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Business Basics LabLLC paperwork, measured state by state.

Section 2 · Idaho

The Idaho Registered Agent (2026): 6 Procedures and the 3 Best Agents

Ranked by measured reading, the services for appointing a registered agent in Idaho in 2026 are Mainstay Filing ($149 a year), Idaho Registered Agent.co ($99 a year) and ID Registered Agent.org ($99 a year). 6 procedures document what Idaho requires of a registered agent, who may serve, which address passes and how the agent is recorded.

Recorded by the Business Basics Lab staff ·

Key facts

Mandatory?
YesReference legislature.idaho.gov, October 2026
What ranked services charge
$99 to $149 a yearPublished prices
Annual report
No feeReference legislature.idaho.gov, October 2026
Procedures
6Each one described

Aims of this sheet

  • What the law provides
  • The eligibility and address rules
  • How to name or change the agent
  • How the ranked agents compare

Best reading

Who we would engage in Idaho

Three-year cost and the number of procedures a price performs weigh the most; how we measure lists all five criteria.
Strongest result

1. Mainstay Filing: best for a nationwide agent at one price

Annual price $149; renewal $149

The sheet starts with Mainstay Filing, because a constant $149 a year regardless of the state of formation.

Three years run $150 higher than at Idaho Registered Agent.co, in exchange for more of the work being done.

What the price performs

  • A street address for the registered office
  • Papers served on the company are scanned free on the same business day
  • Three government letters a year are scanned at no charge
  • Also serves nonprofits, corporations, LPs and LLPs

Measured strengths

  • $149 annually
  • Valid in every state

Measured limits

  • Idaho Registered Agent.co costs $50 a year less
  • An agent-only plan that does not file reports
Visit Mainstay FilingPartner link. We may earn money if you buy.
Single-state plan

2. Idaho Registered Agent.co: best for a low yearly agent price

Annual price $99; renewal $99

Second: Idaho Registered Agent.co, since an in-state street address for the registered office, measured at $99 a year.

What the price performs

  • A physical Idaho address
  • Papers served on the company are scanned into the account

Measured strengths

  • A smaller yearly bill than Mainstay Filing
  • $99 a year with no increase

Measured limits

  • A single-state service
  • The annual report is left for the owner to complete
Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
Single-state plan

3. ID Registered Agent.org: best for a local alternative

Annual price $99; renewal $99

Third: ID Registered Agent.org, since an in-state street address for the registered office, measured at $99 a year.

Its prices equal Idaho Registered Agent.co's, so either is acceptable.

What the price performs

  • A physical Idaho address
  • Papers served on the company are scanned into the account

Measured strengths

  • $99 a year with no increase
  • A smaller yearly bill than Mainstay Filing

Measured limits

  • A single-state service
  • The annual report is left for the owner to complete
Visit ID Registered Agent.orgPartner link. We may earn money if you buy.

The Idaho results compared

#ServiceAnnual priceRenewal priceThree-year total
1Mainstay Filing$149$149/yr$447Visit Mainstay FilingPartner link. We may earn money if you buy.
2Idaho Registered Agent.co$99$99/yr$297Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
3ID Registered Agent.org$99$99/yr$297Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
Prices are recorded from each company's own site on November 13, 2026. Changing agent leaves state fees unchanged.

The procedures

  1. Procedure 1: Begin with the rule

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

    Specimen: Reference legislature.idaho.gov, October 2026

  2. Procedure 2: Eligible agents

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

  3. Procedure 3: Know the registered office rule

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

    TipEngaging a service keeps a home address out of the public record.

  4. Procedure 4: Settle who will be the agent

    A qualified owner can act as agent. Otherwise the ranked agents charge $99 to $149 a year.

  5. Procedure 5: Name the agent in the filing

    The Certificate of Organization Limited Liability Company carries the agent's name and address; the Idaho Secretary of State also receives change filings from LLCs that replace their agent.

    Specimen: Reference legislature.idaho.gov, October 2026

  6. Procedure 6: Update when details change

    Annually the annual report reconfirms the agent's details, by last day of the entity's anniversary month.

    Specimen: Reference legislature.idaho.gov, October 2026

What will be paid

ProcedureGoes toAmount
Agent serviceService$99 to $149 a year
Renewing the agentService$99 to $149 a year
Annual reportTo the stateNo fee
Figures paid to Idaho are its published fees, with the specimens listed beneath the table; each service row is that company's own price. The three-year state row sums the filing, the year-two report, the year-three report and any minimum tax.

Why Mainstay Filing comes first

Procedures the price performs accounts for 28% of the reading, and it is where pulled ahead in Idaho.

An agent usable in any state outscored Idaho Registered Agent.co's lower price.

Common questions

What does Idaho say about keeping a registered agent?

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

Can I be my own registered agent?

Often. Apply the two tests in procedures 2 and 3.

Can I change my registered agent later?

Yes; an existing LLC files a change with the Idaho Secretary of State, as procedure 5 shows.

What does a registered agent cost in Idaho?

The ranked agents charge $99 to $149 a year.

What does the LLC pay the state each year?

Chiefly the annual report, with no fee.

Which registered agent would you choose?

Mainstay Filing reads highest, Idaho Registered Agent.co and ID Registered Agent.org follow; Mainstay Filing leads on procedures the price performs.

See also

Specimens and records

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