Wisconsin Window Tint Laws
Wisconsin's 50/35/35 split favors visibility up front — sensible for deer-country night driving. Quality film also helps with the freeze-thaw cycles that destroy bargain installs.
Reviewed July 2026 · Passenger cars (sedans)
Legal tint limits in Wisconsin
| Glass | Rule for passenger cars |
|---|---|
| Windshield | No tint below the AS-1 line. |
| Front side windows | 50% VLT or lighter |
| Back side windows | 35% VLT or lighter |
| Rear window | 35% VLT or lighter |
| Medical exemption | Available with qualifying documentation |
What VLT means (and how police check it)
VLT — Visible Light Transmission — is the percentage of outside light that makes it through your glass. The number printed in the law is a floor: film may be that bright or brighter. Because factory glass already blocks a little light, an officer's meter reads the combineddarkness of glass plus film. A film sold as "50%" on top of factory glass can meter a few points darker — which is why professional installers measure the final result, not the box label.
Quality matters as much as darkness. Dyed films fade purple and bubble; ceramic films like ULTRASHIELD SHADOW reject heat and up to 99% of UV at any legal darkness, with no signal interference — so you get the comfort without gambling on the number.
Wisconsin tint FAQ
What is the darkest legal tint in Wisconsin?+
Can I tint my windshield in Wisconsin?+
Does Wisconsin allow medical exemptions for darker tint?+
Is ceramic tint legal in Wisconsin?+
ULTRASHIELD installers in Wisconsin
Certified shops that install to your state's exact legal limit and register your warranty with CARFAX.
This page summarizes Wisconsin statute as published and was last reviewed July 2026. It is not legal advice. Laws change and local enforcement varies — confirm current rules with the Wisconsin DMV before tinting.
Local answers for Wisconsin drivers
Other states