As soon as your RRSP equals the amount you owe on your mortgage - you can set up what is called a Self Directed RRSP Mortgage and use the RRSP to completely pay off the mortgage.
You then set up a plan to pay back your RRSP over the next 25 years. And here is the best part - you pay interest on the RRSP Mortgage to yourself - not the bank. ... more : http://rrsp-mortgage.blogspot.ca/2010/02/whats-rrsp-mortgage.html
