If you are paying your property taxes in installments, a major deadline is coming up next week. County treasurers across the state, including Door County Treasurer Ryan Schley, are reminding property owners who opted to pay their tax bill across two installments that their next payment is due on July 31st. Missing the payment could cost you even more money per Wisconsin State Statutes and county ordinances. Any property taxes not paid on time will be considered delinquent, and interest & penalty will be assessed retroactively to February, which is when full payment is due for those who choose to do one lump sum.  Therefore, interest of seven percent (7%) and penalty of three and a half percent (3.5%) will be charged in August, increasing one and a half percent (1.5%) per month thereafter until they are paid in full. Schley recommends including tax bill stubs or tax parcel numbers with your tax payment to avoid delays and ensure accuracy. You can either mail in your check, drop it off at your county treasurer’s office, or pay online if available.