Idaho Code § 15-3-817

If a community estate is administered as if each decedent survived the other because of application of the simultaneous death act, section 15-2-104[, Idaho Code,] and section 15-2-601[, Idaho Code,] of this code, or the provisions of a will, community debts will be charged ratably to each half of the community estate and separate debts to the estate of the decedent by whom they were incurred.