A historic preservation easement is the best way to ensure that a historic property retains its integrity for future generations. An easement is a legal contract between a qualified organization, such as CAP, and a property owner by which the owner agrees the property will not be changed in a way that would compromise its historical and architectural integrity. The agreement is filed in the county land records and is binding on both the owner who grants it as well as all subsequent owners. Easement donors may be eligible for a federal income tax deduction equal to theappraised value of the easement. North Carolina also offers a state income tax credit for eligible easement donors.