Classification is "strictly ministerial"—it organizes your goods for the USPTO's convenience and does not, by itself, define your rights. But it is decisive in practice: it drives your fees (charged per class), the scope of the examiner's conflict search, and the completeness of your protection. Get the identification right and you fence in exactly the territory you occupy. This checklist makes that disciplined. For the full tour of all 45 classes, see USPTO Trademark Classes; for the surrounding application steps, Federal Trademark Application Checklists.

Phase 1 — Inventory every offering

  • List every product the brand sells or will sell (physical goods).
  • List every service the brand performs for others.
  • Separately list software, noting delivery mode: a downloadable app (a good) versus hosted SaaS (a service).
  • Note any retail or e-commerce store activity (the retailing itself is a service, distinct from the goods sold).
  • For each item, mark whether it is in current use or covered by a bona fide intent to use (§ 1(b), 15 U.S.C. § 1051(b)).

WHY / traps. The most common and most dangerous mistake is under-classifying—the brand that thinks it is "one class" is usually three or four. A single product line touches the physical good, the app, the website store, and the support service. Inventory everything before you reach for class numbers.

Phase 2 — Find the class and approved wording in the ID Manual

  • Search each item in the USPTO Trademark ID Manual to find its assigned class and pre-approved description.
  • Record the true class count—the main driver of cost.
  • Watch for classification surprises (e.g., water bottles in Class 21, downloadable app in Class 9 vs. non-downloadable SaaS in Class 42).
  • Use ID Manual wording verbatim wherever it fits, to avoid surcharges and speed examination.
  • If nothing in the Manual fits a genuinely novel offering, draft custom language that mirrors the Manual's structure and specificity.

WHY / traps. The ID Manual is the single highest-leverage free tool: it tells you your true class count, gives examiner-acceptable wording, and surfaces traps before you pay. The Class 9 / Class 42 software line swallows huge amounts of modern tech law—decide deliberately and file in both if your product exists in both forms. The Manual refreshes weekly.

Phase 3 — Draft accurate, properly scoped identifications

  • Replace any bare class heading or class number with a specific, definite description ("t-shirts, sweatshirts, and baseball caps," not "clothing" or "IC 25").
  • Describe your real product line fully—accurate breadth—because you can narrow later but never broaden after filing (TMEP § 1402.06).
  • Confirm each identification is definite enough to classify and understandable to an ordinary English speaker (37 C.F.R. § 2.32(a)(6); TMEP § 1402.01).
  • Assign each item to its correct international class (37 C.F.R. § 2.85 adopts the Nice list).
  • Claim only the classes you genuinely use or intend to use—resist "cover everything."

WHY / traps. A class heading is never an acceptable identification in the U.S., unlike many countries that let you claim a whole heading. The one-way door is real: start with "hats" and you cannot later expand to "all headgear." But over-broad/aspirational claims invite later cancellation for non-use and proof-of-use audits—claim your real lanes.

Phase 4 — Decide the class count, fees, and structure

  • Confirm the per-class base fee and any surcharges on the current USPTO fee schedule.
  • Avoid the "insufficient information" surcharge by filing a complete application.
  • Avoid the free-form identification surcharge ($200/class as set by the 2025 rule) by using ID Manual wording — this is the biggest behavioral cost lever.
  • Avoid the lengthy free-form text surcharge by keeping any custom wording concise.
  • Decide on a single multi-class application (37 C.F.R. § 2.86) vs. separate filings.
  • Plan one specimen per class showing use of the mark on those particular goods/services.
  • Know you can later delete a refused class or divide the application (37 C.F.R. § 2.87) so clean classes register.

WHY / traps. Fees scale linearly with class count, at filing and at every maintenance step (Sections 8 and 9). On January 18, 2025 the USPTO retired the TEAS tiers for a single base fee plus behavior-based surcharges—old TEAS Plus/Standard figures are obsolete. A four-class ID-Manual filing avoids ~$800 in custom-ID surcharges versus free-form drafting. A common stumble is assuming one specimen covers a multi-class application; each class needs its own.

Phase 5 — Clear coordinated and related classes

  • Search not just your class but the coordinated and related classes the examiner will cross-search.
  • Check the fashion cluster (Class 25 clothing ↔ Class 35 retail ↔ textile/accessory classes) and the software cluster (Class 9 ↔ Class 42 ↔ Class 38).
  • Assess conflicts by relatedness of goods, not shared class numbers (the DuPont relatedness inquiry).
  • Run any design search codes for logo elements alongside the class search.

WHY / traps. Conflicts follow relatedness, not class numbers: two marks in the same class can coexist, and two in different classes can collide. A clothing brand that clears Class 25 but ignores Class 35 can sail through filing only to draw an opposition from a similarly named retailer. See How to Conduct a Comprehensive Trademark Clearance Search.

Common mistakes

  • Under-classifying and leaving real product lines unprotected.
  • Filing a bare class heading or number as the identification.
  • Writing custom descriptions when an ID Manual entry exists (a $200/class penalty post-2025).
  • Treating "our software" as one class when downloadable (9) and SaaS (42) differ.
  • Drafting so narrowly you trap yourself behind the no-broadening rule.
  • Over-classifying to "cover everything," inviting non-use cancellation.
  • Forgetting the per-class specimen.
  • Quoting obsolete TEAS-tier fees or defunct pre-1973 U.S. class numbers.

Primary authority

  • Regulations: 37 C.F.R. §§ 2.85 (classification), 2.86 (multi-class), 2.87 (division), 2.32(a)(6) (identification); TMEP §§ 1401–1402, 1402.06 (no broadening), 1401.03(b) (ministerial).
  • Treaty: Nice Agreement (1957); Nice Classification administered by WIPO (wipo.int); 12th edition with annual updates.
  • Case: In re Nett Designs, Inc., 236 F.3d 1339 (Fed. Cir. 2001).
  • Statute: Lanham Act § 1(b) (intent to use), 15 U.S.C. § 1051(b); maintenance fees per class, 15 U.S.C. §§ 1058, 1059.
  • Tools: USPTO Trademark ID Manual; USPTO fee schedule (uspto.gov).

Confirm current fees and the live ID Manual before filing; figures and classifications change.

Related resources

This checklist is general information, not legal advice. Consult qualified trademark counsel about any particular mark.