The taxation outworking for the borrower under an Index Mortgage is established by Product Ruling PR 2020/4, issued by the Australian Taxation Office.  To download a copy of that ruling click here

Once people understand the (reasonably) simple principle of “you don’t pay tax because you are reducing what you owe, not earning income”, the Index Mortgage was a “no brainer” (to use their words).

Citigate Dewe Rogerson, LaunchSure Report