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Kept simple · Idaho

3 Best LLC Services in Idaho (2026), Kept Simple

Mainstay Filing ($199), Idaho Registered Agent.co ($199) and ID Registered Agent.org ($199): our 2026 order for LLC formation services in Idaho. Every option pays Idaho $100. Three years of service run $397 to $597.
Charter Simple editors

At a glance

Filing fee
$100, paid once
Afterward
No fee for the report
Registered agent
Yes, it is required
Our pick
Mainstay Filing, Idaho Registered Agent.co then ID Registered Agent.org

Idaho: the order

The order follows five checks. Three-year cost comes first, then what the price covers. See method.
1 Ranked first

1. Mainstay Filing: best for not filing the annual report

$199 a year, plus the $100 state fee

First place: Mainstay Filing, since $199 a year pays for formation, the registered agent and the annual report, and renews at $199.

Idaho Registered Agent.co saves $200 over three years. The difference pays for the extra jobs covered here.

Annual report filing is included, and Idaho charges no fee.

Includes

  • LLC formation, filed
  • Registered agent all year
  • Annual report prepared and filed
  • EIN application
  • State fees at cost

Good

  • Renews at $199
  • No fee for the EIN application
  • $199 a year covers filing, agent and report

Against

  • $100 a year above Idaho Registered Agent.co after year one
2 Idaho only

2. Idaho Registered Agent.co: best for staying local

Year one $199. Later years $99

Second place: Idaho Registered Agent.co, since $199 forms the LLC, and the agent renews at $99.

The price leaves out the annual report.

Includes

  • Idaho formation filing
  • Agent for year one

Good

  • $199 to form the LLC
  • Renewal $99
  • The first agent year is included

Against

  • The annual report is a task you keep
  • EIN help is $99 more
3 Idaho only

3. ID Registered Agent.org: best for single-state companies

Year one $199. Later years $99

Third place: ID Registered Agent.org, since $199 forms the LLC, and the agent renews at $99.

The price leaves out the annual report.

It charges what Idaho Registered Agent.co charges.

Includes

  • Idaho formation filing
  • Agent for year one

Good

  • $199 to form the LLC
  • Renewal $99
  • The first agent year is included

Against

  • The annual report is a task you keep
  • EIN help is $99 more

Side by side

#NameYear oneAfter year oneThree yearsIncludes
1 Mainstay Filing $199$199/yr$597LLC formation, filed; registered agent all year; annual report prepared and filed Visit Mainstay FilingPartner link. We may earn money if you buy.
2 Idaho Registered Agent.co $199$99/yr$397idaho formation filing; agent for year one Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
3 ID Registered Agent.org $199$99/yr$397idaho formation filing; agent for year one Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
Prices as of November 13, 2026. The state's fees are in the table below.

Key questions

What does an LLC cost to form here?

Budget $100 for the filing and $199 for first-year service.

With the recurring report, state fees reach $100 in three years. from legislature.idaho.gov, October 2026, kept short

What do I file?

The Certificate of Organization Limited Liability Company goes to the Idaho Secretary of State. Approval creates the LLC.

Statute: Idaho Code § 30-25-201. The state's processing time: About 7 to 10 days. from legislature.idaho.gov, October 2026, kept short

Must the LLC name a registered agent?

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

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

from legislature.idaho.gov, October 2026, kept short

What comes after formation?

One filing repeats: the annual report, yearly, free. The wording from the state is: last day of the entity's anniversary month, so plan around it.

from legislature.idaho.gov, October 2026, kept short

Is a service required?

Yes. Your three-year bill is the state's $100.

A service adds $397 to $597 over three years. With Mainstay Filing the reports are included.

Why this order?

Mainstay Filing scores best on work included, which is 27% of the score.

Five checks: three-year cost (38%), work included (27%), readable pricing (13%), renewal steadiness (11%) and state coverage (11%).

Idaho Registered Agent.co costs less. You would still file the annual report.

The five checks

What Idaho requires to form an LLC

ItemDetailSource
Fee to form$100from legislature.idaho.gov, October 2026, kept short
Registered agentYes, it is requiredfrom legislature.idaho.gov, October 2026, kept short
Annual reportNo feefrom legislature.idaho.gov, October 2026, kept short
State fees, three years$100The rows above, added
Last row: filing fee, plus two reports, plus any minimum tax. Variable costs are described in the text and not added.

Questions

How long does the state take?

About 7 to 10 days.

Who files the EIN application?

Add-on prices for the EIN application: $99 from Idaho Registered Agent.co, $99 from ID Registered Agent.org. Mainstay Filing includes it.

What are the three-year totals?

Mainstay Filing costs $597 and Idaho Registered Agent.co costs $397 and ID Registered Agent.org costs $397, before state fees.

Where do the figures come from?

State fees come from Idaho's official documents. Service prices come from each company's price page. Both are dated here.

Must I use a service?

No. Owners may file directly. A service saves time and can act as agent.

Which LLC service should I use in Idaho?

Mainstay Filing ranks first. One yearly price, $199, includes formation, the registered agent and every annual report. After it, Idaho Registered Agent.co and ID Registered Agent.org.

References

  1. Entry for Idaho yearly filing: Annual report: read at legislature.idaho.gov, dated October 2026, kept short on purpose
  2. Entry for Idaho Code § 30-25-201: read at legislature.idaho.gov, dated August 2026, kept short on purpose
  3. Entry for Idaho formation fee: Filing fee: read at sos.idaho.gov, dated October 2026, kept short on purpose
  4. Entry for Idaho formation fee: Filing fee: read at legislature.idaho.gov, dated October 2026, kept short on purpose
  5. Entry for Idaho registered agent statute: read at legislature.idaho.gov, dated October 2026, kept short on purpose
  6. Entry for Processing, official source: read at sos.idaho.gov, dated October 2026, kept short on purpose
  7. The Mainstay Filing Idaho service page, on November 13, 2026
  8. The Idaho Registered Agent.co pricing page, on November 13, 2026
  9. The ID Registered Agent.org pricing page, on November 13, 2026