AI Analysis: Canada Mortgage and Housing Corporation, conventional mortgage lending rate, 5-year term

Executive Summary

Canada's 5-year conventional mortgage rate, tracked monthly from January 1951 to January 2026 across 901 observations, tells a dramatic story of rise and fall — peaking at 21.46% in September 1981 before declining to a historic low of 3.20% in July 2021. The long-run average of 7.98% is skewed upward by the extreme 1980s rate environment, while the current rate of 5.07% (January 2026) reflects the post-pandemic tightening cycle. This 75-year dataset provides an unparalleled view of how monetary policy and inflation have shaped the cost of homeownership in Canada.

Key Findings

• The all-time high of 21.46% was recorded in September 1981, driven by aggressive monetary policy to combat inflation — nearly 4x the long-run average of 7.98% and 19 data points were flagged as statistical outliers using a Z-score threshold of 2.5.
• The all-time low of 3.20% occurred in July 2021, reflecting pandemic-era monetary easing, and was quickly followed by sharp rate hikes that created a dramatic V-shaped anomaly in the time series.
• The 1980s were the most expensive decade for Canadian borrowers, with an average mortgage rate of 13.55%, while the 2010s were the most affordable on record, averaging just 4.17%.
• Rates exceeded 12.88% (mean + 1.5 standard deviations) for 67 consecutive months between October 1979 and November 1990, representing an extraordinary and sustained high-rate anomaly.
• The distribution of rates is right-skewed, with a mean of 7.98% exceeding the median of 7.00%, and 50% of all monthly observations falling between 5.75% and 10.25% (an IQR of 4.50 percentage points).
• The full historical rate range spans 18.26 percentage points (3.20% to 21.46%), with a standard deviation of 3.27%, underscoring the extreme variability in Canadian mortgage rates over 75 years.
• As of January 2026, the rate stands at 5.07%, reflecting the post-pandemic rate hike cycle and sitting below the long-run mean but well above the historic lows of the early 2020s.