Can You Change or Decant an Irrevocable Trust in New York?

Yes — and that surprises most people. While an irrevocable trust is, by design, intended to be permanent and “cannot be amended” by the grantor at will, New York law does provide limited, well-defined pathways to change one. You can sometimes modify an irrevocable trust by the consent of all interested parties, by a court proceeding, or — most powerfully — by decanting, a process where a trustee pours the assets of an old trust into a new trust with better terms. The word “irrevocable” does not mean “frozen forever.” It means you cannot simply tear it up the way the grantor of a revocable trust can. Below, we answer the questions New Yorkers most often ask Morgan Legal Group about changing these trusts.

Why Are Irrevocable Trusts Hard to Change in the First Place?

New York trusts are governed by the Estates, Powers and Trusts Law (EPTL) Article 7. When a grantor creates an irrevocable trust, they intentionally give up control over the assets. That surrender of control is the entire point — it is what allows the trust to deliver benefits a revocable trust cannot:

• Estate-tax reduction — assets properly transferred to an irrevocable trust can be removed from the grantor’s taxable estate.
• Asset protection — assets held outside the grantor’s name are shielded from many future creditors.
• Medicaid planning — an irrevocable trust can help a person qualify for long-term-care Medicaid, subject to the 5-year look-back period.

If the grantor could amend or revoke the trust whenever they wished, none of these protections would hold — the IRS, creditors, and Medicaid would all treat the assets as still belonging to the grantor. So the rigidity is a feature, not a flaw. The trade-off is flexibility, which is exactly why the change mechanisms below exist as carefully limited exceptions.

To understand how this fits into the broader planning picture, see our overview of trusts in New York and how an irrevocable trust is structured.

What Are the Ways to Change an Irrevocable Trust in New York?

There is no single switch. Instead, New York recognizes several distinct routes, each with its own requirements. The right one depends on what you are trying to fix and who needs to agree.

Method	How it works	When it’s used
Grantor + beneficiary consent	The grantor, if living, joins with all beneficiaries to amend or revoke the trust by written, acknowledged consent.	When the grantor is alive and every beneficiary can be identified and agrees.
Court modification	A petition to the court asks a judge to modify or terminate the trust due to changed circumstances or an unanticipated purpose.	When consent cannot be obtained or a judicial order is needed for tax or creditor certainty.
Decanting	The trustee distributes assets from the existing trust into a new trust with updated terms.	When the trust grants the trustee discretion and the grantor is unavailable or unwilling to consent.
Trust-protector / amendment power	Some modern trusts name a “trust protector” with limited authority to make defined changes.	When the original drafting attorney built in flexibility from the start.

Decanting: The Most Powerful Tool

Decanting deserves special attention because it does not require the grantor or the beneficiaries to sign off. Instead, it relies on the trustee’s discretionary authority to make distributions. If the trustee has discretion over principal, New York law allows that trustee to “decant” — to exercise that discretion by paying the assets over to a new trust with improved provisions, rather than directly to a beneficiary.

Decanting is commonly used to:

• Fix drafting errors or ambiguous language.
• Update administrative provisions (for example, changing trustee succession or governing situs).
• Add or refine supplemental needs protections so a disabled beneficiary does not lose Medicaid or SSI — see our page on the special needs trust and EPTL 7-1.12.
• Extend the duration or change distribution timing within the limits the original trust allows.

Decanting has limits. A trustee generally cannot use it to add a brand-new beneficiary who was excluded from the original trust, and the trustee’s overriding fiduciary duties — the prudent-investor standard under EPTL Article 11-A, the duty of loyalty, and the duty to account — always apply. A trustee who decants for an improper purpose can be held personally accountable.

How Is This Different From a Revocable Trust?

This is the most common point of confusion, so let’s be precise. A revocable living trust is the opposite of an irrevocable one in nearly every respect that matters here:

• The grantor keeps full control and may amend or revoke it at any time, for any reason.
• Its primary benefits are avoiding probate, privacy, and seamless incapacity management — not tax savings.
• It does not reduce estate tax, because the assets remain inside the grantor’s taxable estate.

If your goal was flexibility all along, a revocable trust may have been the better instrument — learn more on our revocable living trust page. But once an irrevocable trust is in place, you are working within the change mechanisms above, not a simple amendment.

It is also worth remembering why people choose trusts over wills at all. A trust avoids probate and stays private, while a will is a public document that must be probated in the Surrogate’s Court. Our trust vs. will comparison breaks this down in detail.

Does Changing an Irrevocable Trust Affect Estate Taxes?

It can — and this is where careful counsel matters most. New York imposes its own estate tax separate from the federal system. For 2026, the New York basic exclusion amount is $7,350,000. New York also has a notorious “cliff”: an estate that exceeds 105% of the exclusion — $7,717,500 — loses the entire exemption, not just the excess. Estates near that threshold lose far more than a dollar-for-dollar amount once they cross it.

If a modification or decanting causes assets to be pulled back into the grantor’s taxable estate — or jeopardizes the trust’s qualification for estate-tax, creditor, or Medicaid benefits — the consequences can be severe and irreversible. Never change an irrevocable trust without a tax and benefits analysis first. Our trust administration team coordinates these moves so the original protections survive the change.

Frequently Asked Questions

Can the grantor alone change an irrevocable trust?
Generally no. The grantor cannot unilaterally amend or revoke it — that is what makes it irrevocable. Change typically requires the consent of all beneficiaries, a court order, or a trustee’s properly exercised decanting power.

What is “decanting” in plain English?
Decanting means a trustee pours the assets of an old irrevocable trust into a new trust with better terms, using the trustee’s discretionary distribution authority. It does not require the grantor’s signature, but the trustee must respect fiduciary duties under EPTL Article 11-A.

Will changing my irrevocable trust ruin my Medicaid planning?
It can if done carelessly. An irrevocable trust used for Medicaid is subject to the 5-year look-back. Any modification should be reviewed to confirm it does not restart that clock or return assets to your control.

Do I need to go to court to modify an irrevocable trust?
Not always. If the grantor is living and all beneficiaries consent in writing, or if the trust permits decanting, you may avoid court entirely. A court petition is reserved for situations where consent is impossible or a judicial order is needed for certainty.

Speak With a New York Trusts Attorney

Changing an irrevocable trust is possible, but the wrong move can unravel years of estate-tax, asset-protection, or Medicaid planning. The right method — consent, court modification, or decanting — depends on the exact language of your trust and your goals. Russel Morgan, Esq. and the team at Morgan Legal Group guide New York families through these decisions every day, statewide.

Schedule your confidential consultation with Russel Morgan, Esq. →