See if your business name follows your state's rules

What are the general rules for choosing an acceptable business name?

An acceptable business name has to follow the naming rules of the state where you form the business, and it needs to be distinguishable from other names already on file. Requirements vary by state and entity type, so don't assume one state's rules apply everywhere. It helps to think of this in two layers: your legal business name, which is the name your entity is formed or registered under, and any other name you use publicly (more on that below).

Most states share a few common threads:

• You'll need an entity designator, such as LLC or limited liability company.
• Your name can't be too close to one that's already registered.
• You can't use wording that misleads people about what your business actually does.

Meeting the formatting rules doesn't mean the name is available, and it doesn't mean you're cleared to use it everywhere. Checking availability is a separate step from checking format, and skipping one because you did the other is a common mistake.

If you're wondering how to register a business name with your state, the answer depends on which kind of name you mean. Your legal name is typically established through the filing that creates your entity, and changing it later usually means filing articles of amendment. A name you use in addition to your legal name works differently (see the trade name section below). Either way, confirm the exact process with your state's filing office before you file anything.

What is an entity designator, and why do states often require one in a business name?

An entity designator is a word or abbreviation in a business name, like LLC or Inc., that tells people what type of legal entity they're dealing with. Most states require one for formed entities, but whether it's required, and how it has to appear, comes down to your state and your entity type.

A designator lets customers, vendors, and lenders know at a glance that they're dealing with a formal business rather than a person. It also helps states keep entity types straight in their own records. Beyond that, the specific rules and reasoning are up to each state.

Which designators are commonly used for LLCs and corporations?

LLCs typically use LLC, L.L.C., Ltd., or Limited Liability Company. Corporations typically use Inc., Corp., Incorporated, or Corporation. These are the common ones, not a full list, and some states allow other variations or set their own rules for how they're written.

• LLCs: LLC, L.L.C., Ltd., Limited Liability Company
• Corporations: Inc., Corp., Incorporated, Corporation

What's accepted for abbreviations, punctuation, and even placement in the name shifts from state to state. A variation that works fine in one state might get rejected in another, so check the accepted forms with your state's filing office before you lock in a name. That goes for corporation name requirements just as much as it does for LLC naming rules.

Are there words or phrases that states commonly restrict or require extra approval to use in a business name?

Yes. Many states restrict certain words or require extra approval before you can use them, but every state sets its own list, and those lists don't match up. There's no single national list to check against, so treat any example list you find online as a rough guide, not gospel.

Restrictions tend to fall into a few categories:

• Words tied to regulated professions , like terms that imply banking, insurance, or licensed professional services
• Words that suggest a government connection and could make people think your business is an official agency
• Words that could just confuse people about what your business actually is or does

If your dream name has a word that sounds official or professional in it, read your state's naming rules closely before you fall in love with it.

How do name requirements differ from state to state, and where can I confirm the rules that apply to my business?

Requirements shift by state and entity type, so your best source is the state agency that handles business filings, usually the Secretary of State or something similar. As a rule, the state where you formed your entity governs its legal name, so that's the state whose rules matter most.

Where states tend to diverge: how close a name can be to an existing one, which designators get accepted, and which words trigger extra scrutiny. Start with the rules your state's filing office publishes, and if your situation is complicated, talk to a qualified attorney.

How does a business name relate to a trade name or DBA, and when might each matter for a small business owner?

A business's legal name is the name it's formed or registered under. A trade name, also called a fictitious business name or DBA ("doing business as"), is a different name the business uses in public. "Trading name" means basically the same thing as trade name. "Business name" on its own could mean either one, so it's worth being clear about which you're talking about.

Each name shows up in different places. Your legal name lives in your entity's formal state records. Your trade name is what customers may actually see on your storefront, your website, and your marketing. Businesses use a name other than their legal name for all kinds of reasons: a catchier brand, a new product line, or a sole proprietor who'd rather not operate under their own personal name.

Whether you need to register a trade name depends on where you operate, since rules vary by state and sometimes even by county. If you're asking whether you need to register a business name at all, check with your state and local authorities to see what applies to your business type and location.

One more thing worth knowing: a DBA or a properly formatted legal name doesn't give you trademark rights. It also doesn't guarantee the name is free and clear of someone else's brand. Trademark law is its own animal, so running a trademark search and talking to a professional are smart moves if protecting your brand actually matters to you.