The essentials · Colorado
3 Best Foreign Registration Services in Colorado (2026) and What Colorado Requires
At a glance
- State fee to register
- $100
- Home certificate?
- Not needed
- After registering
- $25, periodic report
- Our pick
- Mainstay Filing, Colorado Registered Agent.co then CO Registered Agent.org
Ranked in Colorado
Prices come from each company's own page. Method.1. Mainstay Filing: best for adding more states
Register for $199. Agent renewal $149
Mainstay Filing comes first because Colorado's fee plus $199 gets you registered, with no registered agent bill until year two.
Colorado Registered Agent.co costs $100 less over three years. It works only in Colorado.
No registered agent fee in year one, then $149 a year.
Includes
- Registration, filed
- Registered agent, no charge the first year
- One fee for all fifty states
Good
- No registered agent fee in year one
- $199 plus Colorado's fee
- Ready for the next state
Against
- Colorado Registered Agent.co renews its agent $50 lower
2. Colorado Registered Agent.co: best for one extra state
Register for $199. Agent renewal $99
Colorado Registered Agent.co ranks second. $199 files the registration, and the agent renews at $99.
Includes
- Colorado registration filing
- Agent for year one
Good
- Year one of the agent comes with it
- Agent renews at $99
- $199 plus the state fee
Against
- Two states, two providers
3. CO Registered Agent.org: best for one more state only
Register for $199. Agent renewal $99
CO Registered Agent.org ranks third. $199 files the registration, and the agent renews at $99.
Its prices match Colorado Registered Agent.co exactly. The order between them is close.
Includes
- Colorado registration filing
- Agent for year one
Good
- $199 plus the state fee
- Year one of the agent comes with it
- Agent renews at $99
Against
- Two states, two providers
Side by side
| # | Company | Start | After year one | Total | Includes | |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | $199 | $149/yr | $497 | Registration, filed; registered agent, no charge the first year; one fee for all fifty states | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | Colorado Registered Agent.co | $199 | $99/yr | $397 | colorado registration filing; agent for year one | Visit Colorado Registered Agent.coPartner link. We may earn money if you buy. |
| 3 | CO Registered Agent.org | $199 | $99/yr | $397 | colorado registration filing; agent for year one | Visit CO Registered Agent.orgPartner link. We may earn money if you buy. |
Key questions
Must my LLC register here?
Before it does business in Colorado. Register with the Colorado Secretary of State, Business Program first.
Without registration, an LLC may face penalties up to $5,000.
from coloradosos.gov, October 2026, kept short
What does registration cost?
$100 to the state. $199 more if someone files for you.
Three years of state fees, registration included: $150. from coloradosos.gov, October 2026, kept short
Which form, and where?
The Statement of Foreign Entity Authority goes to the Colorado Secretary of State, Business Program. One filing registers the LLC.
This registration is filed without a good standing certificate.
Is there a filing that repeats?
Next comes the periodic report, at $25.
The state's timing: once a year, by the end of the second month after your report month.
What put the first pick first?
Mainstay Filing wins on work included. That check carries 27%.
Five checks: three-year cost (38%), work included (27%), readable pricing (13%), renewal steadiness (11%) and state coverage (11%).
Colorado Registered Agent.co covers Colorado only. The home state needs someone else.
What Colorado requires to register
| Requirement | Rule or amount | Source |
|---|---|---|
| Fee to register | $100 | from coloradosos.gov, October 2026, kept short |
| Good standing certificate | Not needed | from coloradosos.gov, October 2026, kept short |
| Periodic report | $25 | from coloradosos.gov, October 2026, kept short |
| State fees, three years | $150 | Sum of the rows above |
Also asked
Does the home state need its own agent?
Yes. Each state has its own rule. Mainstay Filing can serve both from one account.
What do the picks cost over three years?
Across three years: Mainstay Filing at $497, Colorado Registered Agent.co at $397, CO Registered Agent.org at $397, before state fees.
Where do the figures come from?
State fees come from Colorado's official documents. Service prices come from each company's price page. Both are dated here.
Must I use a service?
Not required. The state takes filings from owners.
Can I hire someone to register?
All of them do. Only the service fee differs.
What is the best foreign registration service in Colorado?
Put Mainstay Filing first, and Colorado Registered Agent.co and CO Registered Agent.org after.
References
- Charter Simple keeps Colorado Secretary of State on file from sos.state.co.us, confirmed August 2026, and nothing more
- Charter Simple keeps Colorado Secretary of State on file from sos.state.co.us, confirmed August 2026, and nothing more
- Charter Simple keeps Colorado yearly filing: Periodic report on file from coloradosos.gov, confirmed October 2026, and nothing more
- Charter Simple keeps Colorado report due date on file from colorado.public.law, confirmed August 2026, and nothing more
- Charter Simple keeps Colo on file from sos.state.co.us, confirmed August 2026, and nothing more
- Charter Simple keeps Colorado formation fee: Filing fee on file from coloradosos.gov, confirmed October 2026, and nothing more
- Charter Simple keeps Colorado Secretary of State, foreign on file from coloradosos.gov, confirmed October 2026, and nothing more
- Charter Simple keeps Sample Statement of Foreign Entity on file from coloradosos.gov, confirmed October 2026, and nothing more
- Charter Simple keeps Colorado Revised Statutes 2024, Title on file from content.leg.colorado.gov, confirmed October 2026, and nothing more
- Charter Simple keeps Registered agent requirements effective July on file from coloradosos.gov, confirmed October 2026, and nothing more
- The Mainstay Filing Colorado service page, on November 13, 2026
- The Colorado Registered Agent.co pricing page, on November 13, 2026
- The CO Registered Agent.org pricing page, on November 13, 2026