Texas window tint laws (2026): what's actually legal?

The number that matters: VLT

Texas measures tint by Visible Light Transmission (VLT) — the percentage of light that passes through the glass and film together. Lower number = darker tint. A “20% tint” lets 20% of light through. Two things trip people up: the law measures the combined glass-plus-film result (factory glass already blocks a little light), and the legal limits are about light coming through, not how dark it looks from outside.

Window by window

• Windshield: No tint below the AS-1 line (the manufacturer’s mark near the top of the glass), or the top 5 inches if there’s no AS-1 line. Above that line, a visor strip is legal if it isn’t red, amber, or blue.
• Front side windows (driver + passenger): Must allow more than 25% VLT. This is the window that gets people tickets — 20% film on the fronts is illegal in Texas, full stop. A quality ceramic 30–35% film gives real heat rejection while staying legal.
• Back side windows: Any darkness. Limo tint, blackout — all legal behind the driver.
• Rear window: Any darkness, provided the vehicle has working side mirrors on both sides. No mirrors, and the rear window falls under the 25% rule.

Reflectivity and color rules

Tint on the front and back side windows can’t reflect more than 25% of light — mirror-finish and heavily metallized films are illegal even at a legal VLT. And no window on a Texas-registered vehicle may carry red, amber, or blue tint; those colors are reserved for emergency vehicles.

Medical exemptions

Texas allows darker front tint with a signed statement from a licensed physician (or, in some cases, an optometrist) identifying a medical condition that requires it — lupus, photosensitivity disorders, and similar. Keep the documentation in the vehicle; the exemption belongs to the person, not the car.

What happens if your tint is illegal

A tint stop in Texas is typically a Class C misdemeanor: a fine in the tens of dollars the first time, climbing toward $200+ for repeat offenses — plus you’ll usually be ordered to remove the film, which means you paid for the tint, the ticket, the removal, and the re-tint. Cheap illegal tint isn’t a gamble on getting caught once; it’s a recurring tax.

SUVs, trucks, and vans

The 25% front-side rule applies to every passenger vehicle. The factory “privacy glass” on most trucks and SUVs is already roughly 15–26% VLT from the manufacturer, which is why matching the fronts to the rears is illegal even though it “looks factory.”

Staying legal without giving up heat rejection

Darkness and heat rejection are different things. A ceramic 35% on the front windows rejects more infrared heat than a cheap dyed 5%, with none of the legal risk. Pick the VLT for the law, pick the film technology for the Texas sun.