State Comparison

Colorado LLC vs Connecticut LLC (2026)

Compare Colorado LLC vs Connecticut LLC on filing fees, taxes, privacy laws, and annual costs. Find out which state is actually better for your business.

By Edmond Hui · Last updated: August 13, 2026

For most businesses, forming an LLC in Colorado beats Connecticut. Colorado runs $75 in year one and $25/yr after; Connecticut runs $200 and $80/yr. See the full breakdown below.

Verdict: Colorado wins for most businesses

For most Colorado-based businesses, forming locally in Colorado is the smarter choice. You avoid paying fees in two states and managing compliance in both. Connecticut only makes sense if your business genuinely operates there, and even then the total costs deserve a hard look.

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FactorColoradoConnecticut
Filing Fee$50$120
Processing TimeInstant (online filing only)Not published by the state
Annual Report Fee$25$80
Annual Report DueAnniversary monthMarch 31
State Income TaxYesYes
Anonymous LLCNoNo
Publication RequirementNoNo
Foreign LLC Cost (if forming out-of-state)N/A, you're in your home state$100 + registered agent ~$150/yr

Full fee breakdown for either state: Colorado LLC cost and Connecticut LLC cost.

Business Climate: Colorado vs Connecticut

FactorColoradoConnecticut
5-year business survival rate48.5% (#36 of 51)51.1% (#25 of 51)
Business application growth (2026 YTD (Jan to Jul) vs 2025 YTD (same months))+22.5% YoY (#10 of 51 by volume)+15.6% YoY (#34 of 51 by volume)

Sources: U.S. Bureau of Labor Statistics, Business Employment Dynamics · U.S. Census Bureau, Business Formation Statistics (BFS)

See the full 50-state survival ranking.

Compare LLC Costs: Colorado vs Connecticut

CO

Colorado

✓ Cheaper Upfront✓ Cheaper Long-Term
Formation fee$50
Annual report fee$25
State entity taxNone
Report dueAnniversary month
Processing timeInstant (online filing only)
Late penalty$50
CT

Connecticut

Formation fee$120
Annual report fee$80
State entity taxNone
Report dueMarch 31
Processing timeNot published by the state
Late penalty$0
Total Cost
Colorado
Connecticut
1 Year
$75
$200
3 Years
$125
$360
5 Years
$175
$520

Costs include every mandatory state charge: the filing fee, the report fee (annualised where a state files biennially), any state entity-level tax shown in its own row above, a one-time publication cost where a state requires publication, and any one-time registration charge a state requires before the LLC may trade. Annualising makes the 1, 3 and 5 year rows a cost of ownership rather than a payment schedule: a biennial state charges its whole report fee in the years it falls due and nothing in between. Entity-level taxes that only apply after a corporate election, or above an owner or income threshold, are excluded and flagged on the state's own cost page. New York's publication cost is carried at a $250 floor, roughly $200 of newspaper cost in a low-cost county plus the $50 Certificate of Publication fee. No county-clerk-designated New York City newspaper publishes a rate card, so the four-figure NYC estimates in wide circulation cannot be traced to a primary source and are not asserted here; budget for materially more than the floor if you file in a NYC county. Montana's annual report is free when filed by April 15 and $35 after, a waiver the Secretary of State applies at its discretion. Every fee was verified against the state's own fee schedule, statute, or revenue authority on 29 July 2026. Excludes registered agent and legal fees. For informational purposes only, not legal or tax advice.

Filing Fees & Formation Costs

Colorado charges $50 to form an LLC, while Connecticut charges $120. Colorado is $70 cheaper upfront. The cost that usually gets overlooked: if you form in Connecticut but operate in Colorado, you must also register as a foreign LLC in Colorado (a $100 filing) and maintain a registered agent in Connecticut (typically around $150 per year). That puts the realistic first-year cost of the Connecticut route at roughly $370, versus $50 for simply forming in Colorado. Only one side of this comparison is knowable: Colorado publishes instant (online filing only), while Connecticut publishes no standard processing time, so the two can't be ranked against each other on speed.

Taxes: Colorado vs Connecticut

Both Colorado and Connecticut levy a personal income tax on pass-through business income, and your LLC's profits will be taxed where you live and operate. Forming in Connecticut doesn't change what a Colorado-based owner pays. Colorado levies a flat 4.4% personal income tax. Neither state imposes a separate franchise or privilege tax on LLCs beyond standard filing fees.

Privacy & Asset Protection

Neither Colorado nor Connecticut offers anonymous LLC formation: both states require owner or manager information on public filings. Connecticut's annual report discloses the LLC's members or managers, a public filing. Business owners who prioritize privacy typically form a holding company in a state like Wyoming or New Mexico instead. Both states provide charging-order protection for LLC members, and for most small businesses the practical difference in asset protection between the two is minimal.

Annual Maintenance Costs

Colorado LLCs file an annual report ($25, due in the anniversary month), and Connecticut LLCs file an annual report ($80, due March 31). If you form in Connecticut while operating in Colorado, you maintain filings in both states, Connecticut's report plus Colorado's equivalent for your foreign registration, and pay a Connecticut registered agent roughly $150 per year. That brings ongoing costs of the Connecticut route to roughly $255 per year, versus about $25 to keep a domestic Colorado LLC in good standing.

When Connecticut Actually Makes Sense

Forming in Connecticut makes sense in a few specific situations: your business genuinely operates in Connecticut, with a real office, employees, or property there, or you're relocating to Connecticut in the near future. For a typical small business based in Colorado, none of these usually apply. Registering a Connecticut LLC to do business back home means $100 in Colorado foreign-registration fees, on top of Connecticut's $120 formation fee, while Colorado's own annual report runs $25 a year and is due in the anniversary month. When in doubt, form where you actually do business.

Frequently Asked Questions

Comparison chart of forming an LLC in Colorado versus Connecticut, contrasting filing fees, annual report cost and ongoing obligations across 8 factors. On balance this guide favours Colorado.
Colorado and Connecticut side by side on the factors that decide where to form. Source: MyStateLLC 50-state cost dataset, verified against each Secretary of State's published fee schedule, July 2026.

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