A $150,000 income comfortably clears Saskatoon's benchmark price of $444,700 on the housing-cost test alone, so the housing ratio is rarely the binding constraint at this income level; it is almost always the debt-service side that determines the real ceiling.
Paying down a car loan or a credit card balance before applying can free up meaningful room under the 44 percent debt-service ceiling, sometimes more than saving an equivalent amount toward the down payment would, because it directly raises what a lender will approve rather than just adding to your cash on hand.
Run the numbers with your actual debts included, not a clean-slate scenario, since that is where a $150,000 income calculation most often surprises people. Get your hand-reviewed valuation from Joel Dyck.