最好在14天之内办理，超出14天之后在42天以内可以去ICA办理
以下取自ICA网站：http://www.ica.gov.sg/page.aspx?pageid=144
When to Register Birth
Birth Registration
Births should be registered within 14 days from the date of birth, including Sundays and public holidays.
Delayed Registration
Delayed registration refers to births registered after 14 days and within 42 days. Delayed registration is strongly discouraged.
Late Registration
If registration is done after 42 days, a letter of explanation stating the reason for late registration must be submitted for the Registrar/Registrar General's approval. Late registration cases can only be registered at ICA.
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孩子出生后，医院会给个报告，拿着这个报告，还有夫妻双方的IC，去办理出生注册。在医院的某个地方是可以直接办理的，不需要去ICA，只是要收手续费，但是方便。孩子爸爸带着材料去办就可以了，妈妈还要休息的。
办完出生注册以后，直接拿到塑封的Birth Cert，然后可以去办理Baby Bonus的手续。
2 个回答
还有，拿到小孩的Birth Cert之后，尽快办理孩子的住院保险
通常孩子两周就可以办理投保了。