Is it cheaper to form an LLC in Arizona or Colorado?

Formation fees are identical: $50 in both states. The year-over-year cost is where they differ. Arizona runs $100 per year after formation, Colorado runs $125.

Can I form an LLC in Arizona if I live in Colorado?

Yes, but your Colorado business will almost certainly need to register as a foreign LLC in Colorado too, which means paying Colorado's foreign registration fee and any ongoing Colorado obligations on top of the Arizona ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.

How long does it take to form an LLC in Arizona vs Colorado?

Arizona online: 14 business days; Colorado online: 1 business day. Arizona offers paid expedite from $35. Colorado does not offer paid expedite.

Which state has lower taxes for an LLC, Arizona or Colorado?

Arizona: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. Colorado: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax.

Do both states require a registered agent?

Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Arizona and Colorado both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.

Does Arizona or Colorado have a publication requirement?

Arizona does. New LLCs must publish a formation notice in approved newspapers, which can add $50 to $1,800 to your first-year cost depending on the county where the LLC is based. Colorado has no publication requirement.

Which state should I pick if I run an online business from home?

Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Arizona or Colorado to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Arizona vs Colorado LLC comparison

Arizona charges $50 to form an LLC; Colorado charges $50. Day-one sticker price is only part of the story, since most of the real cost comes from the annual obligations that stack up each year you keep the LLC open.

Over a rolling three-year window, Arizona runs about $75 less in total state fees than Colorado. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

On speed, Colorado typically clears standard online filings faster than Arizona. Both states offer expedited tiers at an additional cost for filers on tight timelines.

For most small operators the choice is not really between these two states at all. It is between forming where the business actually operates and trying to route through a non-resident filing. The data below shows what each option actually costs.

Formation filing fee

Arizona $50

Colorado $50

Tied

Year 1 total estimate

Arizona $150

Colorado $175

Arizona saves $25

Ongoing per year

Arizona $100

Colorado $125

Arizona saves $25

3-year total

Arizona $350

Colorado $425

Arizona saves $75

Key differences at a glance

Arizona is $25 per year cheaper to maintain ($100 vs $125).
Arizona requires newly formed LLCs to publish a formation notice in local newspapers; this can add $50 to $1,800 depending on county.
Arizona has no annual report filing at all. Colorado requires an annual (or biennial) report every reporting period.

Where each state fits

For most filers, forming in the state you actually operate from is the right call. The side-by-side below shows where the two states meaningfully diverge.

What each state offers that the other does not

Only Arizona

Paid expedited tier
No annual report

Only Colorado

No publication requirement

Both states

Online filing
No entity-level franchise or LLC tax
Operating agreement not statutorily required

Three-year cost, side by side

Rough estimate of the state-facing cost to form and keep an LLC through three years. Both totals include a $100 per year registered-agent estimate.

Arizona Colorado

Year 1

$150

$175

Year 2

$250

$300

Year 3

$350

$425

Running total includes the one-time filing fee and annual ongoing costs (report fee or franchise tax plus a $100/year registered agent estimate).

What it costs under your specific situation

The table below runs the same LLC through four common scenarios. "Non-resident" rows assume a typical home-state foreign LLC registration adds about $200 per year of stacked cost; the real number depends on which state you live in and ranges from $50 to over $800 depending on jurisdiction.

Scenario	Year 1	Each year after	3-year total
You live in Arizona, business operates there No foreign LLC registration needed. You pay Arizona fees only.	$150	$100	$350
You live in Colorado, business operates there No foreign LLC registration needed. You pay Colorado fees only.	$175	$125	$425
Non-resident forming in Arizona with operations elsewhere You pay Arizona's fees plus a typical home-state foreign LLC registration of about $200 per year.	$350	$300	$950
Non-resident forming in Colorado with operations elsewhere You pay Colorado's fees plus a typical home-state foreign LLC registration of about $200 per year.	$375	$325	$1,025

Arizona vs Colorado: full comparison

Dimension	Arizona	Colorado
Online filing Can you file the formation document online?	Yes	Yes
Online approval time Standard, non-expedited	14 business days	1 business day
Expedited option Paid fast-track filing	$35	Not offered
Annual report Required in addition to tax	None	Required, $25
State-imposed annual tax Franchise, privilege, or LLC tax minimum	None	None
State income tax On pass-through LLC income at member level	Yes	Yes
Publication requirement Newspaper publication after formation	Required	No
Operating agreement Required by state statute	Recommended, not required	Recommended, not required
Foreign LLC fee Cost to register as a foreign LLC in this state	$150	$100
State sales tax General statewide rate	5.6%	2.9%

Taxes in Arizona and Colorado

How each state handles entity-level tax on LLCs. Pass-through classification means member-level income tax also applies at each member's residence state.

Arizona tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 4.9%.

Colorado tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 4.4%.

Ongoing compliance

The recurring filings each state requires after formation.

Arizona

No annual state filing. Registered agent required in Arizona.

Colorado

Annual report $25, due on your anniversary month. Registered agent required in Colorado.

Formation process, side by side

What actually happens from the moment you start filing to the moment you're in good standing. Use this as a checklist.

Arizona

Prepare a publication-ready notice (required in Arizona).
Check business-name availability on the Arizona entity search.
Appoint a registered agent with a physical Arizona street address.
File Articles of Organization (Form L010) for $50.
Wait for approval. Online typically 14 business days. Paid expedite from $35.
Adopt an operating agreement (recommended, not required by Arizona statute).
Apply for a federal EIN (free from the IRS).
Open a business bank account to separate personal and business finances.
No annual state filing required in Arizona.

Colorado

Check business-name availability on the Colorado entity search.
Appoint a registered agent with a physical Colorado street address.
File Articles of Organization for a Limited Liability Company for $50.
Wait for approval. Online typically 1 business days. No paid expedite offered.
Adopt an operating agreement (recommended, not required by Colorado statute).
Apply for a federal EIN (free from the IRS).
Open a business bank account to separate personal and business finances.
File your first annual report and pay $25 when it comes due.

Before you pick either state

A few things that apply no matter which state you choose. These trip up enough first-time filers that they're worth stating explicitly.

Registered agent is non-negotiable. Both Arizona and Colorado (and every other US state) require every LLC to designate a registered agent with a physical street address in the state of formation. You can serve as your own agent if you live in the state; otherwise a commercial agent runs $50 to $125 per year. Using your own home address makes it part of the public record.

Forming elsewhere does not escape your home state's tax. If you live and operate a business from your home state, forming the LLC in Arizona or Colorado does not avoid your home state's income tax. The moment you transact business at home, your home state requires a foreign LLC registration, and state tax liability follows your residence regardless of where the entity sits on paper.

EIN applications are free. The IRS issues Employer Identification Numbers directly at no cost. Any service charging you to "get your EIN" is reselling a free form submission. Single-member LLCs with no employees technically don't need one for federal tax, but nearly every bank requires an EIN to open a business account.

Operating agreement matters more than the state you pick. A well-drafted operating agreement governs member ownership, management, profit splits, buy-sell terms, and dissolution. Without one, your LLC runs on the state's default rules, which are rarely what you want. California, Maine, Missouri, and New York require a written one by statute; every other state treats it as strongly recommended.

Agency contacts

Arizona Corporation Commission - Corporations Division

Website: azcc.gov/corporations/home
Phone: (602) 542-3026
Email: answers@azcc.gov
Mail: Arizona Corporation Commission, Corporations Division, 1300 West Washington Street, Phoenix, AZ 85007-2996
Office: Arizona Corporation Commission, 1300 West Washington Street, Phoenix, AZ 85007-2996
Hours: 8:00 AM to 5:00 PM Mountain, Monday to Friday

Colorado Secretary of State - Business Division

Website: www.coloradosos.gov/pubs/business/main.html
Phone: (303) 894-2200
Email: sos.business@coloradosos.gov
Mail: Colorado Secretary of State, 1700 Broadway, Suite 550, Denver, CO 80290
Office: 1700 Broadway, Suite 550, Denver, CO 80290
Hours: 8:00 AM to 5:00 PM Mountain, Monday to Friday

Arizona Department of Revenue

Website: azdor.gov
Phone: (602) 255-3381
Mail: Arizona Department of Revenue, 1600 W Monroe St, Phoenix, AZ 85007
Office: 1600 W Monroe St, Phoenix, AZ 85007
Hours: 8:00 AM to 5:00 PM Mountain, Monday to Friday

Colorado Department of Revenue - Taxation Division

Website: tax.colorado.gov
Phone: (303) 238-7378
Mail: Colorado Department of Revenue, P.O. Box 17087, Denver, CO 80217-0087
Office: 1881 Pierce St, Lakewood, CO 80214
Hours: 8:00 AM to 4:30 PM Mountain, Monday to Friday

Frequently Asked Questions

Is it cheaper to form an LLC in Arizona or Colorado?

Formation fees are identical: $50 in both states. The year-over-year cost is where they differ. Arizona runs $100 per year after formation, Colorado runs $125.
Can I form an LLC in Arizona if I live in Colorado?

Yes, but your Colorado business will almost certainly need to register as a foreign LLC in Colorado too, which means paying Colorado's foreign registration fee and any ongoing Colorado obligations on top of the Arizona ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.
How long does it take to form an LLC in Arizona vs Colorado?

Arizona online: 14 business days; Colorado online: 1 business day. Arizona offers paid expedite from $35. Colorado does not offer paid expedite.
Which state has lower taxes for an LLC, Arizona or Colorado?

Arizona: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. Colorado: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax.
Do both states require a registered agent?

Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Arizona and Colorado both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.
Does Arizona or Colorado have a publication requirement?

Arizona does. New LLCs must publish a formation notice in approved newspapers, which can add $50 to $1,800 to your first-year cost depending on the county where the LLC is based. Colorado has no publication requirement.
Which state should I pick if I run an online business from home?

Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Arizona or Colorado to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Full state guides

ArizonaOpen Arizona LLC guide →
ColoradoOpen Colorado LLC guide →

More Arizona and Colorado comparisons

More Arizona vs ...

More Colorado vs ...

Sources

Filing fee: azcc.gov/docs/default-source/corps-files/fee-schedules/fee-schedule-ll… · verified April 21, 2026
Arizona Corporation Commission Schedule of Fees - Limited Liability Companies (A.R.S. Title 29), Rev. 3.2026. 'Articles of Organization' = $50 regular, $85 expedited (the $85 figure is the total, i.e. $50 base + $35 expedited surcharge).
Expedited filing: azcc.gov/docs/default-source/corps-files/fee-schedules/fee-schedule-ll… · verified April 21, 2026
Regular expedited processing for Articles of Organization totals $85 ($35 surcharge on top of the $50 base fee) and is generally completed within 3-5 business days. Arizona also offers Same Day/Next Day Accelerated Processing on top of expedited: Next Day = $100, Same Day = $200, 2-Hour = $400. We record the cheapest expedited tier (the $35 surcharge, approx 5 business days) in the struct.
Foreign LLC registration fee: azcc.gov/docs/default-source/corps-files/fee-schedules/fee-schedule-ll… · verified April 21, 2026
Foreign Registration Statement = $150 regular, $185 expedited. We record the regular fee.
Operating agreement requirement: www.azleg.gov/ars/29/03105.htm · verified April 21, 2026
A.R.S. §29-3105 (Arizona Limited Liability Company Act) recognizes an operating agreement as the governing document among members and permits it to be oral, written, implied, or any combination. There is no statutory requirement that an LLC adopt an operating agreement, so this is recorded as not required.
Publication requirement: www.azleg.gov/ars/29/03201.htm · verified April 21, 2026
A.R.S. §29-3201(G) requires newspaper publication of the notice of LLC formation in the county of the statutory agent's street address for three consecutive publications within 60 days after filing the Articles of Organization, unless the statutory agent's street address is in a county with a population of more than 800,000, in which case the Commission inputs the notice into its public notice database. Only Maricopa County and Pima County exceed that population threshold, so LLCs with statutory agents in those two counties are exempt (covering roughly 75% of Arizona's population). LLCs in the remaining 13 counties must arrange publication; typical newspaper cost is $60-$120.
Franchise tax: azdor.gov/forms/corporate-income-tax-highlights · verified April 21, 2026
Arizona has no franchise tax on LLCs or corporations. The Arizona Department of Revenue levies only a corporate income tax (4.9% on C-corp taxable income, $50 minimum) and the Transaction Privilege Tax (a gross-receipts-style sales tax at 5.6% statewide plus local rates), neither of which functions as a traditional franchise tax.
Corporate income tax rate: azdor.gov/forms/corporate-income-tax-highlights · verified April 21, 2026
Arizona corporate income tax is a flat 4.9% of Arizona taxable income (A.R.S. §43-1111) with a $50 minimum tax. LLCs are pass-through by default and do not owe corporate income tax unless they elect to be taxed as a C-corp. Recorded here for the maxCorporateRate informational field.
Sales tax rate: azdor.gov/business/transaction-privilege-tax · verified April 21, 2026
Arizona's statewide Transaction Privilege Tax (TPT) rate is 5.6%. TPT is technically a tax on the vendor's privilege of doing business rather than a consumer sales tax, but it functions as the state's sales tax. Counties and municipalities add their own TPT rates, with combined effective rates commonly ranging 7.5% to 11.2% across Arizona. Only the 5.6% statewide rate is recorded in salesTaxRate.
Business name search: arizonabusinesscenter.azcc.gov/businesssearch · verified April 21, 2026
The Arizona Corporation Commission retired the legacy eCorp system on January 12, 2026 and replaced it with the Arizona Business Center (ABC). The ABC portal hosts the current public business entity search and online filing system. The previous ecorp.azcc.gov URLs no longer resolve.
Online filing portal: arizonabusinesscenter.azcc.gov/homepage · verified April 21, 2026
Arizona Business Center is the ACC's official online business filing portal as of January 12, 2026. Articles of Organization, foreign registrations, and most maintenance filings are submitted here. Approval times are generally 12-15 business days for regular online filings, faster with the expedited surcharge.
Certificate of Formation name: www.azcc.gov/docs/default-source/corps-files/forms/l010-articles-of-or… · verified April 21, 2026
Form L010 - Articles of Organization (domestic LLC). Filers using the online Arizona Business Center portal complete an equivalent on-screen form. Instructions are published at azcc.gov as form L010i.
Annual report: www.azcc.gov/corporations/forms/llc-forms · verified April 21, 2026
Unlike Arizona corporations, Arizona LLCs do not file an annual report. The Arizona Corporation Commission's LLC forms page lists no annual report form for LLCs, and the LLC fee schedule does not include an annual report fee. This is confirmed by A.R.S. Title 29, Chapter 7, which imposes no annual report duty on LLCs.
Filing fee: www.sos.state.co.us/pubs/info_center/fees/business.html · verified April 21, 2026
Colorado Secretary of State Business Organizations Fee Schedule: 'Limited liability company - Articles of Organization' = $50.00 online fee. Colorado accepts electronic filings only; there is no paper-filing option for new LLC Articles of Organization.
Expedited filing: www.sos.state.co.us/pubs/info_center/fees/business.html · verified April 21, 2026
Colorado does not offer expedited processing for standard online LLC filings because online filings are effectively processed same day (typically within 1 business day). An 'Expedited Service' line for paper document filing at $150 exists on the fee schedule, but it applies only to the limited categories of paper filings Colorado still accepts. For the LLC Articles of Organization (online-only), expedited service is not offered.
Foreign LLC registration fee: www.sos.state.co.us/pubs/info_center/fees/business.html · verified April 21, 2026
Foreign Entity Authority Statement = $100.00 online fee.
Operating agreement requirement: law.justia.com/codes/colorado/title-7/limited-liability-companies/arti… · verified April 21, 2026
C.R.S. §7-80-108 (Colorado Limited Liability Company Act). Operating agreements are permitted but not required, and need not be in writing except where a written form is specifically required (e.g. certain transfer restrictions under §7-80-108(3)). Recorded as not required. Justia is used here as a neutral statute mirror because the official Colorado legislative site (leg.colorado.gov) does not expose a stable per-section URL and the SoS reference page lists statutes only as PDF downloads.
Publication requirement: www.sos.state.co.us/pubs/info_center/laws/CRSTitle7index.html · verified April 21, 2026
Colorado imposes no LLC newspaper publication requirement. Colorado Title 7 Article 80 (the Colorado Limited Liability Company Act) contains no publication provision.
Annual report fee: www.sos.state.co.us/pubs/info_center/fees/business.html · verified April 21, 2026
Periodic Report = $25.00 online (online filing is the only option). Periodic Report Late Filing Penalty = $50.00. Fee increased from $10 to $25 effective July 1, 2024 per Colorado SoS press release.
Annual report: www.sos.state.co.us/pubs/business/FAQs/reports.html · verified April 21, 2026
SoS Periodic Reports FAQ (Q4): 'The Periodic Report can be filed two months prior to the Periodic Report month or two months after without any penalty.' The Periodic Report month corresponds to the month the entity was originally formed or registered in Colorado. Statutory basis: C.R.S. §7-90-501.
Franchise tax: tax.colorado.gov/corporate-income-tax-guide · verified April 21, 2026
Colorado has no franchise tax on LLCs or corporations. The Department of Revenue publishes only corporate income tax (flat 4.4%) and individual income tax (flat 4.4%) guidance; no capital-based or share-based franchise tax exists.
Corporate income tax rate: tax.colorado.gov/corporate-income-tax-guide · verified April 21, 2026
Colorado corporate income tax is a flat 4.4% rate on federal taxable income attributable to Colorado (C.R.S. §39-22-301), tax year 2024 and forward. LLCs are pass-through by default and do not owe corporate income tax unless they elect C-corp taxation. A Pass-Through Entity (SALT Parity) election allows LLCs to pay at entity level at the same 4.4% rate.
Sales tax rate: tax.colorado.gov/sales-tax-guide · verified April 21, 2026
Colorado statewide sales tax rate is 2.9%. Many Colorado cities are 'home-rule' and self-administer local sales tax, so combined state+local rates vary widely (commonly 4%-11%+). Only the 2.9% statewide rate is recorded here.
Business name search: www.coloradosos.gov/biz/BusinessEntityCriteriaExt.do · verified April 21, 2026
Colorado SoS Business Database Search. Resolves successfully in 2026. Note: the coloradosos.gov and sos.state.co.us domains both serve the same SoS website.

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