Unique Entity Number (“UEN”) is the company registration number issued to a company upon incorporation, by the Accounting and Corporate Regulatory Authority (ACRA). A Certificate of Incorporation can be purchased from the ACRA to confirm that the company has been incorporated in Singapore and has been issued the said registration number.
It is essential that the company discloses its registration number on all official correspondence with government authorities, business letters, audited accounts, invoices; and any other official notices sent out by the company. Government agencies, in particular, will often refer to a company by its registration number. For example, the Inland Revenue Authority of Singapore (IRAS) uses the company’s registration number as its tax reference number.