Registering for a Singapore Unique Entity Number (UEN)

In order to start a registration with the SSIR you must first obtain a Singapore Unique Entity Number (UEN). A UEN is a unique entity number you receive when you register your business with the Account and Corporate Registry Authority (ACRA), for more information see Who Must Register with ACRA?. The amount of time to process can vary depending on how easily the ACRA can validate your request.