We have a Line of Credit in joint names as it is secured by our PPOR (in joint names). We have drawn down (used) some of it to purchase shares in joint names so for tax purposes the interest expense on the LoC is claimed 50% each. However, if an amount is drawn down from the LoC and used to purchase units in Navra fund in my name (not in joint names), then what is the tax treatment for the interest expense in this amount? Am I entitled to claim all the interest expense on this particular amount because its purpose is for investing by me? Or, can I only claim 50% of the interest expense because the LoC is in joint names? Thanks for any comment.