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The Basics of Disclaimer Trusts

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disclaimer trust

With the estate tax exemption expected to drop significantly in 2026, many clients are interested in estate planning to minimize those taxes. One of the tools an estate planning attorney might suggest to help avoid and minimize those taxes is the disclaimer trust.

What is a disclaimer trust?

A disclaimer trust is a type of trust used primarily to provide flexibility around tax planning. The disclaimer trust is used by married couples. It’s key feature is that is gives the surviving spouse the option to “disclaim” some of the trust assets on the trust on the death of the first spouse. Assets disclaimed into the irrevocable decedent’s trust are able to be used by the surviving spouse during their lifetime, but are not included in the taxable estate.

How does it work?

During both spouse’s lifetime, the disclaimer trust is a joint revocable trust. Upon the death of the first spouse, the surviving spouse has the option of disclaiming some of the assets. These assets go into the “decedent’s trust.” The decedent’s trust is irrevocable and removes assets from the taxable estate. The rest of the estate remains in the “survivor’s trust.” Usually the surviving spouse is able to use funds in both the survivor’s trust and the decedent’s trust. The survivor can only amend the terms of the survivor’s trust though, in case they, wanted to change the beneficiaries.

If the surviving spouse chooses not to disclaim, then all of the assets remain in the revocable trust. These assets can all be used by the surviving spouse during their lifetime. If no assets are disclaimed, the survivor will still be able to amend the trust and change the dispositive provisions.

Want to see this in a more visually appealing way? Check out this Disclaimer Trust Diagram.

Why would you disclaim?

The decision to disclaim is at it’s core a tax planning decision. If the gross value of the combined estate is considerably less than the estate tax exemption there may not be a need to disclaim. Although, you may want to also consider the realistic likelihood of significant changes in the taxable estate. The estate tax exemption amount could also change and should be considered. If the gross value of the combined estate is close to or exceeds the federal estate tax exemption, then, to avoid surpassing the estate tax exemption, assets likely ought to be disclaimed. Of course, it is hardly ever truly that simple.

When making the decision to disclaim assets, the surviving spouse will need to consider many things. This includes the value of the estate, the estate tax exemption amount, the likelihood that there will be significant changes in the value of the estate and any upcoming changes in tax law. Timelines are also important to consider. There are important deadlines at nine months, fifteen months, and five years after the date of death for the first spouse. Before making any decisions, the surviving spouse will need to consult with their tax advisor and legal counsel.

Is the disclaimer trust right for you?

There are many considerations to take into account for estate planning. Generally, the disclaimer trust can be a good fit for couples who may be close to the estate tax exemption. But, there are considerations other than tax consequences to consider when creating a disclaimer trust. You might also consider:

  • Will the surviving spouse have the capacity/ know how to disclaim assets appropriately?
  • Are both trustors comfortable giving the survivor of them the ability to amend the trust and dispositive provisions after death?
  • Are estate tax exemption amounts likely to change in the near future? Right now, the answer to this one is yes.

You should consult with an estate planning attorney to find out if a disclaimer trust is a good fit for your estate plan.

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Robert B. Fleming

Attorney

Robert Fleming is a Fellow of both the American College of Trust and Estate Counsel and the National Academy of Elder Law Attorneys. He has been certified as a Specialist in Estate and Trust Law by the State Bar of Arizona‘s Board of Legal Specialization, and he is also a Certified Elder Law Attorney by the National Elder Law Foundation. Robert has a long history of involvement in local, state and national organizations. He is most proud of his instrumental involvement in the Special Needs Alliance, the premier national organization for lawyers dealing with special needs trusts and planning.

Robert has two adult children, two young grandchildren and a wife of over fifty years. He is devoted to all of them. He is also very fond of Rosalind Franklin (his office companion corgi), and his homebound cat Muninn. He just likes people, their pets and their stories.

Elizabeth N.R. Friman

Attorney

Elizabeth Noble Rollings Friman is a principal and licensed fiduciary at Fleming & Curti, PLC. Elizabeth enjoys estate planning and helping families navigate trust and probate administrations. She is passionate about the fiduciary work that she performs as a trustee, personal representative, guardian, and conservator. Elizabeth works with CPAs, financial professionals, case managers, and medical providers to tailor solutions to complex family challenges. Elizabeth is often called upon to serve as a neutral party so that families can avoid protracted legal conflict. Elizabeth relies on the expertise of her team at Fleming & Curti, and as the Firm approaches its third decade, she is proud of the culture of care and consideration that the Firm embodies. Finding workable solutions to sensitive and complex family challenges is something that Elizabeth and the Fleming & Curti team do well.

Amy F. Matheson

Attorney

Amy Farrell Matheson has worked as an attorney at Fleming & Curti since 2006. A member of the Southern Arizona Estate Planning Council, she is primarily responsible for estate planning and probate matters.

Amy graduated from Wellesley College with a double major in political science and English. She is an honors graduate of Suffolk University Law School and has been admitted to practice in Arizona, Massachusetts, New York, and the District of Columbia.

Prior to joining Fleming & Curti, Amy worked for American Public Television in Boston, and with the international trade group at White & Case, LLP, in Washington, D.C.

Amy’s husband, Tom, is an astronomer at NOIRLab and the Head of Time Domain Services, whose main project is ANTARES. Sadly, this does not involve actual time travel. Amy’s twin daughters are high school students; Finn, her Irish Red and White Setter, remains a puppy at heart.

Famous people's wills

Matthew M. Mansour

Attorney

Matthew is a law clerk who recently earned his law degree from the University of Arizona James E. Rogers College of Law. His undergraduate degree is in psychology from the University of California, Santa Barbara. Matthew has had a passion for advocacy in the Tucson community since his time as a law student representative in the Workers’ Rights Clinic. He also has worked in both the Pima County Attorney’s Office and the Pima County Public Defender’s Office. He enjoys playing basketball, caring for his cat, and listening to audiobooks narrated by the authors.