The Thomson Corporation (NYSE: TOC; TSX: TOC), a leading provider of information solutions to business and professional customers worldwide, today announced that it has acquired TaxStream, a leading software provider in income tax provisions, which help corporations comply, plan and remit income taxes. Based in Hoboken, N.J., TaxStream has various offices across the United States, employing approximately 100 people. TaxStream will now become part of Thomson Tax & Accounting.