Texas Window Tint Laws (2026): Legal VLT Limits

Texas law requires front side windows to allow at least 25% of visible light through (25% VLT minimum). Side windows behind the driver may be tinted to any darkness, and the rear window may be any darkness if the vehicle has an outside mirror on each side, giving most drivers considerable flexibility behind the driver's seat.

What is the legal tint limit in Texas?

Texas sets a 25% VLT minimum for front side windows, meaning the film and glass combined must allow at least 25% of visible light to pass through. A higher VLT percentage is lighter; a lower percentage is darker. So 25% is the darkest shade legally permitted on your front windows, and 70% (nearly clear) would be much lighter.

Back side windows (the windows behind the driver on sedans, SUVs, vans, and trucks) may be tinted to any darkness under Texas law, with no further condition attached. The rear window may also be any darkness, but only if the vehicle has an outside mirror on each side that reflects to the driver a view of the highway for at least 200 feet behind the vehicle.

Without those two mirrors, the rear window has no darkness allowance at all. Section 547.613(b) sets no VLT floor for the rear glass, so aftermarket film that reduces light transmission there is an offense under Section 547.613(a)(2) at any shade, not permitted down to 25%. Factory-tinted or pretinted glass installed by the vehicle manufacturer is separately exempt under Section 547.613(b)(13).

The dual-mirror rule ensures the driver can always see rearward, even when the rear glass is blacked out. If you plan on very dark rear tint, confirm your vehicle has functional outside mirrors on both sides.

Texas also caps reflectance at 25% on the windshield and front side windows; a film that bounces back more than 25% of light is not legal there. Beyond reflectivity, Texas bans red, blue, and amber tint colors on the windshield. Windows to the rear of the driver, the back side windows and the rear window, are exempt from the reflectance cap and color ban entirely under Transportation Code Sec. 547.613.

Windshield tint rules in Texas

The windshield receives the most restrictive treatment under Texas Transportation Code Section 547.613. Aftermarket tint on the main windshield is limited to a non-reflective strip at the top of the glass.

Section 547.613(b)(1)(D) allows that strip only where it does not extend downward beyond the AS-1 line or more than five inches from the top of the windshield, whichever is closer to the top of the windshield. The statute picks the more restrictive of the two boundaries, not the lower one. So if the AS-1 line on your vehicle sits more than five inches down from the top, the five-inch mark controls; if the AS-1 line is higher than five inches from the top, the AS-1 line controls.

There is one notable exception: clear UV-filtering film that does not reduce visible light transmission may be applied to the entire windshield. These films are designed to block ultraviolet radiation without visibly darkening the glass, and they are fully legal in Texas as long as they do not alter the appearance of the glass or reduce VLT.

The 25% reflectance cap and the ban on red, blue, and amber colors apply to the windshield's non-reflective strip. A dark or colored band across the top of your windshield would not meet these requirements.

Medical exemptions

Texas does not issue a window tint medical exemption permit. What Section 547.613(e) creates is an affirmative defense to prosecution: it is a defense to a charge under Subsection (a) that the defendant, or a passenger in the vehicle at the time of the violation, is required for a medical reason to be shielded from direct rays of the sun. Qualifying conditions typically involve photosensitivity, lupus, or similar conditions a physician can document.

That distinction matters in practice. The statute prescribes no application, no state form, no physician certificate, no approval process, and no darker VLT figure that gets approved in advance. The defense is raised in response to a citation, in the case itself; it is not a pre-cleared exemption you hold before a stop.

Because the defense turns on a medical requirement, documentation from a treating physician describing the condition and the need to be shielded from sunlight is the practical way to support it. Carrying that letter in the vehicle is sensible and an officer may take it into account, but Texas law does not require you to carry it, and an officer is not obliged to drop a citation because you have one.

The older Department of Public Safety medical exemption paperwork ran through the vehicle safety inspection program, which ended for non-commercial vehicles on January 1, 2025. Do not expect an inspection station or a county tax office to issue a tint exemption today.

How tint is measured and certified

Texas uses a VLT meter (sometimes called a tintometer or photometer) to measure the combined light transmission through the glass and film together. The meter is placed on the window edge and reads the percentage of light passing through. Both the film itself and the factory glass tint count toward the total, so a car with factory-tinted glass may have very little room for additional aftermarket film before hitting the 25% floor.

Texas law requires a compliance label on a sunscreening device, permanently installed between the film and the surface it is applied to under Section 547.609(4). The statute does not designate a particular window for it: Section 547.613(a-1)(2) refers to the label going on the windshield or side or rear window of the vehicle, as applicable, meaning whichever glass was tinted.

The label must be legible, must carry the light transmission and luminous reflectance information the Department of Public Safety requires, and, on a windshield or a side or rear window, must state that the device's light transmission is consistent with Section 547.613(b)(1) or (2), as applicable. Applying the label is the installer's legal obligation, not the driver's: a business that tints a window without installing a complying label commits a misdemeanor punishable by a fine of up to $1,000 under Section 547.613(a-1).

When choosing a tinter, ask for the manufacturer's certificate of compliance showing the film's VLT rating and reflectance. Keep that document in the vehicle along with any medical paperwork. A reputable installer will apply the label automatically and provide you with the certificate.

Section 547.613(d) lets DPS treat a front side window as compliant if its light transmission or luminous reflectance varies by no more than three percent from the standard. That is a narrow allowance rather than a general enforcement tolerance, so installers should still target a margin above the 25% minimum to account for normal variation.

Penalties for illegal tint in Texas

Texas ended its Vehicle Safety Inspection Program for non-commercial vehicles on January 1, 2025 (House Bill 3297, 88th Legislature). Non-commercial vehicles no longer need a safety inspection before registration; owners instead pay a $7.50 inspection program replacement fee at registration. Commercial vehicles are still inspected. For an ordinary driver, illegal tint is no longer caught at an annual inspection; it is enforced through roadside stops and citations.

An officer who observes or measures illegal tint during a stop can issue a citation. A tint violation under Section 547.613(a) is a misdemeanor, and because that section sets no penalty of its own for the driver, the general penalty in Transportation Code Section 542.401 controls: a fine of not less than $1 or more than $200, assessed by the court. DPS sets the standards a sunscreening device must meet (Sections 547.001(9) and 547.613(c) and (d)); it does not set fine amounts.

The one fixed dollar figure in the tint statute itself falls on the trade. An installer who applies tint without the required compliance label faces a fine of up to $1,000 under Section 547.613(a-1). If you are cited as a driver, you will typically also need to remove the offending film and provide proof of correction to resolve the ticket.

Repeat violations or failure to correct the problem can lead to escalating consequences. The simplest path forward is to remove and replace non-compliant film before a stop occurs.

If you want to tint your windows in Texas

Start with the legal numbers: 25% VLT minimum on front side windows, any darkness on side windows behind the driver, any darkness on the rear window if the vehicle has an outside mirror on each side, 25% maximum reflectance on the windshield strip and front side windows, and no red, blue, or amber film on the windshield (windows behind the driver are exempt from the reflectance and color rules under Transp. Code 547.613(b)). If your vehicle already has factory-tinted glass, measure or ask the dealer for the factory VLT before adding aftermarket film. Many factory glass panels transmit 70-80%, leaving room for a 35% or 50% aftermarket film while staying legal.

Choose a licensed installer who is familiar with Texas requirements. Ask them to install the required compliance label between the film and the glass on each window they tint, stating that the film's light transmission is consistent with Section 547.613(b)(1) or (2), and ask for a written manufacturer's certificate showing the film's VLT and reflectance specs. Keep both in your vehicle.

If you have a qualifying medical condition, ask your physician for documentation of the need to be shielded from direct sunlight before installation, and carry it. It is not a permit, but it is what supports the affirmative defense under Section 547.613(e) if you are cited.

Finally, confirm your vehicle has an outside mirror on each side before blacking out the rear window entirely. Without those mirrors, aftermarket film on the rear glass is not legal at any darkness.

This article is general legal information, not legal advice. Window tint limits vary by state and change, and enforcement depends on local practice and your specific vehicle. For a definitive answer, check your state DMV or consult a local attorney.

Texas drivers may also want to review Texas Windshield Mounting Restrictions for related vehicle glass regulations.

More Texas Laws

• Texas Car Accident Laws