Definition: All U.S. citizens can take this deduction for property transferred to a spouse who is also a U.S. citizen either during life or after death. In addition, property passing into certain types of trusts created by a deceased spouse for the benefit of a surviving spouse qualify for this deduction, including a marital deduction trust and qualified terminable interest property (or "QTIP") trust, which is the "A" Trust in a true AB Trust plan.

