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Formation Scorecard

Registered agent scorecard · Idaho

3 Best Registered Agents in Idaho (2026)

On the Formation Scorecard 2026 scorecard for registered agents in Idaho the order reads Idaho Registered Agent.co ($99 a year), ID Registered Agent.org ($99 a year) and Mainstay Filing ($149 a year). Idaho Registered Agent.co posts the top score: an Idaho specialist at $99 a year that supplies an in-state registered office street address.
Researched and written by the Formation Scorecard editorial team
Rank #1 Our top pick

1. Idaho Registered Agent.co: best for the lowest yearly rate on this list

9.2 Editor score out of 10
$99 a year, no change on renewal

Idaho Registered Agent.co leads the card: $99 a year, flat, with scans of served legal papers delivered online.

Idaho Registered Agent.co puts a street address in the state on record for the company and scans served papers into your account.

Across three years it costs less than Mainstay Filing, and cost is one of our two heaviest criteria.

What you get

  • A physical address in the state for the registered office
  • Online scans of each legal paper served on the company

Strengths

  • Offers formation with a free first agent year
  • Yearly price below Mainstay Filing's
  • A $99 plan with a flat renewal

Watch for

  • You file the annual report yourself
  • Limited to Idaho; other states need another agent
Visit Idaho Registered Agent.coPartner link. We may earn money if you buy. Idaho Registered Agent.co: the full write-up
Rank #2 Best yearly price

2. ID Registered Agent.org: best for Idaho-based companies

8.7 Editor score out of 10
$99 a year, no change on renewal

ID Registered Agent.org takes second spot: $99 a year, flat, with scans of served legal papers delivered online.

ID Registered Agent.org puts a street address in the state on record for the company and scans served papers into your account.

The published prices and features do not separate Idaho Registered Agent.co from ID Registered Agent.org; choose whichever you like.

What you get

  • A physical address in the state for the registered office
  • Online scans of each legal paper served on the company

Strengths

  • Yearly price below Mainstay Filing's
  • $99 annually, same when it renews
  • Offers formation with a free first agent year

Watch for

  • You file the annual report yourself
  • Limited to Idaho; other states need another agent
Visit ID Registered Agent.orgPartner link. We may earn money if you buy. ID Registered Agent.org: the full write-up
Rank #3 Best for growing companies

3. Mainstay Filing: best for every state

8.5 Editor score out of 10
$149 a year, no change on renewal

Mainstay Filing takes third spot: $149 yearly for an agent that fits a company in one state or in fifty, with the first three government mailings each year scanned free.

Not formed yet? Mainstay's $199-a-year formation package covers the Idaho filing along with the annual report.

Idaho Registered Agent.co undercuts Mainstay Filing by $150 over three years, and that gap costs Mainstay points on cost.

What you get

  • An in-state street address on the public record
  • No-cost scan and upload of served papers within the same business day
  • The first three government mailings each year scanned at no cost
  • Compliance reminders

Strengths

  • Served papers scanned on the day they arrive, free
  • First three government mailings each year scanned free
  • Fits LLCs, corporations, LPs, LLPs and nonprofits
  • $149 a year with no renewal step-up

Watch for

  • Agent service alone costs $50 a year more than Idaho Registered Agent.co
  • The agent plan does not file annual reports
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing: the full write-up

The 3 entries on one card

Place Service Card score Yearly cost Renews at Best for Go
1 Idaho Registered Agent.co 9.2 $99 $99/yr The lowest yearly price we rank here Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
2 ID Registered Agent.org 8.7 $99 $99/yr The lowest yearly price we rank here Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
3 Mainstay Filing 8.5 $149 $149/yr An agent for every state Visit Mainstay FilingPartner link. We may earn money if you buy.

Scores are Formation Scorecard's own marks out of 10, based on the criteria explained on How we rank. Customers do not rate anything here.

Idaho registered agent cost in 2026: first year, renewal and the three-year tally

Service First year Second year Third year Three-year tally Holds its price at renewal
Idaho Registered Agent.co $99 $99 $99 $297 Yes
ID Registered Agent.org $99 $99 $99 $297 Yes
Mainstay Filing $149 $149 $149 $447 Yes

Each price comes from the company's own site, read on November 12, 2026. Idaho charges its own fees the same way whichever agent you name.

What broke the tie

The marking scheme gives 25% to cost across three years and 25% to coverage of the price, with renewal terms, state-by-state fit and pricing clarity sharing 50%. For Idaho, cost across three years made the difference.

Idaho Registered Agent.co tallies $297 across three years, $150 below Mainstay Filing. If Idaho is the only state, fifty-state coverage adds little, and the lower yearly price takes the points.

Every criterion and weight appears on How we rank.

What Idaho Secretary of State requires of a Idaho registered agent (official)

Every LLC must name a registered agent with an in-state street address. The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted. Statute: Idaho Code § 30-21-404.

The Idaho annual report: fee, due date and your agent

Idaho LLCs file the annual report every year. The state takes no fee and the date is last day of the entity's anniversary month. The state sends related notices to your registered agent.

Idaho registered agent: quick questions

Is an Idaho LLC obliged to keep a registered agent?

It is. Idaho wants every LLC to have a registered agent on file, and that agent must hold a street address inside the state.

What is the going yearly rate for a registered agent in Idaho?

Yearly prices span $99 to $149, and each service holds its price when it renews.

Is it allowed to serve as my own registered agent?

Yes, if you satisfy the state's conditions. An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve.

When must the Idaho annual report be filed?

The deadline is last day of the entity's anniversary month. There is no state fee.

Which registered agents sit on this card?

Idaho Registered Agent.co ($99 a year), ID Registered Agent.org ($99 a year) and Mainstay Filing ($149 a year), top to bottom.

Which Idaho registered agent scores best on value?

Idaho Registered Agent.co, since $99 a year, steady at renewal, and the lowest yearly price on this list.

Related pages

Where the figures come from

  1. Idaho yearly filing: Annual report: due date, official source, as of October 2026
  2. Idaho Code § 30-25-201, as of August 2026
  3. Idaho formation fee: Filing fee, official source, as of October 2026
  4. Idaho formation fee: Filing fee, official source, as of October 2026
  5. Idaho registered agent statute, as of October 2026
  6. Read on November 12, 2026: pricing and service pages for Idaho Registered Agent.co
  7. Read on November 12, 2026: pricing and service pages for ID Registered Agent.org
  8. Read on November 12, 2026: Idaho service page for Mainstay Filing