Who a 5-year fixed suits
A 5-year fixed suits you if you want the same payment in 2031 that you have today, and you're reasonably confident you won't move, refinance or break the mortgage before then. Most Canadian borrowers meet both conditions.
You're trading flexibility for certainty. A fixed rate doesn't move when prime moves, but it's also the term with the most expensive exit. Break a 5-year fixed in year 2 and the penalty is the greater of 3 months of interest or the interest-rate differential (IRD). At a big bank, the IRD is calculated against a posted rate you never paid.
If there's a realistic chance you'll sell, separate, relocate or refinance during the term, a 3-year fixed or a variable often fits better than a 5-year fixed at a slightly lower rate. We'll tell you that before you sign.