For federal tax purposes, the Internal Revenue Service has separate entity classification rules. Under the tax rules, an entity may be classified as a corporation, a partnership, a cooperative or a disregarded entity. A corporation may be taxed as either a C corporation or elect to be treated as a Subchapter S corporation. A disregarded entity has one owner (or a married couple as owner) that is not recognized for tax purposes as an entity separate from its owner. Types of disregarded entities include single-member LLCs; qualified sub-chapter S subsidiaries and qualified real estate investment trust subsidiaries. A disregarded entity's transparent tax status does not affect its status under state law. For example, for federal tax purposes, a sole-member LLC (SMLLC) is disregarded, so that all its assets and liabilities are treated as owned by its single member. But under state law, an SMLLC can contract in its own name and its owner is generally not personally liable for the debts and obligations of the entity. To be recognized as a Cooperative for tax purposes Cooperatives must follow certain rules under Sub Chapter T of the Internal Revenue Code.
It should also be noted that the state of New York requires limited liability companies to comply with an unusually strict set of publication requirements. In addition to publishing notices in two papers in the county in which your business is forming, you will also be required to provide proof of this to New York’s Department of State within 120 days of becoming officially recognized as a business. Failing to do so can result in suspension of your right to conduct business in the state.
New York Shall contain the word "corporation", "incorporated" or "limited", or an abbreviation of one of such words; there is also a long list of words a business corporation is not allowed to use without additional approval from other agencies including "board of trade", "state police", "urban development", "chamber of commerce", "state trooper", "urban relocation", "community renewal", "tenant relocation", "acceptance", "endowment", "loan", "annuity", "fidelity", "mortgage", "assurance", "finance", "savings" and many others New York State Consolidated Laws, Business Corporations Law § 301; Not-For-Profit Corporations Law, § 301
The "mit beschränkter Haftung (mbH)" suffix (German: [ˈɛmbeːˌhaː], "with limited liability") is sometimes added to the name of a firm that already ends in "-gesellschaft" ("company"), e.g., "Mustermann Dental-Handelsgesellschaft mit beschränkter Haftung" ("dental trading company with limited liability"), which would be abbreviated as "Mustermann Dental-Handelsgesellschaft mbH".