Skip to content
State Biz Facts

Charts of what each state charges an LLC.

Registered agent guide · Colorado

Colorado Registered Agent Requirements (2026) and the 3 Best Agents

Mainstay Filing ($149 a year), Colorado Registered Agent.co ($99 a year) and CO Registered Agent.org ($99 a year) is the ranking we give for a registered agent in Colorado in 2026, best first. No Colorado LLC can skip a registered agent. Counting only what the state bills each year, the figure is $25, placing it 19th of 50.
Charted by the State Biz Facts team

Colorado fee chart

19th

of 50 states on the yearly state bill

Ordered from smallest bill to largest (shared spot). All states side by side
  • Registered agent required

    Yes

    sos.state.co.us (seen October 2026)
  • Periodic report

    $25 / yr

    Timing as the state words it: last day of the entity's anniversary month. coloradosos.gov (seen October 2026)
  • State total, one year

    $25

    A single year of state charges

Colorado top picks

The order follows five criteria described in the method: three-year provider charges (36%), filings covered (24%), renewal price, match to Colorado rules and fee labeling.

First stop

1. Mainstay Filing: best for businesses planning to spread out

Year one $149, year two $149

Spot one goes to Mainstay Filing: one agent price of $149 across all fifty states keeps a multi-state company to one bill.

Across three years it runs $150 above Colorado Registered Agent.co; with coverage weighted 24%, the extra filings it takes on more than cover the difference.

Price covers

  • A physical address on the public record
  • Court papers or notices served on the company are scanned the same business day, with no fee
  • Mail from government offices is scanned free, up to three pieces each year
  • Not just for LLCs: corporations, LPs, LLPs and nonprofits can use it

Upside

  • Valid in every state
  • Flat $149/yr

Downside

  • $50 extra each year compared with Colorado Registered Agent.co
  • The agent role only; you send in the reports
Visit Mainstay FilingPartner link. We may earn money if you buy.

One state only

2. Colorado Registered Agent.co: best for a business with one state to cover

Year one $99, year two $99

Placed second, Colorado Registered Agent.co offers $99 per year gets an agent whose office address is inside the state.

Price covers

  • Registered office address, Colorado street
  • Anything served is scanned and posted for you

Upside

  • Beneath Mainstay Filing on yearly price
  • $99 each year

Downside

  • Another state means another agent
  • No help with the periodic report
Visit Colorado Registered Agent.coPartner link. We may earn money if you buy.

One state only

3. CO Registered Agent.org: best for an office address in the state

Year one $99, year two $99

Placed third, CO Registered Agent.org offers $99 per year gets an agent whose office address is inside the state.

Colorado Registered Agent.co and this provider publish the same prices.

Price covers

  • Registered office address, Colorado street
  • Anything served is scanned and posted for you

Upside

  • $99 each year
  • Beneath Mainstay Filing on yearly price

Downside

  • Another state means another agent
  • No help with the periodic report
Visit CO Registered Agent.orgPartner link. We may earn money if you buy.

3 providers, side by side

OrderProviderPer yearAt renewalProvider charges, 3 years
1Mainstay Filing$149$149/yr$447Visit Mainstay FilingPartner link. We may earn money if you buy.
2Colorado Registered Agent.co$99$99/yr$297Visit Colorado Registered Agent.coPartner link. We may earn money if you buy.
3CO Registered Agent.org$99$99/yr$297Visit CO Registered Agent.orgPartner link. We may earn money if you buy.
Prices were taken from each company's own pages on November 12, 2026. Colorado's own charges stay the same whichever agent you name.

Agent budget calculator

Each agent's price is added to the state charges that repeat (the periodic report from year two). The formation fee is not part of the total.
With Mainstay Filing, 3 years add up to $497 ($50 state, $447 provider).

Colorado and the states beside it on the chart

SpotStateYearly state fees
17thUtah$18
18thMontana$20
19thColorado$25
19thMichigan$25
19thOklahoma$25
The entire chart is at Registered agent rules by state, smallest bills first.

Colorado registered agent requirements by statute

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 may be named: 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. Statute cited: C.R.S. § 7-90-701.

Charges that keep recurring

Each year brings the periodic report ($25), last day of the entity's anniversary month. The late charge is $50. Notices on it are sent to your registered agent.

How the Colorado ranking was drawn

Mainstay Filing wins on requirements handled, worth 24% of the total; Colorado Registered Agent.co follows.

Fifty-state coverage outweighed Colorado Registered Agent.co on our weights.

Questions answered

Is a registered agent required for every Colorado LLC?

Yes. Every LLC must name a registered agent with an in-state street address.

Who qualifies as the registered agent for a Colorado LLC?

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.

How much does Colorado registered agent service run each year?

$99 to $149 per year, going by the ranking above.

What does the state bill an LLC every year?

$25 per year by our yearly measure, which is the periodic report ($25 every year).

Which registered agents does this chart rank?

Mainstay Filing ($149 a year), Colorado Registered Agent.co ($99 a year) and CO Registered Agent.org ($99 a year), starting with our top pick.

Which registered agent should I use?

Our route runs through Mainstay Filing: $149 yearly, flat, from a provider that operates across the whole country. After it, Colorado Registered Agent.co and CO Registered Agent.org.

Where each number comes from

  1. Figure on Colorado Secretary of State: sos.state.co.us (seen August 2026).
  2. Figure on Colorado Secretary of State: sos.state.co.us (seen August 2026).
  3. Figure on Colorado yearly filing: Periodic report, official source: coloradosos.gov (seen October 2026).
  4. Figure on Colorado report due date: colorado.public.law (seen August 2026).
  5. Figure on Colo: sos.state.co.us (seen August 2026).
  6. Figure on Colorado formation fee: Filing fee, official source: coloradosos.gov (seen October 2026).
  7. Figure on Utah Division of Corporations and Commercial Code: corporations.utah.gov (seen August 2026).
  8. Figure on Utah Division of Corporations and Commercial Code: corporations.utah.gov (seen August 2026).
  9. Figure on Montana Secretary of State fee page and fee: sosmt.gov (seen October 2026).
  10. Figure on Montana yearly filing: Annual report: fee, official source: sosmt.gov (seen October 2026).
  11. Figure on Montana yearly filing: Annual report: fee, official source: sosmt.gov (seen October 2026).
  12. Figure on Michigan Department of Licensing and Regulatory Affairs, Corporations: michigan.gov (seen August 2026).
  13. Figure on Michigan Department of Licensing and Regulatory Affairs, Corporations: michigan.gov (seen August 2026).
  14. Figure on Oklahoma Secretary of State, Business Filing Department: sos.ok.gov (seen August 2026).
  15. Figure on Oklahoma Secretary of State, Business Filing Department: sos.ok.gov (seen August 2026).
  16. Colorado service page from Mainstay Filing (company page, November 12, 2026)
  17. Pricing page from Colorado Registered Agent.co (company page, November 12, 2026)
  18. Pricing page from CO Registered Agent.org (company page, November 12, 2026)