3 Best Foreign Registration Services in Colorado (2026): Your Questions Answered
Wondering about foreign registration services in Colorado, for 2026 our order is Mainstay Filing ($199), CO Registered Agent.org ($199) and Colorado Registered Agent.co ($199). Registering costs $100 at Colorado for every filer, and services add $397 to $497 over three years.
Answered by the Ask About LLC editorial team ·
The short answers
What does the state charge to register?
$100
Do you bring a certificate from home?
Not needed
Once registered
$25, periodic report
Who to ask
Mainstay Filing, CO Registered Agent.org then Colorado Registered Agent.co
Registering costs $100 at the state, plus $199 if you hire help.
By year three the state will have collected $150. coloradosos.gov, read in October 2026 for this answer
Which form do I file, and with whom?
Send the Statement of Foreign Entity Authority to the Colorado Secretary of State, Business Program; the registration is complete when it accepts the filing.
Good news: this registration does not call for a good standing certificate from home.
Is there a filing that repeats?
Down the road there is the periodic report, which costs $25.
Timing, in the state's words: once a year, by the end of the second month after your report month.
What put number one on top?
Chores the price takes care of counts 29%, and Mainstay Filing leads there.
We weigh five questions: what you pay over three years (33%), chores the price takes care of (29%), answers on the price page (14%), what happens at renewal (13%) and room to add states (11%).
Your home state needs an agent too, so one account covering both is simpler.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Questions people also ask
Do I still need an agent in my home state?
Yes, and the two states do not share a rule book. Mainstay Filing works in both, so one account can cover the home state and this one.
What do the picks cost over three years?
Three-year totals: Mainstay Filing $497, CO Registered Agent.org $397, Colorado Registered Agent.co $397, before state fees.
Where do these numbers come from?
Official Colorado sources back the state side, and posted company prices back the service side.
Does the law require a service?
Not at all. The state takes filings from owners directly. A service just saves you time, and it can double as your agent.
Will a service file the registration for me?
Yes, filing is part of what each company on this page sells, and the state's fee is identical whoever sends it.
Which one do you recommend in Colorado?
Ask Mainstay Filing first, then compare CO Registered Agent.org and Colorado Registered Agent.co.
Where did we look this up?
Ask-about note for Colorado Secretary of State: the state publishes it at sos.state.co.us, confirmed August 2026, so you can look it up yourself
Ask-about note for Colorado Secretary of State: the state publishes it at sos.state.co.us, confirmed August 2026, so you can look it up yourself
Ask-about note for Colorado yearly filing: Periodic report: the state publishes it at coloradosos.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Colorado report due date: the state publishes it at colorado.public.law, confirmed August 2026, so you can look it up yourself
Ask-about note for Colo: the state publishes it at sos.state.co.us, confirmed August 2026, so you can look it up yourself
Ask-about note for Colorado formation fee: Filing fee: the state publishes it at coloradosos.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Colorado Secretary of State, foreign: the state publishes it at coloradosos.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Sample Statement of Foreign Entity: the state publishes it at coloradosos.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Colorado Revised Statutes 2024, Title: the state publishes it at content.leg.colorado.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Registered agent requirements effective July: the state publishes it at coloradosos.gov, confirmed October 2026, so you can look it up yourself
The Mainstay Filing Colorado service page, as it stood on November 13, 2026
The CO Registered Agent.org pricing page, as it stood on November 13, 2026
The Colorado Registered Agent.co pricing page, as it stood on November 13, 2026