N.D.C.C. § 57-20-01 — Real and personal property taxes - When due and delinquent - Penalties

All real and personal property taxes and yearly installments of special assessment taxes
become due on the first day of January following the year for which the taxes were levied. The
first installment of real estate taxes, all personal property taxes, and yearly installments of
special taxes become delinquent after the first day of March following and, if not paid on or
before said date, are subject to a penalty of three percent, and on May first following an
additional penalty of three percent, and on July first following an additional three percent, and an
additional penalty of three percent on October fifteenth following. From and after January first of
the year following the year in which the taxes become due and payable, simple interest at the
rate of twelve percent per annum upon the principal of the unpaid taxes on personal property
must be charged until the taxes and penalties are paid, with the interest charges to be prorated
to the nearest full month for a fractional year of delinquency. The second installment of real
estate taxes becomes delinquent after October fifteenth, and, if not paid on or before that date
becomes subject to a penalty of six percent.
57-20-01.1. Extension of due date for property taxes when county treasurer's office is
closed.
When the due date for full or installment payment of any property taxes or special
assessments falls on a day on which the county treasurer's office is not open for business, the
payment may be made on the first day following on which the office is open without penalty or
loss of discount.