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Biz Formation Academy

A plain textbook on LLC paperwork, one state per chapter.

Chapter 2 · Idaho

Idaho Registered Agent Chapter (2026): 6 Sections and the 3 Best Agents

Summary for 2026: to handle appointing a registered agent in Idaho with outside help, choose among ID Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Idaho Registered Agent.co ($99 a year), in that order. Section 1 states the Idaho rule on a registered agent; the other sections apply it, 6 in all.
Written by the Biz Formation Academy editorial board

Key points

Required by law Yes legislature.idaho.gov, as published October 2026
Yearly cost of the recommended agents $99 to $149 a year Published prices
Annual report No fee legislature.idaho.gov, as published October 2026
Sections 6 First to last

After this chapter you will understand

  • The Idaho agent rule
  • The address and eligibility rules
  • How to name or replace the agent
  • How the recommended agents compare

The Idaho shortlist

The editorial board's five criteria are explained on how we grade and determine the order.

1. ID Registered Agent.org: best for owners watching costs

Best overall
$99 per year (renewal $99)

In Idaho, ID Registered Agent.org heads the list: a plan for one state: $99 a year, renewing at $99.

Cost breaks the tie: three years here total less than at Mainstay Filing.

Price covers

  • An office address within the state
  • Served papers are scanned into an account

Advantages

  • Less per year than Mainstay Filing
  • Price $99; renews at $99

Limitations

  • Serves Idaho alone
  • Filing the annual report is not part of its service
Visit ID Registered Agent.org Partner link. We may earn money if you buy.

2. Mainstay Filing: best for companies in several states

Upkeep included
$149 per year (renewal $149)

Entry number 2 is Mainstay Filing, where $149 yearly is the agent price in all fifty states.

Across three years it trails ID Registered Agent.org by $150.

Price covers

  • An office address inside the state
  • Any papers served on the company get scanned for you at no cost
  • Three government mailings a year are scanned at no cost to you
  • Also serves nonprofits, corporations, LPs and LLPs

Advantages

  • $149 per year
  • Valid in every state

Limitations

  • $50 more annually than the local choice
  • This plan does not file reports
Visit Mainstay Filing Partner link. We may earn money if you buy.

3. Idaho Registered Agent.co: best for another local choice

Local option
$99 per year (renewal $99)

Third place is held by Idaho Registered Agent.co, since a plan for one state: $99 a year, renewing at $99.

It charges exactly what ID Registered Agent.org charges.

Price covers

  • An office address within the state
  • Served papers are scanned into an account

Advantages

  • Price $99; renews at $99
  • Less per year than Mainstay Filing

Limitations

  • Serves Idaho alone
  • Filing the annual report is not part of its service
Visit Idaho Registered Agent.co Partner link. We may earn money if you buy.

All prices in one table

#ServiceAnnual priceRenewal priceThree-year total
1 ID Registered Agent.org $99$99/yr$297 Visit ID Registered Agent.org Partner link. We may earn money if you buy.
2 Mainstay Filing $149$149/yr$447 Visit Mainstay Filing Partner link. We may earn money if you buy.
3 Idaho Registered Agent.co $99$99/yr$297 Visit Idaho Registered Agent.co Partner link. We may earn money if you buy.

Prices come from each company's own site, consulted November 13, 2026. No agent changes the state fees.

The chapter, section by section

  1. Section 1

    Begin with the legal rule

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

    Reference: legislature.idaho.gov, as published October 2026

  2. Section 2

    Who may take the role

    An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve. Authority: Idaho Code § 30-21-404.

  3. Section 3

    Meet the address requirement

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

    The public record shows the service's address.

  4. Section 4

    Self-service compared with a professional agent

    Professional agents among the recommended services charge $99 to $149 a year; serving personally is available to those who qualify.

  5. Section 5

    File the appointment

    For a newly formed Idaho LLC, the Certificate of Organization Limited Liability Company identifies the agent. A switch afterward is filed on its own with the Idaho Secretary of State.

    Reference: legislature.idaho.gov, as published October 2026

  6. Section 6

    Update the record when facts change

    Idaho keeps the agent's details current through the annual report (no fee, every year, due last day of the entity's anniversary month); mail about it arrives at the registered agent.

    Reference: legislature.idaho.gov, as published October 2026

The price list

Line itemPayeePrice
Hiring an agent Your chosen service$99 to $149 a year
Renewal Your chosen service$99 to $149 a year
Annual report Filing officeNo fee

The three-year state row is computed as the filing fee, plus the report in each of years two and three, plus any yearly minimum tax. Service fees have their own rows.

Why ID Registered Agent.org is first

The deciding criterion was tuition over three years, which carries 34% of the ranking.

ID Registered Agent.org leads the cost criterion at $297 across three years, with Mainstay Filing $150 behind.

Idaho questions

Does Idaho require an LLC to have a registered agent?

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

Can I be my own registered agent?

An owner may serve if eligible; the tests are in sections 2 and 3.

Can I change my registered agent later?

Change it whenever needed through the Idaho Secretary of State, as section 5 describes.

What does a registered agent cost in Idaho?

Across the ranked agents the yearly price is $99 to $149.

What does the LLC pay the state each year?

Owners submit the annual report without any charge.

Which registered agent would you choose?

ID Registered Agent.org, Mainstay Filing and Idaho Registered Agent.co, from the highest ranking to the lowest.

Related chapters

Bibliography and primary texts

  1. Cited for Idaho yearly filing: Annual report: due date, official: legislature.idaho.gov, edition of October 2026.
  2. Cited for Idaho Code § 30-25-201: legislature.idaho.gov, edition of August 2026.
  3. Cited for Idaho formation fee: Filing fee, official source: sos.idaho.gov, edition of October 2026.
  4. Cited for Idaho formation fee: Filing fee, official source: legislature.idaho.gov, edition of October 2026.
  5. Cited for Idaho registered agent statute: legislature.idaho.gov, edition of October 2026.
  6. ID Registered Agent.org, pricing page: consulted November 13, 2026
  7. Mainstay Filing, Idaho service page: consulted November 13, 2026
  8. Idaho Registered Agent.co, pricing page: consulted November 13, 2026