Texas requires window film to let at least 25% of light through on the front side windows, with any darkness allowed on the back side windows and rear window as long as the vehicle has outside mirrors on both sides. Reflectance on tinted windows is capped at 25%, and non-reflective tint is allowed only above the windshield's AS-1 line. This is set by Texas Transportation Code Sec. 547.613, not county rule, so it's the same statewide.
Texas VLT limits by window
- Front side windows (driver + front passenger): must allow more than 25% VLT — 25% exactly does not clear a roadside meter reading, so shops should quote a film that reads comfortably above the line, not right at it.
- Back side windows and rear window: any darkness is legal, but only if the vehicle has outside mirrors on both sides. Without dual mirrors, the rear window must meet the same 25% VLT floor as the front.
- Reflectance: capped at 25% on front side windows.
- Windshield: non-reflective tint only, and only above the vehicle's AS-1 line — or the top 5 inches of the glass if there's no AS-1 line. The strip can't be red, blue, or amber, and can't exceed 25% reflectance either.
Medical exemptions
Texas allows a medical-necessity exemption for a driver or regular passenger with a condition that makes them sensitive to sunlight — photophobia, lupus, and post-cataract light sensitivity are common qualifying conditions. A licensed physician, optometrist, or ophthalmologist has to certify the condition in writing, and that certification has to stay in the vehicle. The exemption generally extends to side and rear windows; it typically does not open up the windshield rule.
Enforcement and penalties
Illegal tint in Texas is a traffic citation, not a criminal charge. Officers use a handheld photometer at a stop to read VLT on the spot. First-offense fines are commonly in the $20-$200 range before court costs, and many counties treat it as a fix-it ticket — proof of correction (removing or replacing the film) can get the fine dismissed.
What this means when you're quoting a job
The 25% floor plus the dual-mirror caveat on the back window is the kind of detail that's easy for a front-desk employee to get wrong on a truck or van missing a passenger-side mirror. Quoting "any darkness on the back" without checking mirrors is how a shop installs a technically illegal rear window on a customer's vehicle. A window tint shop software tool with a Texas-specific compliance check at quote time catches that before the film goes on, not after a customer gets a ticket.
Frequently asked questions
What is the darkest legal tint in Texas? Front side windows must let more than 25% of light through. Back side windows and the rear window can be any darkness if the vehicle has outside mirrors on both sides.
Is 5% tint legal in Texas? Not on the front side windows — 5% is well under the 25% VLT floor. It's legal on the back side windows and rear window only if the vehicle has dual outside mirrors.
Do I need a sticker or certificate for legal tint in Texas? No general certificate is required for tint at or above the legal VLT. A medical exemption does require a physician's written certification kept in the vehicle.
Can I get a ticket for tint that was installed by a shop? Yes. The citation goes to the driver at the time of the stop regardless of who installed the film — that's why quoting a legal shade at the point of sale matters more than trusting a shop's default menu.
Does Texas require dual mirrors for dark rear tint? Yes. Without outside mirrors on both sides of the vehicle, the rear window is held to the same 25% VLT minimum as the front side windows.
This is general information based on Texas's public statutes and reporting on Transportation Code Sec. 547.613, not legal advice — enforcement can vary by jurisdiction and laws change over time, so confirm specifics with the Texas DPS or a licensed attorney before you install, buy, or contest a citation.
Related
- State-by-state window tint laws (VLT limits) - Texas shop market + VLT summary - Window tint percentages: what VLT, 5%, 20%, 35% mean - North Carolina window tint law changes for 2026 - Georgia window tint law changes: what's new for 2026