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Tools · Window Tint

Idaho Window Tint Checker (2026)

The legal tint limit for every window position in Idaho (35% on the front sides), checked against your own film's VLT, with the medical exemption and what a ticket costs.

Reviewed by PlainStatute EditorialLast reviewed July 2026Verified against §49-944

Idaho window tint checker

Window tint · Idaho

VLT (visible light transmission) is the share of light the film lets through; a lower number is darker. It is printed on the film packaging or your installation receipt. Leave it blank to just read the limits.

Idaho legal tint limit, window by window
Front side windows
35% VLT min
At least 35% (±3%), with luminous reflectance no more than 35% (±3%).
Back side windows
20% min
At least 20% (±3%) for the side windows behind the driver.
Rear window
35% min
At least 35% (±3%), the same floor as the front side windows.
Windshield
AS-1 / top 6 in
Tinting film may sit only above the AS-1 line; if the glass has no identifiable AS-1 line, film may not go below a line six inches down from the top of the exposed windshield.
Medical exemption
Written verification from a licensed physician that the operator or a passenger must be protected from sunlight or heat for medical reasons lets the windshield run at 70% (±3%) and the other windows at 20% (±3%), with reflectance capped at 35% (±3%). There is no state permit or sticker; the physician verification stands in for the standard limits.
Penalty
A violation of §49-944 is an infraction.
Tint-meter tolerance
±3% built into each transmittance and reflectance figure

Enter your film's VLT above to check it against each Idaho window limit, or read the limits as they stand.

Idaho splits the behind-driver rule: the rear window keeps the 35% (±3%) front standard, but the side windows to the rear of the driver may go as low as 20% (±3%) (§49-944).

Film is sold by its own VLT, but police measure the installed darkness: the film combined with your factory glass, which reads darker than the film alone. These are the Idaho figures stated as information, not a determination about any stop or ticket.

Informational only, not legal advice. Reflectivity limits, color bans, and vehicle-class exceptions can change the answer for a specific car. See the full rules, the exemption steps, and the citations on the Idaho window tint reference, cited to Idaho Code §49-944.

How the Idaho tint rules work

Idaho does something most states do not: it splits the windows behind the driver into two floors. The rear window has to meet the same 35% the front doors do, but the side windows to the rear of the driver may drop to 20%. Everything carries a ±3% tolerance and a 35% reflectance cap, and the windshield only takes film above the AS-1 line (or six inches from the top if there is no line).

This checker applies the Idaho figures to the VLT you enter. It is informational only and not legal advice: reflectivity limits, color bans, and vehicle-class exceptions can change the answer for a specific car. For the full rules, the shades table, and the citations, see the Idaho window tint reference, cited to Idaho Code §49-944.

Window tint checkers for other states

Same tool, each with its own per-window limits.

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