Documents for use outside of Singapore may need to be witnessed or attested to by a Notary Public, and in some cases, legalised up to the relevant embassy or consulate. No legalisation is required if the destination country is a member of the Hague Convention (Apostille section).
As of 1 October 2019, it is mandatory for all notarised documents to be authenticated by the Singapore Academy of Law . Some common documents include powers of attorney, board resolutions, court documents for foreign proceedings, utility bills, bank account statements and educational certificates.