StreetLawful

Idaho Window Tint Law 2026

Idaho requires at least 35% on the front side windows, 20% on the back side windows and 35% on the rear window.

As an Amazon Associate, StreetLawful earns from qualifying purchases. Product listings are matched to statutory requirements as we read them — this is not a guarantee of compliance, and we do not test or measure any film ourselves.

Choose a tint level

35% VLTfront side window
Illustrative rendering of the film’s rated VLT. Not a measurement — apparent darkness varies with glass, lighting and screen. Figures on this page are for all vehicles.

Our pick at 35% VLT

More options that clear this figure, darkest first

  • 35%VLTIAQWEIAQWE 35% VLT Ceramic Car Window Tint Film 20 in x 20 ft Roll | High Heat Rejection, UV Block, Privacy, Shatterproof, Scratch Resistant & No Signal InterferenceCeramic (nano-ceramic, 5-layer)20″ × 20′ rollRated 35% VLT — meets the 35% requirement for front side windows.View on Amazon
  • 35%VLTRockRoseRockRose 35% Nano Ceramic Car Window Tint 36 in x 25FT 2PLY Privacy Film Heat Block, 99% UVR, and 85% IRR Block for Auto or Home Strong Adhesive, Easy Shrink, Plotter Friendly - CharcoalCeramic (2-ply nano-ceramic)36″ × 25′ rollRated 35% VLT — meets the 35% requirement for front side windows.View on Amazon
  • 50%VLTIAQWEIAQWE 50% VLT Ceramic Car Window Tint Film 20 in x 20 ft Roll | High Heat Rejection, UV Block, Privacy, Shatterproof, Scratch Resistant & No Signal InterferenceCeramic (nano-ceramic, 5-layer)20″ × 20′ rollRated 50% VLT — meets the 35% requirement for front side windows.View on Amazon
  • 70%VLTARANAARANA 70% VLT 36"x15FT Ceramic Car Window Tint Film | Keep Car Cool, UV Heat Blocking, Daytime Privacy & Anti-Glare, Scratch Resistant, Phone/GPS Friendly, DIY InstallCeramic (nano-ceramic)36″ × 15′ rollRated 70% VLT — meets the 35% requirement for front side windows.View on Amazon

Showing 4 of the 12 films we list that clear this figure. Verify before you tint. We match a film’s own rating against the figure in the statute above. We do not measure film, and a manufacturer rating is not a compliance certificate.

The limits at a glance

Idaho sets the same limits for passenger cars and for SUVs, vans and trucks, so there is nothing to switch between.

Front side windows
35% VLT minimum
measured on the film itself
Idaho Code §49-944(1)(b)Idaho Statutes · read
Back side windows
20% VLT minimum
measured on the film itself
Idaho Code §49-944(1)(c)Idaho Statutes · read
Rear window
35% VLT minimum
measured on the film itself
Idaho Code §49-944(1)(b)Idaho Statutes · read
Windshield strip — how far down it may extend
AS-1
Idaho Code §49-944(1)(a)Idaho Statutes · read

Film rated to meet the 35% requirement for front side windows

  • This state also caps reflectance for this glass at 35%. Mirrored and metallic films can exceed it regardless of their VLT rating.
    Idaho Code §49-944(1)(b)Idaho Statutes · read

Every Idaho tint rule we track

Every dimension we track for window tint in Idaho, including the ones we have not been able to establish. A row marked unclear means we found no published figure — it does not mean the state permits anything here.
RuleApplies toWhat the law saysSource
Windshield strip — how dark the strip may beAll vehiclesNo numeric VLT for the permitted windshield strip; the film must be nonreflective.
Idaho Code §49-944(1)(a)Idaho Statutes · read
Nonreflective window tinting film or sunscreening devices shall not be applied to the windshield below the AS-1 line
Windshield strip — how far down it may extendAll vehiclesAS-1
Detail

Two-branch rule: the AS-1 line governs where one is identifiable, otherwise a line 6 inches below and parallel to the top of the exposed windshield. Rendering only one branch would misstate the rule for vehicles without an AS-1 marking.

Idaho Code §49-944(1)(a)Idaho Statutes · read
Nonreflective window tinting film or sunscreening devices shall not be applied to the windshield below the AS-1 line; if no AS-1 line is identifiable on the windshield, nonreflective window tinting film or sunscreening devices shall not be applied to the windshield below a line extending six (6) inches below and parallel to the exposed windshield;
Windshield below the stripAll vehiclesunclear No published figure

Under review — this dimension is still under review. This is a gap in our research, and it says nothing about what Idaho requires here; the state may set its rule in words rather than a percentage.

Front side windowsAll vehicles35% VLT minimum
measured on the film itself
Detail

FILM basis: §49-944(1)(e) defines light transmission as light passing through "the product or material", without the "including the glazing" language Arizona and Connecticut use. Tolerance of ±3% is written into the statute.

Idaho Code §49-944(1)(b)Idaho Statutes · read
Nonreflective window tinting film or sunscreening devices that have a light transmission of not less than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%) and a luminous reflectance of no more than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%) may be applied to the front side vents, front side windows to the immediate right and left of the driver, and the rear window;
Back side windowsAll vehicles20% VLT minimum
measured on the film itself
Detail

FILM basis: §49-944(1)(e) defines light transmission as light passing through "the product or material", without the "including the glazing" language Arizona and Connecticut use. Tolerance of ±3% is written into the statute.

Idaho Code §49-944(1)(c)Idaho Statutes · read
Nonreflective window tinting film or sunscreening devices that have a light transmission of not less than twenty percent (20%) with a tolerance limit of plus or minus three percent (3%) and a luminous reflectance of no more than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%) may be applied to the side windows to the rear of the driver;
Rear windowAll vehicles35% VLT minimum
measured on the film itself
Detail

Idaho groups the rear window with the FRONT side windows at 35%, not with the rear side windows at 20% — the opposite of the usual "darker toward the back" pattern. FILM basis: §49-944(1)(e) defines light transmission as light passing through "the product or material", without the "including the glazing" language Arizona and Connecticut use. Tolerance of ±3% is written into the statute.

Idaho Code §49-944(1)(b)Idaho Statutes · read
may be applied to the front side vents, front side windows to the immediate right and left of the driver, and the rear window;
Reflectivity — front side windowsAll vehicles35% reflectance maximum
Idaho Code §49-944(1)(b)Idaho Statutes · read
a luminous reflectance of no more than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%)
Reflectivity — back side windowsAll vehicles35% reflectance maximum
Idaho Code §49-944(1)(c)Idaho Statutes · read
a luminous reflectance of no more than thirty-five percent (35%) with a tolerance limit of plus or minus three percent (3%)
Medical exemptionAll vehiclesRequired
Detail

Idaho's medical route sets its own numbers rather than waiving the limits: 70% ±3% on the front windshield and 20% ±3% on the windows, reflectance ≤35% ±3%. Written physician verification must be carried in the vehicle; no state-issued placard.

Idaho Code §49-944(4)Idaho Statutes · read
Nonreflective window tinting film or sunscreening devices that have a light transmission of not less than seventy percent (70%) plus or minus three percent (3%) for the front windshield and not less than twenty percent (20%) plus or minus three percent (3%) for the windows, with a luminous reflectance of no more than thirty-five percent (35%) plus or minus three percent (3%) in each instance, is permitted for a motor vehicle operated by, or carrying as a passenger, a person who possesses written verification from a licensed physician that the operator or passenger must be protected from exposure to sunlight or heat for medical reasons associated with past or current treatment; such written verification shall be carried in the vehicle.
Certification sticker / labelAll vehiclesunclear No published figure

Under review — the official sources we read state no figure for this. This is a gap in our research, and it says nothing about what Idaho requires here; the state may set its rule in words rather than a percentage.

Not addressed in §49-944; Idaho State Police may promulgate implementing rules under §49-944(3), which Phase 1b should check (IDAPA) before recording a value.

Restricted colorsAll vehiclesunclear No published figure

Under review — the official sources we read state no figure for this. This is a gap in our research, and it says nothing about what Idaho requires here; the state may set its rule in words rather than a percentage.

Not addressed in §49-944, which regulates by transmission and reflectance only.

Side mirrors required if the rear window is tintedAll vehiclesunclear No published figure

Under review — the official sources we read state no figure for this. This is a gap in our research, and it says nothing about what Idaho requires here; the state may set its rule in words rather than a percentage.

Not addressed in §49-944 — Idaho permits rear-side tint at 20% without conditioning it on mirrors.

Film rated to meet the 35% requirement for the rear window

  • This state also caps reflectance for this glass at 35%. Mirrored and metallic films can exceed it regardless of their VLT rating.
    Idaho Code §49-944(1)(c)Idaho Statutes · read

As an Amazon Associate, StreetLawful earns from qualifying purchases. Product listings are matched to statutory requirements as we read them — this is not a guarantee of compliance, and we do not test or measure any film ourselves.

Choose a tint level

35% VLTNo preview for rear glass — the illustration does not show that window.
Illustrative rendering of the film’s rated VLT. Not a measurement — apparent darkness varies with glass, lighting and screen. Figures on this page are for all vehicles.

Our pick at 35% VLT

More options that clear this figure, darkest first

  • 35%VLTIAQWEIAQWE 35% VLT Ceramic Car Window Tint Film 20 in x 20 ft Roll | High Heat Rejection, UV Block, Privacy, Shatterproof, Scratch Resistant & No Signal InterferenceCeramic (nano-ceramic, 5-layer)20″ × 20′ rollRated 35% VLT — meets the 35% requirement for the rear window.View on Amazon
  • 35%VLTRockRoseRockRose 35% Nano Ceramic Car Window Tint 36 in x 25FT 2PLY Privacy Film Heat Block, 99% UVR, and 85% IRR Block for Auto or Home Strong Adhesive, Easy Shrink, Plotter Friendly - CharcoalCeramic (2-ply nano-ceramic)36″ × 25′ rollRated 35% VLT — meets the 35% requirement for the rear window.View on Amazon
  • 50%VLTIAQWEIAQWE 50% VLT Ceramic Car Window Tint Film 20 in x 20 ft Roll | High Heat Rejection, UV Block, Privacy, Shatterproof, Scratch Resistant & No Signal InterferenceCeramic (nano-ceramic, 5-layer)20″ × 20′ rollRated 50% VLT — meets the 35% requirement for the rear window.View on Amazon
  • 70%VLTARANAARANA 70% VLT 36"x15FT Ceramic Car Window Tint Film | Keep Car Cool, UV Heat Blocking, Daytime Privacy & Anti-Glare, Scratch Resistant, Phone/GPS Friendly, DIY InstallCeramic (nano-ceramic)36″ × 15′ rollRated 70% VLT — meets the 35% requirement for the rear window.View on Amazon

Showing 4 of the 12 films we list that clear this figure. Verify before you tint. We match a film’s own rating against the figure in the statute above. We do not measure film, and a manufacturer rating is not a compliance certificate.

Sources

Nearby states

Other Idaho modification laws

Compare all 51 jurisdictions →