Is Window Tint Illegal? Post author By brett7 Post date March 29, 2023 No Comments on Is Window Tint Illegal? A Is Window Tint Illegal? Yes and No. In Illinois, it is not illegal for window tint but some restrictions do apply. → I thought the window tint law changed? Can’t I tint my windows as dark as I want to? Leave a Reply Cancel replyYou must be logged in to post a comment.