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Wis. Stat. § 347.43 · checked 2026-10-01 against statute summaries

Wisconsin window tint laws

In Wisconsin, front side windows must allow 50% of light through, back side windows 35%, and the rear window 35%. Non-reflective tint allowed above the AS-1 line (if no AS-1 line is marked, no windshield tint is permitted)

WindowWisconsin rule
WindshieldNon-reflective tint allowed above the AS-1 line (if no AS-1 line is marked, no windshield tint is permitted)
Front side windows50% VLT minimum
Back side windows35% VLT minimum
Rear window35% VLT minimum
ReflectivityNo metallic or reflective tinting film is allowed on any window
Banned colorsNone listed
Medical exemptionYes
StatuteWis. Stat. § 347.43

What installers in Wisconsin will tell you

SUVs and vans may use any darkness on back side and rear windows (sedans are limited to 35%). Vehicles with rear-window tint darker than 60% VLT must have both side mirrors in good working order; a roughly 3% measurement tolerance is allowed.

Frequently asked questions

What is the darkest legal tint on front windows in Wisconsin?

Front side windows must let at least 50% of light through in Wisconsin. Film plus factory glass count together.

Can I use 5% tint in Wisconsin?

No on front side windows. Rear windows are limited to 35% VLT minimum and back side windows to 35% VLT minimum.

Does Wisconsin allow a medical exemption for darker tint?

Yes. Wisconsin allows darker tint with a qualifying medical condition; you typically need a physician's statement kept in the vehicle.

Can I tint the windshield in Wisconsin?

Non-reflective tint allowed above the AS-1 line (if no AS-1 line is marked, no windshield tint is permitted)

Sources

Reference only, not legal advice. Statutes change; confirm with the Wisconsin statute above before you install.