A South Dakota Marital-deduction Residuary Trust with a Single Trust or and Lifetime Income and Power of Appointment in Beneficiary Spouse is a type of trust that is established by a single individual, referred to as the trust or granter, residing in South Dakota. This trust is aimed at maximizing the use of the marital deduction for estate tax planning and providing a lifetime income to the surviving spouse, along with giving them the power to appoint the trust assets among certain beneficiaries upon their death. In this specific type of trust, the trust or transfers their residuary estate, which includes all assets remaining after specific bequests and debts are settled, into the trust. The trust is designed to take advantage of the marital deduction, which allows an unlimited transfer of assets to the surviving spouse without incurring any estate taxes upon the trust or's death. The primary purpose of this trust is to provide financial security and support for the surviving spouse during their lifetime. The trust assets are managed by a designated trustee, who is responsible for investing and distributing income from the trust to the beneficiary spouse. The income can be distributed regularly to cover living expenses, medical bills, or any other needs outlined in the trust document. Additionally, the beneficiary spouse is granted the power of appointment, which means they have the authority to determine how the trust assets will be distributed upon their death. This power allows the surviving spouse to allocate the trust assets among certain beneficiaries, such as children or other family members, according to their wishes. The South Dakota Marital-deduction Residuary Trust with a Single Trust or and Lifetime Income and Power of Appointment in Beneficiary Spouse can be customized to meet individual needs and preferences. For example, there might be variations in the distribution rules, income payout percentages, or the inclusion of additional beneficiaries. In summary, this trust structure provides a highly flexible and tax-advantaged approach to estate planning for single trustees in South Dakota. It enables the transfer of substantial assets to a surviving spouse while minimizing or eliminating estate tax liabilities. The trust ensures the financial well-being of the surviving spouse through a lifetime income stream and grants them the authority to decide the ultimate disposition of the trust assets upon their passing.