If your tax bill qualifies and if you choose to pay your
taxes in installments, then you must pay each installment by
the due date or the Total amount of your
remaining unpaid taxes, special assessments, special charges
and special taxes (if any) will be delinquent. (s. 74.11(7)
or 74.12 & 74.85, Wis. Stats.)
All delinquent taxes are subject to interest of 1% per
month (fraction of a month counts as a whole month)
from February 1 until paid. (s. 74.47), and an
additional 0.5% per month penalty.
