Background
In the past, my former spouse and I have filed tax returns as a relationship. However, during the 2023-24 financial year, we have I ended the relationship. Our living situation remains the same (living together with no formal lease agreement). Some time ago (around 2012), we registered our relationship with the QLD government, as part of the process to get citizenship for my former spouse.
Question
Do we both file individual tax returns for the 2023-24 financial year? Are there any 'spouse' tests that I need to be aware of to ensure we're individuals and not in a relationship in the eyes of the ATO.