Colorado LLC Cost: $50 Filing + $25 Periodic Report (2026)

Forming an LLC in Colorado costs $50 to file Articles of Organization (online-only) and $25/yr for the periodic report. Year-one cost: $75 — bottom 10 nationally. No franchise tax. State personal income tax is 4.4% flat (2026). Five-year cost: $150. Colorado is online-only filing, no paper option, with one of the most modern SOS portals in the country.

Reviewed by Soft Crown Editorial Team — fact-checked against primary government sources • Last updated 2026-04-25 • 4 primary government sources cited

TL;DR

Colorado LLCs file Articles of Organization with the Colorado Secretary of State for $50 — exclusively online via the SOS portal. There is no paper filing option. The annual periodic report is $25, due during the LLC’s anniversary month. No franchise tax. State personal income tax is a flat 4.4% (2026), among the lowest flat rates. Colorado has been online-only for LLC filings since 2014, ranking among the most modern state SOS portals — most filings complete in under 30 minutes from form to certified filing.

Colorado LLC cost breakdown (2026)

Line item	Cost	Source
Articles of Organization (online only)	$50	coloradosos.gov
Periodic Report (annual)	$25	coloradosos.gov
Late periodic report	$50 ($25 + $25 penalty)	coloradosos.gov
Statement of Trade Name (DBA)	$20	coloradosos.gov
Registered Agent change	$10	coloradosos.gov
Year 1 total (no add-ons)	$75
Year 2+ ongoing	$25
5-year total	$175

All figures verified 2026-04-25 from primary Colorado state sources.

Why Colorado is online-first

Colorado’s online-only filing has been a deliberate policy since 2014. The state SOS portal accepts no paper LLC filings — every filing happens through coloradosos.gov/biz. The trade-off is no walk-in option, no mail option. The benefit: filings are typically processed within 1 business day, often in real-time during business hours.

The portal interface is also one of the cleanest in the country. The Articles of Organization form is 5 fields, takes 5-10 minutes, and the certified filing PDF arrives via email immediately upon payment confirmation. Compare to California’s bizfile portal (more complex, 7-10 days) or New York’s still-paper-required system.

Colorado’s $50 + $25 ongoing structure is bottom 10 nationally for total LLC ownership cost. Cheaper than most western states except Arizona ($50 + $0) and New Mexico ($50 + $0). For founders who want low cost + fast filing + a modern interface, Colorado is hard to beat.

Filing steps (DIY, no service)

1. Pick a name — search availability via coloradosos.gov business search. Names must include “Limited Liability Company,” “Ltd. Liability Company,” “LLC,” “L.L.C.,” or “Limited.”
2. Designate a registered agent — must have a Colorado street address.
3. File Articles of Organization — $50 fee. File online at coloradosos.gov/biz. No paper option.
4. Get a federal EIN — free at irs.gov.
5. Draft an operating agreement — not required by Colorado law but recommended.
6. Register with Colorado Department of Revenue — sales tax permit (free) if selling tangible goods, employer withholding if hiring.
7. Open a business bank account — Colorado-located banks (FirstBank, Wells Fargo, US Bank) accept CO LLC documents.
8. File FinCEN BOI report — within 30 days of formation. Free at fincen.gov/boi.
9. File annual periodic report — due during the LLC’s anniversary month. $25 fee, online.
10. Calendar the renewal — annual periodic report cadence.

Standard online filings are processed in under 1 business day. There’s no expedited tier because the standard turnaround is fast enough — Colorado’s same-day filing is faster than most states’ expedite.

Page-unique facts

• Colorado is online-only for LLC filings since 2014. No paper filings accepted.
• Colorado SOS filing turnaround is the fastest in the country. Same-day, often within minutes.
• Colorado personal income tax dropped from 4.55% to 4.4% in 2024. TABOR-required reductions when state revenue exceeds the cap.
• Colorado allows reserved names for free for 120 days (most states charge $25-$50). Source: coloradosos.gov reserved names.
• Colorado does not allow Series LLCs. Most popular states do (DE, TX, IL, WY, NV); Colorado has not adopted this structure as of 2026-04-25.

Frequently asked questions

What is Colorado’s Periodic Report?

An annual filing due during the LLC’s anniversary month. Cost: $25 if filed on time. $50 late penalty (the $25 fee + $25 penalty). Pure online filing via Colorado Secretary of State website. After 60 days late, the LLC enters “delinquent” status; after 12 months delinquent, the LLC may be administratively dissolved. Source: coloradosos.gov, verified 2026-04-25.

Does Colorado tax LLC profits?

Colorado has a 4.4% flat personal income tax (2026). LLC pass-through income (single-member disregarded or multi-member partnership) is taxed on owners’ personal returns at 4.4%. C-corp election triggers Colorado’s 4.4% corporate tax. Source: Colorado Department of Revenue, verified 2026-04-25.

Why is Colorado’s annual fee so low?

Colorado prides itself on low business-formation friction. $50 filing + $25 periodic = $75 first year — bottom 10 nationally for total year-one cost. The state’s 2014 transition to online-only filing reduced administrative overhead, allowing fees to stay low. Source: coloradosos.gov fee schedule.

Can I file an LLC in Colorado without going online?

No. Colorado is online-only for LLC filings since 2014. There’s no paper option, no walk-in option, no mail option. All filings happen at coloradosos.gov/biz. The trade-off: filings complete same-day, often in minutes during business hours.

How does TABOR affect Colorado’s LLC tax environment?

TABOR — the Taxpayer’s Bill of Rights, a 1992 Colorado Constitutional amendment — caps state revenue growth and triggers automatic refunds when state revenue exceeds the cap. For LLC owners, this manifests as periodic flat-tax-rate reductions: Colorado’s personal income tax dropped from 4.55% to 4.40% in 2024 (a temporary TABOR-required reduction made permanent), and additional reductions trigger when revenue surplus exceeds threshold. The IRS treats Colorado LLCs identically to any other state for federal classification — pass-through profits flow at the prevailing 4.40% Colorado rate plus federal. See IRS Colorado Small Business Resources for federal cross-reference.

What is Colorado’s periodic-report grace period if I miss the anniversary month?

Colorado’s $25 periodic report is due during the LLC’s anniversary month each year. After the anniversary month, the LLC enters “noncompliant” status with a $50 late penalty (the $25 fee plus $25 penalty). After two consecutive missed periodic reports (roughly 14 months from the original due date), Colorado SOS administratively dissolves the LLC. Reinstatement requires filing a Statement of Curing Delinquency ($100) plus all back-due reports plus penalties. Colorado is one of the more generous states on this front — most states dissolve after 60-90 days delinquent, while CO gives over a year. The SBA local assistance directory lists Colorado SBDC offices that offer free reminder services.

State quirk: online-only since 2014, fastest in the country

Colorado has been online-only for LLC filings since 2014 — there is literally no paper, mail, walk-in, or fax option for forming a new LLC, and no plans to reinstate one. The Colorado SOS portal at coloradosos.gov/biz typically completes filings within minutes during business hours and within 24 hours overnight; there is no expedited tier because the standard tier already beats most states’ expedites. Colorado is also one of only a handful of states that reserves names for free (most states charge $25-$50 for a 60-90 day name reservation). The trade-off Colorado founders accept is the absence of Series LLC authorization (most popular states have it; Colorado has not adopted it as of 2026-04-25) and TABOR-driven volatility in the personal income tax rate, which has dropped from 4.63% (pre-2020) to 4.40% (2026) under repeated TABOR refund triggers.

Common mistake in Colorado

The most common Colorado LLC mistake is forgetting that the anniversary-month periodic report is required even though the SOS portal makes formation feel almost frictionless. Founders form a CO LLC in 5 minutes for $50, file an annual report in another 5 minutes the first year, then forget the recurring requirement entirely. After two missed periodic reports the LLC is administratively dissolved, requiring a $100 reinstatement filing on top of back-due reports and penalties.

Sources

1. Colorado Secretary of State Business Section — last verified 2026-04-25
2. Colorado Business Database Search — last verified 2026-04-25
3. Colorado Department of Revenue — last verified 2026-04-25
4. Colorado Revised Statutes Title 7 (Corporations and Associations) — last verified 2026-04-25
5. IRS Colorado Small Business and Self-Employed Resources — last verified 2026-04-25
6. SBA Local Assistance Directory (Colorado SBDCs) — last verified 2026-04-25

About the author

Aissam Baidi is the founder and researcher behind llcformationcost.com. He verifies Colorado LLC fees directly from coloradosos.gov on a quarterly cycle. Connect on LinkedIn.

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Not legal advice. Estimates based on publicly available data from each state’s Secretary of State office. Consult a licensed attorney in your jurisdiction.