On the notice
Look up if you are overpaying.
Is assessed value the same as market value?
No. Market value is what a willing buyer would pay. Assessed value is the county's tax figure, which the IAAO glossary describes as the value placed on property subject to taxation, at market or at a legally set fraction of market. Some states print a full-market number. Others print a fraction and raise the rate to match. The bill still starts from whatever number was printed.
This page defines the term. Older pages on market value versus assessed value and understanding a property assessment stay on the gap between a sale and a notice. The property tax glossary maps the rest of the sheet.
Why does the printed assessed value matter?
Because millage does not care what the house would list for. It cares what the roll says. A property tax appeal, when one is filed, is aimed at that printed value. Fair Appeal reviews the property and decides whether to file, and you pay only if FairAppeal saves you money.