Deltona property taxes are actually among the lowest among cities in Volusia County. Many taxing authorities other than the City of Deltona, such as the County or the School Board, may also have charges on your tax bill. Your property taxes are based on the millage rate, which is set by the City Commission, and your property’s assessed value, which is determined by the Volusia County Property Appraiser. If you have questions about your property’s assessed value or possible tax exemptions, you can contact the Property Appraiser at 386-736-5901.