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trader

noun · Unternehmer

In consumer law the trader is the Unternehmer of § 14 BGB, anyone acting in the exercise of their commercial or independent professional activity. The German word carries two further lives, the building contractor of the works contract and, in ordinary speech, the entrepreneur, while the merchant of commercial law is the Kaufmann and the undertaking of competition law das Unternehmen.

Which translation, when

Unternehmerthe consumer-law counterpart: § 14 BGB defines the Unternehmer as anyone who, on concluding a legal transaction, acts in the exercise of their commercial or independent professional activity, natural persons, legal persons and partnerships with legal capacity alike; the pairing with the Verbraucher of § 13 BGB decides which protective regime applies, and the consumer entry holds that side.
drei deutsche Wörterthe neighbours: der Kaufmann is the merchant of the Commercial Code, a status with its own consequences in form, notice and custom, das Unternehmen is the business as an entity and the word of competition and undertaking law, and der Unternehmer of § 631 BGB is the contractor who owes a work, which is why a construction contract calls one side Unternehmer with no consumer-law meaning at all.
englische Vielfaltthe source words: EU and UK consumer legislation says trader, commercial documents say business, competition law says undertaking, and entrepreneur names the founder rather than a legal status; the translation has to pick from the German set by the branch of law and by function, since none of the four English words maps onto one German term across the board.

Why

Trader in a consumer-law text is the Unternehmer of § 14 BGB, anyone who on concluding a legal transaction acts in the exercise of a commercial or an independent professional activity, and unlike the consumer definition this one covers natural persons, legal persons and partnerships with legal capacity alike. The pair Verbraucher and Unternehmer decides which protective regime applies to a contract, and the consumer entry holds the other half. The translation difficulty lies on the German side, where one word does three jobs. Beside the consumer-law Unternehmer stands the Unternehmer of § 631 BGB, the contractor who owes a work under a Werkvertrag, so a building contract names one party Unternehmer without any consumer-law implication whatever; and in ordinary speech the word carries the sense of entrepreneur, the person who runs a business. Two neighbouring terms complete the picture. Der Kaufmann is the merchant of the Commercial Code, a status that brings its own rules on form, on the duty to examine and give notice of defects and on commercial custom, and it is narrower than Unternehmer, so a freelance translator is an Unternehmer but not a Kaufmann. Das Unternehmen is the business as an entity, the word competition and merger control work with, corresponding to undertaking rather than to trader. English supplies four words for this field, trader in consumer legislation, business in commercial documents, undertaking in competition law and entrepreneur in ordinary usage, and none of them maps onto a single German term across the board, so the branch of law has to decide each time.

Typical mistakes

  • The Unternehmer of § 14 BGB is the consumer-law counterpart while the Unternehmer of § 631 BGB is the contractor of a works contract, so the same word in a building contract carries no consumer-law meaning.
  • Kaufmann is the narrower commercial-code status, so using it for every trader imports rules that do not apply to all businesses.
  • Undertaking in competition law is das Unternehmen, so rendering it as Unternehmer moves the text from the entity to the person.

What matters

Working through a bilingual consumer contract: the German should say Unternehmer for the trader under § 14 BGB, keep Kaufmann for commercial-code status and Unternehmen where the source means the business as an entity.

Authority

  1. § 14 BGB
  2. § 631 BGB

What the machine misses

Automatic output for trader lands on Händler or Gewerbetreibender, and consumer legislation works with the Unternehmer of § 14 BGB, whose counterpart is the Verbraucher; the machine words also miss that German uses Unternehmer again for the contractor of a works contract and keeps Kaufmann and Unternehmen for quite different roles.

See what the machine does with this clause →

Examples

a trader within the meaning of the Civil Codeein Unternehmer im Sinne des Bürgerlichen Gesetzbuchs
the business customerder gewerbliche Kunde
an undertaking within the meaning of competition lawein Unternehmen im Sinne des Wettbewerbsrechts
the contractor owes the workder Unternehmer schuldet das Werk

More notes on these sections

consumer Verbraucher

Checked 09 Aug 2026 finepost.co.uk/notes/trader