G'day Travis,
How long have you and your wife been separated? You may want to apply for a divorce after you’ve been separated 12 months and get a property settlement. The
Family Law Courts site has some good information about property and money matters after separation and divorce (it also has good information on children and parenting arrangements).
In terms of property settlement, there are options for the process:
If you agree about property and money, or
If you don’t agree about property and money.
If you can’t agree and have to get the family court to decide, one of the things the court will consider is
“looking at the direct financial contributions by each party to the marriage such as wage and salary earnings”. So you would be able to highlight you additional contributions and might put forward that you’re entitled to more at the property settlement because you’re contributed more to the mortgage. You could areee to this, or if your wife won’t agree, then you’d have to submit that to the court.
Have you raised the issue with your wife to come to an agreement that you won’t pay for the mortgage as you’re already paying for rent and whether she can realistically cover the full mortgage payments without your contribution? Perhaps you applying for divorce and getting property settlement going will help her to realise that she needs to make a decision about dividing your assets.