Window tint law reference · MO

Missouri Window Tint Laws (2026)

Short answer

In Missouri, front side windows: 35%. Back side windows: Any darkness. Rear window: Any darkness. These limits are for sedans.

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Missouri tint limits at a glance

Front side windows35%
Back side windowsAny darkness
Rear windowAny darkness
WindshieldFactory tint area only
ReflectivityCheck statute
SUVs, vans and trucksSame as cars

Percentages are the minimum visible light transmission with the film installed, including the factory glass. A lower number means darker tint.

Is 5%, 20%, 35% or 50% tint legal in Missouri?

This table shows whether a film with each rating is legal on a sedan in Missouri. Factory glass blocks some light, so a film reads darker once it's installed.

Film ratingFront side windowsBack side windowsRear window
5% Not legalLegalLegal
15% Not legalLegalLegal
20% Not legalLegalLegal
35% Likely too dark once installedLegalLegal
50% LegalLegalLegal
70% LegalLegalLegal

'Likely too dark once installed' means the film rating meets the limit, but on typical factory glass the combined reading usually falls under it. Meter the window to be sure.

Choosing a film that stays legal

Assume factory side glass passes about 80% of light.

  • Front side windows: 45% film or lighter
  • Back side windows: Any film
  • Rear window: Any film

Factory privacy glass on many SUVs already reads well under 30%, so any film added over it will read darker still. Always meter after the install.

Fines and penalties

Missouri's tint law doesn't set a specific fine. Amounts are set by the court where the ticket is issued.

Medical exemptions

The Missouri State Highway Patrol issues a permit (form SHP-524) with a physician's prescription dated within the past year. It lasts as long as you own the vehicle.

The law

Missouri's tint rules are set by RSMo § 307.173.

This page is a reference for drivers and installers, not legal advice. Enforcement can vary by city and county.

Frequently asked questions

How dark can you legally tint your windows in Missouri?

On a sedan, front side windows: 35%. Back side windows: Any darkness. Rear window: Any darkness.

Is 20% tint legal in Missouri?

Front: Not legal. Back: Legal. Rear: Legal. See the 20% film row.

Is 35% tint legal in Missouri?

Front: Likely too dark once installed. Back: Legal. Rear: Legal. See the 35% film row.

Is tint allowed on the windshield in Missouri?

Factory tint area only

Are the rules different for SUVs and trucks in Missouri?

Same as cars

Can I get a medical exemption for window tint in Missouri?

The Missouri State Highway Patrol issues a permit (form SHP-524) with a physician's prescription dated within the past year. It lasts as long as you own the vehicle.

Related

Back to the full chart: Window tint laws by state

Neighboring states:

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