A canadian trick for mortgage deduction

Seems like mortgage deduction is at risk in the US. In Canada, interests paid on mortgage are not tax-deductible. But many use an old, legitimate trick.

Mortage interests are not tax-deductible, but loans used for investment purposes are on gains made by these investments. The trick is to use your investments to pay your mortgage and get a loan of the same amount to reinvest it. Now, your loans are tax deductible. Even if the interest are higher on a personal loan than that of a mortgage, since income tax rates are high in Canada, you generally save (unless your credit score is so low that your personal loan would be too high).