Your interest rate won’t change throughout your mortgage term when you choose a fixed rate mortgage from TD Canada Trust. Choosing a variable rate mortgage, on the other hand, would mean your interest rate is bound to fluctuate from time to time due to changes in the TD mortgage prime rate. Apart from these two mortgage products, which come with open and closed terms, TD Canada Trust offers other products such as the multi-unit residential mortgage, the high ratio mortgage, a six-month convertible mortgage, a farm mortgage, the Green mortgage, and a 7 percent cash back mortgage, and a 5 percent cash back mortgage.