[NOTICE]: Please note that from 11 April 2021, you will be required to login to government digital services for businesses (G2B) using SingPass instead of CorpPass. For more information, visit go.gov.sg/corporate-login. [SCHEDULED MAINTENANCE]: All API services for Sandbox & Production environment will be unavailable from 15 September 2024 (Sunday), 0200 AM to 0530 PM. Should you have any queries or encountering any issues, kindly reach out to us at digital_partnerships@iras.gov.sg. Weekly Maintenance Hours (Singapore Time): Everyday 1:00 PM – 3:00 PM | Monday to Saturday 8:00 PM – 10:00 PM | Sunday 8:00 PM - 3:00 AM Singpass & Corppass Maintenance Hours (Singapore Time): Every Wednesday 3:00 PM – 11:59 PM |