A private first or a private second — the Mississauga arithmetic
These are different products and the choice is usually decided by what your existing mortgage costs, not by which is cheaper on its own. A private FIRST replaces the mortgage you have: on Mississauga's $898,510 value at 75% loan-to-value that is $673,883, about $4,206 a month interest-only at 7.49% — and it prices your whole balance at the private rate, including the part that is currently sitting at an A-lender rate. A private SECOND leaves that first alone and sits behind it: to the 85% combined ceiling, behind the $449,255 first this page assumes, that is $314,479 at 12.99%, or $3,404 a month interest-only. The second carries the higher rate because it recovers last if the house sells, and it is still normally the cheaper answer, because only the new money is priced at it. The exception is a first that is already expensive, or a first whose lender will not permit a charge behind it — and that is a question we answer by reading your existing commitment, not by guessing.