Local News TOWN OF YUCCA VALLEY REMINDS YOU THE SALES TAX GOING UP SATURDAY By Z107.7 News - March 29, 2017 2 The Town of Yucca Valley reminds Morongo Basin residents that the new sales tax rate will take effect Saturday, April 1, as a result of voter-approved Measures Y and Z. The new tax rate will be 8¾ percent.