Updating Company Particulars

Key requirements

File changes to the company name, registered address and financial year end with ACRA; IRAS updates these records weekly, without a separate routine notice. Where a refund or correspondence is imminent, the page describes an urgent update request through myTax Mail. Posted tax notices are sent to the registered address, so a correspondence address cannot simply replace it. A principal activity or SSIC change must be notified to both ACRA and IRAS; IRAS requests the effective date and updated business profile. Tax agent access is managed through Corppass, including the appropriate Preparer or Approver role. A financial year change may also affect the ECI reminder and allocation of profit across YAs, so updating particulars is part of tax compliance rather than an administrative formality.