Different areas have different millage rates. For example, the millage rate in Metairie is higher than the millage rate in Kenner. In Kenner you pay 2 millage rates, but the combined rate is still less than the millage rate in Metairie. All homeowners in Louisiana are exempt from paying taxes on the first $75,000 of the assessed value.
Welcome to Louisiana! Property taxes are based on the assessed value. All homes are reassessed every 4 years and whenever a property changes hands. While this sounds like market value, it's not always the case. If you are budgeting for a purchase, it is safe to take the purchase price less the $75,000 homestead exemption, if applicable.