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Formation ClassClass is in session: LLC paperwork, state by state.

Class 1 · Idaho

Idaho LLC Formation Class (2026): 7 Assignments and the 3 Best LLC Services

If you want help starting an LLC in Idaho in 2026, the top grades go to Mainstay Filing ($199), Idaho Registered Agent.co ($199) and ID Registered Agent.org ($199), in that order. Starting the LLC means 7 assignments and $100 to the state, then the annual report every year.

Taught by the Formation Class faculty

Key facts for this class

Cost at the state office$100Source for this: legislature.idaho.gov, October 2026
Annual reportNo feeFiling window per the state: last day of the entity's anniversary month
State fees over three years$100State charges only
How many assignments7From first to last

Class goals

  • What Idaho charges for a new LLC and where the filing goes
  • How to meet the registered agent rule
  • What you file every year after that
  • Our recommendations, with reasons

The Idaho honor roll

The teacher's five criteria are on how we grade, and they decide the order.
Highest grade

1. Mainstay Filing: best for having the annual report filed by someone else

$199 per year

In Idaho, Mainstay Filing sits at the top of the class: $199 a year does three pieces of homework at once: the filing, the registered agent and the annual report.

You pay $200 extra across three years compared with Idaho Registered Agent.co, and you keep less of the paperwork.

The annual report is covered too (no state fee applies).

Covered by the tuition

  • Filing made with the state
  • Registered agent for the whole year
  • Annual report filed on time
  • EIN application included
  • State fee at cost

Strengths

  • $199 per year for the whole package
  • The EIN application is in the price
  • $199 when you renew

Weak spots

  • $100 a year more than Idaho Registered Agent.co at renewal
In-state service

2. Idaho Registered Agent.co: best for owners who plan to stay in Idaho

$199 plus the state fee, then $99 a year

Second place goes to Idaho Registered Agent.co, since $199 above the state fee, with year one of the agent covered, then $99 a year.

Block out time for the annual report every year; the price leaves it out.

Covered by the tuition

  • The formation filing
  • A year of agent service is part of the price

Strengths

  • The agent renews at $99
  • Year-one agent service costs nothing extra
  • $199 and the state fee

Weak spots

  • It leaves the annual report for you to file
  • Help with the EIN is $99 more
In-state service

3. ID Registered Agent.org: best for a local filer

$199 plus the state fee, then $99 a year

Third place goes to ID Registered Agent.org, since $199 above the state fee, with year one of the agent covered, then $99 a year.

Block out time for the annual report every year; the price leaves it out.

Idaho Registered Agent.co and this service cost the same.

Covered by the tuition

  • The formation filing
  • A year of agent service is part of the price

Strengths

  • The agent renews at $99
  • Year-one agent service costs nothing extra
  • $199 and the state fee

Weak spots

  • It leaves the annual report for you to file
  • Help with the EIN is $99 more

The services compared

#ServiceFirst yearFrom year twoThree-year total
1Mainstay Filing$199$199/yr$597Visit Mainstay FilingPartner link. We may earn money if you buy.
2Idaho Registered Agent.co$199$99/yr$397Visit Idaho Registered Agent.coPartner link. We may earn money if you buy.
3ID Registered Agent.org$199$99/yr$397Visit ID Registered Agent.orgPartner link. We may earn money if you buy.
Listed prices, read November 13, 2026. Each row still needs Idaho's $100 fee.

Starting a Idaho LLC, assignment by assignment

  1. Assignment
    1

    Pick the LLC's name

    Your first assignment is a name search at the Idaho Secretary of State, so you do not file under a name that someone else uses.

    Bring a second name with you.

  2. Assignment
    2

    Choose your registered agent

    Every LLC must name a registered agent with an in-state street address. An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve.

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

    Any of the graded services can take the registered agent role.

    Textbook page: Source for this: legislature.idaho.gov, October 2026

  3. Assignment
    3

    File on your own or hire a service

    With no service, the bill is the state's $100. Each of the graded services adds $199 and handles the paperwork.

  4. Assignment
    4

    Put together and mail the Certificate of Organization Limited Liability Company

    You need three things for this assignment: the Certificate of Organization Limited Liability Company, $100 and the Idaho Secretary of State as the place to send them. Statute: Idaho Code § 30-25-201. The state describes its processing time as About 7 to 10 days.

    Textbook page: Source for this: legislature.idaho.gov, October 2026

  5. Assignment
    5

    Order the LLC's federal tax ID

    The IRS gives out EINs, not Idaho. Apply once you are approved, then hand the number to your bank. Hire Mainstay Filing and this assignment is done for you.

  6. Assignment
    6

    Get the owners' agreement signed

    Owners sign it to settle shares, votes and what happens when a member leaves. It is private and never filed.

  7. Assignment
    7

    Handle Idaho's recurring filing

    To stay active, send in the annual report every year by last day of the entity's anniversary month.

    Textbook page: Source for this: legislature.idaho.gov, October 2026

Idaho costs by assignment

EntryGoes toPrice
Setting up the LLCState office$100
Annual reportState officeNo fee
Service fees (optional)The provider$199 to start
Three years of state feesState office$100
Filing fee plus two later reports plus any minimum tax makes the state's three-year total. The pages listed below show where each figure came from.

How we graded the Idaho picks

pulled ahead of on homework the price does, which counts for 34%.

A price that handles the annual report counted for more than Idaho Registered Agent.co's smaller three-year total.

Short answers

What is the Idaho formation fee?

Idaho bills $100. A graded service adds $199 in year one.

Which form creates the LLC?

Look for the Certificate of Organization Limited Liability Company; the Idaho Secretary of State is the office.

Is a registered agent required?

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

How long does Idaho take to process the filing?

Count on About 7 to 10 days.

What does Idaho require each year?

Hand in the annual report every year, no fee; deadline last day of the entity's anniversary month.

Can I form the LLC without a service?

A service is optional. Owners can file with the $100 fee as long as they appoint a registered agent.

Which LLC service should a first-time founder use?

Mainstay Filing, Idaho Registered Agent.co and ID Registered Agent.org, from the highest grade to the lowest.

More classes

Textbook pages and extra reading

  1. Study tip for Idaho yearly filing: Annual report: due date, official: everything above comes from legislature.idaho.gov, which we reread in October 2026. Open it and follow along.
  2. Study tip for Idaho Code § 30-25-201: everything above comes from legislature.idaho.gov, which we reread in August 2026. Open it and follow along.
  3. Study tip for Idaho formation fee: Filing fee, official source: everything above comes from sos.idaho.gov, which we reread in October 2026. Open it and follow along.
  4. Study tip for Idaho formation fee: Filing fee, official source: everything above comes from legislature.idaho.gov, which we reread in October 2026. Open it and follow along.
  5. Study tip for Idaho registered agent statute: everything above comes from legislature.idaho.gov, which we reread in October 2026. Open it and follow along.
  6. Study tip for Processing, official source: everything above comes from sos.idaho.gov, which we reread in October 2026. Open it and follow along.
  7. Idaho service page from Mainstay Filing as of November 13, 2026
  8. pricing page from Idaho Registered Agent.co as of November 13, 2026
  9. pricing page from ID Registered Agent.org as of November 13, 2026