Time taxes become delinquent.

Income and franchise taxes shall become delinquent if not paid when due under s. 71.03 (8) (b) and (c), 71.24 (9) or 71.44 (4) (b), and the department shall immediately proceed to collect the same. For the purpose of such collection the department or its duly authorized agent shall have the same powers as conferred by law upon the county treasurer, county clerk, sheriff and district attorney.

Any amount not deposited or paid over to the department, or to the person that the department prescribes, within the time required shall be deemed delinquent and deposit reports or withholding reports filed after the due date shall be deemed late. In the case of a timely filed deposit or withholding report, withheld taxes shall become delinquent if not deposited or paid over on or before the due date of the report. In the case of no report filed or a report filed late, withheld taxes shall become delinquent if not deposited or paid over by the due date of the report. In the case of an assessment under s. 71.83 (1) (b) 2., the amount assessed shall become delinquent if not paid on or before the due date specified in the notice of deficiency, but if the assessment is contested before the tax appeals commission or in the courts, it shall become delinquent on the 30th day following the date on which the order or judgment representing final determination becomes final.

Any additional income or franchise tax assessment contested before the tax appeals commission or in the courts, which is finally determined to be correct, shall become delinquent if not paid on or before the 30th day following the date on which the order or judgment representing such final determination becomes final and conclusive. Any additional income or franchise tax assessment so contested shall be subject to s. 71.74 (14).