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What forming an LLC costs by state / Idaho

3 Best LLC Services in Idaho (2026): What You Pay

For 2026, we would price out Mainstay Filing ($199), ID Registered Agent.org ($199) and Idaho Registered Agent.co ($199), in that order, before any other Idaho LLC formation services. Budget $397 to $597 for services over three years, plus the $100 that Idaho charges to file.
Written by the Price Your LLC editorial team

↓ Ranked for you by: Your spend is 38% of the ranking and the work covered is 31% (more on this)

Budget snapshot

Government charge to file $100 legislature.idaho.gov (we looked on October 2026, so you can too)
Opening cost range $199 Before government fees
Total after 3 years $397 to $597 Opening year plus two more
State side through year 3 $100 Filing, reports and any minimum tax
Bills cross in Does not happen Ranking steady to year 10

Ranked for you

Service prices only. Every option comes with the same $100 state fee.

1
Best value for you

1. Mainstay Filing: best for the most work off your plate per dollar

$199 a year on top of the $100 state fee
You pay in year 1 $199
You pay after year 1 $199/yr
You pay over 3 years $597

In Idaho, Mainstay Filing is where your money goes furthest, since one $199 price takes care of formation, registered agent service and every annual report.

ID Registered Agent.org costs $200 less by year three; the 31% weight on work covered still puts this one first.

The annual report is taken off your list, and Idaho charges nothing for it.

Your price covers

  • Formation handled for you
  • Registered agent for the whole year
  • Annual report, filed on time
  • EIN application prepared for you
  • Nothing added to state charges

What you get

  • $199 in year two
  • $199 a year covers filing and agent and report
  • EIN application covered

What to watch

  • $100 more a year than ID Registered Agent.org after year one
2
Idaho focus

2. ID Registered Agent.org: best for a basic start

$199 for formation, $99 for the agent after that
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Spot 2 goes to ID Registered Agent.org: $199 to start, first agent year included, then $99 a year.

Expect to handle the annual report on your own.

Your price covers

  • Formation paperwork, completed
  • Agent service for your first year

What you get

  • Formation costs $199
  • Agent included to start
  • Agent renews at $99

What to watch

  • Your price excludes the annual report
  • $99 extra for the EIN
3
Idaho focus

3. Idaho Registered Agent.co: best for owners who prepare their own reports

$199 for formation, $99 for the agent after that
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Spot 3 goes to Idaho Registered Agent.co: $199 to start, first agent year included, then $99 a year.

Expect to handle the annual report on your own.

ID Registered Agent.org lists identical prices.

Your price covers

  • Formation paperwork, completed
  • Agent service for your first year

What you get

  • Agent included to start
  • Formation costs $199
  • Agent renews at $99

What to watch

  • Your price excludes the annual report
  • $99 extra for the EIN

What each service adds up to

Pick Service You pay in year 1 You pay by year 2 You pay by year 3 You pay by year 5
1 Mainstay Filing $199 $398 $597 $995 Price out Mainstay Filing Partner link. We may earn money if you buy.
2 ID Registered Agent.org $199 $298 $397 $595 Price out ID Registered Agent.org Partner link. We may earn money if you buy.
3 Idaho Registered Agent.co $199 $298 $397 $595 Price out Idaho Registered Agent.co Partner link. We may earn money if you buy.

Prices as published November 13, 2026; you pay year one first, then each renewal is added. Ranked by running total, the order is steady for ten years.

Cost calculator

Not sure how long you will keep the company? Try a few timelines below, with the EIN application as an extra.

Your spend for 3 years: Mainstay Filing $597, ID Registered Agent.org $397, Idaho Registered Agent.co $397. Your smallest total: ID Registered Agent.org.

State fees with sources

What you pay for Amount Source
Filing to form your LLC $100 legislature.idaho.gov (we looked on October 2026, so you can too)
Annual report No charge legislature.idaho.gov (we looked on October 2026, so you can too)
State fees over three years $100 Sum of the lines above

Each line links to the state's own page. Together they give you the three-year state total: filing, reports in years two and three, and a minimum tax if there is one.

Why this order for Idaho

Mainstay Filing did better than ID Registered Agent.org on upkeep the price covers, a 31% factor.

Taking over the annual report moved the bundle to first.

If you count the EIN application, ID Registered Agent.org costs you less from year 2.

What Idaho charges you to form an LLC and what it requires

Your filing goes to the Idaho Secretary of State: the Certificate of Organization Limited Liability Company together with $100 (Idaho Code § 30-25-201). Every LLC must name a registered agent with an in-state street address.

As written: legislature.idaho.gov (we looked on October 2026, so you can too)

What it costs without a service

Doing it yourself costs $100 paid to the state across three years. A service at $397 to $597 is what you pay to skip the forms.

Questions

How much will an LLC formation service cost me in Idaho?

Budget $199 plus $100 in state fees.

What will these services cost me over three years?

$397 to $597 in service fees, with state fees on top.

How much will Idaho charge me to file an LLC?

Idaho bills $100 for the Certificate of Organization Limited Liability Company.

What will Idaho charge me each year after formation?

You pay nothing each year for the annual report; the state sets the deadline at last day of the entity's anniversary month.

Will the EIN application be part of the price?

Mainstay Filing bundles it in, ID Registered Agent.org bills you $99 more and Idaho Registered Agent.co bills you $99 more.

When does one service end up costing more than another?

No break-even inside ten years.

Which LLC formation service is the best value for me in Idaho?

By our five factors the Idaho order is Mainstay Filing, ID Registered Agent.org and Idaho Registered Agent.co, led by Mainstay Filing on upkeep the price covers.

See also

What forming an LLC costs by state for all 50 states Best LLC services for anyone How we rank your options

Where we looked

  1. Idaho yearly filing: Annual report traces back to legislature.idaho.gov; we looked in October 2026.
  2. Idaho Code § 30-25-201 traces back to legislature.idaho.gov; we looked in August 2026.
  3. Idaho formation fee: Filing fee traces back to sos.idaho.gov; we looked in October 2026.
  4. Idaho formation fee: Filing fee traces back to legislature.idaho.gov; we looked in October 2026.
  5. Idaho registered agent statute traces back to legislature.idaho.gov; we looked in October 2026.
  6. Price page checked November 13, 2026: Mainstay Filing Idaho service page
  7. Price page checked November 13, 2026: ID Registered Agent.org pricing page
  8. Price page checked November 13, 2026: Idaho Registered Agent.co pricing page