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Variable or Fixed Mortgage Rates

Jamie David

One of the first decisions home buyers and mortgage shoppers face is whether to select a fixed-rate or variable-rate mortgage.

 

What's the difference between fixed and variable rates?

With a fixed-rate mortgage, the mortgage rate and payment you make each month will stay the same for the term of your mortgage . With a variable-rate mortgage, however, the mortgage rate will change with the prime lending rate as set by your lender. A variable rate will be quoted as Prime +/- a specified amount, such as Prime - 0.45%. Though the prime lending rate may fluctuate, the relationship to prime will stay constant over your term.

To better understand the difference, and how these rate types may affect your monthly mortgage payments, watch the video below.

 

5-year fixed vs. variable mortgage rates over time

Variable rates tend to be slightly lower than fixed rates at any given time, because they are inherently less risky for lenders. However, this is not always the case, as illustrated in the chart below. You'll notice that in late 2019, 5-year variable rates were higher than fixed rates.

5-year fixed vs. variable mortgage rates from 2012 - today

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Fixed and variable mortgage rates compared

The table below lays out some of the key differences as well as the pros and cons of fixed and variable mortgage rates.

Popularity of fixed versus variable mortgage rates

Fixed mortgage rates , at 72% of total mortgages, are most common; however, 22% of mortgages, a significant minority, do have variable rates . Fixed rates are also slightly more popular with younger age groups, while older age groups are more likely to opt for variable rates.1

Comparing fixed and variable mortgage rates

You can think of the difference, or spread, between variable and fixed mortgage rates as the price of insurance that lending rates will not increase, more or less. When interest rates are low and are not expected to fall further, it is generally advised to lock in a fixed rate, as variables rates will, at best, stay the same, or increase. On the other hand, if you expect interest rates to fall with some certainty, then a variable rate is preferred, as you will be able to absorb the benefit of paying lower interest. Similarly, if the difference between the variable rate and the fixed rate is significant, it may not be worth paying the premium for the stability protection of a fixed rate.

 

Fixed and variable mortgage rate drivers

By and large, fixed mortgage rates follow the pattern of Canada Bond Yields, plus a spread, where bond yields are driven by economic factors such as unemployment, export and inflation.

 

5-year fixed rates vs. 5-year bond yields From 2000 - 2020

5-Year Fixed Rates vs. 5-Year Bond Yields

 

Variable mortgage rates are driven by the same economic factors, except variable rates fluctuate with movements in the prime lending rate, the rate at which banks lend to their most credit-worthy customers. Variable mortgage rates are typically stated as prime plus/minus a percentage discount/premium. For example, a variable rate could be quoted as prime - 0.8%. So, when the prime rate is, say, 5%, you will pay 4.2% (5%-0.8%) interest.

 

Historical prime lending rates From 1935 - Today

Historical Prime Lending Rates

 

The Bank of Canada adjusts the prime rate depending on the state of the economy, as determined by the economic factors introduced above. Together, combinations of unemployment, export, and manufacturing values shape the inflation rate. Generally speaking, when inflation is high, the Bank of Canada will increase the prime rate to make the act of borrowing money more expensive. Conversely, when inflation is low, the Bank of Canada will decrease the prime rate to stimulate the economy and improve the attractiveness of borrowing.

In terms of the discount/premium on the prime rate applied to variable rates, mortgage lenders set this based on their desired market share, competition, marketing strategy and general credit market conditions. These are the same factors that drive the spread between lenders' fixed mortgage rates and bond yields.

 

References and notes

  1. Annual State of the Residential Housing Market in Canada, Mortgage Professionals Canada, 2021

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