analysis Why the Australian dollar is rising â and what that's got to do with your mortgage repayments WedWednesday 24 updated WedWednesday 24 FebFebruary 2021 at 10:37pm The Australian dollar is moving higher for several different reasons, but one of those reasons is also tied to how much you'll be paying on your monthly mortgage repayments. ( Share Print text only The Australian dollar is on the move, now hovering around 80 US cents. Over February alone it's gained roughly 5 cents against the US dollar. That's quite a move for any currency. The Australian dollar is increasing in value for several reasons, and one of those reasons is also tied to how much you'll be paying on your monthly mortgage repayments â potentially as soon as later this year.