Parcel number (PIN/APN)
The county's unique identifier for a piece of land.
Sometimes called a PIN, APN, tax ID, or property key. It identifies the parcel in every county system and is the reliable way to look a property up — addresses are inconsistent, parcel numbers are not.
One parcel can contain several addresses, particularly in new developments before a subdivision is split into individual lots. That is a common reason a new-build address returns nothing in county records.
Related
- Notice of assessment — The letter that starts your appeal clock.
- Record error — The county's file says your home is something it is not.
Property tax is state law and the details differ. For what applies where you live, see coverage by state and your appeal deadline.