What is a Business Number (BN)?
A Business Number relates to a business as a Social Insurance Number (SIN) relates to an individual. CCRA issues this nine-digit number when you register for any of four CCRA accounts: GST, Payroll Deductions (CPP, EI, Income Tax), Import/Export and Corporate Income Tax. This number is designed to simplify and streamline interaction with CCRA.Related information is available at the Canada Business Services Centre web site.