WI
Wisconsin Window Tint Laws (2026)
In Wisconsin, front side windows must let in at least 50% of light; back side windows 35% VLT or lighter and the rear window 35% VLT or lighter. Windshield: non-reflective strip above the AS-1 line only.
Reviewed September 14, 2026 against the sources listed below.
Sedans
| Windshield | Non-reflective strip above the AS-1 line only |
|---|---|
| Front side windows | 50% vlt or lighter |
| Back side windows | 35% vlt or lighter |
| Rear window | 35% vlt or lighter |
SUVs, trucks and vans
| Windshield | Non-reflective strip above the AS-1 line only |
|---|---|
| Front side windows | 50% vlt or lighter |
| Back side windows | 35% vlt or lighter |
| Rear window | 35% vlt or lighter |
Other rules
- Reflectivity, front side
- Not specified
- Reflectivity, back side
- Not specified
- Banned colors
- None named in the statute
- Medical exemption
- Yes. On a treating physician's written recommendation the front side windows may go to 35%; the statement stays in the vehicle and the film comes off when the vehicle is sold.
- Certification sticker
- Not required
- Side mirrors if the rear is tinted
- Both required
- Penalty
- Forfeiture (fine) set by the court.
- Notes
- 3% tolerance. Reflective film is banned. Outside mirrors on both sides are required once the rear window drops below 60%.
Window tint shops in Wisconsin
Milwaukee
2 shops
Elm Grove
1 shop
Madison
1 shop
Oconomowoc
1 shop
Sun Prairie
1 shop
Waukesha
1 shop
West Allis
1 shop
Questions
What is the darkest legal tint in Wisconsin?
50% on front side windows, 35% on back side windows and 35% on the rear window, for sedans.
Is 20% tint legal in Wisconsin?
No. Wisconsin does not allow 20% tint on any window. Front side windows need 50% or lighter.
Is 35% tint legal in Wisconsin?
Only on back side windows and the rear window. Front side windows need 50% or lighter.
Does Wisconsin allow a medical exemption for window tint?
Yes. On a treating physician's written recommendation the front side windows may go to 35%; the statement stays in the vehicle and the film comes off when the vehicle is sold.