Rule Against Inalienability Law and Legal Definition

Rule against Inalienability refers to a principle that property must not be made nontransferable. It is a rule that prevents property from being rendered incapable of transfer within the perpetuity period, i.e. a life presently existing plus a period of 21 years. A gift that prevents transfer within this period is void. This rule is similar to Rule against Trusts of Perpetual Duration which prohibits non charitable trusts from lasting beyond the perpetuity period.