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Foreign registration worksheets · Idaho

3 Best Foreign Registration Services in Idaho (2026): Worked Prices

Worked out for 2026, the best-value foreign registration services in Idaho come to Idaho Registered Agent.co ($199), Mainstay Filing ($199) and ID Registered Agent.org ($199), in that order. Idaho takes $100 to register. Add the service rows, $397 to $497 over three years, to that.
Worked by the Formation Math editorial team

↓ Sorted by: Score = 42% three-year total + 28% coverage + three smaller terms (details)

Key results

State fee to register $100 legislature.idaho.gov (checked October 2026) as the source
Totals after one year $199 Before government fees
Sum of years 1 to 3 $397 to $497 Service fees only, 3 years
State sum, years 1 to 3 $100 Official amounts only
Year the lines meet No crossing No change in order

The Idaho rows

Service prices only. Add the $100 state fee to any row; it is identical for all.

1
Best value

1. Idaho Registered Agent.co: best for a low-total registration

$199 on top of the state's $100; renewals at $99
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

By the numbers, Idaho Registered Agent.co is best value in Idaho: $397 in service fees across three years.

It beats Mainstay Filing on the biggest term in the score, three-year total.

The price buys

  • Registration done for you
  • Year-one agent service

Adds up

  • Then $99 a year
  • No agent charge for year one
  • Starts at $199

Does not add up

  • Nothing outside this state
2
Covers the most items

2. Mainstay Filing: best for companies still growing

$199 on top of the state's $100; renewals at $149
Year-1 price $199
Price after year 1 $149/yr
Sum of 3 years $497

Mainstay Filing scores second. Working: $199 to file, no agent charge in year one, and the same price in each state.

On three-year total it is $100 behind Idaho Registered Agent.co.

Renewals for the agent are $149 a year, whichever state you pick.

The price buys

  • The foreign registration filing
  • Registered agent with no charge in year one
  • One fee wherever you register

Adds up

  • Same fee wherever you register
  • $199 above the state fee
  • First-year agent service included

Does not add up

  • $50 above Idaho Registered Agent.co at renewal
3
Idaho only

3. ID Registered Agent.org: best for a second in-state filer

$199 on top of the state's $100; renewals at $99
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

ID Registered Agent.org scores third. Working: $397 in service fees across three years.

No difference in price from Idaho Registered Agent.co.

The price buys

  • Registration done for you
  • Year-one agent service

Adds up

  • Then $99 a year
  • Starts at $199
  • No agent charge for year one

Does not add up

  • Nothing outside this state

What each row adds up to

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Idaho Registered Agent.co $199 $298 $397 $595 Visit Idaho Registered Agent.co Partner link. We may earn money if you buy.
2 Mainstay Filing $199 $348 $497 $795 Visit Mainstay Filing Partner link. We may earn money if you buy.
3 ID Registered Agent.org $199 $298 $397 $595 Visit ID Registered Agent.org Partner link. We may earn money if you buy.

Read November 13, 2026. Each column gets one more renewal. No break-even shows up in ten years.

Break-even check

The calculator adds year one and the renewals for every row once you choose the years.

Adding up 3 years: Idaho Registered Agent.co $397, Mainstay Filing $497, ID Registered Agent.org $397. The least spent: Idaho Registered Agent.co.

Official state amounts

Term Value Where it comes from
Registration charge $100 legislature.idaho.gov (checked October 2026) as the source
State fees added over 3 years $100 Calculated from the rows above

Each state row cites its official source. The 3-year total adds the filing, the year-2 and year-3 reports and any minimum tax.

What settled the order

Weight 42%: three-year total. That term separated the top two rows.

Idaho Registered Agent.co wins the cost term at $397 over three years, against $100 more for Mainstay Filing.

Idaho foreign LLC registration fee and rules, from the source

Idaho wants an LLC formed elsewhere to register before it does business there. The filing is the Foreign Registration Statement, sent to the Idaho Secretary of State, Business Services with $100. Include certificate of existence (certificate of good standing) from the home state from within the last 90 days.

Operating unregistered risks no lawsuits as plaintiff in Idaho courts until it registers (Idaho Code 30-21-502(b)).

Official wording: archive.sos.idaho.gov (checked October 2026) as the source

Without a service

Do it yourself and only state fees remain, $100 over three years. The service rows add $397 to $497 for the paperwork.

Quick answers

How much does Idaho take to register an out-of-state LLC?

$100 as the official fee, and our rows add $199.

What do the services add up to over three years?

Year one plus two renewals gives $397 to $497.

Which form does the registering?

The form is Foreign Registration Statement, and the Idaho Secretary of State, Business Services receives it.

Does Idaho ask for a paper from the home state?

Yes, and it must be under 90 days old: certificate of existence (certificate of good standing) from the home state.

What recurring filing comes after registration?

The annual report, which has no fee.

In what year does one service pass another in total cost?

They stay in the same order for ten years.

Which foreign registration service is best value in Idaho?

From the top: Idaho Registered Agent.co, Mainstay Filing and ID Registered Agent.org.

Keep working

Foreign registration worksheets, all 50 states Best foreign registration services overall The method

Inputs and sources

  1. Check Idaho yearly filing: Annual report at legislature.idaho.gov; last read October 2026.
  2. Check Idaho Code § 30-25-201 at legislature.idaho.gov; last read August 2026.
  3. Check Idaho formation fee: Filing fee at sos.idaho.gov; last read October 2026.
  4. Check Idaho formation fee: Filing fee at legislature.idaho.gov; last read October 2026.
  5. Check Idaho registered agent statute at legislature.idaho.gov; last read October 2026.
  6. Check Idaho Secretary of State, Foreign at archive.sos.idaho.gov; last read October 2026.
  7. Check Idaho Secretary of State, business at sos.idaho.gov; last read October 2026.
  8. Check Idaho Code 30-21-505, activities that at legislature.idaho.gov; last read October 2026.
  9. Check Idaho Code 30-21-213, annual report at legislature.idaho.gov; last read October 2026.
  10. Check Withdrawal of Foreign Registration Statement at archive.sos.idaho.gov; last read October 2026.
  11. Check Idaho Code 30-21-502, registration to at legislature.idaho.gov; last read November 2026.
  12. Input: Idaho Registered Agent.co pricing page (November 13, 2026)
  13. Input: Mainstay Filing Idaho service page (November 13, 2026)
  14. Input: ID Registered Agent.org pricing page (November 13, 2026)