Trademark Classes: How to Choose the Right One Before You File

A trademark class isn’t just a box on the USPTO application form. It’s the first thing an examining attorney looks at when running a conflict search, and it defines the exact boundary of what your registration actually protects. Get it wrong, and the application can move through examination without a hitch, only to leave your brand exposed in the market you actually operate in.

At IP Boutique Law, we’ve reviewed thousands of classification decisions from the examiner’s side of the desk, and misclassification is one of the more expensive mistakes we see business owners make on their own.

The United States Patent and Trademark Office assigns every application to at least one of 45 international classes, using the Nice Classification system adopted from the World Intellectual Property Organization. Thirty-four classes cover goods; eleven cover services. The base filing fee is $350 per class, current for 2026 under the fee schedule that took effect January 18, 2025.

Last updated: July 2026

What Is the Nice Classification System?

The Nice Classification groups every type of good and service into one of 45 numbered categories, and it’s the system the USPTO and more than 80 other countries use to organize trademark applications. It came out of the 1957 Nice Agreement, which the USPTO formally adopted in the 1970s after years of using a US-specific numbering system.

Most applicants treat classification as paperwork. Examiners use it as a search tool. When your application reaches examination, the assigned classes tell the examining attorney where to look for conflicting marks, and they shape the likelihood of confusion analysis under Section 2(d) of the Lanham Act. Two marks can sit in completely different classes and still get refused if the goods or services are commercially related enough that consumers would assume a shared source. A clothing brand and a footwear brand in adjacent classes face this regularly.

Coordinated classes matter here too. The USPTO doesn’t limit its conflict search to your exact class number. It also checks classes the Office has identified as commercially related to yours, which is why a mark that looks clear in your chosen class can still get flagged over a registration sitting in a class you never considered.

Goods vs. Services: Where Your Business Actually Falls

Classes 1 through 34 cover physical goods; classes 35 through 45 cover services. That split sounds simple until a business sells both under the same brand, which is the norm rather than the exception.

A company that manufactures skincare products (Class 3) and also runs an online store selling them (Class 35) needs both classes to cover the full scope of what it does. Selling your own goods online doesn’t automatically extend your goods registration to cover retail services. They’re evaluated, and protected, separately.

Business Activity	Typical Class
Manufacturing or selling a physical product	Goods class (1-34)
Operating a retail store, online or physical	Class 35
Providing a service (consulting, education, software access)	Services class (35-45)
Offering both a product and a related service under one brand	Multiple classes

The USPTO’s Trademark ID Manual lists pre-approved descriptions for each class. Using this manual’s exact language, rather than a custom description, avoids the $200-per-class surcharge the current fee structure applies to free-text identifications.

Most Common Trademark Classes for US Businesses

Most small and mid-size businesses land in a small handful of classes, and knowing the common ones speeds up the initial assessment before a full clearance search.

Class	Covers
Class 9	Software, apps, downloadable content, electronics
Class 25	Clothing, footwear, headwear
Class 35	Retail services, advertising, business consulting
Class 41	Education, entertainment, training services
Class 42	SaaS, technology services, non-medical scientific services
Class 43	Restaurants, hospitality, food service

Software is the class that trips up the most applicants. A downloadable app sits in Class 9. A cloud-based platform accessed without downloading anything usually belongs in Class 42, since it’s classified as a service rather than a product. The distinction isn’t cosmetic. Filing a SaaS product under Class 9 because “it’s software” is a common misclassification that surfaces during examination.

Before locking in a class, it’s worth running a trademark search against both your target class and its coordinated classes. What looks clear in isolation can change once related classes enter the picture.

Multi-Class Applications: When and Why

A multi-class application lets you cover goods or services across more than one international class in a single filing, at $350 per class. If your brand covers clothing (Class 25) and a retail operation selling that clothing (Class 35), a two-class application runs $700 in government fees rather than the $350 for a single class.

The strategic question isn’t whether multi-class filing is available. It’s whether you actually need it now. The USPTO does not allow classes to be added to a pending or registered application. Adding coverage later means filing an entirely new application, at full fee, with a new filing date and no benefit of your original priority. If your business already sells goods and provides a related service under the same brand, filing both classes at once is almost always cheaper than filing twice.

We walk clients through exactly this tradeoff during the application process, because the fee difference between filing correctly the first time and refiling later isn’t small. For a full breakdown of what a trademark application costs by class count and filing basis, we cover the complete fee structure separately.

What Happens If You Choose the Wrong Class

Choosing the wrong class doesn’t automatically end the application, but it does trigger delay and, in some cases, a scope of protection that never matches what the applicant intended. Under TMEP §1401.03(b), an examining attorney who identifies an incorrect class must require the applicant to amend the classification before the application can proceed. That means an office action, a response deadline, and time added to a process that already runs 12 to 18 months without complications.

Here’s the part most guides skip: classification and description aren’t independent. You can’t simply swap the class number. Amending the classification usually means amending the underlying goods or services description, and the USPTO only allows applicants to narrow that description, never broaden it. If the original filing described the wrong goods entirely, narrowing won’t fix it. The application has to be abandoned and refiled, and the government filing fee is non-refundable either way.

The more expensive version of this mistake is quieter. An application can clear examination and register in a class that’s technically accurate but commercially too narrow, leaving the actual core of the business unprotected. A registration is only as useful as the classes it covers, and a mark that registers cleanly in the wrong class still leaves the brand’s real market exposed to a later filer.

Common Class Filing Mistakes That Lead to Office Actions

A handful of errors account for most classification-related office actions we see.

• Overly broad or vague descriptions. “Computer services” isn’t specific enough for the USPTO’s standards; “cloud-based software for inventory management” is. Vague descriptions get flagged regardless of whether the class number itself is correct.
• Ignoring coordinated classes during the clearance search. Checking only the exact class you plan to file under misses conflicts sitting in commercially related classes the examiner will search anyway.
• Filing narrow when expansion is already planned. If a product line under development will launch within the next few months, filing without it now means a second application and a second set of fees when it launches, since nothing can be added to the pending filing.

Trademark Class Questions Business Owners Actually Ask

Getting Classification Right the First Time

Classification decisions made in the first ten minutes of preparing an application shape everything that follows: the fee, the scope of protection, and how the examiner searches for conflicts. A mark that registers in the wrong class still leaves the business it was meant to protect exposed.

We approach class selection the way an examining attorney evaluates it, checking coordinated classes and description language before a single dollar gets spent on a filing fee, not after an office action arrives. If you’re preparing to file, our trademark team can review your goods and services before submission and confirm the classification actually matches what your business does.

IP Boutique Law is a patent and intellectual property firm in Washington, D.C. with 25+ years of USPTO examiner experience. Our team handles patent drafting, prosecution, trademark registration, design patents, provisional applications, ex parte reexamination, and patent reissue across chemical, biochemical, electrical, and mechanical fields. We serve inventors and companies in the U.S. and internationally, bringing insider examiner knowledge to every stage of the patent process.

Reviewed by Carlos López, patent attorney and former USPTO examiner with 25+ years of IP experience.