Definitions for "Alternate Valuation Date"
a date other than the date of death (generally six months after death) that an executor may elect as the valuation date for estate assets
A date used by the administrator to value a decedent's estate. This date is not to exceed six months after date of death. The value of the assets must be lower and result in a reduction of the gross estate and reduction in the estate tax liability to qualify for its use.
A date exactly six months following the decedent’s date of death that the personal representative may choose to revalue for estate tax purposes, all assets held by the estate.