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Your questions · Idaho

3 Best Registered Agents in Idaho (2026), Answered

Who should you hire in Idaho for registered agents in 2026: we say ID Registered Agent.org ($99 a year), Idaho Registered Agent.co ($99 a year) and Mainstay Filing ($149 a year), ranked best first. Year one runs $99 to $149, and three years total $297 to $447.
By the LLC Answered editorial team

Answer in four lines

Short reply
Mandatory here?
Yes, it is required
What the law calls it
Registered agent
Service price
$99 to $149 on a yearly basis
Our ranking
ID Registered Agent.org, Idaho Registered Agent.co then Mainstay Filing

Our Idaho picks, best first

Why this order? How we decide explains.

#1 Hire first

1. ID Registered Agent.org: best for LLCs that never leave the state

Annual price $99; renewal price $99

Why ID Registered Agent.org? Simply put, a company that never leaves Idaho pays $297 over three years.

Of the two, it has the lower three-year cost, which is what we weigh first.

What is bundled

  • Registered office address
  • Legal mail scanned

Pluses

  • $99 annually
  • Under Mainstay Filing on yearly price

Downsides

  • Idaho only
  • The annual report is yours to file
#2 For Idaho

2. Idaho Registered Agent.co: best for a second in-state option

Annual price $99; renewal price $99

Idaho Registered Agent.co is number 2, because a company that never leaves Idaho pays $297 over three years.

ID Registered Agent.org charges the same, which makes this a near tie.

What is bundled

  • Registered office address
  • Legal mail scanned

Pluses

  • $99 annually
  • Under Mainstay Filing on yearly price

Downsides

  • Idaho only
  • The annual report is yours to file
#3 Works nationwide

3. Mainstay Filing: best for multi-state companies

Annual price $149; renewal price $149

In third spot, Mainstay Filing, as its fee does not vary by state: $149 a year, and $149 on renewal.

Three years here run $150 above ID Registered Agent.org.

What is bundled

  • Registered office on file with the state
  • Three government mailings a year, scanned at no charge
  • Works for corporations, LPs, LLPs and nonprofits as well as LLCs

Pluses

  • A single account for any state
  • $149 annually

Downsides

  • ID Registered Agent.org is $50 a year less
  • Report filing needs the formation package

Compared in a table

#CompanyYear 1Renews atCost over 3 yearsIncluded
1 ID Registered Agent.org $99$99/yr$297registered office address; legal mail scanned View ID Registered Agent.org plans Partner link. We may earn money if you buy.
2 Idaho Registered Agent.co $99$99/yr$297registered office address; legal mail scanned View Idaho Registered Agent.co plans Partner link. We may earn money if you buy.
3 Mainstay Filing $149$149/yr$447registered office on file with the state; three government mailings a year, scanned at no charge; Works for corporations, LPs, LLPs and nonprofits as well as LLCs View Mainstay Filing plans Partner link. We may earn money if you buy.

Prices as of November 13, 2026. The state's own fees are in the checklist below.

Your questions, answered

Is naming a registered agent a legal duty?

Every LLC must name a registered agent with an in-state street address.

Governing law: Idaho Code § 30-21-404. legislature.idaho.gov, last confirmed October 2026, official site

Who may serve as the agent?

An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve.

Qualified owners can skip paying for an agent.

What is the price of agent service?

About $99 to $149 per year, and $297 to $447 for three.

Whoever you name, the state fees stay the same.

What is the agent's function?

It serves as the LLC's Idaho mailing point for court papers and state letters.

The goal is that nothing important sits unnoticed while you are away. More about service of process

Are there yearly state charges?

One filing repeats, the annual report, each year, free of charge. In the state's words it is due last day of the entity's anniversary month, which is easy to forget.

legislature.idaho.gov, last confirmed October 2026, official site

How did you rank them?

ID Registered Agent.org is strongest on three-year price, which counts 36% in our ranking.

65% of the score comes from three-year price and paperwork covered.

You keep $150 over three years by choosing ID Registered Agent.org instead of Mainstay Filing.

Our method in full

Idaho: the requirements, cited

RequirementAmount or ruleProof
Fee at filing $100legislature.idaho.gov, last confirmed October 2026, official site
Registered agent Yes, it is requiredlegislature.idaho.gov, last confirmed October 2026, official site
Annual report No feelegislature.idaho.gov, last confirmed October 2026, official site
State fees, first three years $100Computed from the rows

How the total works: filing + report in year two + report in year three + any minimum tax. Open-ended costs are mentioned in the text only.

Short Q&A

Do I have to pay an agent?

Yes, when you qualify under the state's rule; privacy is the usual reason to pay for a service anyway.

What is the address rule?

The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted.

How do the three-year totals compare?

ID Registered Agent.org runs $297, Idaho Registered Agent.co runs $297, Mainstay Filing runs $447

Where are these numbers from?

We link each state fee to its official page and take service prices from the company sites, dated.

Do I need outside help?

Not at all. Owners can file with the state directly; a service is there to save you the work and to act as agent.

Which one do you pick in Idaho?

ID Registered Agent.org leads because one state, $99 a year, $99 once renewed; Idaho Registered Agent.co and Mainstay Filing come next.

More to read

What backs this page

  1. Idaho yearly filing: Annual report, per legislature.idaho.gov, October 2026
  2. Idaho Code § 30-25-201, per legislature.idaho.gov, August 2026
  3. Idaho formation fee: Filing fee, per sos.idaho.gov, October 2026
  4. Idaho formation fee: Filing fee, per legislature.idaho.gov, October 2026
  5. Idaho registered agent statute, per legislature.idaho.gov, October 2026
  6. November 13, 2026 price read: ID Registered Agent.org pricing page
  7. November 13, 2026 price read: Idaho Registered Agent.co pricing page
  8. November 13, 2026 price read: Mainstay Filing Idaho service page