An estate attorney probably told you that an irrevocable trust could never be altered once the ink dried on the final signature page. However, Bank of America Private Bank warns that this widely held assumption is one of the most costly mistakes families make in estate planning today.
The firm recently published an in-depth analysis showing how irrevocable trusts can be modified, restructured, or even merged entirely without setting foot inside a courtroom. Tax laws have shifted dramatically since most existing irrevocable trusts were drafted, and family circumstances have changed in ways that nobody could have predicted.
Here is what Bank of America is telling its wealthiest clients, and what you should seriously consider doing with your own trust right now.
Bank of America says the biggest trust myth is permanence itself
The word “irrevocable” creates the core misunderstanding for most families. People hear that term and conclude that every single provision inside the trust document is frozen.
Trust law has evolved significantly in most states over the past two decades, creating multiple legitimate avenues to adjust provisions once considered completely untouchable.
The available mechanisms include trust decanting, trust merger, nonjudicial settlement agreements, and built-in trust protector provisions, the firm’s fiduciary advisory team explained in its analysis.
The need for change often depends on why the trust was created in the first place and how the original document was drafted, Michelle Minon, Market Trust Executive for Bank of America, said. You might have a trust that was designed to shelter assets at an estate tax exemption level that no longer applies to your financial situation.
5 situations that signal your irrevocable trust needs a revision now
Bank of America identifies 5 specific scenarios where families should seriously evaluate whether their existing irrevocable trust structure still serves its original protective and tax-efficient purpose.
- Family changes, including marriage, divorce, or the birth of additional children, may require updated beneficiary provisions to ensure fair and equitable treatment going forward.
- Distribution timing may need adjustment, either accelerating transfers to the next generation or restricting access for a beneficiary who has demonstrated financial irresponsibility.
- Trustee responsibilities may need to be restructured, especially when families want direct control over investment decisions that a corporate trustee is unwilling to make on their behalf.
- New tax legislation, including the recent increase in the federal estate tax exemption to $15 million per individual, can render existing trust structures either redundant or counterproductive.
- Drafting errors such as misspelled names, ambiguous language, or outdated references can create legal complications that distort the grantor’s original intent for the trust’s beneficiaries.
Each of these situations creates a measurable gap between what the trust was originally designed to accomplish and what it delivers under current laws and circumstances.
“Decanting can’t happen unless a trustee has the power to invade trust principal, which means that an income-only trust is not eligible for decanting,” said Molly Bailey, Regional Fiduciary Advisor for Bank of America.” — Molly Bailey, (Regional Fiduciary Advisor for Bank of America.)
The longer you wait to address these gaps, the more expensive and complicated the correction process typically becomes for your heirs and surviving family members. You should not assume your trust is functioning as intended simply because no one has raised a red flag about it over the years since its establishment.
Proactive review is the only reliable way to catch structural problems inside an irrevocable trust before they become serious and potentially costly financial problems for your family.
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How trust decanting works and when your family should consider it
Decanting is the most widely discussed method for modifying an irrevocable trust, and the core concept is surprisingly straightforward despite the technical language that surrounds it. The process involves transferring assets from an existing trust into a brand-new trust with updated terms and at least one of the same beneficiaries.
The term refers to transferring trust assets from one legal vehicle to another, much like decanting wine from its original bottle into a clean container for serving.
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Some states, including Delaware, allow a trust to be decanted into another trust or back into the same trust with modified terms, Molly Bailey, Regional Fiduciary Advisor for Bank of America, explained.
The primary legal requirement for decanting is that your existing trustee must have the authority to distribute the trust principal, not merely the income generated by the trust assets.
If your trustee can only distribute income under the terms of the original agreement, decanting will not be available as a modification method for your trust.
Resolving investment disagreements through decanting
Families frequently use decanting to resolve disagreements over investment strategy between corporate trustees and family members seeking more direct control over the trust portfolio.
A family that insists on keeping all trust assets invested in a single company stock presents a real problem for any corporate trustee bound by fiduciary duty standards.
That kind of concentrated position is extremely difficult for a corporate trustee to justify as a prudent investment under standard fiduciary duty requirements, Bailey told the firm’s clients.
Decanting can create a formal legal structure that gives the family the investment control it wants without entirely removing professional trustee oversight from the arrangement.
Merger offers a path forward when decanting is not legally available for your trust
Not every irrevocable trust qualifies for decanting, and Bank of America wants families to understand that a second, powerful trust-modification technique is a viable alternative.
Trust merger allows one existing trust to be combined with another trust that has substantially similar terms, beneficiaries, and distribution provisions under state law.
The distinction between merger and decanting matters because decanting requires the trustee to have the specific legal authority to invade trust principal, which income-only trusts lack entirely.
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Merger can consolidate trusts with similar beneficial interests, update and adjust fiduciary powers and responsibilities, and reduce ongoing administrative expenses, Bailey explained to the firm’s fiduciary clients.
You should discuss both decanting and merger with your estate planning attorney to determine which method is legally available and strategically appropriate for your specific situation. Choosing the wrong modification method or applying it improperly can trigger unintended tax consequences that undermine the purpose of the trust modification.
Nonjudicial agreements give families the power to rewrite trust terms directly
Beyond decanting and merger, Bank of America highlights two additional methods that involve direct participation by both the trust grantor and the individual trust beneficiaries.
These approaches, called nonjudicial modification agreements and nonjudicial settlement agreements, can effect extensive changes to the terms of an irrevocable trust without any court involvement or judicial approval.
The process is much simpler if the grantor is still living and all beneficiaries are alive and have reached adulthood, Sarah Ziegler, Market Trust Executive for Bank of America, said. If the grantor has already passed away, a nonjudicial settlement agreement can still accomplish many of the same modification goals, though with several additional legal limitations.
Key restrictions on nonjudicial modifications
The most critical restriction is that neither type of agreement can alter any of the grantor’s original material purposes for establishing the trust, unless the grantor directly participates.
Both approaches also carry the risk of unintended tax consequences, which means you should never attempt a nonjudicial modification without the guidance of experienced legal counsel.
A seemingly minor change to trust language can trigger gift tax, income tax, or generation-skipping transfer tax liability that nobody involved in the process anticipated.
Every person with an interest in the trust needs to be notified about planned changes, including beneficiaries who may not even know the trust exists, Ziegler cautioned her clients.
The new $15 million exemption reshapes the case for reviewing older irrevocable trusts
The federal estate and gift tax exemption increased to $15 million per individual on January 1, 2026, under the One Big Beautiful Bill Act signed into law on July 4, 2025.
Married couples can now shield up to $30 million from federal estate and gift taxes combined, and the new exemption is permanently indexed for inflation going forward each year.
This change is significant because many existing irrevocable trusts were specifically designed to shelter assets under exemption thresholds that were a fraction of today’s levels. A trust created in 2008 or 2012 was built around an exemption of roughly $5 million per individual, which is less than one-third of the current $15 million amount.
Older trusts may now create tax problems instead of solving them
Older bypass or credit-shelter trusts may now produce a negative income tax result because assets inside them do not receive a stepped-up basis when the surviving spouse dies.
Your beneficiaries could face substantial capital gains taxes on appreciated trust assets that could have been avoided entirely with a restructured plan under current tax law.
The permanently higher exemption does not eliminate the need for estate planning, but it fundamentally changes the math for many families who created trusts under older, lower thresholds.
You should review any irrevocable trust created before 2018 with your estate attorney to determine whether its structure still serves your goals or quietly works against them.
Steps to take before your irrevocable trust becomes a liability instead of a shield
Bank of America recommends that every family holding an irrevocable trust take several concrete steps to evaluate whether the existing structure needs modification before problems surface.
The review process does not need to be overwhelming or prohibitively expensive, but it absolutely needs to happen sooner rather than later for most trust-holding families.
Your trust review checklist
- Pull out the original trust document and read it carefully, paying close attention to the distribution provisions, the trustee’s powers, and any language granting authority to modify or amend.
- Check whether your trust includes a trust protector provision, because a designated trust protector can have broad authority to adjust terms without court involvement or complex proceedings.
- Verify that your trust reflects current family circumstances, including marriages, divorces, births, or changes in beneficiary financial maturity that have happened since the trust was created.
- Confirm that the tax strategy embedded in the trust still makes practical sense under the current $15 million federal estate tax exemption, especially for trusts designed around lower thresholds.
- Schedule a joint meeting with your estate planning attorney and financial advisor so both professionals can evaluate the trust from legal and financial perspectives simultaneously.
The worst possible outcome is discovering a structural problem with your irrevocable trust only after it has already cost your family money in unnecessary taxes or legal disputes.
A proactive trust review costs far less than a reactive legal correction, and the tools to fix the most common trust problems are already available under current state and federal law.
Your estate plan should work for your family’s reality today, not for a set of circumstances that existed when the original documents were signed years or decades ago.
Trusts are really about who our clients are as people and what keeps them up at night, Ziegler said, urging families to make sure their trust still reflects their current lives.
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