Interest will be added to any tax not paid on or before its due date, for each month or a fraction thereof after the date on which the tax payment was due. Prior to a commencement of a new fiscal year (July 1st) the Selectboard shall determine by resolution the interest rate for that fiscal year, which in no case shall exceed one and one-half percent per month. In addition, a late charge of five percent will be added to any tax not paid on or before its due date. The Selectboard shall have the power to waive such penalty for just cause shown for any tax paid within seven days after said due date. If the taxpayer and the Town enter into an agreement to bring a delinquent account current, payments may be applied to the current tax due and past principal. All tax payments paid by taxpayers who do not have a current agreement shall first be applied to the most outstanding delinquent accounts. (Amended 2011, No. M-7, § 2, eff. May 17, 2011.)