The mortgage on the house I currently live in currently stands at $1000 outstanding balance. Because I made extra payments, directly into the mortgage ie not into an offset account.
If I withdraw only the amount I paid in extra on the mortgage eg $800 000 and then used that to purchased another property for us to live in,
I then let the current home.
Would the interest on the $800 000 be a tax deductable expense? Given that the mortgage was incurred to purchase the property.