What is separation under one roof?

Separation under one roof in Australia refers to a situation where a married couple lives in the same residence while being separated emotionally or legally. This can occur when couples decide to separate but choose to continue living together for various reasons, such as financial constraints, childcare or logistical issues. 

The married couple living under one roof may need to provide additional documentation to demonstrate that they are indeed separated in the form of affidavits from the parties involved or other witnesses like family or friends affirming the nature of the separation.