How to Register a Business Name in Arizona

To register a business name in Arizona, you must first check to make sure your name is available by doing an eCorp business entity search, a domain name search, and a federal trademark search. Afterward, you must register that name for your business — whether you’re going to reserve it, file for a business with it, or file for a trade name using our step-by-step instructions.


Choosing a Business Structure

Choosing a business structure for your small business is one of the most important decisions you will make.

The factors you should consider when choosing a business structure will depend on your needs and wants for personal liability protection, tax liabilities, and paperwork to keep the company in compliance.

This guide covers how to register a business name for the following business structures in Arizona: sole proprietorships, general partnerships, limited liability companies (LLCs), and corporations.

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Recommended: We typically recommend forming an LLC to most entrepreneurs because this structure comes with personal asset protection, has no double taxation, and is pretty easy to maintain.

Steps to Register a Business Name in Arizona:

Registering a business name in Arizona depends on the type of business structure you already have or want to form. Sole proprietorships and partnerships are simpler than LLCs and corporations, but all of these business types have specific rules to follow in Arizona. They will have different filing requirements, naming rules, and processes to register or change names.

These are the steps to register a business name in Arizona:

  1. Make sure your business name is unique
  2. Determine your business structure’s naming needs
  3. Address additional naming requirements

This guide assumes you have a name in mind for your business.

If you don’t have a business name in mind or find that another business already took the one you had in mind, check out our How to Name a Business guide to learn what makes a good name.

You also can use our Business Name Generator to get some help brainstorming your business’ new name. Then, create a logo with our free Logo Maker.

If you're not sure what type of business you would like to start, our Business Ideas guide will help you find the business that's right for you.

Step 1: Make Sure Your Business Name Is Unique

The first step in registering a business name is to make sure it's unique, meaning that it’s not trademarked and no one else in your state formed a company with it, reserved it, or has control of it online as a domain name or on social media platforms. You can do this by conducting the following searches:

Federal Trademark Search

First, a quick search of the Trademark Electronic Search System on the United States Patent and Trademark Office (USPTO) website will tell you if someone else already trademarked your desired business name. This means that someone registered the business name with the federal government.

To do this search:

  1. Go to the USPTO.
  2. Click the Trademarks link in the menu.
  3. Then click the Search trademarks option.
  4. On this page, click the Search our trademark database (TESS) button.
  5. Choose the Basic Word Mark Search, which is enough to find name availability.
  6. Enter the name you want to use.

Once you have the list of results, check to see if it includes any live trademarks using that name — or something close to it — as well as what the use of that trademark is in the Goods and Services section of the search results.

To learn more about trademarks and the steps you must take to get one, read our How to Trademark Your Business Name article.

Arizona eCorp Business Entity Search

Next, search the Arizona Secretary of State’s eCorp business entity search tool. This is an important step in the process because your filing will be denied if you try to file for a name already in use.

Search requirements can vary depending on your business needs. For example, a unique and available name is required to:

  • File for formal business structures like LLCs and corporations.
  • Reserve a name for an LLC or corporation before filing.
  • File a doing business as (DBA) name for any business structure.

A state-level name search isn’t required for informal business structures like sole proprietorships or general partnerships in Arizona. But, if you decide to register a trade name or DBA name, you’ll need to search the eCorp business entity search tool to see if your desired name is unique and available.

Domain Name Search

We strongly recommend that you also check to see if your business name is available as a web domain (URL). Even if you don't plan to create a business website today, you may want to buy the web address to prevent others from acquiring that domain name. It’s a free search.

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After registering a domain name, consider setting up a professional email account (@yourcompany.com). Google's G Suite offers a business email service that comes with other useful tools, including word processing, spreadsheets, and more. Try it for free

Web and Social Media Search

Finally, when doing your research, it’s a good idea to check what else comes up when you search for your prospective business name online on sites like Google, Bing, Yahoo, Yelp, Twitter, Facebook, Instagram, and more.

Doing this will show you who else with a similar business name appears on these platforms, if they have a large online presence, and how tough they may be to compete with while you build your brand.

It’s also smart to see if anyone else in your industry already has a similar name to the one you want to use. You can do this by looking up some search terms related to your industry and brand. You may decide on a different business name to make yourself stand out.

Recommended: If you find out that the social media accounts for your brand are available, register them as quickly as possible. It’s free and stops others from acquiring them before you have a chance to form your business.

Step 2: Determine Your Business Structure’s Naming Needs

Now that you’ve found a unique name for your business, you’ll need to register it to start doing business. This guide covers the naming needs of informal business structures, including sole proprietorships and general partnerships, as well as two of the most common formal business structures: LLCs and corporations.

Sole Proprietorships and General Partnerships

Sole proprietorships and general partnerships are the simplest business structures in Arizona, and they have similar requirements for registering a business name.

A sole proprietorship only has one owner. It’s an informal business structure that doesn’t provide personal asset protection or require you to file formation documents with the state.

A general partnership has two or more owners. You must file formation documents with the state of Arizona for this type of business using a Statement of Partnership Authority.

By default, sole proprietorships operate as the same name as the owner while general partnerships must include the surnames of all the partners.

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To use a different name to conduct business, the business owner(s) must file for an Arizona trade name — also commonly referred to as a doing business as (DBA) name.

Limited Liability Companies (LLCs) and Corporations

Registering a legal business name is part of both the LLC and corporation filing processes. Once you file to form your LLC or C corporation (C corp) with the state, that process also registers your business name.

An LLC is the simplest way of structuring your business to protect your personal assets in case your business is sued.

A C corp is a separate legal entity from its owners with a basic operational structure consisting of shareholders, officers, directors, and employees. A C corp business structure also protects your personal assets.

Both LLCs and corporations require unique names in Arizona that must follow certain naming requirements:

Recommended: Learn How to Form an LLC in Arizona or, if you need a more rigorous operating structure, learn How to Start a Corporation in Arizona.

File a Trade Name

Filing a trade name in Arizona, also commonly known as a DBA name, allows your existing or new business to conduct business using a name other than its legal business name. This can be helpful as you establish a brand name or if you want to change the name of a business without having to file an amendment to the original formation document.

All business structures covered in this article may file a DBA name, but LLC and corporation filing is different than filing for sole proprietorships and general partnerships.

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Recommended: Read our full guide on how to get a trade name in Arizona.

Or, use a professional service to file your DBA name for you.

Name Reservations

A name reservation isn’t required to open a new company or file for a DBA name in Arizona.

Filing an Arizona name reservation can, however, prove beneficial like if you find a unique name for your business, but don’t want to form your LLC or corporation right away.

You can file for an Arizona name reservation and any number of extensions by either:

  1. Completing the application on Arizona’s Corporation Commission Website, which will cost $10 for the filing fee plus $35 to expedite the application for immediate processing.
  2. Or, if you don’t wish to pay the $35 fee for immediate processing, you may file an Application to Reserve a Corporation Name or an Application to Reserve a Limited Liability Company Name in person or by mail. 

Once filed, your business name will be reserved in Arizona for 120 days. Priority will be given to online applications vs. those submitted by mail or in person. You can renew the name reservation once it expires, but not for consecutive, 120-day periods.

How to Change the Name of an Arizona Business

Changing the name of a business in Arizona can be done in two ways: by filing for a trade name or by submitting an amendment to the legal name of an existing business.

The first method, filing for a trade name (also known as a DBA name), is the easiest way to operate your business using a different name without needing to change its legal name. 

A DBA name is the only way for sole proprietorships and general partnerships to have a different business name. It’s also the easiest method for LLCs and corporations to follow because it allows them to avoid filing an amendment or complicating their business operations while enabling them to operate with brand names that don’t include the necessary LLC or Inc. suffix required in a legal name.

If you want to change the legal name of your LLC or corporation, however, filing an amendment to the legal name of an existing business is your best option. Here are links to forms for both options:

Both must be mailed with the $25 filing fee.

Step 3: Address Additional State and Federal Business Name Registration Requirements

After you form a new company, you’ll need to register your business — and its name — in a few more ways so you can pay taxes, conduct business, hire employees, and protect your business from others trying to use its name.

Get an Employer Identification Number (EIN)

After forming a business, you’ll need to get an EIN for a number of reasons. These include paying taxes for your business, opening a bank account, obtaining credit cards, hiring employees, and more. 

Many business activities just aren’t possible without an EIN.

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Recommended: Learn How to Get a Free EIN from the Internal Revenue Service (IRS) using our guide.

Get the Right Business Licenses and Permits

To operate your business in Arizona you must comply with federal, state, and local government regulations. For example, restaurants likely need health permits, building permits, signage permits, etc.

The requirements for business licenses and permits vary by state. Make sure you read carefully. In some cases, you may need to take classes in order to obtain a specific business license.

Fees for business licenses and permits also vary, depending on the sort of license or permit you want to obtain.

Find out how to obtain necessary Arizona business licenses and permits for your business or have a professional service do it for you.

Protect Your Business Name With a Trademark (Optional)

Once you confirm the availability of your business name and secure it, you can choose to apply for a trademark for your business. This typically costs around $225 to $400 plus any attorney fees as well as a renewal fee every 10 years. 

While this cost can be high for a start-up or fledgling business, it will give your company nationwide protection backed by federal law. That means if others try to do business with the same — or a similar — name as yours, you’ll have legal precedent on your side.

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Recommended: Learn How to Trademark Your Business Name using our free guide.

How much does it cost to set up an LLC in Arizona?

Starting an LLC in Arizona can be done online, in person, or by mail through the Arizona Corporation Commision and costs $50.

Does Arizona require a business license?

The state of Arizona doesn’t issue or require a state-specific business license. However, your city or county most likely requires licensing that will vary based on your location. 

If you plan to sell products or engage in specific services that require it, you’ll also need a Transaction Privilege Tax (TPT) license before you begin operating your business.

How much does an Arizona business license cost?

Arizona business licensing costs and requirements vary based on your city and county. We recommend reaching out to your local government about small business licensing requirements in your area.

Do I need a business license to sell online in Arizona?

If you plan to reform an online business that sells goods or services, you’ll most likely need to obtain a Transaction Privilege Tax (TPT) license. However, there are exemptions for some product sales. You also may need additional licensing issued by your city or county.

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

It typically takes between 22-27 business days to process LLC documents in Arizona. For additional steps towards establishing your business, follow the steps in our full Arizona LLC guide, to form your LLC efficiently without the worry of missing crucial steps in the formation process.

How do I create my own LLC?

To form your own LLC in Arizona you must file Articles of Organization with the Arizona Corporation Commission. This officially creates your Arizona LLC.

What is an Arizona Certificate of Good Standing?

An Arizona Certificate of Good Standing is a verification that your LLC was legally formed and properly maintained. You can request this certificate online for $45 through the Arizona Corporation Commission.

Arizona Business Resources