Do I need to register my overseas marriage with the Registry of Marriages (ROM) Singapore?
There is no provision in the Women's Charter 1961 that requires couples to register their overseas marriages, which includes "converting" or "endorsing" a foreign marriage certificate, in Singapore. In this regard, you are not required to register your overseas marriage with the Registry of Marriages (ROM) Singapore, in order for it to be recognised as a valid marriage. The registration of an overseas marriage is purely voluntary and administrative.
Generally, an overseas marriage will be recognised in Singapore if it was registered according to the law of the place in which the marriage was contracted. Hence, a marriage certificate which was issued by a competent authority of the relevant country, is a valid document and will be accepted as evidence of a marriage between the parties named in the certificate, unless there is reason to doubt the validity of the said marriage.
If there is any doubt on the legality of your overseas marriage, you may wish to seek legal advice from a lawyer.
Also, it is not necessary to register an overseas marriage with ROM for you to transact with Singapore's Government agencies.