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LLC UnpackedEvery filing, unpacked: the fee, the form, the catch.

What is inside · Idaho

3 Best Registered Agents in Idaho (2026): Unpacked

In Idaho for 2026, unpack registered agents in this order: Mainstay Filing ($149 a year), ID Registered Agent.org ($99 a year) and Idaho Registered Agent.co ($99 a year). Year one runs $99 to $149, and three years stack up to $297 to $447.
Unpacked by the LLC Unpacked editorial team

Top layer

Must the LLC name an agent?
Yes, by law
Label in the statute
Registered agent
What agents charge
$99 to $149 a year
Our pick
Mainstay Filing, ID Registered Agent.org then Idaho Registered Agent.co

Our Idaho picks, opened up

The order follows our five layers: three-year cost first, then what the price covers.
Top of the stack

1. Mainstay Filing: best for one price in every state

$149 a year, then $149 at renewal

Mainstay Filing sits on top in Idaho because one account at $149 a year covers whichever state the LLC registers in.

Is it the smallest bill? No. ID Registered Agent.org costs $150 less over three years, but only in Idaho.

Inside the price

  • A street address inside the state
  • Three government mailings a year, scanned for free
  • Reaches beyond LLCs: corporations, LPs, LLPs and nonprofits

Inside, the good

  • Follows your LLC to a new state
  • Just $149 a year

Inside, the catch

  • ID Registered Agent.org charges $50 less each year
  • Agent role only, no report filing
Idaho only

2. ID Registered Agent.org: best for one-state businesses

$99 a year, then $99 at renewal

What puts ID Registered Agent.org second: its service puts a street address on file for $99 a year.

Inside the price

  • A local address on file
  • Scans of legal papers online

Inside, the good

  • Just $99 a year
  • Costs less a year than Mainstay Filing

Inside, the catch

  • A second state needs a second agent
  • The annual report is a job you keep
Idaho only

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

$99 a year, then $99 at renewal

What puts Idaho Registered Agent.co third: its service puts a street address on file for $99 a year.

Its prices match ID Registered Agent.org exactly, so the order between them is close.

Inside the price

  • A local address on file
  • Scans of legal papers online

Inside, the good

  • Costs less a year than Mainstay Filing
  • Just $99 a year

Inside, the catch

  • A second state needs a second agent
  • The annual report is a job you keep

Side by side

#PickYear oneEach year afterTotal, 3 yearsWhat is inside
1Mainstay Filing$149$149/yr$447A street address inside the state; three government mailings a year, scanned for free; Reaches beyond LLCs: corporations, LPs, LLPs and nonprofitsOpen Mainstay FilingPartner link. We may earn money if you buy.
2ID Registered Agent.org$99$99/yr$297A local address on file; scans of legal papers onlineOpen ID Registered Agent.orgPartner link. We may earn money if you buy.
3Idaho Registered Agent.co$99$99/yr$297A local address on file; scans of legal papers onlineOpen Idaho Registered Agent.coPartner link. We may earn money if you buy.
Prices as of November 13, 2026. The state's own fees are in the checklist below.

Layer by layer

Is a registered agent required?

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

Statute: Idaho Code § 30-21-404. peek at legislature.idaho.gov, confirmed October 2026

Who qualifies?

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

If you qualify, you can serve yourself at no cost.

How much does an agent cost?

A year of agent service runs $99 to $149 with our picks, and three years run $297 to $447.

No state fee depends on the agent you name.

What does an agent handle for the LLC?

Court papers and state notices for the company land at the agent's Idaho address first.

If papers arrive and nobody accepts them, a case can move ahead without the LLC. What is service of process?

Is anything else due every year?

The annual report costs nothing and comes each year. For timing the state says: last day of the entity's anniversary month.

peek at legislature.idaho.gov, confirmed October 2026

What put number one on top?

Mainstay Filing is strongest on what is inside the price, a layer worth 29% of the score.

Two layers carry most of the weight, total across three years (34%) and what is inside the price (29%).

Only the first pick holds up in all fifty states, and that counts the day the LLC registers elsewhere.

How we open it up

Idaho: the agent checklist

RequirementWhat is insidePeek at source
LLC filing fee$100peek at legislature.idaho.gov, confirmed October 2026
Registered agentYes, by lawpeek at legislature.idaho.gov, confirmed October 2026
Annual reportNo feepeek at legislature.idaho.gov, confirmed October 2026
State fees, years one to three$100The rows above, stacked
Every row above links to its official source. The final row is our own total of the filing, two reports and any minimum tax.

More boxes to open

Can I be my own agent?

Yes, if you meet the state's rules on who may serve and on the address, both shown above.

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 do the picks cost over three years?

Mainstay Filing stacks up to $447, ID Registered Agent.org stacks up to $297, Idaho Registered Agent.co stacks up to $297

Are the fees official?

Official Idaho paperwork stands behind every state fee here, and every service price traces back to the company's own pricing.

Does the law require one?

No. Owners can file with the state directly. A service saves time and can act as agent, but nothing makes you hire one.

Which registered agent should I open first in Idaho?

Open Mainstay Filing first, then compare ID Registered Agent.org and Idaho Registered Agent.co.

Originals behind this page

  1. Unpacking Idaho yearly filing: Annual report led us to legislature.idaho.gov, confirmed October 2026, which you can open yourself
  2. Unpacking Idaho Code § 30-25-201 led us to legislature.idaho.gov, confirmed August 2026, which you can open yourself
  3. Unpacking Idaho formation fee: Filing fee led us to sos.idaho.gov, confirmed October 2026, which you can open yourself
  4. Unpacking Idaho formation fee: Filing fee led us to legislature.idaho.gov, confirmed October 2026, which you can open yourself
  5. Unpacking Idaho registered agent statute led us to legislature.idaho.gov, confirmed October 2026, which you can open yourself
  6. Mainstay Filing Idaho service page, read November 13, 2026
  7. ID Registered Agent.org pricing page, read November 13, 2026
  8. Idaho Registered Agent.co pricing page, read November 13, 2026