Arizona Business Name Checker
Check if your business name is available in Arizona. Validate naming rules instantly, then search the Arizona Corporation Commission's free eCorp database — and remember that trade names are registered with a different agency entirely.
Validate the name format, then search the official Arizona Corporation Commission — eCorp records.
1.Search the state registry (Arizona Corporation Commission — eCorp) for existing LLCs, corporations, and reserved names
2.Check federal trademarks at USPTO.gov — state approval does not protect you from trademark claims
3.Verify the .com domain is available for your name
4.Grab matching social media handles (Instagram, X, LinkedIn, Facebook)
5.Lock the name in by filing your formation documents — or reserve it first (details below)
Fee
$10 regular processing; about $45 total online, since eCorp reservations run as expedited (+$35)
Holds the name for
120 days
How to file
Form L001 by mail or in person to the Arizona Corporation Commission, or online through eCorp
Arizona reservations are explicitly not renewable (A.R.S. § 29-3113), but they can be transferred to another person.
How Business Name Availability Works in Arizona
Arizona keeps its entity records at the Arizona Corporation Commission (ACC), and the free search lives in the ACC's eCorp system. That is only half the picture, though: trade names are registered with the Arizona Secretary of State, and the ACC explicitly does not register them. A thorough Arizona name check means searching both the eCorp entity database and the Secretary of State's trade name registry.
Naming rules for LLCs come from A.R.S. § 29-3112: the name must contain "limited liability company" or "limited company," or one of the abbreviations LLC, L.L.C., LC, or L.C. — and it must not contain "association," "corporation," "incorporated," or their abbreviations. The name generally must be distinguishable from what is already on the ACC's records; banking, trust, and credit-union words need pre-approval from the Department of Insurance and Financial Institutions.
Arizona is unusually founder-friendly on cost: the LLC filing fee is just $50, and Arizona LLCs file no annual report at all. The catch is the publication requirement — new LLCs outside Maricopa and Pima counties must publish a notice of formation in an approved newspaper. A name reservation runs $10 for 120 days by mail (about $45 online, since eCorp processes reservations as expedited) and cannot be renewed.
Arizona Business Name Requirements
✓ Name Requirements
- • LLCs must include "LLC", "L.L.C.", "LC", "L.C.", "Limited Liability Company" or "Limited Company"
- • Corporations must include "Inc.", "Corp.", "Co." or "Ltd."
- • Generally must be distinguishable from the entity names and reserved names on the Arizona Corporation Commission's records (A.R.S. § 29-3112)
- • Cannot suggest a government affiliation
- • Cannot be misleading about business purpose
- • Governed by A.R.S. § 29-3112 (LLCs) and § 10-401 (corporations)
✗ Restricted Words
- • "Bank" — requires pre-approval from the Arizona Department of Insurance and Financial Institutions
- • "Trust" — implies trust-company powers — Arizona Department of Insurance and Financial Institutions pre-approval needed
- • "Credit Union" — requires pre-approval from the Arizona Department of Insurance and Financial Institutions
- • "Corporation" — an Arizona LLC name may not contain "corporation," "incorporated," or their abbreviations (A.R.S. § 29-3112)
- • "Association" — prohibited in Arizona LLC names, though corporations may use it under A.R.S. § 10-401
- • "Olympic" — federally protected under the Ted Stevens Olympic and Amateur Sports Act
How to Check Name Availability in Arizona
Use the tool above to open the Arizona Corporation Commission — eCorp search and look up existing LLCs, corporations, and reserved names. Arizona splits the work between two agencies: LLCs and corporations file with the Corporation Commission (eCorp), while optional trade names go to the Secretary of State. New LLCs outside Maricopa and Pima counties must also publish a formation notice in an approved newspaper, as Arizona law requires.
Search the USPTO database at uspto.gov — clearing the Arizona registry does not protect you from a federal trademark claim.
Check that the matching .com domain is available before you commit — renaming an LLC later means an amendment filing and new bank paperwork.
Confirm your name is free on Instagram, X, Facebook, and LinkedIn so your branding stays consistent everywhere.
Arizona lets you reserve a name for 120 days for $10 regular processing; about $45 total online, since eCorp reservations run as expedited (+$35) — Form L001 by mail or in person to the Arizona Corporation Commission, or online through eCorp.
What Registering a Name Costs in Arizona
| Filing | State Fee | Frequency |
|---|---|---|
| LLC formation filing | $50 | One-time |
| Annual report / recurring fee | $0 | — |
| Name reservation | $10 regular processing; about $45 total online, since eCorp reservations run as expedited (+$35) | Holds the name 120 days |
| Trade Name | Trade names are optional in Arizona and registered with the Secretary of State (azsos.gov) for around $10 — not with the Corporation Commission, which explicitly does not register trade names. | |
State filing fees as of 2026. See the Arizona LLC tax and fee calculator for the full annual cost picture.
Frequently Asked Questions
How do I check if a business name is taken in Arizona for free?
Search the Arizona Corporation Commission's eCorp database — it is free and covers every Arizona LLC, corporation, and reserved name. Then search the Arizona Secretary of State's trade name registry at azsos.gov, because trade names are registered there rather than with the ACC. Since Arizona trade names are optional, finish with a general web and USPTO trademark search to catch unregistered brands.
How much does it cost to reserve a business name in Arizona?
With regular processing, an Arizona name reservation costs $10 and lasts 120 days — file Form L001 by mail or in person with the Arizona Corporation Commission. Online reservations through eCorp are processed as expedited filings, adding a $35 expedite fee for a total of about $45. Reservations are explicitly not renewable under A.R.S. § 29-3113, but they can be transferred to another person.
What suffix does an Arizona LLC name need?
Under A.R.S. § 29-3112, an Arizona LLC name must contain "limited liability company" or "limited company," or one of the abbreviations L.L.C., L.C., LLC, or LC. It must not contain "association," "corporation," "incorporated," or abbreviations of those words — those are reserved for other entity types. Corporate names follow A.R.S. § 10-401, which allows "corporation," "incorporated," "company," "limited," "association," or an abbreviation.
Where do I register a trade name (DBA) in Arizona?
With the Arizona Secretary of State at azsos.gov — not the Corporation Commission, which explicitly does not register trade names. Arizona trade names are optional and cost around $10 (confirm the current fee when filing). Registration creates a public record of who uses the name but does not by itself grant exclusive rights, so consider a trademark if the brand matters.
Does Arizona require an annual report for LLCs?
No. Arizona is one of the few states where LLCs file no annual report and pay no recurring state maintenance fee — after the $50 formation filing, the state charges nothing to keep the LLC in good standing. Corporations, by contrast, do file annual reports with the Corporation Commission. This makes Arizona one of the cheapest states in the country to maintain an LLC long-term.
What is Arizona's LLC publication requirement?
Arizona law requires most newly formed LLCs to publish a notice of formation in a newspaper approved by the Corporation Commission in the county of the LLC's statutory agent, generally within 60 days of formation. LLCs whose statutory agent address is in Maricopa or Pima county are exempt — the ACC's own online publication database covers them. Publication costs vary by newspaper, commonly somewhere between $30 and $300.
Related Tools
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Checking a Name in Another State?
Searching Arizona Names in eCorp (and Why the Secretary of State Also Matters)
The ACC's eCorp database is the authoritative record for Arizona LLCs and corporations — search it free for entity names, reserved names, statuses, and filing histories. If a similar name shows up, check whether the entity is active or terminated before writing the name off.
Then search the Secretary of State's records at azsos.gov for registered trade names. Arizona trade names are optional, so plenty of businesses operate under unregistered brands too — a quick web and USPTO search closes that gap. Nothing about ACC name acceptance protects you from a trademark claim.
When your name is clear, reserve it with Form L001 ($10 by mail or in person; roughly $45 online because eCorp reservations run as expedited) or file the Articles of Organization directly for $50.
Arizona LLC Naming Rules Under A.R.S. § 29-3112
An Arizona LLC name must contain "limited liability company" or "limited company", or an abbreviation: L.L.C., L.C., LLC, or LC. Just as important is what it may not contain: "association," "corporation," "incorporated," or abbreviations of those words are prohibited in LLC names. Corporations, under A.R.S. § 10-401, may use "association," "bank," "company," "corporation," "limited," or "incorporated," or an abbreviation.
The name generally must be distinguishable from every entity name and reserved name on the Commission's records. As in most states, swapping designators or tweaking punctuation rarely creates distinguishability — change a substantive word.
Words suggesting a regulated financial business — bank, trust, credit union and the like — require pre-approval from the Arizona Department of Insurance and Financial Institutions before the ACC will accept the name. Build that review time into your formation schedule.
Reservations, Publication, and Arizona's No-Annual-Report Advantage
Arizona's name reservation is cheap but strict: $10 for 120 days with regular processing (Form L001 by mail or in person), or about $45 online because eCorp runs reservations as expedited filings (+$35). Under A.R.S. § 29-3113 the reservation is explicitly not renewable — though you can transfer it to someone else. If 120 days will not be enough, consider just forming the LLC.
After formation, Arizona law requires most new LLCs to publish a notice of formation in an approved newspaper in their county — unless the LLC's statutory agent address is in Maricopa or Pima county, where the ACC's own publication database satisfies the requirement. Budget roughly $30-$300 depending on the newspaper.
The long-term payoff is real: Arizona LLCs file no annual report and pay no recurring state maintenance fee, making Arizona one of the cheapest states to keep an LLC alive. Trade names remain optional — around $10 at the Secretary of State if you want the paper trail.
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