In 2026, we rank Mainstay Filing ($199), Idaho Registered Agent.co ($199) and ID Registered Agent.org ($199), in that order, as the LLC formation services for Idaho. All of the picks pay $100 to the state; three years of service costs $397 to $597.
By the LLC Answered editorial team
The brief reply
Short reply
State fee to file
$100, at filing
Every year after
A no-fee report
Registered agent
Must be named
Hire in this order
Mainstay Filing, Idaho Registered Agent.co then ID Registered Agent.org
Idaho: our answer
Prices are from each company's own pricing. See how we decide.
#1Number 1
1. Mainstay Filing: best for knowing next year's bill ahead of time
Annual price $199, renewal price $199; state fee extra
Why Mainstay Filing? Simply put, for $199 a year the formation, the registered agent and the annual report all get handled.
Across three years it costs $200 above Idaho Registered Agent.co, and in exchange you hand off more filings.
It also takes care of the free annual report.
What is bundled
The LLC formation itself
Registered agent the whole year
Annual report prepared and filed
We mean the EIN: applied for
State fee passed through, no markup
Pluses
Renewal stays $199
Applies for your EIN
$199 annually, all in
Downsides
Renews $100 higher than Idaho Registered Agent.co
#2Idaho choice
2. Idaho Registered Agent.co: best for holding down three-year cost
$199 to form, $99 each year after
In second spot, Idaho Registered Agent.co, as $199 gets the LLC formed, and the agent renews yearly at $99.
Responsibility for the annual report rests with you.
What is bundled
Idaho formation filing
Agent for year one
Pluses
Year one of agent service is part of the price
Low $99 renewal
$199 to form
Downsides
The annual report is yours to file
EIN not included ($99)
#3Idaho choice
3. ID Registered Agent.org: best for another local choice
$199 to form, $99 each year after
In third spot, ID Registered Agent.org, as $199 gets the LLC formed, and the agent renews yearly at $99.
Responsibility for the annual report rests with you.
Price for price it ties Idaho Registered Agent.co.
What is bundled
Idaho formation filing
Agent for year one
Pluses
Year one of agent service is part of the price
Low $99 renewal
$199 to form
Downsides
The annual report is yours to file
EIN not included ($99)
Prices side by side
#
Who
Year 1
Renews at
Three-year cost
Price buys
1
Mainstay Filing
$199
$199/yr
$597
The LLC formation itself; registered agent the whole year; annual report prepared and filed
Stay current on the annual report, filed every year at no cost. The state gives the due date as last day of the entity's anniversary month; do not miss it.
Every figure above links to its official source; the last line is our own addition of the filing, two reports and any minimum tax, with variable costs such as publication left out.