This document provides information about Lancaster County's 2018 property reassessment. It summarizes that Lancaster County uses a base year of 2015, with reassessed values taking effect in 2018. It explains that millage rates must be adjusted in reassessment years to limit tax increases. While individual property taxes may increase or decrease based on reassessed value, taxing bodies like counties are limited to a 10% maximum revenue increase. The document provides timelines and details for property owners to research comparable property sales, receive preliminary notices in March 2017, file appeals after final notices in June 2017, and understand the reassessment and appeal processes.