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LLC formation watchlists / Idaho

3 Best LLC Services in Idaho (2026): Prices Tracked

For LLC formation services in Idaho this 2026, the order on the watchlist is Mainstay Filing ($199), ID Registered Agent.org ($199) and Idaho Registered Agent.co ($199). Three years of service fees land between $397 to $597. Idaho charges $100 to file, whichever service you pick.
Tracked by the Filing Price Watch editorial team

Ordered by: Best value first, using our five measures

The short version

Government fee to file $100 legislature.idaho.gov (pulled October 2026, noted here)
Opening prices $199 Excludes government fees
Three-year spread $397 to $597 Renewals included
State side, years 1 to 3 $100 Official figures only
Crossover year Never Ranking does not flip

Idaho: best value first

Ordered by our tracking method. No service includes the $100 state fee.

1
Number one

1. Mainstay Filing: best for the most paperwork per dollar

$199 yearly and the $100 state fee

Price in year 1 $199
Price after year 1 $199/yr
Three-year spend $597

Mainstay Filing leads since for $199 a year the filing, the registered agent and the annual report are all covered, and year two costs $199.

You would save $200 over three years with ID Registered Agent.org and keep more filings on your own plate.

It files the annual report for you, and there is no state fee for it.

Price covers

  • Formation paperwork done
  • Registered agent for the full year
  • Annual report, filed when it is due
  • EIN application, prepared for you
  • No markup on government fees

Holds up

  • $199 buys the whole bundle
  • It prepares the EIN application
  • $199 the second year

Weak spots

  • ID Registered Agent.org renews for $100 less
2
One-state service

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

$199 for formation, $99 for the agent after that

Price in year 1 $199
Price after year 1 $99/yr
Three-year spend $397

Spot 2 goes to ID Registered Agent.org: $199 in year one and $99 each year from then on.

Its price does not extend to the annual report.

Price covers

  • Articles of organization, filed
  • A year of agent service to begin with

Holds up

  • Agent renews for $99
  • $199 for the filing
  • Agent service free in year one

Weak spots

  • The annual report is not priced in
  • $99 extra for the EIN
3
One-state service

3. Idaho Registered Agent.co: best for a small agent renewal

$199 for formation, $99 for the agent after that

Price in year 1 $199
Price after year 1 $99/yr
Three-year spend $397

Spot 3 goes to Idaho Registered Agent.co: $199 in year one and $99 each year from then on.

Its price does not extend to the annual report.

Price for price, it matches ID Registered Agent.org.

Price covers

  • Articles of organization, filed
  • A year of agent service to begin with

Holds up

  • Agent service free in year one
  • Agent renews for $99
  • $199 for the filing

Weak spots

  • The annual report is not priced in
  • $99 extra for the EIN

Running totals at 1, 2, 3 and 5 years

Place Service After year 1 After year 2 After year 3 After year 5
1 Mainstay Filing $199 $398 $597 $995
Go to Mainstay Filing Partner link. We may earn money if you buy.
2 ID Registered Agent.org $199 $298 $397 $595
Go to ID Registered Agent.org Partner link. We may earn money if you buy.
3 Idaho Registered Agent.co $199 $298 $397 $595
Go to Idaho Registered Agent.co Partner link. We may earn money if you buy.

Company price pages as of November 13, 2026, added up year by year. The order holds for a full ten years.

Check a different span

How long will the LLC stay open? Choose the years and compare, with the EIN application as an option.
Spend for 3 years: Mainstay Filing $597, ID Registered Agent.org $397, Idaho Registered Agent.co $397. Lowest total at that point: ID Registered Agent.org.

Official fees and where they come from

Item Amount Source
Starting the LLC $100 legislature.idaho.gov (pulled October 2026, noted here)
Annual report Free legislature.idaho.gov (pulled October 2026, noted here)
State fees over three years $100 Lines added together

Three years of state charges means one filing, two reports and any minimum tax. We list open-ended costs such as publication but keep them out of the total.

What decided the order

Filings covered by the price gave Mainstay Filing the lead. It makes up 29% of the order, and tracked three-year cost, renewal movement, crossover year and price visibility cover the remainder.

ID Registered Agent.org costs less over three years but you would still file the annual report.

Put the EIN application into the sum and the totals cross at year 2, when Mainstay Filing passes ID Registered Agent.org.

Idaho LLC filing fee and requirements, as written by the state

$100 and the Certificate of Organization Limited Liability Company, filed with the Idaho Secretary of State, bring the company into being. Every LLC must name a registered agent with an in-state street address.

The state says: legislature.idaho.gov (pulled October 2026, noted here)

Filing it yourself

$100 in state fees is the lowest the three years can cost. The list shows what each service puts on top ($397 to $597).

Idaho pricing questions

How much do LLC formation services cost in Idaho?

These services charge $199 to begin, and the state takes $100.

What do these services cost over three years?

By year three these services have cost $397 to $597.

What does Idaho charge to file an LLC?

$100 paid to the state, through the Certificate of Organization Limited Liability Company.

What does Idaho charge every year once the LLC exists?

Once the LLC exists, Idaho expects the annual report each year, at no charge, last day of the entity's anniversary month.

Does the price include the EIN application?

Mainstay Filing includes it, ID Registered Agent.org adds $99 and Idaho Registered Agent.co adds $99.

In what year does one service become pricier than another?

There is no crossover inside ten years.

Which LLC formation service is the best value in Idaho?

Mainstay Filing wins on filings covered by the price, followed by ID Registered Agent.org and Idaho Registered Agent.co.

Next up

Source trail

  1. Idaho yearly filing: Annual report was confirmed against legislature.idaho.gov in October 2026.
  2. Idaho Code § 30-25-201 was confirmed against legislature.idaho.gov in August 2026.
  3. Idaho formation fee: Filing fee was confirmed against sos.idaho.gov in October 2026.
  4. Idaho formation fee: Filing fee was confirmed against legislature.idaho.gov in October 2026.
  5. Idaho registered agent statute was confirmed against legislature.idaho.gov in October 2026.
  6. Mainstay Filing Idaho service page, pulled November 13, 2026
  7. ID Registered Agent.org pricing page, pulled November 13, 2026
  8. Idaho Registered Agent.co pricing page, pulled November 13, 2026