearly filing: Annual report: the state publishes it at legislature.idaho.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Idaho Code § 30-25-201: the state publishes it at legislature.idaho.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Idaho formation fee: Filing fee: the state publishes it at sos.idaho.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Idaho formation fee: Filing fee: the state publishes it at legislature.idaho.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Idaho registered agent statute: the state publishes it at legislature.idaho.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Processing, official source: the state publishes it at sos.idaho.gov, confirmed October 2026, so you can look it up yourself
The Mainstay Filing Idaho service page, as it stood on November 13, 2026
The ID Registered Agent.org pricing page, as it stood on November 13, 2026
The Idaho Registered Agent.co pricing page, as it stood on November 13, 2026