Window Tint Laws in ACT (2026): Legal VLT Limits

These rules apply to a normal registered passenger vehicle in the Australian Capital Territory. The key thing to understand is that the front of the car has to stay clearer than the back. That is deliberate. Police and other drivers need to be able to see the driver and front passenger, so the law keeps those windows lighter.

Behind the driver the rules relax. Rear side windows and the rear windscreen can carry a darker film, which is why so many cars look dark at the back and lighter up front.

The driver and front passenger side windows must have a light transmittance of at least 35% VLT. That means at least 35% of visible light has to pass through the glass and film together.

If you want the darkest legal look up front, tell your installer you need the finished reading to sit right on the 35% line, not the film's raw rating. Any of the 26 window tinting businesses listed in our ACT directory should be able to meter the glass for you.

Windows behind the driver get more freedom. The rear passenger side windows and the rear windscreen both have a minimum of 20% VLT. That is noticeably darker than what you are allowed up front.

This is the standard arrangement across most of Australia now. A common setup is 35% on the front two windows to stay legal, then 20% on everything behind the driver for more privacy and heat control.

You cannot apply tint film across the main windscreen. What is allowed is a strip along the very top, above the wiper-swept area. This top band has no minimum light transmittance requirement, so it can be quite dark, but it is limited to the upper portion of the windscreen.

On reflectivity, tint must not act like a mirror. The maximum reflectance is 10%.

The ACT historically allowed lighter tint than other states before aligning to the current 35% front and 20% rear national standard, a change publicised around 2018. If you bought a used car with older, darker tint that predates the change, or a car from interstate, have the glass metered to check it still meets the current ACT rules.

The figures in this guide are drawn from Access Canberra, the ACT Government authority responsible for vehicle standards and enforcement in the territory. You can read their guidance on the Access Canberra website under vehicle windscreen and window tinting.

When you book an installer, ask them to meter each window after fitting and to give you a written record of the readings. That protects you if your tint is ever questioned at a roadside check.