LLC formation cost calculators + Colorado
3 Best LLC Services in Colorado (2026): Cost Calculator
Result order: Sorted by a five-term formula where cost is 41% and coverage 27%
Main figures
Ranked results
1. CO Registered Agent.org: best for companies that stay in one state
Best resultCO Registered Agent.org calculates best. The three-year result is $397, because renewal is only $99.
On the heaviest term, three-year cost, it beats Mainstay Filing.
The periodic report would still be your filing.
Inputs covered
- Formation delivered to the state office
- Agent service for the first year
Adds up well
- A modest $99 renewal
- $199 plus the state fee
- Agent service at no cost in year one
Adds up badly
- The periodic report lands on your desk
- EIN application not included ($99)
2. Mainstay Filing: best for owners who want the upkeep handled
Most work coveredPosition 2 is Mainstay Filing: formation, registered agent and periodic report all fall inside $199 a year, renewing at $199.
CO Registered Agent.org calculates $200 lower over three years, enough to rank higher.
No periodic report for you to file; the only extra is the state's $25.
Inputs covered
- Articles of organization, filed
- Registered agent for the full year
- Periodic report, filed when due
- EIN application prepared
- Nothing added to state charges
Adds up well
- $199 a year covers filing and agent and report
- It prepares the EIN application
- Year two calculates to $199
Adds up badly
- Yearly premium over CO Registered Agent.org: $100
3. Colorado Registered Agent.co: best for a local formation service
In-state providerPosition 3 is Colorado Registered Agent.co: the three-year result is $397, because renewal is only $99.
The periodic report would still be your filing.
Input for input, it ties CO Registered Agent.org.
Inputs covered
- Formation delivered to the state office
- Agent service for the first year
Adds up well
- Agent service at no cost in year one
- $199 plus the state fee
- A modest $99 renewal
Adds up badly
- The periodic report lands on your desk
- EIN application not included ($99)
Results over time
| Rank | Service | Result, year 1 | Result, year 2 | Result, year 3 | Result, year 5 | |
|---|---|---|---|---|---|---|
| 1 | CO Registered Agent.org | $199 | $298 | $397 | $595 | Open CO Registered Agent.orgPartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | $199 | $398 | $597 | $995 | Open Mainstay FilingPartner link. We may earn money if you buy. |
| 3 | Colorado Registered Agent.co | $199 | $298 | $397 | $595 | Open Colorado Registered Agent.coPartner link. We may earn money if you buy. |
Break-even test
Colorado fee list
| Input | Amount | Source |
|---|---|---|
| Filing to form the LLC | $50 | coloradosos.gov {input read October 2026, shown in full} |
| Periodic report | $25 every year | coloradosos.gov {input read October 2026, shown in full} |
| Late fee | $50 | coloradosos.gov {input read October 2026, shown in full} |
| State fees summed, years 1 to 3 | $100 | Sum of the inputs above |
How the result came out
CO Registered Agent.org wins calculated three-year cost, worth 41%, with Mainstay Filing close behind.
CO Registered Agent.org takes the cost term at $397 over three years, and Mainstay Filing would need $200 more.
Add the EIN application as an input and Mainstay Filing's total passes CO Registered Agent.org's in year 2.
How Colorado describes its LLC filing fee and filing requirements
The company is formed when the Colorado Secretary of State accepts the Articles of Organization and $50. Every LLC must name a registered agent with an in-state street address.
Cited at: coloradosos.gov {input read October 2026, shown in full}
Without a service
Do-it-yourself result: $100 paid to the state across three years. A service at $397 to $597 is what avoiding the forms costs.
Quick answers
What do LLC formation services cost in Colorado?
Year one calculates to $199 before the $50 filing fee.
What do these services calculate to over three years?
Service results after three years: $397 to $597.
How much does Colorado charge to file an LLC?
Input $50 to file, using the Articles of Organization.
What does Colorado charge each year after formation?
The repeating input is the periodic report, at $25 annually (last day of the entity's anniversary month).
Is the EIN application part of the price?
CO Registered Agent.org, plus $99, Mainstay Filing, nothing added and Colorado Registered Agent.co, plus $99.
When does one service pass another in total cost?
They hold one order for ten years.
Which LLC formation service calculates best in Colorado?
Ranked results: CO Registered Agent.org, Mainstay Filing and Colorado Registered Agent.co.
Input sources
- Input for Colorado Secretary of State comes from sos.state.co.us, entered August 2026.
- Input for Colorado Secretary of State comes from sos.state.co.us, entered August 2026.
- Input for Colorado yearly filing: Periodic report comes from coloradosos.gov, entered October 2026.
- Input for Colorado report due date comes from colorado.public.law, entered August 2026.
- Input for Colo comes from sos.state.co.us, entered August 2026.
- Input for Colorado formation fee: Filing fee comes from coloradosos.gov, entered October 2026.
- pricing page figure supplied by CO Registered Agent.org, November 13, 2026
- Colorado service page figure supplied by Mainstay Filing, November 13, 2026
- pricing page figure supplied by Colorado Registered Agent.co, November 13, 2026