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What forming an LLC costs by state / Colorado

3 Best LLC Services in Colorado (2026): What You Pay

For 2026, we would price out Mainstay Filing ($199), Colorado Registered Agent.co ($199) and CO Registered Agent.org ($199), in that order, before any other Colorado LLC formation services. Set aside $50 for the Colorado filing fee, then $397 to $597 for three years of service.
Written by the Price Your LLC editorial team

↓ Ranked for you by: Your spend is 38% of the ranking and the work covered is 31% (more on this)

Budget snapshot

Government charge to file $50 coloradosos.gov (we looked on October 2026, so you can too)
First-year prices $199 State fee not included
Total after 3 years $397 to $597 Opening year plus two more
State fees by year three $100 Not part of the ranking
Crossover year Not within ten years Stable for a decade

Your Colorado options

Options sit in value order, with prices taken from company pages. The $50 state fee stays outside the service prices.

1
Our top pick

1. Mainstay Filing: best for never filing the periodic report yourself

$199 a year, with $249 due at checkout together with the state fee
You pay in year 1 $199
You pay after year 1 $199/yr
You pay over 3 years $597

Mainstay Filing is the best value for you in Colorado: $199 a year pays for the filing, the registered agent and the periodic report, and year two costs $199.

Choosing Colorado Registered Agent.co would leave $200 in your pocket over three years and more filings on your desk.

Colorado charges $25 for the periodic report, and the service hands that on with no markup.

Your price covers

  • Formation paperwork, completed
  • Registered agent for the whole year
  • Periodic report, filed on time
  • EIN application prepared for you
  • State fee at cost

What you get

  • EIN application included
  • One yearly price of $199
  • Year two costs $199

What to watch

  • From year two, $100 above Colorado Registered Agent.co
2
One-state service

2. Colorado Registered Agent.co: best for the smallest bill over three years

$199 for formation, $99 for the agent after that
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Option 2 is Colorado Registered Agent.co. $199 for year one, then $99 for every year after.

The periodic report is on you.

Your price covers

  • Formation handled for you
  • Agent service for your first year

What you get

  • Formation costs $199
  • Then $99 a year
  • Year-one agent covered

What to watch

  • Periodic report is not part of what you pay for
  • EIN application adds $99
3
One-state service

3. CO Registered Agent.org: best for owners who prepare their own reports

$199 for formation, $99 for the agent after that
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Option 3 is CO Registered Agent.org. $199 for year one, then $99 for every year after.

The periodic report is on you.

Year-one and renewal prices both equal Colorado Registered Agent.co's.

Your price covers

  • Formation handled for you
  • Agent service for your first year

What you get

  • Formation costs $199
  • Then $99 a year
  • Year-one agent covered

What to watch

  • Periodic report is not part of what you pay for
  • EIN application adds $99

Costs over time

Pick Service You pay in year 1 You pay by year 2 You pay by year 3 You pay by year 5
1 Mainstay Filing $199 $398 $597 $995 Price out Mainstay Filing Partner link. We may earn money if you buy.
2 Colorado Registered Agent.co $199 $298 $397 $595 Price out Colorado Registered Agent.co Partner link. We may earn money if you buy.
3 CO Registered Agent.org $199 $298 $397 $595 Price out CO Registered Agent.org Partner link. We may earn money if you buy.

Looked at November 13, 2026. Every column adds another renewal. Ranked by running total, the order is steady for ten years.

Cost calculator

Choose your years and the calculator adds year one to each renewal for every service, counting the EIN application when you tick it.

Your spend for 3 years: Mainstay Filing $597, Colorado Registered Agent.co $397, CO Registered Agent.org $397. Your smallest total: Colorado Registered Agent.co.

State fees with sources

What you pay for Amount Source
Articles filing $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)
Cost of missing the deadline $50 coloradosos.gov (we looked on October 2026, so you can too)
State fees summed, years 1 to 3 $100 Sum of the lines above

Think of the state total as one filing, two reports and a yearly minimum tax where it applies. Notices and similar costs are listed separately.

Why this order for Colorado

Weight 31%: upkeep the price covers. That factor separated the top two.

Colorado expects the periodic report every year, so a price that includes it beat a lower price that leaves it to you.

If you count the EIN application, Colorado Registered Agent.co costs you less from year 2.

What Colorado charges you to form an LLC and what it requires

$50 and the Articles of Organization, filed with the Colorado Secretary of State, bring your company into existence. Every LLC must name a registered agent with an in-state street address.

As written: coloradosos.gov (we looked on October 2026, so you can too)

What it costs without a service

If you file everything yourself, all you pay is the state: $100 over three years. A service piles $397 to $597 on top for the paperwork and the agent.

Common questions

How much will an LLC formation service cost me in Colorado?

Year one costs $199 before the $50 filing fee.

What will these services cost me over three years?

$397 to $597 in service fees, with state fees on top.

How much will Colorado charge me to file an LLC?

Plan on $50 to file with the Articles of Organization.

What will Colorado charge me each year after formation?

The cost that repeats is the periodic report, at $25 annually (last day of the entity's anniversary month).

Will the EIN application be part of the price?

Mainstay Filing handles it for you, Colorado Registered Agent.co asks $99 for it and CO Registered Agent.org asks $99 for it.

When does one service end up costing more than another?

Not within ten years: the order of the totals stays the same.

Which LLC formation service is the best value for me in Colorado?

Mainstay Filing, which wins on upkeep the price covers. Colorado Registered Agent.co and CO Registered Agent.org follow.

See also

What forming an LLC costs by state for all 50 states Best LLC services for anyone How we rank your options

Where we looked

  1. For Colorado Secretary of State, open sos.state.co.us (read August 2026).
  2. For Colorado Secretary of State, open sos.state.co.us (read August 2026).
  3. For Colorado yearly filing: Periodic report, open coloradosos.gov (read October 2026).
  4. For Colorado report due date, open colorado.public.law (read August 2026).
  5. For Colo, open sos.state.co.us (read August 2026).
  6. For Colorado formation fee: Filing fee, open coloradosos.gov (read October 2026).
  7. Colorado service page at Mainstay Filing, from November 13, 2026
  8. pricing page at Colorado Registered Agent.co, from November 13, 2026
  9. pricing page at CO Registered Agent.org, from November 13, 2026