Will your tint
pass a WoF?
Tint passes when the front side windows still let 35% of the light through, glass and film together. That last part is where most failures come from.
The three numbers
35% · front side windows
Minimum overall light once film is on, on every class of vehicle.
The law in full →70% · windscreen
Only an anti-glare band along the top is permitted.
The law in full →Behind the driver
35% on an ordinary car. Any shade on a ute, van or genuine off-road 4WD.
Check your class →Why a "35% film" can still fail
The law measures the window, not the film. Most factory glass is not clear: a car that measures 75% before any film cannot take the same shade as one measuring 88% and stay legal.
So the order matters. Your branch puts a meter on the glass first and recommends the shade second, and the number you end up with is the number on the car.
Not every SUV can go dark at the back
Going darker behind the driver depends on the class on your registration, not on how the vehicle looks. A two-wheel-drive crossover that looks like an SUV is usually class MA, which means 35% at the back as well.
Tint and WoF questions
Will window tint fail a WoF?
It can. Non-compliant front tint can fail a warrant of fitness: the front side windows must keep at least 35% overall light, and the windscreen 70%.
Is 35% film legal on the front windows?
Not always. The limit counts the glass and the film together, and most factory glass is already slightly tinted. A film that is legal on one car can put another under the limit, which is why the glass is measured first.
Can the back windows be darker?
On a ute, van or a genuine off-road 4WD, yes: any shade behind the driver. An ordinary car (class MA) keeps 35% at the back too. A vehicle with film on a rear window needs an external mirror on both sides.
Can I tint the windscreen?
Only an anti-glare band along the top is permitted. The rest of the windscreen must keep 70%.
My car already has dark film. What now?
A branch can measure it. If the front is under the limit the film has to come off, and a compliant shade can go on in its place.
Is there any tolerance?
A tolerance of ±5% is allowed for variation between films and light meters.