You can appeal, but FYI homes are usually only get a "fresh" reassessment when they are purchased because based on current value (what you paid). This causes a lot of discrepancies between similar properties, because people that have had their homes for a very long time are often not subject to that and the Homestead Tax Credit keeps their taxes in check (as will yours also going forward). When I bought my house, it hadn't be re-assessed in over 20 years. I appealed because they assessed it over what I paid, the condition was a bit less good than the comps they used, and there were errors in the info they used to make the assessment. They get that info from a 3rd party provider I was told.