Property Taxes are due NOVEMBER 30th at 5:00 PM. If November 30th falls on a weekend, the due date is the following business day. If November 30th is on Saturday, the due date is December 2nd. If November 30th is on Sunday, the due date is December 1st. If the payment is mailed and postmarked on or before the due date, the payment is not late. If tax payment are paid late, there is a penalty of the greater of $10 or 2.5% of the tax due for each parcel of property in accordance with Utah law (U.C.A. 59-2-1331).