Organization and Basis of Presentation

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Organization

HSBC USA Inc. (“HSBC USA”), incorporated under the laws of Maryland, is a New York State based bank holding company and an indirect wholly-owned subsidiary of HSBC North America Holdings Inc. (“HSBC North America”), which is an indirect wholly-owned subsidiary of HSBC Holdings plc (“HSBC”). HSBC USA (together with its subsidiaries, “HUSI”) may also be referred to in these notes to the consolidated financial statements as “we,” “us” or “our.”

Through our subsidiaries, we offer a comprehensive range of personal and commercial banking products and related financial services. HSBC Bank USA, National Association (“HSBC Bank USA”), our principal U.S. banking subsidiary, is a national banking association with banking branch offices and/or representative offices in 16 states and the District of Columbia. In addition to our domestic offices, we maintain foreign branch offices, subsidiaries and/or representative offices in Europe, Asia, Latin America, and Canada. Our customers include individuals, including high net worth individuals, small businesses, corporations, institutions and governments. We also engage in mortgage banking and serve as an international dealer in derivative instruments denominated in U.S. dollars and other currencies, focusing on structuring of transactions to meet clients’ needs.