The Colorado basics
19th
of 50 on what the state charges in one year
Registered agent required
Yes
Periodic report
$25 / yr
Deadline, as the state states it: last day of the entity's anniversary month.
coloradosos.gov (last confirmed October 2026)
What the state collects in 1 year
$25
One year of the report, plus any minimum tax
Colorado: the services we would choose
In order of weight: three-year fees, coverage, renewal terms, fit with Colorado, a clear state fee (
method).
Our top choice
1. Colorado Registered Agent.co: best for a small agent budget
You pay $99 in year 1 and $99 in year 2
Why Colorado Registered Agent.co is first: $99 a year buys an agent with a registered office inside the state.
Mainstay Filing costs more over three years, and that criterion is worth 33% of the score.
What your money gets you
- A street address for the registered office
- Legal papers are scanned and uploaded for you
What works
- $99 annually
- Under Mainstay Filing on the yearly price
What to weigh
- One state only
- What you pay for does not include the periodic report
All 50 states
2. Mainstay Filing: best for an agent you can keep in any state
You pay $149 in year 1 and $149 in year 2
Why Mainstay Filing is second: a flat $149 a year from a provider that works across the country.
A $150 gap to Colorado Registered Agent.co over three years is what keeps it out of first place.
What your money gets you
- A street address for your registered office
- Scans anything served on the company the same business day and does not charge for it
- Scans your first three government letters each year at no cost
- Also works for nonprofits, corporations, LPs and LLPs
What works
- Works in every state
- A flat $149 a year
What to weigh
- $50 a year more than Colorado Registered Agent.co
- It only covers the agent, and you send in the reports
Colorado specialist
3. CO Registered Agent.org: best for a registered office in the state
You pay $99 in year 1 and $99 in year 2
CO Registered Agent.org is third for you since $99 a year buys an agent with a registered office inside the state.
On price it is exactly level with Colorado Registered Agent.co.
What your money gets you
- A street address for the registered office
- Legal papers are scanned and uploaded for you
What works
- Under Mainstay Filing on the yearly price
- $99 annually
What to weigh
- One state only
- What you pay for does not include the periodic report
The ranking in numbers
Each company's own price page was open in front of us on November 13, 2026. Whichever agent you pick, Colorado's fees do not change.
Upkeep calculator
This adds agent fees to the state's recurring charges (the periodic report from year 2). Formation fees are not included.
How Colorado compares with the states near it in the ranking
What Colorado law says you need as a registered agent
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 can act as your 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. The law is C.R.S. § 7-90-701.
Colorado's recurring fees
Letters about your periodic report are sent to your registered agent. The cost is $25 every year, and the deadline is last day of the entity's anniversary month.
What decided the order
Price over three years decided first place in Colorado. It is 33% of the score, and the other criteria are upkeep the price covers, renewal terms, fit with the state, plain statement of the state fee.
Over three years you would pay Colorado Registered Agent.co $297 in fees ($150 below Mainstay Filing).
Quick answers
Do I have to name a registered agent for my Colorado LLC?
Yes. Every LLC must name a registered agent with an in-state street address.
Who is allowed to be a registered agent for my 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.
What will registered agent service cost me each year in Colorado?
Agents ranked here bill $99 to $149 annually.
Which state fees will I pay every year?
You will pay $25 a year on our yearly measure, which is the periodic report ($25 every year).
Which registered agents does this page rank?
Colorado Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and CO Registered Agent.org ($99 a year), in order, beginning with the first pick.
Which registered agent should I choose?
We would choose Colorado Registered Agent.co first ($99 a year with no jump at renewal, designed for a company that works in a single state), with Mainstay Filing and CO Registered Agent.org behind it.
Where this briefing comes from
- Behind the Colorado Secretary of State section is sos.state.co.us, a page we reread in August 2026 before publishing.
- Behind the Colorado Secretary of State section is sos.state.co.us, a page we reread in August 2026 before publishing.
- Behind the Colorado yearly filing: Periodic report, official source section is coloradosos.gov, a page we reread in October 2026 before publishing.
- Behind the Colorado report due date section is colorado.public.law, a page we reread in August 2026 before publishing.
- Behind the Colo section is sos.state.co.us, a page we reread in August 2026 before publishing.
- Behind the Colorado formation fee: Filing fee, official source section is coloradosos.gov, a page we reread in October 2026 before publishing.
- Behind the Utah Division of Corporations and Commercial Code section is corporations.utah.gov, a page we reread in August 2026 before publishing.
- Behind the Utah Division of Corporations and Commercial Code section is corporations.utah.gov, a page we reread in August 2026 before publishing.
- Behind the Montana Secretary of State fee page and fee section is sosmt.gov, a page we reread in October 2026 before publishing.
- Behind the Montana yearly filing: Annual report: fee, official source section is sosmt.gov, a page we reread in October 2026 before publishing.
- Behind the Montana yearly filing: Annual report: fee, official source section is sosmt.gov, a page we reread in October 2026 before publishing.
- Behind the Michigan Department of Licensing and Regulatory Affairs, Corporations section is michigan.gov, a page we reread in August 2026 before publishing.
- Behind the Michigan Department of Licensing and Regulatory Affairs, Corporations section is michigan.gov, a page we reread in August 2026 before publishing.
- Behind the Oklahoma Secretary of State, Business Filing Department section is sos.ok.gov, a page we reread in August 2026 before publishing.
- Behind the Oklahoma Secretary of State, Business Filing Department section is sos.ok.gov, a page we reread in August 2026 before publishing.
- We looked at the Colorado Registered Agent.co website on November 13, 2026 to confirm pricing page
- We looked at the Mainstay Filing website on November 13, 2026 to confirm Colorado service page
- We looked at the CO Registered Agent.org website on November 13, 2026 to confirm pricing page