Illinois Window Tint Law 2026
Illinois requires at least 35% on the front side windows. We have not established a published figure for the back side windows and rear window, and this page marks that as a gap rather than implying no limit applies.
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
Our pick at 50% VLT
- 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 50% requirement for front side windows.View on Amazon
Our pick at 70% VLT
- 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 50% requirement for front side windows.View on Amazon
More options that clear this figure, darkest first
- 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 50% requirement for front side windows.View on Amazon
- 50%VLTRockRoseRockRose 50% Premium Carbon Car Window Tint Film 40 in x 100FT 2PLY Charcoal Privacy Film UV, Heat Blocking Tint for Car or Home Adhesive Film Easy Shrink, Plotter Friendly Pro GradeCarbon (2-ply PET)40″ × 100′ rollRated 50% VLT — meets the 50% requirement for front side windows.View on Amazon
- 50%VLTTOYOCOTOYOCO Ceramic Car Window Tint Film, 50% VLT, 36" x 25FT Window Privacy Film, No Signal Interference, 99% UV Protection & Scratch-Resistant for Side & Rear Windows, DIY InstallCeramic (2-ply)36″ × 25′ rollRated 50% VLT — meets the 50% 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 50% requirement for front side windows.View on Amazon
Showing 4 of the 8 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
Illinois sets the same limits for passenger cars and for SUVs, vans and trucks, so there is nothing to switch between.
Film rated to meet the 50% requirement for front side windows
- 35% VLT minimum — measured on the film itself Only where no window to the rear of the driver’s seat is treated below 35% light transmittance. A 5% enforcement variance applies.625 ILCS 5/12-503(a-5)(2) — Illinois Compiled Statutes · read
- 50% VLT minimum — measured on the film itself Where no window to the rear of the driver’s seat is treated below 30% light transmittance. A 5% enforcement variance applies.625 ILCS 5/12-503(a-5)(1) — Illinois Compiled Statutes · read
- 50% VLT minimum — measured on the film itself Where the windows to the rear of the driver’s seat carry factory-installed nonreflective smoked or tinted glass. A 5% enforcement variance applies.625 ILCS 5/12-503(a-5)(4) — Illinois Compiled Statutes · read
Every Illinois tint rule we track
| Rule | Applies to | What the law says | Source |
|---|---|---|---|
| Windshield strip — how dark the strip may be | All vehicles | No numeric VLT for the permitted 6-inch strip; the film must be nonreflective. | 625 ILCS 5/12-503(a) — Illinois Compiled Statutes · read “a nonreflective tinted film may be used along the uppermost portion of the windshield” |
| Windshield strip — how far down it may extend | All vehicles | 6 inDetailMeasured DOWN FROM THE TOP of the windshield — a third and distinct form from the AS-1 line (Idaho, Kansas) and the 29-inch seat clearance (California, Arizona, Connecticut). All three appear in this dataset; none is interchangeable. | 625 ILCS 5/12-503(a) — Illinois Compiled Statutes · read “except that a nonreflective tinted film may be used along the uppermost portion of the windshield if such material does not extend more than 6 inches down from the top of the windshield” |
| Windshield below the strip | All vehicles | unclear No published figure Under review — this dimension is still under review. This is a gap in our research, and it says nothing about what Illinois requires here; the state may set its rule in words rather than a percentage. | — |
| Front side windows | All vehicles | 35% VLT minimum measured on the film itself Only where no window to the rear of the driver’s seat is treated below 35% light transmittance. A 5% enforcement variance applies. DetailThis is the more permissive of two alternative front-side tiers, and it is available only if the rear glass stays at 35% or lighter. Attributed to the FILM: the statute regulates "a nonreflective tinted film that allows at least N% light transmittance". Note the same clause contemplates a law enforcement officer METERING the installed window with a 5% variance, so field measurement is of the assembly even though the standard is written against the film. | 625 ILCS 5/12-503(a-5)(2) — Illinois Compiled Statutes · read “On vehicles where none of the windows to the rear of the driver's seat are treated in a manner that allows less than 35% light transmittance, a nonreflective tinted film that allows at least 35% light transmittance, with a 5% variance observed by any law enforcement official metering the light transmittance, may be used on the vehicle windows immediately adjacent to each side of the driver.” |
| All vehicles | 50% VLT minimum measured on the film itself Where no window to the rear of the driver’s seat is treated below 30% light transmittance. A 5% enforcement variance applies. DetailDarker rear glass forces LIGHTER front glass: tint the rear between 30% and 35% and the front-side floor rises from 35% to 50%. Two rows are carried because the statute states two alternatives, not one rule with an exception. Attributed to the FILM: the statute regulates "a nonreflective tinted film that allows at least N% light transmittance". Note the same clause contemplates a law enforcement officer METERING the installed window with a 5% variance, so field measurement is of the assembly even though the standard is written against the film. | 625 ILCS 5/12-503(a-5)(1) — Illinois Compiled Statutes · read “On vehicles where none of the windows to the rear of the driver's seat are treated in a manner that allows less than 30% light transmittance, a nonreflective tinted film that allows at least 50% light transmittance, with a 5% variance observed by any law enforcement official metering the light transmittance, may be used on the vehicle windows immediately adjacent to each side of the driver.” | |
| All vehicles | 50% VLT minimum measured on the film itself Where the windows to the rear of the driver’s seat carry factory-installed nonreflective smoked or tinted glass. A 5% enforcement variance applies. DetailThe factory-privacy-glass branch. Distinguished from (a-5)(1) by its trigger, not its number. | 625 ILCS 5/12-503(a-5)(4) — Illinois Compiled Statutes · read “On vehicles where a nonreflective smoked or tinted glass that was originally installed by the manufacturer on the windows to the rear of the driver's seat, a nonreflective tint that allows at least 50% light transmittance, with a 5% variance observed by a law enforcement official metering the light transmittance, may be used on the vehicle windows immediately adjacent to each side of the driver.” | |
| Back side windows | All vehicles | confirmed No VLT limit stated for windows to the rear of the driver’s seat. Section 12-503 permits a perforated window screen or other decorative application there, and the 30%/35% figures elsewhere in the section operate as conditions on the FRONT-side allowance, not as rear limits.DetailAffirmative absence after reading the whole section: no subsection of 12-503 imposes a transmittance floor on the rear glass. Publishing "Illinois rear = 35%" converts a qualifying condition into a limit — a defect this dataset exists to avoid. Note (b)'s decorative-screen permission is itself conditioned on the front side windows being untreated. | 625 ILCS 5/12-503(b) — Illinois Compiled Statutes · read “On motor vehicles where window treatment has not been applied to the windows immediately adjacent to each side of the driver, the use of a perforated window screen or other decorative window application on windows to the rear of the driver's seat shall be allowed.” |
| Rear window | All vehicles | confirmed No VLT limit stated for the rear window. Any vehicle with treated glass to the rear of the driver’s seat must, however, carry a compliant side mirror on each side. | 625 ILCS 5/12-503(b-5) — Illinois Compiled Statutes · read “Any motor vehicle with a window to the rear of the driver's seat treated in this manner shall be equipped with a side mirror on each side of the motor vehicle which are in conformance with Section 12-502.” |
| Reflectivity — front side windows | All vehicles | No numeric reflectance cap. The statute requires the film be "nonreflective" and separately bans "reflective material" on the front windshield.DetailProse standard, no percentage. Do not surface a number. | 625 ILCS 5/12-503(a), (a-5) — Illinois Compiled Statutes · read “No person shall drive a motor vehicle with any sign, poster, window application, reflective material, nonreflective material, or tinted film upon the front windshield” |
| Reflectivity — back side windows | All vehicles | No numeric reflectance cap for windows to the rear of the driver; the decorative-application permission at (b) carries no reflectance figure. | 625 ILCS 5/12-503(b) — Illinois Compiled Statutes · read “the use of a perforated window screen or other decorative window application on windows to the rear of the driver's seat shall be allowed” |
| Medical exemption | All vehicles | RequiredDetailIllinois ties the exemption to DISTINCTIVE LICENSE PLATES or plate stickers issued under 625 ILCS 5/3-412(k) — not to a carried letter. The statute names qualifying conditions non-exhaustively (lupus, DSAP, post-TBI light sensitivity, albinism) and extends to a household member transported in the vehicle. Installers must obtain a copy of the physician statement before installing under (a-10)(2). | 625 ILCS 5/12-503(g) — Illinois Compiled Statutes · read “Subsections (a) and (a-5) of this Section shall not apply to window treatment, including, but not limited to, a window application, nonreflective material, or tinted film, applied or affixed to a motor vehicle for which distinctive license plates or license plate stickers have been issued pursuant to subsection (k) of Section 3-412 of this Code, and which: (1) is owned and operated by a person afflicted with or suffering from a medical disease, including, but not limited to, systemic or discoid lupus erythematosus, disseminated superficial actinic porokeratosis, light sensitivity as a result of a traumatic brain injury, or albinism, which would require that person to be shielded from the direct rays of the sun” |
| Certification sticker / label | All vehicles | unclear 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 Illinois requires here; the state may set its rule in words rather than a percentage. Not addressed in 625 ILCS 5/12-503 as a compliance label. The only stickers the section references are the distinctive plate stickers of the medical exemption. Phase 1b should confirm against Illinois administrative rules before recording a value. | — |
| Restricted colors | All vehicles | unclear 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 Illinois requires here; the state may set its rule in words rather than a percentage. Not addressed in 12-503, which regulates by reflectivity and transmittance rather than by colour. | — |
| Side mirrors required if the rear window is tinted | All vehicles | Required Triggered whenever a window to the rear of the driver’s seat is treated. DetailUnlike the mirror rules in California and Arizona, this is a freestanding duty rather than the condition for an exemption. | 625 ILCS 5/12-503(b-5) — Illinois Compiled Statutes · read “Any motor vehicle with a window to the rear of the driver's seat treated in this manner shall be equipped with a side mirror on each side of the motor vehicle which are in conformance with Section 12-502.” |
This state publishes no light-transmittance figure for this glass, so there is no percentage to match a film against. Other rules — colour, reflectivity, obstruction — can still apply, so we are not going to present a shelf as though nothing does.
Sources
- 625 ILCS 5/12-503 — Illinois Compiled Statutes, read
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