Texas Window Tint Laws Explained — What’s Legal in 2026

Understanding VLT: The Measurement That Matters

Before diving into the specific rules, it helps to understand how window tint darkness is measured. The industry standard is Visible Light Transmission, or VLT. This is expressed as a percentage and refers to how much visible light passes through the window. A higher VLT percentage means more light gets through and the tint is lighter. A lower percentage means less light and darker tint.

For example, a window with 70% VLT allows 70% of visible light through, which is very light and barely noticeable. A window with 5% VLT (often called “limo tint”) allows only 5% of light through, making it extremely dark and nearly impossible to see through from outside.

Texas law sets minimum VLT requirements for different windows on your vehicle. Tint that falls below these minimums is considered illegal unless you have a valid medical exemption.

Texas VLT Requirements by Window Position

Windshield

Texas law allows tint only on the top portion of the windshield. Specifically, you can have a tint strip along the top of the windshield, but it must not extend below the AS-1 line (a line marked by the manufacturer on most windshields, typically about 5 inches from the top). Below that line, the windshield must remain clear with no aftermarket tint applied. There is no specific VLT percentage for the windshield strip, but it must not be reflective.

Front Side Windows

This is where most drivers run into trouble. Texas requires front side windows (the driver and passenger windows) to have a minimum of 25% VLT. This means at least 25% of visible light must pass through. In practical terms, 25% VLT is a moderate tint that you can still see through from outside, especially in daylight.

The 25% front side window rule is the most commonly enforced tint regulation in Texas and the most common reason drivers seek medical exemptions. Many drivers prefer darker tint on these windows for comfort, privacy, and sun protection, which is where the medical exemption under Transportation Code §547.613 becomes relevant.

Rear Side Windows

Texas law has no VLT restriction on rear side windows for passenger vehicles. You can have any darkness level on the rear side windows, including 5% limo tint, without needing any exemption. This applies to sedans, coupes, hatchbacks, SUVs, and trucks.

Rear Window

Similar to rear side windows, there is no VLT restriction on the rear window for passenger vehicles. You can tint the rear window as dark as you like. However, if you do tint the rear window to a point where visibility is significantly reduced, Texas law requires that your vehicle have side mirrors on both sides (which virtually all modern vehicles do).

Reflectivity Rules

In addition to VLT requirements, Texas law restricts reflective or mirrored tint. Front side windows must not have tint that is more than 25% reflective. Rear windows also must not exceed 25% reflectivity. Highly reflective “mirror” tint is illegal on all windows regardless of how much light it transmits.

The 25% Front Side Window Rule in Practice

The 25% VLT threshold for front side windows is the regulation that affects most Texas drivers. Here is what this looks like in real terms:

• Factory tint on most vehicles is around 70-80% VLT, which is very light.
• 25% VLT is a medium tint. From outside on a sunny day, you can usually see the driver. At night or in shadows, visibility into the vehicle is reduced.
• 20% VLT is slightly darker than the legal limit and is one of the most popular aftermarket tint levels. It is technically illegal on front side windows without an exemption.
• 5% VLT (limo tint) is very dark. On front side windows, this is significantly below the legal threshold and would almost certainly result in a citation without a medical exemption.

Many tint shops will install darker tint on front side windows if you request it, but they may warn you about the legal risk. Having a medical exemption eliminates that risk entirely.

Penalties for Illegal Window Tint in Texas

Driving with illegal window tint in Texas is a Class C misdemeanor. Here is what that means in practice:

• Fine up to $200 for the first offense. Many jurisdictions issue fines in the $100-200 range.
• No jail time. A Class C misdemeanor is the lowest level of criminal offense in Texas, equivalent to a traffic ticket.
• The ticket goes on your record as a traffic violation.
• Repeat offenses can result in additional fines. Some officers may also require you to remove the tint and provide proof before dismissing the case.

Beyond the fine itself, illegal tint can lead to other complications. It gives law enforcement probable cause to initiate a traffic stop, which can lead to additional scrutiny. It can also cause your vehicle to fail the annual Texas state inspection, preventing you from renewing your registration.

How Inspection Stations Check Tint

During the annual Texas vehicle inspection, the inspector visually checks your window tint. If the front side windows appear to be below 25% VLT, the inspector may use a tint meter (a handheld device that measures light transmission) to get an exact reading.

If the tint on your front side windows measures below 25% VLT, your vehicle will fail the inspection. You will not be able to renew your registration until the tint is removed or you present a valid medical exemption. More on this in our article about window tint and Texas vehicle inspections.

How the Medical Exemption Works

Texas Transportation Code §547.613 provides a legal path for drivers who need darker tint for medical reasons. If a licensed medical provider determines that you have a condition requiring protection from direct sunlight, they can issue a signed statement authorizing darker tint on your front side windows.

With a valid medical exemption:

• You can legally have darker tint on your front side windows below the 25% VLT threshold.
• You have a defense against tint tickets.
• Your vehicle can pass state inspection with the darker tint.
• Law enforcement can verify your exemption during a traffic stop.

The exemption does not give you a blanket pass to have any tint you want. It specifically addresses the medical need for sun protection and covers the front side windows where standard tint law is most restrictive.

Tint Laws for Commercial Vehicles and Trucks

The tint rules described above apply to passenger vehicles. Commercial vehicles may have different requirements depending on their classification. However, for pickup trucks, SUVs, and standard passenger vehicles that most Texas drivers operate, the rules are the same: 25% VLT minimum on front side windows, no restriction on rear windows.

What About Out-of-State Vehicles?

If you are driving in Texas with an out-of-state registered vehicle, Texas tint laws still apply to you while you are in the state. Some states have more lenient tint laws than Texas (for example, some states allow 20% or even 15% VLT on front side windows). If your tint is legal in your home state but darker than what Texas allows, you could receive a citation in Texas.

Similarly, if you have a Texas medical exemption, it applies specifically in Texas. Other states may or may not honor it. If you frequently drive across state lines, check the tint laws in those states as well.

Stay Legal with a Medical Exemption

If you want darker tint on your front side windows in Texas, the legal path is a medical exemption under Transportation Code §547.613. TintPassRx connects you with licensed Texas medical providers who can evaluate your condition and, if appropriate, provide the signed statement you need. The process is entirely online, takes just minutes, and costs a one-time fee of $199. If you are not approved, you get a full refund.