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LLC Straight Talk What it costs, what you have to file, who's worth paying.

Here's the deal · Idaho

3 Best Registered Agents in Idaho (2026), No Fluff

Idaho, 2026: Mainstay Filing ($149 a year), ID Registered Agent.org ($99 a year) and Idaho Registered Agent.co ($99 a year) are our picks for registered agents, in that order. Year one's $99 to $149. Three years come to $297 to $447.
Straight from the LLC Straight Talk editorial team

The short of it

The short of it
Do you have to?
Yes, you have to
Statute's word
Registered agent
Going rate
$99 to $149 per year
Who we'd use
Mainstay Filing, ID Registered Agent.org then Idaho Registered Agent.co

Who we'd use in Idaho

Prices come from each company's own page. Here's how we judge.

#1 Who we'd call first

1. Mainstay Filing: best for an LLC that might grow

$149 a year, then $149

The price doesn't change by state, $149 a year, and renewal is $149. That's why Mainstay Filing is first.

Here's the catch: ID Registered Agent.org costs $150 less over three years, but it only works in Idaho.

What you get

  • An in-state street address on record
  • Scans of three government letters a year, free
  • Handles corporations, LPs, LLPs and nonprofits as well as LLCs

Pluses

  • $149 each year, no increase
  • One account works in any state

What's not

  • $50 a year more than ID Registered Agent.org
  • Just the agent role
Go to Mainstay Filing Partner link. We may earn money if you buy.
#2 Idaho specialist

2. ID Registered Agent.org: best for an LLC that'll stay in the state

$99 a year, then $99

You get an agent in the state for $99 a year. That puts ID Registered Agent.org second.

What you get

  • In-state address
  • Legal papers scanned online

Pluses

  • $99 each year, no increase
  • Smaller yearly bill than the national pick

What's not

  • Idaho only
  • You're stuck filing the annual report
Go to ID Registered Agent.org Partner link. We may earn money if you buy.
#3 Idaho specialist

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

$99 a year, then $99

You get an agent in the state for $99 a year. That puts Idaho Registered Agent.co third.

It charges what ID Registered Agent.org charges.

What you get

  • In-state address
  • Legal papers scanned online

Pluses

  • Smaller yearly bill than the national pick
  • $99 each year, no increase

What's not

  • Idaho only
  • You're stuck filing the annual report
Go to Idaho Registered Agent.co Partner link. We may earn money if you buy.

Side by side

#CompanyFirst yearThenThree-year totalCovers
1 Mainstay Filing $149$149/yr$447An in-state street address on record; scans of three government letters a year, free; Handles corporations, LPs, LLPs and nonprofits as well as LLCs Go to Mainstay Filing Partner link. We may earn money if you buy.
2 ID Registered Agent.org $99$99/yr$297In-state address; legal papers scanned online Go to ID Registered Agent.org Partner link. We may earn money if you buy.
3 Idaho Registered Agent.co $99$99/yr$297In-state address; legal papers scanned online Go to Idaho Registered Agent.co Partner link. We may earn money if you buy.

Service fees only, from each company's prices on November 13, 2026. State fees are the same whoever you pick.

The questions that matter

Does the state make me have a registered agent?

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

The law: Idaho Code § 30-21-404. legislature.idaho.gov, confirmed October 2026, if you don't believe us

Who can be the agent?

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

If you qualify, name yourself and you won't pay an agent.

What does an agent cost?

Agent prices on this page start at $99 to $149 a year, and three years of service come to $297 to $447.

Naming a different agent won't change any state fee.

Why does the state want one?

It takes delivery of lawsuits and official state mail for the LLC at an address in Idaho.

If papers arrive and nobody takes them, a case can move ahead without your LLC. What's service of process?

What else does the state bill every year?

The annual report is free, and it's due each year. Put the state's date on your calendar: last day of the entity's anniversary month.

legislature.idaho.gov, confirmed October 2026, if you don't believe us

Why this order?

Mainstay Filing takes jobs the price actually covers, which counts 30%.

We run five tests: money out the door in three years (35%), jobs the price actually covers (30%), no hunting for the price (14%), no surprise at renewal (11%) and where it works (10%).

ID Registered Agent.org has the smaller bill, but it only serves Idaho.

How we judge

Idaho agent rules, with sources

RequirementDetailOfficial source
LLC filing fee $100legislature.idaho.gov, confirmed October 2026, if you don't believe us
Registered agent Yes, you have tolegislature.idaho.gov, confirmed October 2026, if you don't believe us
Annual report No feelegislature.idaho.gov, confirmed October 2026, if you don't believe us
What the state collects in three years $100Our sum of the rows above

Here's how we got the last row: filing fee + two reports + minimum tax, if there is one. Costs with no set price aren't in it.

More questions

Can I name myself?

Usually. If you fit the state's rule on who qualifies and which address counts, go ahead.

What address does an agent need?

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

What's the three-year damage for each?

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

Where do these numbers come from?

Official Idaho sources back the state side, and posted prices back the service side.

Do I have to use a service?

No law says you need a service. It's a convenience you pay for.

Who's first in Idaho?

Mainstay Filing is first: one account at $149 a year works in whatever state the LLC registers. Then comes ID Registered Agent.org and Idaho Registered Agent.co.

What's next

Don't take our word for it

  1. Don't take our word on Idaho yearly filing: Annual report: legislature.idaho.gov, October 2026, is where it's from, no filter
  2. Don't take our word on Idaho Code § 30-25-201: legislature.idaho.gov, August 2026, is where it's from, no filter
  3. Don't take our word on Idaho formation fee: Filing fee: sos.idaho.gov, October 2026, is where it's from, no filter
  4. Don't take our word on Idaho formation fee: Filing fee: legislature.idaho.gov, October 2026, is where it's from, no filter
  5. Don't take our word on Idaho registered agent statute: legislature.idaho.gov, October 2026, is where it's from, no filter
  6. The Mainstay Filing Idaho service page as of November 13, 2026
  7. The ID Registered Agent.org pricing page as of November 13, 2026
  8. The Idaho Registered Agent.co pricing page as of November 13, 2026