Corppass, or Corporate Pass, is a digital identity authentication and authorization system used in Singapore. It is designed to provide businesses and organizations with a secure way to access various government e-services and perform administrative transactions online.   Your company must first authorize its staff or a third party (e.g. tax agent) in Corppass before they can access the digital services at mytax.iras.gov.sg on behalf of your company.   To setup Corppass, follow the step-by-step guides at corppass.gov.sg