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Testamentary Trusts: Terms for a Surviving Spouse

Why would I create a testamentary trust for my spouse?

A testamentary trust for a surviving spouse can be an effective way to provide financial support for your spouse while also ensuring that remaining assets ultimately pass to the beneficiaries you choose after your spouse’s death. The trust can include specific instructions about how assets are managed and distributed during your spouse’s lifetime, and it can appoint a trustee to manage those assets on the spouse’s behalf.


There are several types of trusts commonly used to benefit a surviving spouse. The right structure depends on your financial situation, your family dynamics, and your long-term planning goals.


Key terms

  • Testamentary trust
    A testamentary trust is a trust created under a will that becomes effective after the death of the person who created the will (the decedent). The trust is funded with assets from the decedent’s estate, and the terms of the trust are outlined in the will.


  • Trustee
    The trustee is the person or organization responsible for managing the assets held in the testamentary trust. The trustee holds legal title to the trust property and is responsible for investing the assets and making distributions to beneficiaries according to the terms of the trust.


  • Beneficiary
    A beneficiary is the person or people who are entitled to benefit from the trust assets. In this context, the surviving spouse is typically the primary beneficiary during their lifetime.


  • Marital deduction
    The marital deduction is a provision of federal estate tax law (and many state estate tax laws) that allows unlimited transfers of assets from one spouse to another without triggering estate or gift taxes. Testamentary trusts are often used alongside the marital deduction to help manage taxes while ensuring assets ultimately pass to intended beneficiaries.


Common types of testamentary trusts for a spouse

  • Marital trust
    A marital trust is designed to provide income to the surviving spouse during their lifetime. After the spouse’s death, the remaining assets pass to other beneficiaries, such as children or other heirs. This structure is often used to defer estate taxes until the surviving spouse’s death. During the spouse’s lifetime, the spouse is usually the sole beneficiary of the trust.


  • QTIP trust
    A Qualified Terminable Interest Property (QTIP) trust also provides income to the surviving spouse for their lifetime, with the remaining assets passing to other beneficiaries after the spouse’s death. A QTIP trust can be especially helpful when the person creating the trust wants to provide for their spouse while also ensuring that the remaining assets eventually go to specific beneficiaries, such as children from a prior marriage.


  • Credit shelter trust
    A credit shelter trust, also known as a bypass trust or family trust, is designed to use the estate tax exemption of the first spouse to die while still providing benefits to the surviving spouse. 
    • When one spouse dies, an amount up to the estate tax exemption can be placed into the trust. 
    • The surviving spouse may receive income from the trust and sometimes access to principal, but the assets are not included in the surviving spouse’s taxable estate. 
    • This structure can help preserve assets for the next generation while also providing financial support to the surviving spouse.


Factors to consider when choosing a trust structure

  • Your spouse’s needs
    One of the most important considerations is ensuring that the trust is designed to meet your spouse’s needs both now and in the future. This may include considering your spouse’s age, health, lifestyle, and potential changes in circumstances over time.


  • The size of your estate
    If your estate is large, certain trust structures—such as a credit shelter trust—may help minimize estate taxes. Planning ahead can help ensure that assets are distributed according to your wishes while reducing potential tax burdens.


  • The needs of other beneficiaries
    If you have children, grandchildren, or other beneficiaries, it may be helpful to consider how the trust for your spouse interacts with their future inheritance. Some trust structures allow for support of multiple beneficiaries over time while preserving assets for later generations.


  • Tax considerations
    Different trust structures have different tax consequences. If your estate may be subject to estate taxes, careful trust planning may help reduce tax exposure and maximize the benefits available to your spouse and other beneficiaries.


  • Flexibility
    You may want the trust to allow adjustments if circumstances change. For example, the trust may allow changes in trustees or provide flexibility in how distributions are made to adapt to future needs.


  • Choice of trustee
    Selecting the right trustee is an important decision. The trustee must manage the trust assets responsibly and make distributions according to your wishes. In some cases, a spouse may serve as trustee of their own trust, while in other situations it may be preferable to appoint another trusted individual or professional trustee.


  • Overall purpose of the trust
    It is helpful to consider what you want the trust to accomplish. For example, your goal may be to provide maximum support for your spouse, to preserve assets for children or grandchildren, or to balance both priorities over time.


Special considerations for blended families

Blended families often require more careful estate planning because of the presence of stepchildren, former spouses, and multiple sets of heirs. Testamentary trusts can help address these complexities by providing structure for how assets are managed and ultimately distributed.

  • Children from prior relationships
    If you have children or grandchildren from a previous marriage, you may want to ensure they receive an inheritance after your spouse’s death. A testamentary trust can provide financial support to your spouse during their lifetime while preserving the remaining assets for your children or other chosen beneficiaries.
  • Trustee selection
    Choosing a trustee can be particularly important in blended family situations. If a surviving spouse also serves as trustee for a trust benefiting both themselves and stepchildren, conflicts of interest may arise
  • In some cases, having the spouse serve as trustee may provide continuity and familiarity with family needs. In other cases—especially when the trust is large or family dynamics are complex—it may be helpful to appoint an independent or professional trustee who can act in a neutral and objective manner.

Professional trustees, such as trust companies or experienced advisors, can sometimes help ensure that the trust is administered according to its terms and that the interests of all beneficiaries are considered fairly.

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