Ranked quotes
Service prices only. The $50 state fee applies to every quote.
1. Mainstay Filing: best for the most filings handled per dollar
Best reading
$199 yearly, $249 due at checkout with the state fee
- Opening quote
- $199
- Quote from year 2
- $199/yr
- Reading at year 3
- $597
Mainstay Filing reads best in Colorado: $199/yr includes the periodic report, with no movement at renewal.
Colorado Registered Agent.co saves $200 over three years and leaves more filings with you.
You never prepare the periodic report; only the $25 state fee is added.
Quote includes
- Articles of organization, filed
- Registered agent, for twelve months
- Periodic report, filed as it falls due
- The EIN application, prepared
- Government fee, no markup
Reads well
- EIN application covered
- No increase on renewal ($199)
- $199 per year, all included
Reads poorly
- Yearly premium over Colorado Registered Agent.co: $100
2
2. Colorado Registered Agent.co: best for a bare start
Colorado only
$199 and fees; renewal $99
- Opening quote
- $199
- Quote from year 2
- $99/yr
- Reading at year 3
- $397
Next on the board, Colorado Registered Agent.co: $199 in the first year, $99 in every year after.
Filing the periodic report stays with you.
Quote includes
- Formation delivered to the state office
- Agent service for the first year
Reads well
- Year-one agent covered
- $199 over the state fee
- Then $99 a year
Reads poorly
- Quote leaves out the periodic report
- EIN application not included ($99)
3
3. CO Registered Agent.org: best for a small agent renewal
Colorado only
$199 and fees; renewal $99
- Opening quote
- $199
- Quote from year 2
- $99/yr
- Reading at year 3
- $397
Next on the board, CO Registered Agent.org: $199 in the first year, $99 in every year after.
Filing the periodic report stays with you.
No price difference from Colorado Registered Agent.co.
Quote includes
- Formation delivered to the state office
- Agent service for the first year
Reads well
- Year-one agent covered
- Then $99 a year
- $199 over the state fee
Reads poorly
- Quote leaves out the periodic report
- EIN application not included ($99)
Cumulative cost by year
Sampled November 13, 2026. Each column picks up one more renewal. The ranking by cumulative cost is stable for ten years.
Bench calculator
Readings for 1 to 5 years, EIN application optional. State fees are left out because they match on every quote.
State fees with citations
Every state row cites its official source. The three-year total combines the filing, the second-year and third-year reports and any minimum tax.
The reading behind Colorado
Weight 30%: filings handled per dollar. That term separated the top two quotes.
Colorado Registered Agent.co reads lower over three years but leaves the periodic report with you.
With the EIN application added, Mainstay Filing's cumulative cost passes Colorado Registered Agent.co's in year 2.
Colorado LLC filing fee and requirements, quoted from the source
For $50, the LLC comes into existence through the Articles of Organization, delivered to the Colorado Secretary of State. Every LLC must name a registered agent with an in-state street address.
Reference: coloradosos.gov (logged October 2026) for the record
Filing it yourself, measured
Cost of filing yourself: $100 to the state over three years. Service readings of $397 to $597 are the price of avoiding the forms.
Questions
What do LLC formation services charge in Colorado?
$199 for year one across our quotes, plus the state's $50 fee.
What do the quotes add up to over three years?
Service readings after three years: $397 to $597.
How much does Colorado take to file an LLC?
Filing costs $50, using the Articles of Organization.
What does Colorado bill each year after formation?
Periodic report: $25 a year, with the deadline stated as last day of the entity's anniversary month.
Is the EIN application part of the quote?
it is part of Mainstay Filing, $99 extra at Colorado Registered Agent.co and $99 extra at CO Registered Agent.org.
When does one quote pass another in total cost?
No break-even inside ten years.
Which LLC formation service ranks best in Colorado?
Mainstay Filing ranks first. Colorado Registered Agent.co and CO Registered Agent.org follow.
Logged references
- Bench note on Colorado Secretary of State: sos.state.co.us, August 2026.
- Bench note on Colorado Secretary of State: sos.state.co.us, August 2026.
- Bench note on Colorado yearly filing: Periodic report: coloradosos.gov, October 2026.
- Bench note on Colorado report due date: colorado.public.law, August 2026.
- Bench note on Colo: sos.state.co.us, August 2026.
- Bench note on Colorado formation fee: Filing fee: coloradosos.gov, October 2026.
- November 13, 2026 sample from the Mainstay Filing Colorado service page
- November 13, 2026 sample from the Colorado Registered Agent.co pricing page
- November 13, 2026 sample from the CO Registered Agent.org pricing page