Colorado Registered Agents (2026): Official Rules, State Fees and the 3 Best Agents
The 2026 Colorado entry for registered agent service names Mainstay Filing ($149 a year), CO Registered Agent.org ($99 a year) and Colorado Registered Agent.co ($99 a year), in that order. A registered agent must stay on file for every Colorado LLC. Yearly state charges total $25, which is 19th of 50.
Every LLC must name a registered agent with an in-state street address. 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.
Who qualifies as 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. (C.R.S. § 7-90-701)
Recurring charges on the state side
$25 every year for the periodic report, due last day of the entity's anniversary month; the state writes to your registered agent's address about it.
Why Mainstay Filing is listed first
What set Mainstay Filing above CO Registered Agent.org: requirements covered, at 28% of the score.
Fifty-state coverage outscored CO Registered Agent.org on our weights.
Quick answers
Is a registered agent compulsory in Colorado?
It is. Every LLC must name a registered agent with an in-state street address.
Who is allowed to act as the registered agent in Colorado?
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.
What does a Colorado registered agent charge each year?
Our picks cost $99 to $149 per year.
What does the state charge an LLC every year?
$25 a year on the almanac's yearly measure, which is the periodic report ($25 every year).
Which registered agents does this entry list?
Mainstay Filing ($149 a year), CO Registered Agent.org ($99 a year) and Colorado Registered Agent.co ($99 a year), best entry to last.
Which registered agent should I choose?
Our entry order: Mainstay Filing ($149 yearly here or anywhere else, renewing at $149), then CO Registered Agent.org and Colorado Registered Agent.co.