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Knowledge Centre · Classification

Trade mark classes explained

A class number is only a filing category. The goods and services written inside it determine what the registration actually protects.

Reviewed and updated 1 September 2026

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Every UK trade mark application must identify the goods or services for which protection is sought. The international Nice Classification divides them into 45 classes: Classes 1 to 34 cover goods and Classes 35 to 45 cover services.

The wording matters more than the number

Owning a registration in Class 35 does not give protection for everything in Class 35. The scope depends on the specific services listed in the registration.

How does the classification system work?

Classes group broadly related goods or services so that applications, searches and official fees can be administered consistently. Examples include:

ClassExamples
9Downloadable software, mobile applications and electronic publications
25Clothing, footwear and headgear
35Advertising, business services and some retail services
41Education, training, entertainment and sporting activities
42Software as a service, technology and scientific services
43Restaurant, café and temporary accommodation services

These examples are only broad indications. Similar-looking commercial activities can fall into different classes depending on whether the applicant supplies goods, performs a service, licenses technology or operates a marketplace.

What is a trade mark specification?

The specification is the formal list of goods and services attached to the application. It should describe what the applicant genuinely provides or intends to provide and should be drafted clearly enough for the registry and third parties to understand the claimed scope.

For example, “clothing” and “retail services connected with the sale of clothing” are different activities. A company that sells its own clothing may need Class 25 for the goods. Whether it also needs Class 35 depends on the retail service and commercial model; it should not be assumed that every seller automatically needs both.

How many classes do you need?

There is no ideal number. The correct classes depend on the business, not the size of the applicant or the number of products sold. Start with these questions:

  1. What does the business supply to customers now?
  2. Which activities generate or will generate revenue?
  3. What will realistically be launched in the near future?
  4. Does the business supply physical goods, services, software or a combination?
  5. Which activities would be most damaging if another business used a similar mark?

A single focused class may be sufficient for one business, while another business may reasonably need several. Adding classes simply to appear broader increases cost and may create additional earlier-right conflicts.

Can classes or products be added later?

After filing, the application can generally be restricted but not broadened. New classes, goods or services cannot simply be added to the same application. If important activities were omitted, a further application may be necessary with a later filing date and additional official fees.

This is one reason to consider realistic development plans before filing. It is also why copying a competitor's specification or choosing only an attractive class heading can be a false economy.

How do classes affect the fee?

The UKIPO online fee is £205 for the first class and £60 for each additional class. Under the TRD complete package, one class is included in the £749 price. Each additional UK class is £125, including the extra official fee, professional specification work and UK VAT.

See our full explanation of UK trade mark registration costs.

Common classification mistakes

  • Choosing a class solely from its heading without identifying the actual goods or services
  • Protecting retail services but omitting the applicant's own branded goods
  • Using vague expressions that the UKIPO may not accept
  • Listing every conceivable activity without a genuine commercial basis
  • Missing software, online services or downloadable products because the business also supplies physical goods
  • Assuming that the class number alone defines the monopoly
  • Expecting to add new activities after the application has been filed

How professional preparation helps

A useful specification balances present operations, credible expansion and conflict risk. It should protect the commercial core without becoming an indiscriminate catalogue. Professional preparation can also identify when apparently connected activities sit in different classes and when a proposed term may be too vague or unnecessarily narrow.

TRD reviews the applicant's business description and prepares the specification before filing. The applicant approves the final wording, so the scope is understood rather than hidden inside a form.

Unsure which classes you need?

Request a free assessment or choose the UK package. We will review the business activities and prepare the specification before filing.