If you are shopping for window tint in Toronto or anywhere in the GTA, one of the first questions you probably have is: is 20% tint legal in Ontario? The short answer is that 20% tint is legal on the rear windows of your car, but it is not legal on the front side windows or the windshield. Understanding exactly where the line is drawn can save you a ticket, a failed inspection, and the cost of having your film removed.
In this guide, the team at Tint by Designs breaks down Ontario's window tint laws, explains what 20% VLT actually means, and shows you how to get a dark, private look on your vehicle while staying 100% legal.
What Does 20% Tint Actually Mean?
Tint percentages refer to Visible Light Transmission, or VLT. VLT is the percentage of visible light that passes through the window and the film combined. A 20% tint allows only 20% of visible light through the glass, blocking 80% of light. The lower the number, the darker the film.
- 70% VLT: very light, almost clear, the legal minimum for front side windows in Ontario
- 50% VLT: light smoke, a subtle shade
- 35% VLT: medium tint, a popular balanced look
- 20% VLT: dark, strong privacy, legal on the rear only in Ontario
- 5% VLT: limo tint, nearly opaque from the outside
So when someone asks for "20% tint," they are asking for a fairly dark film that gives strong privacy and a sleek look but lets in very little light.
Ontario Window Tint Laws Explained
Window tinting in Ontario is regulated under the Highway Traffic Act and the vehicle inspection standards maintained by the Ministry of Transportation. The rules are based on light transmittance, not on the colour or brand of the film.
Front Windshield
You cannot tint the front windshield below the manufacturer's AS-1 line (usually the top 16 cm). A narrow sun strip at the very top is allowed, but the main viewing area of the windshield must remain clear.
Front Side Windows
The front side windows, the ones next to the driver and front passenger, must allow at least 70% of light to pass through. This means you cannot legally apply a dark film like 20% or 35% to the front side windows. Even a 50% film, when combined with the slight tint already built into most factory glass, often drops below the 70% limit.
Rear Side Windows and Rear Windshield
There is no minimum light transmittance requirement for the rear side windows or the rear windshield on a passenger vehicle. This means 20% tint, 5% limo tint, or anything in between is legal on the back of your car, provided the vehicle is equipped with side mirrors.
So, Is 20% Tint Legal in Ontario?
The answer depends entirely on which window the 20% film is installed on:
- Front windshield: No, 20% tint is illegal except for a small top sun strip.
- Front side windows: No, 20% tint is illegal. Front sides must be 70% VLT or higher.
- Rear side windows: Yes, 20% tint is legal.
- Rear windshield: Yes, 20% tint is legal.
This is why many drivers choose a "two-tone" or "legal" setup: a light, legal ceramic film on the front side windows and a darker 20% film on the rear windows and back glass. This gives you the privacy and dark look you want on the back without breaking the law on the front.
Why Do So Many Cars Have Dark Front Tint?
You will see plenty of vehicles in Toronto with dark front windows. That does not mean it is legal. Enforcement varies, and some drivers simply accept the risk. But the consequences are real:
- A police officer can issue a ticket for non-compliant window tint.
- Your vehicle can fail a safety inspection or a roadside check.
- You may be ordered to remove the film, which damages the window defroster lines and costs money.
- Illegal front tint can also affect insurance claims if visibility is questioned.
The safest choice is to install a film that meets the 70% front-side requirement and save the dark look for the rear.
Ceramic Film vs Dyed Film at 20% VLT
Not all 20% tint is the same. The film type matters as much as the darkness. At Tint by Designs, we install premium ceramic window film rather than cheap dyed film.
- Ceramic film blocks heat and UV without relying on dark dyes, so it performs well even in lighter shades. It will not fade, turn purple, or bubble over time.
- Dyed film achieves its darkness with dye, which can fade and discolour, especially on a car parked in the Toronto sun.
If you want a dark 20% look on the rear, ceramic film gives you that look with far better heat rejection, UV protection, and longevity. Learn more on our automotive window tinting page.
Will 20% Tint Affect Night Driving?
A 20% film on the rear windows does reduce visibility at night, especially when reversing. Most drivers adapt, and modern backup cameras help. If you do a lot of night driving or reversing in tight Toronto parking spots, you might consider 35% on the rear instead for a better balance of privacy and visibility. Our installers can show you sample films in person before you decide.
How to Get a Legal, Dark-Looking Tint in Toronto
The best way to get the look you want without a legal headache is to work with a professional installer who understands Ontario law and uses high-quality film. At Tint by Designs, we:
- Install ceramic film backed by a lifetime warranty on automotive applications.
- Apply a legal front-side film (70% VLT or higher) and a darker rear film of your choice.
- Work by appointment at our North York shop, serving all of Toronto and the GTA.
- Help you choose the right VLT for your vehicle, climate, and driving habits.
You can compare packages and current pricing on our window tinting pricing page.
Get Your Tint Done the Right Way at Tint by Designs
Knowing the law is only half the battle. The other half is having a professional installer who uses premium film, applies it cleanly, and stands behind the work. At Tint by Designs, we install ceramic automotive window tint at our North York shop by appointment only, backed by a lifetime warranty on the film.
Whether you want a legal light ceramic film on your front windows or a dark, private look on the rear, we will help you choose the right VLT for your vehicle and stay within Ontario law. We serve car owners across Toronto, North York, Mississauga, Vaughan, Markham, Scarborough, Richmond Hill, Brampton, and Etobicoke.
Ready to book? Call or text us at 437-331-5379, email tintbydesigns@gmail.com, message us on WhatsApp, or request a free quote online. You can also compare packages and pricing on our window tinting pricing page or learn more about our automotive window tinting services.
