Ontario Winter Tire Insurance Discount: Dates, Rules & How Much You Save
Published 06 Oct 2026 · Atika Auto Parts
With winter fast approaching in Ontario, switching to dedicated winter tires is not just about keeping your family safe on snowy Highway 410 or the 401 — it is also a guaranteed way to lower your annual car insurance premium. In Ontario, all private insurance companies are legally mandated to offer an insurance discount to drivers who install four winter tires on their vehicles.
If you live in Brampton, Mississauga, or anywhere in the Greater Toronto Area, here is the complete guide to qualifying for and maximizing your Ontario winter tire discount.
How Much Can You Save on Insurance?
Most Ontario auto insurers offer a discount ranging from 2% to 5% off your total auto insurance premium. While 5% might sound modest, on Ontario insurance rates — especially in high-rate areas like Brampton and Mississauga where annual premiums frequently exceed $2,500 to $3,500 — a 5% discount translates to $125 to $175+ in savings every single year.
Over a four-year tire lifespan, your insurance savings alone can offset a significant portion of the cost of a brand-new set of winter tires.
What Are the Official Date Requirements?
While dates vary slightly depending on your insurance provider, the standard Ontario insurance window requires winter tires to be installed on your car from:
- Start Date: Between November 1st and December 1st
- End Date: Until March 31st or April 15th
Failing to keep winter tires on during this mandatory period could result in a denied claim if you are involved in a winter accident. We strongly recommend booking your tire changeover in late October or early November before the first major snowfall creates massive shop line-ups.
What Counts as an Approved Winter Tire?
To qualify for the discount, your tires must carry the official 3-Peak Mountain Snowflake (3PMSF) symbol on the sidewall. This icon proves that the tire has passed rigorous testing for severe snow grip.
- Approved: Dedicated winter tires and severe snow-rated all-weather tires bearing the 3PMSF symbol.
- Not Approved: Standard M+S (Mud & Snow) all-season tires without the snowflake emblem.
At Atika Auto Parts, 100% of the winter tires we sell carry the certified 3PMSF snowflake rating to ensure full insurance compliance.
Do You Need to Replace All Four Tires?
Yes. The law and insurance policies require all four tires to be winter tires. Installing winter tires on only the front or drive wheels is dangerous, causes uncontrollable fishtailing, and invalidates your insurance discount.
Frequently Asked Questions
How do I claim my winter tire insurance discount?
Call or email your insurance broker and notify them that you have installed four 3PMSF-certified winter tires. Most insurers will add the discount immediately; some may ask for a receipt or an invoice showing the tire brand and size.
Do all-weather tires qualify for the discount in Ontario?
Yes — as long as the tire sidewall displays the 3-Peak Mountain Snowflake (3PMSF) emblem, Ontario insurance companies accept all-weather tires for the winter discount.
When should I buy my winter tires?
The best time to buy is October. By December, popular tire sizes sell out across the GTA and tire shops experience long wait times.
Get Brand-New Winter Tires in Brampton
Beat the winter rush! Atika Auto Parts stocks brand-new winter tires in all passenger and SUV sizes with fast on-site mounting and computerized balancing at 80 Hale Rd, Unit 3, Brampton. Browse winter tires online or call +1 (647) 987-2097 for instant pricing.