When conducting business through a corporation, you are required to make it clear to anyone doing business with the corporation that it is an incorporated entity and that the representatives of the corporation are not personally liable for the activities of the corporation. If a corporation intends to publicly identify itself using a name other than its company name, it may do so by registering a business or trade name. If the company carries on business under a registered business or trade name, it must set out both its registered name and its corporate name on all contracts, invoices, negotiable instruments, and other orders for goods and services issued or made by the corporation. If no registered business or trade name exists, the corporation is required by law to identify itself to the public using only its corporate name. If you do not make it clear that the business is being conducted by a corporation, a creditor could argue that they believed that they were dealing with an individual and that their claim should be satisfied out of the personal assets of that individual.