As of January 2016, insurance companies in Ontario offer auto insurance discounts to policyholders that outfit their vehicles with winter tires. The purpose of this is to motivate drivers to install snow tires on their cars, which are known to be much safer than all-season tires during the winter months. Winter tire discounts vary but typically fall around 5%. Beyond simply swapping out your summer or all-season tires for winter tires, there are a few other conditions drivers must meet to be eligible for this discount.
First, drivers must ensure they purchase a set of four winter tires (winter tires are distinguished from all-season tires by the snowflake inside a mountain peak emblem). Further, you must notify your insurance company that you have purchased the tires and should be prepared to show a copy of the receipt or invoice to prove your claim.
Finally, the winter tires must be installed on your vehicle before the specified start date and left on until the specified end date. These dates vary between insurance companies but are usually from December until March.