Alaska Stat. § 34.77.130 – Mixed property

(a) Except as provided otherwise in AS 34.77.110, mixing community property with property having another classification reclassifies the other property as community property unless the component of the mixed property that is not community property can be traced.
(b) If a community property agreement provides that all property acquired by either or both spouses during marriage is community property, application by one spouse of substantial labor, effort, inventiveness, physical skill, intellectual skill, creativity, or managerial activity on individual property of the other spouse creates community property attributable to the application if
1. (1) reasonable compensation is not received for the application; and
2. (2) substantial appreciation of the individual property of the other spouse results from the application.