How to Trademark a Business Name in Illinois (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

To trademark a business name in Illinois, you choose between a state registration with the Illinois Secretary of State (a low per-class fee, valid five years and renewable) for in-state use, or a federal USPTO registration for nationwide rights. The mark must be in actual use in commerce to register.

State vs. Federal Trademark

A business name can be protected at two levels. An Illinois state trademark, registered with the Illinois Secretary of State, protects a mark used within Illinois and is inexpensive, but its rights stop at the state line. A federal trademark, registered with the United States Patent and Trademark Office (USPTO), provides nationwide priority and stronger remedies, and is the right choice if you sell across state lines or online.

Registering your LLC or corporate name with the Secretary of State, or filing a DBA, is not a trademark — it only reserves the entity or trade name in the business registry. For brand protection you need a trademark. See the trademark hub and how to trademark a name for the federal process.

Search Before You File

Clearance is the most important step. Search the Illinois Secretary of State trademark database for existing state registrations, and search the USPTO trademark database for federal marks in your class of goods or services. A conflicting mark for related products can block your registration and expose you to an infringement claim, even if the exact spelling differs.

Also check the Illinois business entity search and general web and domain use. Clearing a name across the registry, the trademark databases, and the marketplace reduces the risk of a costly rebrand later. If a conflict appears, choose a more distinctive name.

Registering an Illinois State Trademark

To register a state mark, you file a trademark or service mark application with the Illinois Secretary of State's Department of Business Services. Illinois charges a low per-class fee (about $10 per class), and the registration is valid for five years and renewable. You must specify the class of goods or services and show the mark is already in use in Illinois, typically by providing a specimen and first-use dates.

State registration is fast and cheap, and it puts others on notice within Illinois. It is a sensible option for local businesses that operate only in the state. Keep proof of continuous use, and calendar the five-year renewal so protection does not lapse.

Registering a Federal Trademark

For nationwide protection, file with the USPTO through the Trademark Electronic Application System (TEAS). You select the international class(es) of goods or services, provide a specimen of use (or file intent-to-use), and pay a per-class filing fee set by the USPTO. A USPTO examining attorney reviews the application, and it is published for opposition before registering.

Federal registration lets you use the ® symbol, provides a legal presumption of nationwide ownership, and supports enforcement in federal court. Because the process is more involved and fees are higher than the state route, confirm the current USPTO fee schedule and consider counsel for complex marks. See how to trademark a name for detail.

TM, SM, and the Registered Symbol

You may use TM (for goods) or SM (for services) with a mark at any time to assert common-law rights, even before any registration. These symbols signal that you claim the name as a brand. Common-law rights arise from actual use, but they are limited to your geographic market and can be hard to prove.

The federal registration symbol ® may be used only after the USPTO grants a federal registration — using it prematurely is improper. A state registration does not entitle you to use the ® symbol. Understanding these distinctions helps you mark your brand correctly while your applications are pending.

Maintaining and Enforcing Your Mark

A trademark is only as strong as its use and enforcement. For an Illinois state mark, renew every five years and keep using it in commerce. For a federal mark, file the required maintenance documents (including declarations of continued use) on the USPTO schedule, or the registration can be cancelled. Abandonment through non-use can forfeit rights at either level.

Enforcement is up to the owner: monitor the market for confusingly similar names and act on infringement. A registration strengthens your position but does not police itself. Pair trademark protection with sound entity practices — see how to form an LLC and business tax — so your brand and business are both on solid footing.

Costs, Timing, and Common Pitfalls

Set expectations on timing. A state registration with the Illinois Secretary of State is comparatively quick, while a federal USPTO application takes many months and passes through examination and a publication period before it registers. If you are building a brand for the long term, start the federal process early even while relying on common-law and state rights in the meantime.

Budget realistically. The Illinois state fee is low on a per-class basis, but federal fees are charged per class of goods or services, so a mark used across several classes costs more federally. Choose your classes carefully — too few leaves gaps, too many wastes money. The USPTO fee schedule controls the current amounts.

Avoid the most common mistake: choosing a descriptive or generic name. Marks that merely describe your product (or name the product itself) are weak or unregisterable. Distinctive, coined, or arbitrary names are easier to register and enforce. Invest in a strong name before you invest in signage and packaging.

Do not treat your entity or DBA filing as brand protection. Registering an LLC name or a DBA with the state only reserves the name in the business registry; it does not stop a competitor from using a confusingly similar brand. Only a trademark, state or federal, protects the brand itself.

Finally, plan to police and renew. A registration you never enforce, or let lapse, loses value. Monitor the market and the USPTO for conflicting filings, keep using the mark, and calendar renewals — five years for the Illinois state mark and the federal maintenance windows for a USPTO registration. See how to trademark a name and the trademark hub for the federal detail.

Clear the name across every layer before you commit. Beyond the Illinois trademark records and the USPTO database, check domain availability, social media handles, and general web use for the same or similar names in your field. A mark can be technically registrable yet practically weak if the market is already crowded, so broad clearance protects both your legal position and your marketing investment.

Choose the correct classes with care, because they define the scope of your protection. Federal fees are charged per class, and each class covers a specific category of goods or services. Registering only the classes that match your actual and planned offerings avoids both gaps in coverage and wasted fees, and it makes your application easier to examine.

Keep specimens and first-use records organized. Registration generally requires evidence that the mark is in use — labels, packaging, screenshots of a live sales page, or advertising for services. Saving dated specimens as you launch makes both the Illinois and federal applications smoother and supports your rights if a dispute ever arises about priority of use.

Think of state and federal registration as complementary, not either-or. The inexpensive Illinois registration gives fast, local notice, while the federal registration delivers nationwide priority, the trademark registry listing, and access to federal court. Many Illinois businesses file the state mark first for immediate coverage and pursue federal registration as they expand. See how to trademark a name for the federal path.

Frequently Asked Questions

How much does it cost to trademark a business name in Illinois?

An Illinois state trademark costs a low per-class fee (about $10 per class) with the Secretary of State and lasts five years. A federal USPTO registration costs more per class but gives nationwide protection.

Is an Illinois trademark the same as registering my LLC name?

No. Registering an LLC or corporate name, or filing a DBA, only reserves the name in the business registry. A trademark protects the brand itself and is filed with the Secretary of State or the USPTO.

Do I need to use the name before registering?

Generally yes. Both Illinois state and federal registration require actual use of the mark in commerce, though the USPTO allows an intent-to-use application that matures once you begin using the mark.

When can I use the registered trademark symbol?

You may use the R-in-a-circle symbol only after the USPTO grants a federal registration. Before that, use TM for goods or SM for services to assert common-law rights.

Should I register at the state or federal level?

Register with Illinois if you operate only in-state and want a low-cost mark. File federally with the USPTO if you sell across state lines or online and want nationwide priority and stronger remedies.

Related

• Trademark basics (hub)
• How to trademark a name
• Illinois business entity search
• How to form an LLC in Illinois
• What is a DBA
• Business tax overview

Sources

1. Illinois Secretary of State — Trademarks and Service Marks (state registration; per-class fee; five-year term).
2. Illinois Secretary of State — Business Services (filings and searches).
3. Illinois General Assembly — Trademark Registration and Protection Act (765 ILCS 1036).
4. Illinois Dept. of Revenue — Businesses (state business taxes).
5. USPTO — Trademark Process (federal registration steps).
6. USPTO — Apply for a Trademark (TEAS) (online application system).
7. USPTO — Trademark Fee Information (per-class filing fees; confirm current schedule).
8. USPTO — Search Trademark Database (clearance search before filing).
9. Cornell LII — 15 U.S.C. § 1051 (application for registration; Lanham Act).
10. Cornell LII — 15 U.S.C. § 1127 (trademark definitions).
11. Cornell LII — Trademark (legal overview).
12. IRS — Business Structures (entity types overview).
13. IRS — Get an Employer Identification Number (EIN is free; issued by the IRS).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the Illinois Secretary of State and the USPTO before acting.