3 Best Registered Agents in Colorado (2026): Your Questions Answered
Wondering about registered agents in Colorado, for 2026 our order is Mainstay Filing ($149 a year), Colorado Registered Agent.co ($99 a year) and CO Registered Agent.org ($99 a year). Prices open at $99 to $149 for year one and reach $297 to $447 by year three.
Answered by the Ask About LLC editorial team ·
The short answers
Do you have to name an agent?
Yes, name one
Title in the statute
Registered agent
Typical agent price
$99 to $149 a year
Who to ask
Mainstay Filing, Colorado Registered Agent.co then CO Registered Agent.org
Prices as of November 13, 2026. The state's own fees are in the checklist below.
Questions owners ask
Do I have to name a registered agent?
Every LLC must name a registered agent with an in-state street address.
The law behind it: C.R.S. § 7-90-701. sos.state.co.us, read in October 2026 for this answer
Who qualifies as an agent?
A person 18 or older whose home or usual place of business is in Colorado (since July 1, 2025 the person has to hold a Colorado driver's license or ID or otherwise verify residency), or a business entity in good standing with a usual place of business in Colorado. The agent has to consent.
When you fit the rule, the role can be yours for free.
How much does an agent cost?
$99 to $149 a year with the services we recommend, which works out to $297 to $447 over three years.
No state fee depends on which agent you name.
What does an agent do for the LLC?
The agent signs for lawsuits and state mail addressed to the LLC, using a street address in Colorado.
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.
Still wondering?
Can I be my own agent?
Yes, provided you meet the state's rules on who may serve and on the address, both laid out above.
What address does an agent need?
The address has to be a physical address in Colorado, either a home or a usual place of business. P.O. boxes are not accepted.
What do the picks cost over three years?
For three years you would pay $447 at Mainstay Filing, $297 at Colorado Registered Agent.co, $297 at CO Registered Agent.org
Where do these numbers come from?
Official Colorado sources back the state side, and posted company prices back the service side.
Do I have to use 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.
What is the best registered agent for Colorado?
Mainstay Filing comes first: the price is $149 a year here and exactly the same in every other state. Next are Colorado Registered Agent.co and CO Registered Agent.org.
Where did we look this up?
Our answer on Colorado Secretary of State rests on sos.state.co.us, a page we confirmed August 2026 and still point you to
Our answer on Colorado Secretary of State rests on sos.state.co.us, a page we confirmed August 2026 and still point you to
Our answer on Colorado yearly filing: Periodic report rests on coloradosos.gov, a page we confirmed October 2026 and still point you to
Our answer on Colorado report due date rests on colorado.public.law, a page we confirmed August 2026 and still point you to
Our answer on Colo rests on sos.state.co.us, a page we confirmed August 2026 and still point you to
Our answer on Colorado formation fee: Filing fee rests on coloradosos.gov, a page we confirmed October 2026 and still point you to
Mainstay Filing Colorado service page, read November 13, 2026
Colorado Registered Agent.co pricing page, read November 13, 2026
CO Registered Agent.org pricing page, read November 13, 2026