Union County is in the process of conducting a property tax revaluation. According to the County's website, "Under North Carolina law, the county regularly revalues property for the purpose of assessing property taxes so that residents and businesses are paying based on the current market value of their property."
For more information on how this process works, visit https://www.unioncountync.gov/departments/taxes-property/2021-revaluation or watch the video below.