What it means · Colorado
3 Best Registered Agents in Colorado (2026): What You Get
Summary
- Must you have one?
- Yes, by law
- Name in state law
- Registered agent
- Service pricing
- $99 to $149 each year
- Where we would start
- Mainstay Filing, CO Registered Agent.org then Colorado Registered Agent.co
Services we would pick in Colorado
Order and weights are explained on how we pick.1. Mainstay Filing: best for LLCs likely to expand
Annual price $149, with a renewal price of $149
The reason Mainstay Filing leads here is that the price is $149 a year wherever the LLC is registered.
CO Registered Agent.org would save $150 over three years but covers Colorado only.
Includes
- An in-state street address
- Three government mailings a year scanned at no charge
- Serves LLCs, corporations, LPs, LLPs and nonprofits
Points in its favor
- $149 a year, unchanged at renewal
- The price is the same in all fifty states
Where it falls short
- Pricier by $50 per year
- The agent role is all you get
2. CO Registered Agent.org: best for budget-minded owners
Annual price $99, with a renewal price of $99
CO Registered Agent.org takes the second slot: its agent service is $99 a year and includes a street address on file.
Includes
- A local address on record
- Document scans in your account
Points in its favor
- $99 per year
- Costs less each year than Mainstay Filing
Where it falls short
- Another state needs another agent
- The periodic report remains your task
3. Colorado Registered Agent.co: best for local support
Annual price $99, with a renewal price of $99
Colorado Registered Agent.co takes the third slot: its agent service is $99 a year and includes a street address on file.
The prices match CO Registered Agent.org, so pick the one you prefer.
Includes
- A local address on record
- Document scans in your account
Points in its favor
- Costs less each year than Mainstay Filing
- $99 per year
Where it falls short
- Another state needs another agent
- The periodic report remains your task
Compare prices
| # | Company | Year one | Year two on | Total, 3 years | What you get | |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | $149 | $149/yr | $447 | An in-state street address; three government mailings a year scanned at no charge; Serves LLCs, corporations, LPs, LLPs and nonprofits | Open Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | CO Registered Agent.org | $99 | $99/yr | $297 | A local address on record; document scans in your account | Open CO Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | Colorado Registered Agent.co | $99 | $99/yr | $297 | A local address on record; document scans in your account | Open Colorado Registered Agent.coPartner link. We may earn money if you buy. |
Explanations
Must the LLC have a registered agent?
Every LLC must name a registered agent with an in-state street address.
Statute: C.R.S. § 7-90-701. as of October 2026: sos.state.co.us
Who is allowed to be the 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.
Qualify, and you do not need to pay for an agent.
How much should I budget for an agent?
Budget $99 to $149 each year, $297 to $447 for three years.
Choosing a different agent does not change any state fee.
Why does the state require one?
It stands in for the LLC in Colorado when legal papers or state mail show up.
A service is only as useful as its forwarding, so ask how documents reach you. More about service of process
What else comes due each year?
Plan on $25 every year for the periodic report. The state sets the deadline as last day of the entity's anniversary month; put it in your calendar.
as of October 2026: coloradosos.gov
How did you order the services?
Mainstay Filing leads on how much work the price handles, a criterion that carries 28% of the weight.
Five criteria set the order: what three years cost (34%), how much work the price handles (28%), prices spelled out (16%), renewal terms (12%) and reach beyond one state (10%).
Coverage settled it: all fifty states against one.
Official Colorado requirements
| Requirement | Detail | Reference |
|---|---|---|
| Filing fee | $50 | as of October 2026: coloradosos.gov |
| Registered agent | Yes, by law | as of October 2026: sos.state.co.us |
| Periodic report | $25 every year | as of October 2026: coloradosos.gov |
| Three-year state total | $100 | Added up from the rows above |
Other things people ask
Can I name myself?
You may, once you meet the state's rules on who can serve and where.
What counts as an acceptable 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.
What does each pick cost across three years?
Mainstay Filing: $447 | CO Registered Agent.org: $297 | Colorado Registered Agent.co: $297
How do you know these fees?
State fees come from Colorado's official sources, cited by each figure. Service prices come from each company's own pricing page.
Could I skip the service?
No. The state takes filings from owners directly; a service just saves time and covers the agent role.
Who would you hire first in Colorado?
Mainstay Filing ranks first on how much work the price handles, ahead of CO Registered Agent.org and Colorado Registered Agent.co.
Documents and pricing pages behind this page
- sos.state.co.us: Colorado Secretary of State (confirmed August 2026)
- sos.state.co.us: Colorado Secretary of State (confirmed August 2026)
- coloradosos.gov: Colorado yearly filing: Periodic report (confirmed October 2026)
- colorado.public.law: Colorado report due date (confirmed August 2026)
- sos.state.co.us: Colo (confirmed August 2026)
- coloradosos.gov: Colorado formation fee: Filing fee (confirmed October 2026)
- Fetched November 13, 2026: the Mainstay Filing Colorado service page
- Fetched November 13, 2026: the CO Registered Agent.org pricing page
- Fetched November 13, 2026: the Colorado Registered Agent.co pricing page