Michigan doesn't set a VLT percentage for the front of the car the way most states do — it bans tint there almost entirely and allows only a narrow top strip. Behind the driver, the rule flips: any darkness is legal on the rear side windows and rear window, but only if the vehicle carries two outside mirrors, one on each side, and reflectance stays under 35%, so mirrored or metallic-look films are out regardless of how dark they read. This comes from MCL 257.709, applied the same statewide.
Michigan rules by window
- Windshield: nontransparent, reflective, or tinted material is banned below the top 4 inches (or below the manufacturer's shade band, whichever is closer to the top).
- Front side windows (driver + front passenger) and sidewings: same rule as the windshield — tint is allowed only on the top 4 inches, with no broader percentage exception below that strip.
- Rear side windows and rear window: any darkness is legal, including nonreflective smoked or tinted glass and perforated screens — but only if the vehicle has two outside rearview mirrors, one on each side, adjusted for a clear view behind the vehicle. Even with mirrors in place, total solar reflectance can't reach 35% or more, which rules out silver or gold mirrored films regardless of VLT.
Medical exemptions Michigan allows a medical exemption under MCL 257.709(3) — the only legal way to get tint below the 4-inch strip on the front windows — based on a letter from a Michigan-licensed physician or optometrist identifying the qualifying condition (photophobia, lupus, and post-cataract light sensitivity are commonly cited examples). The letter has to be kept in the vehicle and presented at a stop.
Enforcement and penalties A violation carries a fine of up to $100 plus court costs and assessments. Many courts will waive the penalty if the tint is removed within 10 days and an officer signs off on the correction.
What this means when you're quoting a job Michigan's front-window rule is the one installers most often get wrong by defaulting to a percentage — there isn't a legal percentage for the front side windows beyond the 4-inch strip, so quoting "35% up front, same as next door in Ohio" puts an illegal window on the car. The 35% reflectance cap in back is the second trap: a customer asking for a mirrored or chrome-look film on the rear glass is asking for something Michigan doesn't allow no matter how the VLT reads. And the "any darkness in back" rule only holds if the vehicle actually has outside mirrors on both sides — worth a quick check before dropping a dark rear-window package on a car that's missing one. A [window tint shop software](/industries/tint) tool that treats Michigan's front windows as strip-only, not percentage-based, catches both before the customer signs.
Frequently asked questions
What is the darkest legal tint in Michigan? The front windshield and front side windows only allow a top strip — 4 inches down, or to the manufacturer's shade band. Behind the driver, any darkness is legal as long as the vehicle has two outside mirrors (one on each side) and reflectance stays under 35%.
Is 35% tint legal on the front windows in Michigan? Not as a full-window film. Michigan doesn't set a VLT percentage for the front side windows below the top 4-inch strip — tint below that line requires a medical exemption.
Can I put mirrored or chrome tint on my rear window in Michigan? No. Michigan caps total solar reflectance at 35% on rear side windows and the rear window, which rules out silver or gold mirrored films regardless of darkness.
How do I get a medical tint exemption in Michigan? A letter from a Michigan-licensed physician or optometrist identifying the qualifying condition, kept in the vehicle and shown at a traffic stop.
What's the fine for illegal tint in Michigan? Up to $100 plus court costs; many courts waive it if the tint is corrected within 10 days and verified by an officer.
This is general information based on Michigan's public statutes and reporting on MCL 257.709, not legal advice — enforcement can vary and laws change over time, so confirm specifics with the Michigan Department of State or a licensed attorney before you install, buy, or contest a citation.
Related
- State-by-state window tint laws (VLT limits) - Michigan shop market + VLT summary - Window tint percentages: what VLT, 5%, 20%, 35% mean - Window tint laws by state: the 2025 reference