미국의 신탁에 대한 상속세 및 증여세제에 대한 고찰

A trust is a legal relationship in which a settlor transfers or secures property to a trustee for the purpose of achieving specific objectives, and the trustee manages and disposes of such property accordingly. Originating in England, the trust system has been most extensively utilized and developed in the United States. The core issue in U.S. trust taxation lies in whether the settlor and the trust are treated as separate entities, or whether the settlor retains a certain degree of influence or connection with the trust. Where the settlor and the trust are clearly separated at the time of trust formation, the transfer of property is generally subject to gift tax; however, if the settlor retains influence over the trust, gift taxation does not arise. In addition, U.S. estate tax is imposed not only on property transferred at the decedent’s death but also, in certain circumstances, on property transferred during the decedent’s lifetime. The latter category typically includes property transferred to a trust where the settlor, as the decedent, retains an interest or power over the trust property. Specifically, if the settlor retains the right to receive income from the property, continues to use or enjoy the property, or holds the power to determine the identity of beneficiaries, the timing of distributions, or the amount of benefits, such inter vivos trust property is included in the gross estate and becomes subject to estate tax upon the settlor’s death. This paper provides a detailed analysis of the U.S. estate and gift tax treatment of trusts, followed by a brief overview of the Korean estate and gift tax regime applicable to trusts, and derives the following implications. First, with respect to the timing of gift taxation, in the case of third-party beneficiary trusts where the settlor does not retain the power to change beneficiaries and no beneficiary change is permitted, it is necessary to advance the timing of gift taxation to the time of the trust’s establishment. Second, there is a need to supplement and refine the tax rules governing inheritance-type trusts. In particular, for inheritance-type trusts such as testamentary substitute trusts and successive beneficiary trusts, tax provisions should clearly address the extent of the settlor’s influence during both the settlor’s lifetime and after death. Furthermore, where the trust is structured so that different persons are designated to receive the trust principal and beneficial interests after the settlor’s death, clearer statutory standards are required. Finally, as the civil law concept of ownership conflicts with the concept of future interests inherent in testamentary substitute trusts and successive beneficiary trusts, it is necessary to clarify the tax basis for taxing such future interests within the minimum scope that does not infringe upon civil law principles.