Criteria for being classed as single if still living together?

[Starfish]

Thanks. I was afraid of that...
I pay all the bills, do all the shopping, basically do everything except for looking after the kids, which we share. But on the flipside, we haven't really told anyone because we don't talk to people irl...

[trishalishous]

yes you can be separated under one roof, but you usually need statements from friends and family to say that you arent in a relationship, just sharing a house to co parent.
no joint finances or sharing meals etc, and you need to prove that you share bills evenly (bank statements showing that you are paying half each on the accounts.)
and if you DO reconcile, centrelink has been known to allege that you were together the whole time, and raise a debt. (one woman had another baby to her ex, so clink deemed that as in a relationship and made her back pay 2 yrs of PPS)