The UEN is the single identifier assigned by ACRA to every Singapore business entity on incorporation — it appears on every invoice, IRAS filing, CPF submission and InvoiceNow Peppol address. CorpPass is the corporate digital identity used to access every government portal, from IRAS myTax Portal and InvoiceNow enrolment to CPF Board and MOM services. Getting both set up correctly from the start eliminates a persistent source of submission rejections.
Without a correctly configured CorpPass account linked to the UEN, the company cannot access IRAS, InvoiceNow or CPF Board — yet the setup involves multiple agencies and non-obvious sequencing.
Step-by-step onboarding checklist: ACRA registration → UEN assignment → CorpPass administrator setup → IRAS myTax Portal access → InvoiceNow Peppol enrolment, with document templates at each stage.
UEN reference data becomes inconsistent across IRAS, CPF Board and MOM records when address or officer details are updated, causing submissions to be rejected.
Central company profile that propagates UEN and CorpPass-linked data automatically to every invoice, contract and agency submission, keeping all records in sync.
Consistent IRAS and ACRA data across every document from the first day of operations.
