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Foreign registration worksheets · Colorado

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

The 2026 math for Colorado foreign registration services gives Colorado Registered Agent.co ($199), Mainstay Filing ($199) and CO Registered Agent.org ($199), ranked best value first. Do the sum: $397 to $497 in service fees by year three, plus $100 to the state for registering.
Worked by the Formation Math editorial team

↓ Sorted by: Total cost over three years (42%), items covered per dollar (28%), then year-two change, crossover year and published detail. The method

Results box

Registration fee $100 coloradosos.gov (checked October 2026) as the source
First-year results $199 State fee not added
Totals after three years $397 to $497 First year + 2 renewals
Three-year state total $150 The same whoever registers
Where rows cross Does not occur The order stays put for ten years

The Colorado rows

Prices are copied from each company's own pricing. The $100 state fee is added separately.

1
Highest score

1. Colorado Registered Agent.co: best for adding exactly one state

$199 to register, $99 each year after
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

Colorado Registered Agent.co comes out on top. Working: $199 beyond the state fee, year-one agent included, then $99 a year.

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

The price buys

  • The Colorado registration filing
  • Year-one agent service

Adds up

  • Agent included to start
  • $199 over the state fee
  • A small $99 renewal

Does not add up

  • Nothing outside this state
2
Nationwide

2. Mainstay Filing: best for the same fee in every state

$199 to register, $149 each year after
Year-1 price $199
Price after year 1 $149/yr
Sum of 3 years $497

Mainstay Filing scores second. Working: $199 plus the state's fee, a free first year of registered agent, then $149 a year.

Do the subtraction: three years here minus three years at Colorado Registered Agent.co leaves $100.

The agent line starts in year two at $149 a year, in any state.

The price buys

  • Registration papers, prepared and filed
  • Registered agent with no charge in year one
  • Valid in all fifty states

Adds up

  • The first agent year is covered
  • Service charge of $199
  • Same fee wherever you register

Does not add up

  • $50 more each year for the agent
3
Colorado only

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

$199 to register, $99 each year after
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

CO Registered Agent.org scores third. Working: $199 beyond the state fee, year-one agent included, then $99 a year.

No difference in price from Colorado Registered Agent.co.

The price buys

  • The Colorado registration filing
  • Year-one agent service

Adds up

  • Agent included to start
  • $199 over the state fee
  • A small $99 renewal

Does not add up

  • Nothing outside this state

Cumulative cost, year by year

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Colorado Registered Agent.co $199 $298 $397 $595 Visit Colorado 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 CO Registered Agent.org $199 $298 $397 $595 Visit CO 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

Change the years to redo the addition.

Sum after 3 years: Colorado Registered Agent.co $397, Mainstay Filing $497, CO Registered Agent.org $397. The least spent: Colorado Registered Agent.co.

The state's side of the math, Colorado

Term Value Where it comes from
Registration charge $100 coloradosos.gov (checked October 2026) as the source
Periodic report $25 coloradosos.gov (checked October 2026) as the source
State fees added over 3 years $150 Calculated from the rows above

Our state figure adds three things: the filing, two years of reports and a minimum tax where there is one. Variable costs like publication stay out.

How the ranking worked out

For Colorado, the term that decided it was three-year total (42% of the score), where Colorado Registered Agent.co came out ahead.

$397 over three years for Colorado Registered Agent.co, which saves $100 compared with Mainstay Filing.

Colorado foreign LLC registration fee and rules, from the source

To register, file the Statement of Foreign Entity Authority at the Colorado Secretary of State, Business Program and pay $100.

Without registration: fines up to $5,000.

Cited at: coloradosos.gov (checked October 2026) as the source

The no-service row

With no service, three years cost $150 in state fees. Each service adds its own row, $397 to $497 over the same period.

Colorado price questions, answered

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

$100 in state fees, before service fees of $199.

What do the services add up to over three years?

$397 to $497 across the rows, not counting state fees.

Which form does the registering?

The form is Statement of Foreign Entity Authority, and the Colorado Secretary of State, Business Program receives it.

What recurring filing comes after registration?

The periodic report, which costs $25.

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

Not within ten years; no row passes another.

Which foreign registration service is best value in Colorado?

From the top: Colorado Registered Agent.co, Mainstay Filing and CO Registered Agent.org.

See also

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

Inputs and sources

  1. Colorado Secretary of State, per sos.state.co.us, August 2026.
  2. Colorado Secretary of State, per sos.state.co.us, August 2026.
  3. Colorado yearly filing: Periodic report, per coloradosos.gov, October 2026.
  4. Colorado report due date, per colorado.public.law, August 2026.
  5. Colo, per sos.state.co.us, August 2026.
  6. Colorado formation fee: Filing fee, per coloradosos.gov, October 2026.
  7. Colorado Secretary of State, foreign, per coloradosos.gov, October 2026.
  8. Sample Statement of Foreign Entity, per coloradosos.gov, October 2026.
  9. Colorado Revised Statutes 2024, Title, per content.leg.colorado.gov, October 2026.
  10. Registered agent requirements effective July, per coloradosos.gov, October 2026.
  11. The Colorado Registered Agent.co pricing page supplied the prices on November 13, 2026
  12. The Mainstay Filing Colorado service page supplied the prices on November 13, 2026
  13. The CO Registered Agent.org pricing page supplied the prices on November 13, 2026