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Minnesota Window Tint Laws (2026)

Info: Front side windows must let at least 50% of light through, with a 3% margin allowed; no added tint is allowed on the windshield.

InfoVerified Jun 18, 2026

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Front side windows must let at least 50% of light through, with a 3% margin allowed; no added tint is allowed on the windshield. (Minn. Stat. 169.71)

Official source: revisor.mn.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Window Tint in states bordering Minnesota

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IowaInfo
The windshield must let at least 70% of light through; the front side windows and the sidewings (the small vent windows) next to the driver must let at least 50% through — a measurable legal standard that replaced the former 70% administrative rule, effective July 1, 2026. Law-enforcement vehicles are exempt while on duty. (HF 766; Iowa Code 321.438(2))
Verified Jul 20, 2026 · Source: legis.iowa.gov · Full Iowa rule →
North DakotaInfo
Front side windows must let at least 50% of light through; the windshield must let at least 70% through, with non-reflective tint allowed above the AS-1 line — the marking near the top — or across the top 5 inches. (N.D. Cent. Code 39-21-39)
Verified Jun 18, 2026 · Source: ndlegis.gov · Full North Dakota rule →
South DakotaInfo
Front side windows must let at least 35% of light through, with a 9% tolerance allowed; windshield tint is allowed only above the AS-1 line — the marking near the top of the windshield. (S.D. Codified Laws 32-15-2.4)
Verified Jun 18, 2026 · Source: sdlegislature.gov · Full South Dakota rule →
WisconsinInfo
Front side windows must let at least 50% of light through, and the tint must be non-reflective; windshield tint is allowed only above the AS-1 (or "A") mark on the windshield. (Wis. Admin. Code Trans 305.34)
Verified Jun 18, 2026 · Source: docs.legis.wisconsin.gov · Full Wisconsin rule →

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