An appeal of the current year's real property assessment may have two different filing deadlines which are based on when the Form 11 Notice of Assessment is mailed. If Form 11 is mailed before May 1 of the assessment year, the filing deadline is June 15 of that year. If Form 11 is mailed after April 30 of the assessment year, the filing deadline is June 15 in the year that the tax statements are mailed (IC 6-1.1-15-1.1).