Best LLC Formation CompaniesOur #1: Northwest Registered Agent

Our picks · 2027

Best LLC Formation Service in Colorado

Colorado is one of the cheapest states: $50 to form an LLC online, processed in real time, and a $25 periodic report each year. With state fees this low, the service's renewal price is most of what you pay.

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Quick answer

  • Best overall: Northwest Registered Agent, lowest real first-year cost (from $39)
  • #2: Bizee, free filing with a free agent year (from $0)
  • #3: Inc Authority, free filing if you will cancel the agent (from $0)

Compared

LLC formation services compared (USD, checked Nov 12, 2026)
LLC formation serviceBest forStarts atOur scoreSign up
Northwest Registered AgentLowest real first-year cost$399.0/10Visit Northwest Registered Agent
BizeeFree filing with a free agent year$07.3/10Visit Bizee
Inc AuthorityFree filing if you will cancel the agent$06.4/10Visit Inc Authority
#1

Northwest Registered Agent

Lowest real first-year cost9.0/10Excellent

Northwest charges $39 plus the state fee and includes a year of registered agent service, an operating agreement and a business address to keep your home address off public filings. After year one the agent is $125 a year. It has one package, so there are no tiers to compare.

$39 + state fee

Pros

  • $39 includes a year of registered agent, an operating agreement and a business address
  • Registered agent renews at a flat $125/yr
  • Cancel any service in the portal with no fee

Cons

  • EIN is a $50 add-on ($200 without an SSN)
  • Annual report filing is auto-enrolled at $100 + state fee unless you opt out
  • Lower Trustpilot score (4.1, 318 reviews) than the big brands
#2

Bizee

Free filing with a free agent year7.3/10Good

Bizee, formerly Incfile, files your LLC for $0 and includes a free first year of registered agent service, then $149 a year. The $0 Basic plan is slow (Bizee quotes 4 to 6 weeks in total), and refunds end once your fee goes to the state, usually within 24 hours.

$0 + state fee

Pros

  • $0 Basic includes a free first year of registered agent
  • Registered agent renews at $149/yr, below ZenBusiness and LegalZoom
  • 4.8/5 on Trustpilot from 26,442 reviews

Cons

  • Basic takes about 4 to 6 weeks; Standard about 2 weeks
  • Refunds end once fees go to the state, usually within 24 hours
  • EIN ($70) and operating agreement ($99) cost extra on Basic
#3

Inc Authority

Free filing if you will cancel the agent6.4/10Fair

Inc Authority files your LLC for $0 and adds a free year of registered agent and the EIN. After year one the agent renews at $249, and to cancel it you must file an agent change with your state and send proof. Its paid bundles are sold only by phone.

$0 + state fee

Pros

  • $0 filing with a free first year of registered agent and the EIN
  • 60-day refund on the first online purchase, minus state fees
  • 4.8/5 on Trustpilot from 49,809 reviews; A+ BBB rating

Cons

  • Registered agent auto-renews at $249/yr, and reminders aren't guaranteed
  • To cancel the agent you must change agents with the state and send proof
  • Paid bundles and the operating agreement are sold by phone with no prices online

What it costs to form an LLC in Colorado

Item Colorado's number
Filing fee $50, online only; there is no paper option (CO SOS fees)
Periodic report $25 a year (same page)
Due date Your periodic report month; you can file two months early or two months late without penalty (CO periodic report FAQ)
Late report $50 penalty (CO SOS fees)
Processing time "Processed in real time and are available immediately after successful payment" (CO e-filing FAQ)
Rush option $150 for 3-business-day service, listed only as a paper fee

With a $50 filing and a $25 report, Colorado's state costs are small. The service's renewal price is where most of your money goes.

Year-one total with each pick

Service prices exclude state fees.

Pick Math Year one Year two (agent + report)
Northwest $50 + $39 + $50 EIN $139 $125 + $25 = $150
Bizee $50 + $0 Basic + $70 EIN + $99 operating agreement $219 $149 + $25 = $174
Inc Authority $50 + $0 (agent and EIN included) $50 $249 + $25 = $274

Why these picks for Colorado

Northwest wins over two years. Its $125 agent fee has not changed in 20 years, by its own account (Northwest agent), and there are no per-document charges.

Bizee is the middle path. Basic is $0 with a free agent year, but Bizee quotes 4 to 6 weeks in total for Basic (Bizee order form), a long wait in a state that files online instantly. Skip the $70 EIN and get one free from the IRS (IRS EIN) to bring year one to $149.

Inc Authority is the cheapest year one at $50 all in, since the agent and EIN are free for a year (Inc Authority). It only makes sense if you will drop its agent before renewal.

Colorado traps to avoid

Inc Authority's agent renews at $249, ten times the state report. To cancel, you must change agents with the state and send written proof before renewal, by phone at 877-684-2836 or email, and refunds are not pro-rated (Inc Authority terms). It also leaves out an operating agreement unless you buy a phone-sold bundle.

Don't pay a service to rush a Colorado filing. Online filings are already instant, and the $150 expedite fee applies to paper documents.

Use the two-month grace window, but not past it. After that, the $25 report carries a $50 penalty.

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