When you’re having problems with a co-trustee, your first move is to read the trust document, because it controls how decisions get made and what happens when co-trustees disagree. From there, your options fall along a spectrum: talk it out, put your dissent in writing to protect yourself from liability, mediate, ask a court for instructions on a specific deadlock, or petition to remove the co-trustee entirely. The right response depends on whether you’re dealing with an honest disagreement about strategy or an actual breach of fiduciary duty.
Start With the Trust Document
The trust instrument is the first place to look. It may divide authority so that one co-trustee controls investments and the other handles distributions. It may require unanimous agreement, or allow a majority to act. Whatever it says generally controls.
When the document is silent, the default rule in most states is straightforward. Two co-trustees must agree unanimously. Three or more can act by majority vote. This rule appears in the Uniform Trust Code, which more than 35 states have adopted in some form. If a co-trustee is temporarily unavailable due to illness, incapacity, or absence, the remaining co-trustees can generally act without them when prompt action is needed to protect the trust.
One point catches many co-trustees off guard: you have a legal duty to participate. Checking out and letting the other co-trustee run everything doesn’t shield you from liability. It can increase your exposure.
Is This a Disagreement or a Breach?
Before choosing a remedy, figure out which problem you actually have. The two look different and call for different responses.
A disagreement is a judgment call where reasonable trustees can differ. One co-trustee wants aggressive growth, the other wants capital preservation. One reads the “health, education, maintenance, and support” standard broadly, the other narrowly.1Fidelity Investments. How to Protect Trust Assets One wants to sell the family home to stop the drain on trust cash, the other refuses because a beneficiary lives there. These are strategy conflicts, and they call for negotiation, mediation, or if truly stuck, a court petition for instructions.
A breach of fiduciary duty is different. Trustees owe duties of loyalty and prudence to the beneficiaries.2Legal Information Institute. Fiduciary Duties of Trustees Loyalty means acting solely in the beneficiaries’ interest. Prudence means managing trust property with the care a reasonable person would exercise. Self-dealing (such as buying trust property below market for yourself), commingling personal and trust funds, failing to keep records, making reckless investments, or favoring one beneficiary without any basis in the trust terms are breaches, not judgment calls.3Justia. Trustees Legal Duties and Liabilities They expose the breaching trustee to personal liability, and they call for immediate legal action, not more meetings.
Put Your Dissent in Writing
This is where co-trustees most often trip themselves up. If the other co-trustee takes an action you oppose and you say nothing on paper, you can be held liable alongside them. A co-trustee who knows about a breach and does nothing to stop it shares responsibility for the resulting harm.3Justia. Trustees Legal Duties and Liabilities
If you’re outvoted on a decision, put your dissent in writing before or at the time the action is taken. Under the rules adopted in most states, a dissenting co-trustee who joins in a majority-directed action and has notified the other co-trustees of the dissent in writing is generally not personally liable for that action. A verbal objection on a phone call doesn’t count. Write it. Send it. Keep a copy.
Written dissent has limits. If the action rises to a serious breach of duty, a memo isn’t enough. You may need to take affirmative steps to prevent the breach, including filing a court petition to block it. Objecting on paper while a co-trustee empties the accounts will not protect you.
Try to Resolve It Without Court
Litigation is paid out of the trust’s assets, which means the beneficiaries bear the cost. Before filing anything, work through the cheaper options.
Direct Communication
Many co-trustee disputes escalate because the parties stop talking. If you’re stuck on an investment decision, bringing in a neutral financial advisor to evaluate both positions can give both sides the cover they need to compromise. Frame the conversation around the trust’s stated purpose and the beneficiaries’ needs, not personal preferences.
Mediation
Some trust documents require mediation before court action. Even when they don’t, voluntary mediation with a trust and estate mediator is typically faster and cheaper than litigation. A mediator doesn’t impose a decision; they help the parties find workable middle ground. The process is confidential and keeps the dispute out of the public record.
Trust Protector
Modern trusts increasingly name a trust protector with authority to resolve deadlocks. Depending on the terms, a trust protector may break tie votes, modify trust provisions, or even remove and replace a co-trustee without court involvement. If your trust names one, check exactly what powers they hold before pursuing anything else.
Petition the Court for Instructions
When informal resolution fails and the trust provides no tiebreaker, the standard remedy for a specific deadlock is a petition for court instructions. Any co-trustee can file. The Uniform Trust Code explicitly allows judicial proceedings related to any matter involving a trust’s administration, including requests for instructions.
The judge hears both sides, considers the trust’s terms and the beneficiaries’ interests, and issues a binding order on the specific question. If co-trustees are locked on whether to sell a piece of real estate, the order resolves that question and leaves both co-trustees in place to continue administering the trust. Expect the process to take weeks to months, and expect the trust to pay the attorney fees and court costs. Use this for genuine impasses, not as leverage.
Removing a Co-Trustee
When the problem is a pattern of harmful conduct rather than a single disagreement, removal may be the only real fix. Either a co-trustee or a beneficiary can petition the court. Courts take removal seriously because it overrides the trust creator’s original choice, but they will act when the evidence supports it.
Grounds for removal recognized in most states include:
- Serious breach of trust, such as embezzlement or self-dealing.
- Lack of cooperation among co-trustees that substantially impairs administration.
- Unfitness, or a persistent failure to carry out trustee duties, where removal best serves the beneficiaries.
- A substantial change of circumstances, when all beneficiaries request removal, a suitable replacement is available, removal serves the beneficiaries’ interests, and it doesn’t conflict with a core purpose of the trust.
The petitioner carries the burden of proof. You’ll need documentation: missed tax filings, unauthorized transactions, refusal to communicate, financial records showing losses from mismanagement. A single heated disagreement about strategy rarely clears the bar. Courts look for a pattern, or a single act serious enough to justify overriding the trust creator’s appointment. If removal is granted, the court appoints a successor following whatever process the trust document specifies, or under state law if the document is silent.
Resignation Instead of Removal
Removal isn’t the only exit. Often the simpler path is a voluntary resignation. Under the Uniform Trust Code framework adopted in most states, a trustee can resign without court approval by giving at least 30 days’ written notice to the trust’s creator (if living), all qualified beneficiaries, and any remaining co-trustees.
If the trust document restricts resignation, or the co-trustee wants a formal discharge of liability, resignation with court approval is also available, and the court can impose conditions to protect the trust’s property during the transition. One important limit: resignation doesn’t wipe the slate clean. A resigning co-trustee remains liable for actions taken while they served.
Sometimes simply pointing this option out ends the standoff. A co-trustee who no longer wants the responsibility may be willing to step down once they see the process is straightforward and doesn’t require admitting fault.
What to Do After a Co-Trustee Leaves
Once a co-trustee is removed or resigns, the administrative cleanup often takes longer than people expect.
Notify the IRS. Form 56 (Notice Concerning Fiduciary Relationship) is the standard form for reporting the beginning or ending of a fiduciary relationship, and it should be filed to update the IRS on who is now responsible for the trust’s tax obligations.4Internal Revenue Service. About Form 56, Notice Concerning Fiduciary Relationship Skipping this creates confusion over who is on the hook for tax reporting going forward.
Update the financial institutions. Banks, brokerages, and other custodians holding trust assets require new signature cards and certified copies of the court order or resignation letter before they’ll change account access. Because the default rule for two co-trustees is that both must sign, the departing co-trustee’s authorization has to be formally revoked. Don’t assume the bank will handle this on its own. Contact every institution holding trust assets and send the documentation.
If the trust holds real property, the title records may need updating to reflect the change in trusteeship, typically by recording an affidavit or certificate of trust with the county where the property sits.