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What it means · Idaho

3 Best Registered Agents in Idaho (2026), Explained

Our 2026 ranking for Idaho puts ID Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Idaho Registered Agent.co ($99 a year), in that order. An agent runs $99 to $149 in year one, which adds up to $297 to $447 across three years.
Formation Explained editorial team

The essentials

Does the law demand one?
Yes, required
Official term
Registered agent
Cost per year
$99 to $149 each year
Our picks in order
ID Registered Agent.org, Mainstay Filing then Idaho Registered Agent.co

Idaho: the ranked picks

Ranked using five checks described on our method page.
1 Best overall

1. ID Registered Agent.org: best for a modest yearly fee

Annual price $99, with a renewal price of $99

ID Registered Agent.org comes out on top: its agent service is $99 a year and includes a street address on file.

Cost settles it: three years here total less than with Mainstay Filing.

Includes

  • A local address on record
  • Online access to scanned documents

Points in its favor

  • Costs less each year than Mainstay Filing
  • $99 per year

Where it falls short

  • A one-state service
  • The annual report is left to you to file
2 Covers all states

2. Mainstay Filing: best for an agent that moves with you

Annual price $149, with a renewal price of $149

Number 2 on the list is Mainstay Filing, where $149 a year is its price in this state, and it does not change anywhere else.

Across three years it is $150 pricier than ID Registered Agent.org.

Includes

  • A street address in the state
  • Up to three government mailings a year scanned for free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits

Points in its favor

  • The price is the same in all fifty states
  • $149 per year with no increase

Where it falls short

  • $50 more a year than ID Registered Agent.org
  • An agent only; it does not file reports on its own
3 Idaho specialist

3. Idaho Registered Agent.co: best for another in-state option

Annual price $99, with a renewal price of $99

In third place is Idaho Registered Agent.co, because its agent service is $99 a year and includes a street address on file.

The prices match ID Registered Agent.org, so pick the one you prefer.

Includes

  • A local address on record
  • Online access to scanned documents

Points in its favor

  • Costs less each year than Mainstay Filing
  • $99 per year

Where it falls short

  • A one-state service
  • The annual report is left to you to file

The picks compared

#PickOpening priceYear two onThree-year totalIncluded in the price
1 ID Registered Agent.org $99$99/yr$297A local address on record; online access to scanned documents See ID Registered Agent.orgPartner link. We may earn money if you buy.
2 Mainstay Filing $149$149/yr$447A street address in the state; up to three government mailings a year scanned for free; Works for LLCs, corporations, LPs, LLPs and nonprofits See Mainstay FilingPartner link. We may earn money if you buy.
3 Idaho Registered Agent.co $99$99/yr$297A local address on record; online access to scanned documents See Idaho Registered Agent.coPartner link. We may earn money if you buy.
Service fees only, from each company's pricing as of November 13, 2026. State fees do not change with the service you choose.

Key questions

Is a registered agent required?

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

Read the law: Idaho Code § 30-21-404. see legislature.idaho.gov, October 2026

What are the requirements for an agent?

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

Qualify, and you do not need to pay for an agent.

How much does an agent charge?

The recommended services charge $99 to $149 annually, or $297 to $447 across three years.

Choosing a different agent does not change any state fee.

Why does the state require one?

It takes delivery of legal papers and state notices for the company in Idaho.

The point is that nothing important gets overlooked while you are away. Service of process, explained

Are there yearly state charges?

One filing repeats: the annual report, once a year, with no fee. Filings fall due last day of the entity's anniversary month, a date worth noting down.

see legislature.idaho.gov, October 2026

Why is the first pick first?

It is what three years cost, weighted at 34%, that puts ID Registered Agent.org first.

Our weighting leans on what three years cost first and how much work the price handles second, then three smaller factors.

Picking ID Registered Agent.org leaves $150 in your pocket after three years compared with Mainstay Filing.

The method in detail

What Idaho requires

What it coversFee or ruleReference
Cost of filing$100see legislature.idaho.gov, October 2026
Registered agentYes, requiredsee legislature.idaho.gov, October 2026
Annual reportNo feesee legislature.idaho.gov, October 2026
Paid to the state in three years$100Sum of the figures above
The three-year line combines the filing fee, the reports for years two and three and any yearly minimum tax. Costs with no set amount, like a newspaper notice, are not counted.

Other things people ask

Can I serve as the agent myself?

You may, once you meet the state's rules on who can serve and where.

Which addresses does the state accept?

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

What does each pick cost across three years?

ID Registered Agent.org comes to $297; Mainstay Filing comes to $447; Idaho Registered Agent.co comes to $297

What are the figures based on?

Idaho's official documents supply the state fees, and the companies' price pages supply the service fees.

Could I skip the service?

Not required. Services charge to do the paperwork for you.

What is the best registered agent for Idaho?

ID Registered Agent.org ranks first on what three years cost, ahead of Mainstay Filing and Idaho Registered Agent.co.

Sources used on this page

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