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Researched and written by the Launchwise Review editorial team
Launchwise Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Launch guide · Idaho · registered agent

3 Best Registered Agents in Idaho (2026)

Researched and written by the Launchwise Review editorial team
For a 2026 launch in Idaho, Launchwise Review grades registered agents this way: Mainstay Filing ($149 a year), Idaho Registered Agent.co ($99 a year) and ID Registered Agent.org ($99 a year). Mainstay Filing earns the top grade here: one agent plan at $149 a year that works in every state, renewing at $149.
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Top pick on this page

1. Mainstay Filing: best for all fifty states

$149 a year, flat

Our mark 9.3 out of 10

Top grade, Mainstay Filing: the price stays $149 a year if you stay put or expand, and your first three government letters each year are scanned free.

Launching a new company? The $199 yearly package also takes care of the Idaho filing and the annual report.

It runs $150 above Idaho Registered Agent.co across three years; the extra paperwork it handles is worth that to us.

In the price

  • A street address in the state for your registered office
  • No-cost scanning of served papers within the same business day
  • Three letters from government offices scanned each year at no charge
  • Compliance reminders

Pros

  • Your first three government letters each year are scanned free
  • Papers served on the company are scanned the same business day, free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits
  • $149 a year and it does not rise

Less good

  • The agent plan alone costs $50 a year more than Idaho Registered Agent.co
  • No annual report filing on the agent-only plan
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing launch review
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Best yearly price

2. Idaho Registered Agent.co: best for the smallest annual bill we rank here

$99 a year, flat

Our mark 8.9 out of 10

Next up is Idaho Registered Agent.co: a Idaho specialist at $99 a year, supplying an in-state street address for the registered office.

Idaho Registered Agent.co handles the registered office with a state street address and scans whatever is served there for you.

In the price

  • A physical street address in the state on the public record
  • Whatever is served on the company is scanned into your account

Pros

  • You pay $99 a year, renewals included
  • LLC formation with year-one agent service included
  • Costs less per year than Mainstay Filing

Less good

  • You still file the annual report
  • Made for Idaho; other states need their own agent
Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
Read the Idaho Registered Agent.co launch review
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Built for Idaho

3. ID Registered Agent.org: best for Idaho specialists

$99 a year, flat

Our mark 8.7 out of 10

Rounding out the list is ID Registered Agent.org: a Idaho specialist at $99 a year, supplying an in-state street address for the registered office.

ID Registered Agent.org handles the registered office with a state street address and scans whatever is served there for you.

Nothing in the published price or features separates Idaho Registered Agent.co from ID Registered Agent.org; go with whichever you like.

In the price

  • The in-state address the state asks for
  • Whatever is served on the company is scanned into your account

Pros

  • LLC formation with year-one agent service included
  • A $99 yearly plan with a steady renewal price
  • Costs less per year than Mainstay Filing

Less good

  • You still file the annual report
  • Made for Idaho; other states need their own agent
Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
Read the ID Registered Agent.org launch review

The 3 grades at a glance

Place Company Launch grade Per year At renewal Best fit Go
1 Mainstay Filing 9.3 $149 $149/yr An agent for every state you may enter Visit Mainstay FilingPartner link. We may earn money if you buy.
2 Idaho Registered Agent.co 8.9 $99 $99/yr The lowest yearly price among the picks we rank here Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
3 ID Registered Agent.org 8.7 $99 $99/yr The lowest yearly price among the picks we rank here Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
Each grade out of 10 reflects our editors' reading of the weighted criteria on How we rank, not a customer rating.

Idaho registered agent cost in 2026: first year, renewals, three-year total

Company Year 1 Year 2 Year 3 Three years, total Renewal price matches
Mainstay Filing $149 $149 $149 $447 Yes
Idaho Registered Agent.co $99 $99 $99 $297 Yes
ID Registered Agent.org $99 $99 $99 $297 Yes
Prices were copied from each company's own pages on November 12, 2026. Idaho's own fees do not change with your choice of agent.

The thinking behind the order

Launchwise Review puts 26% on cost to launch and stay and 26% on launch paperwork handled, then spreads 48% over renewal behavior, state match and price transparency. For Idaho, the call came down to launch paperwork handled.

Mainstay's plan covers more ground: papers served on the company are scanned the same business day at no charge, the price is the same in all fifty states, and three government letters a year are scanned free. Idaho Registered Agent.co costs less, and the grades are close.

Every criterion and weight is listed on How we rank.

Idaho registered agent rules, straight from Idaho Secretary of State

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. Law behind it: Idaho Code § 30-21-404.

Idaho annual report: date and fee

Put the annual report on your Idaho calendar every year. There is no state charge, with the deadline at last day of the entity's anniversary month. Your registered agent receives the state's notices about it.

Quick answers about Idaho registered agents

Do I have to line up a registered agent before launching an Idaho LLC?

Yes. Put a registered agent with a physical Idaho address on the paperwork, because the state will not accept an LLC without one.

What should I budget each year for a Idaho registered agent?

Expect $99 to $149 a year, and each company keeps its price at renewal.

Could I just serve as my own registered agent?

Often yes, if you meet 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 does the Idaho annual report come due?

Put last day of the entity's anniversary month on your calendar. The state asks no fee.

Which registered agents are graded on this page?

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

Which Idaho registered agent should a new company pick first?

Mainstay Filing, because $149 a year, still $149 at renewal, and papers served on the company are scanned the same business day at no charge.

Keep reading

Sources and dates

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