Second Installment of Taxes Due Posted on July 9, 2019 at 2:57 pm.Written by Blyann Johnson Just a friendly reminder that the second installment of your 2018 Real Estate and/or Personal Property Taxes are due to the Trempealeau County Treasurer by July 31st. Mail your payments to : Laurie Halama, P O Box 67, Whitehall, WI 54773