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What a registered agent costs by state / Colorado

3 Best Registered Agents in Colorado (2026): What You Pay

For 2026, we would price out Colorado Registered Agent.co ($99/yr), Mainstay Filing ($149/yr) and CO Registered Agent.org ($99/yr), in that order, before any other Colorado registered agents. Your first year of agent service will cost $99 to $149, and three years will cost $297 to $447.
Written by the Price Your LLC editorial team

↓ Ranked for you by: Best value for you comes first, using our five-part ranking

Colorado at a glance

Must you name one? Yes sos.state.co.us (we looked on October 2026, so you can too)
First-year prices $99 to $149 Per year
Three-year range $297 to $447 Opening year plus two more
Periodic report $25 a year coloradosos.gov (we looked on October 2026, so you can too)
Prices swap in Does not happen Ranking steady to year 10

Ranked for you

Service prices only. Whichever agent you name, you pay the state the same.

1
Our top pick

1. Colorado Registered Agent.co: best for LLCs that never leave one state

Starts at $99 and renews at $99
You pay in year 1 $99
You pay at renewal $99/yr
You pay over 3 years $297

In Colorado, Colorado Registered Agent.co is where your money goes furthest, since $99 yearly, with a street address in the state on file.

Cost settles it: you pay less over three years here than with Mainstay Filing.

Your price covers

  • A street address inside the state
  • Web copies of legal papers

What you get

  • Annual price below the national option
  • $99 a year, no change at renewal

What to watch

  • No help outside the state
  • Does not cover the periodic report
2
All fifty states

2. Mainstay Filing: best for a nationwide agent

Starts at $149 and renews at $149
You pay in year 1 $149
You pay at renewal $149/yr
You pay over 3 years $447

Next, Mainstay Filing: $149 a year here, and the same in every other state you might add.

Colorado Registered Agent.co costs you $150 less over three years, enough to rank higher.

Your price covers

  • A street address located in the state
  • Up to three government mailings a year, scanned for you free
  • Covers LLCs, corporations, LPs, LLPs and nonprofits

What you get

  • One account for any state
  • Constant $149 per year

What to watch

  • $50 more per year than the local option
  • You still do the reports
3
Local option

3. CO Registered Agent.org: best for a local backup

Starts at $99 and renews at $99
You pay in year 1 $99
You pay at renewal $99/yr
You pay over 3 years $297

CO Registered Agent.org ranks third. $99 yearly, with a street address in the state on file.

No price gap from Colorado Registered Agent.co.

Your price covers

  • A street address inside the state
  • Web copies of legal papers

What you get

  • Annual price below the national option
  • $99 a year, no change at renewal

What to watch

  • No help outside the state
  • Does not cover the periodic report

Year-by-year totals

Pick Service You pay in year 1 You pay by year 2 You pay by year 3 You pay by year 5
1 Colorado Registered Agent.co $99 $198 $297 $495 Price out Colorado Registered Agent.co Partner link. We may earn money if you buy.
2 Mainstay Filing $149 $298 $447 $745 Price out Mainstay Filing Partner link. We may earn money if you buy.
3 CO Registered Agent.org $99 $198 $297 $495 Price out CO Registered Agent.org Partner link. We may earn money if you buy.

Prices as published November 13, 2026; you pay year one first, then each renewal is added. The order of totals stays put for ten years.

Try your own timeline

Change the years and see what you would pay.

3 years of fees add up to Colorado Registered Agent.co $297, Mainstay Filing $447, CO Registered Agent.org $297. Your smallest total: Colorado Registered Agent.co.

Colorado fee list

What you pay for Amount Source
Filing to form your LLC $50 coloradosos.gov (we looked on October 2026, so you can too)
Periodic report $25 every year coloradosos.gov (we looked on October 2026, so you can too)
Late fee $50 coloradosos.gov (we looked on October 2026, so you can too)
State fees over three years $100 Filing, reports and any tax

Each line links to the state's own page. Together they give you the three-year state total: filing, reports in years two and three, and a minimum tax if there is one.

Notes on the order

Weight 38%: your three-year spend. That factor separated the top two.

The three-year column shows $297 for Colorado Registered Agent.co, $150 lower than Mainstay Filing.

What Colorado requires of your registered agent (Colorado Secretary of State)

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

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.

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.

As written: sos.state.co.us (we looked on October 2026, so you can too)

Doing it alone

Without a service, your agent cost is zero provided you qualify, and state charges do not change. Services run $99 to $149 a year.

Common questions

How much will a Colorado registered agent cost me per year?

About $99 to $149 yearly.

What do three years of agent service cost?

$297 to $447 across the services, not counting state fees.

Do I have to have a registered agent for a Colorado LLC?

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

Can I be my own registered agent?

You can, provided you meet both the address and eligibility rules.

What will the state charge my LLC each year?

Once your LLC exists, Colorado will bill you for the periodic report each year at $25, last day of the entity's anniversary month.

When does one service end up costing more than another?

They keep one order for ten years.

Which registered agent is the best value for me in Colorado?

Start with Colorado Registered Agent.co, then Mainstay Filing, then CO Registered Agent.org.

Where to go next

What a registered agent costs by state for all 50 states Best registered agents for anyone How we rank your options

Where we looked

  1. Colorado Secretary of State traces back to sos.state.co.us; we looked in August 2026.
  2. Colorado Secretary of State traces back to sos.state.co.us; we looked in August 2026.
  3. Colorado yearly filing: Periodic report traces back to coloradosos.gov; we looked in October 2026.
  4. Colorado report due date traces back to colorado.public.law; we looked in August 2026.
  5. Colo traces back to sos.state.co.us; we looked in August 2026.
  6. Colorado formation fee: Filing fee traces back to coloradosos.gov; we looked in October 2026.
  7. We read Colorado Registered Agent.co's pricing page on November 13, 2026
  8. We read Mainstay Filing's Colorado service page on November 13, 2026
  9. We read CO Registered Agent.org's pricing page on November 13, 2026