Quick guide
Required by the state?
You must
Legal title
Registered agent
Price of an agent
$99 to $149 each twelve months
Recommended
Idaho Registered Agent.co, Mainstay Filing then ID Registered Agent.org
Our Idaho shortlist
The order follows our five checks : three-year cost first, then what the price covers.
#1
First recommendation
1. Idaho Registered Agent.co: best for holding three-year cost down
Annual price $99, renewal price $99
Why Idaho Registered Agent.co first? Because $99 a year, then $99 at renewal, fits an LLC that stays in Idaho.
Over three years you pay less here than at Mainstay Filing, and cost counts most in our ranking.
Checklist: what is included
An in-state street address Legal papers scanned to your account
What works
Beats Mainstay Filing on yearly cost Annual price $99; renewal price $99
Gaps
Not available outside the state Not included: the annual report
#2
Goes where you go
2. Mainstay Filing: best for one price in any state
Annual price $149, renewal price $149
In second place, Mainstay Filing, where $149 a year goes with the company when it adds a state.
Idaho Registered Agent.co is $150 lower across three years, which is enough to rank above it.
Checklist: what is included
An address of record in the state Three official mailings a year scanned at no charge Works for LLCs, corporations, LPs, LLPs and nonprofits
What works
Moves with the company Annual price $149; renewal price $149
Gaps
Higher yearly bill by $50 You still handle reports
#3
In-state option
3. ID Registered Agent.org: best for a second in-state option
Annual price $99, renewal price $99
ID Registered Agent.org is third, because $99 a year, then $99 at renewal, fits an LLC that stays in Idaho.
It charges the same as Idaho Registered Agent.co, so the order between them is a close call.
Checklist: what is included
An in-state street address Legal papers scanned to your account
What works
Annual price $99; renewal price $99 Beats Mainstay Filing on yearly cost
Gaps
Not available outside the state Not included: the annual report
Compare the picks
Company prices from November 13, 2026, before state fees.
What to know before you file
Do I have to list a registered agent on the filing?
Every LLC must name a registered agent with an in-state street address.
Can I name anyone?
An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve.
Qualified owners can skip the cost of an agent.
How much per year for an agent?
Yearly prices start at $99 to $149, and three years total $297 to $447.
The state bills the same amount with any agent.
What is the agent for?
When a lawsuit or a state letter reaches the LLC in Idaho, the agent receives it.
What will the state bill annually?
Expect the annual report to come back every year, free of charge. In the state's words it is due last day of the entity's anniversary month, so mark the date.
Why is the list in this order?
Total for three years, at 37%, puts Idaho Registered Agent.co first.
The two heavy checks are total for three years (37%) and filing jobs included (27%); three lighter checks follow.
Choose Idaho Registered Agent.co over Mainstay Filing and keep $150 across three years.
See the scoring
Idaho checklist, with sources
To check the three-year number, add the formation filing, the next two reports and any minimum tax; costs with no fixed price are not counted.
Terms to know for this guide
Registered agent The agent on file with the state, where court papers and government letters for your company are sent.
Service of process Delivery of a summons or complaint, which for an LLC happens at the agent's address.
Registered office Where legal papers are handed over: a real street address within the state.
Related questions
May I name myself as agent?
Usually. Check who qualifies and what address counts, and if you fit, do it yourself.
What type of address qualifies?
The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted.
Three years in, what has each cost?
$297 for Idaho Registered Agent.co, $447 for Mainstay Filing, $297 for ID Registered Agent.org
What are the numbers based on?
Official Idaho sources back the state side and company pricing backs the service side, all dated.
Is a service required by law?
If you meet the rules on this page, you can file on your own, and the state charges the same either way.
Which registered agent should I start with in Idaho?
Idaho Registered Agent.co comes first: you get an in-state agent for $99 a year. Next, Mainstay Filing and ID Registered Agent.org.
Verify these facts
Idaho yearly filing: Annual report: confirmed October 2026 using legislature.idaho.gov
Idaho Code § 30-25-201: confirmed August 2026 using legislature.idaho.gov
Idaho formation fee: Filing fee: confirmed October 2026 using sos.idaho.gov
Idaho formation fee: Filing fee: confirmed October 2026 using legislature.idaho.gov
Idaho registered agent statute: confirmed October 2026 using legislature.idaho.gov
pricing page from Idaho Registered Agent.co, checked November 13, 2026
Idaho service page from Mainstay Filing, checked November 13, 2026
pricing page from ID Registered Agent.org, checked November 13, 2026