A client recently sat across from my desk in our Manhattan office, sliding a heavily marked-up binder toward me. It was her revocable living trust, originally drafted in 2018. She had crossed out her former son-in-law’s name with a red pen, written her new grandson’s name in the margin, and proudly signed her initials next to the ink. “I made a codicil to my trust,” she told me, assuming the matter was settled. I had to deliver the hard news: legally, she had done no such thing.
When families attempt to update their estate plans, they often rely on terminology they have heard in passing. The phrase “codicil to a trust” is one of the most common misnomers in my practice. In New York, the law draws a hard line between the instruments used to update a Last Will and Testament and the instruments used to update a lifetime trust. Blurring these lines does not just create confusion—it routinely invalidates the creator’s final wishes and invites entirely avoidable litigation in Surrogate’s Court.
Stewardship.
That is what estate planning is fundamentally about. Proper stewardship demands precision. If your family structure or financial footprint has changed, you need to understand the exact legal mechanisms required to modify your documents.
The Legal Distinction: Codicils vs. Amendments
A codicil amends a Will. A trust requires an Amendment or a Restatement.
A codicil is a testamentary instrument. It is a supplement to an existing Last Will and Testament, used to add, explain, modify, or revoke specific provisions of that Will. Because a Will only takes effect upon your death and must pass through the probate process, a codicil is subject to the exact same rigorous execution standards as the original Will.
A trust, on the other hand, is a separate legal entity that operates outside of the probate system. You cannot attach a codicil to a trust. Instead, modifying a trust requires a formal Trust Amendment. This is a deliberate, stand-alone legal document that references the original trust agreement and specifically overrides or alters certain clauses. When we represent families seeking to change their trustee designations or adjust beneficiary percentages, we are drafting amendments, never codicils.
The Strict Formalities of EPTL § 7-1.17
You cannot amend a New York trust by sending an email to your attorney, leaving a voicenote for your children, or writing in the margins of your binder. The state requires strict adherence to statutory formalities to prevent fraud and ensure that any changes to your legacy are entirely intentional.
Under New York Estates, Powers and Trusts Law (EPTL) § 7-1.17, amending a lifetime trust requires a highly specific procedure. The amendment must be in writing. It must be executed by the creator of the trust, and if the creator is not the sole trustee, it must also be executed by at least one trustee. These signatures cannot simply be jotted down at the kitchen table. The document must be acknowledged in the same manner required for the recording of a deed to real property—meaning it must be formally notarized—or it must be executed in the presence of two witnesses who then sign the document.
If an amendment fails to meet the precise standards of EPTL § 7-1.17, it is legally void. The successor trustee will be legally bound by their fiduciary duty to ignore your attempted updates and distribute the assets exactly as dictated by the original, outdated trust document.
Trust Amendment vs. Trust Restatement
Once we establish that an amendment is the correct vehicle, we must decide on the scope. For minor, isolated updates, a simple Trust Amendment is sufficient. We typically draft a standard amendment when a client needs to:
- Name a new successor trustee after a death or relocation.
- Change the specific age at which a beneficiary receives their final distribution.
- Add a newly acquired piece of real estate to the trust’s schedule of assets.
However, if the changes are structural or sweeping—such as a complete overhaul of the distribution scheme following a divorce, or the addition of complex generational wealth transfer provisions—a Trust Restatement is the prudent choice.
A Restatement completely replaces the body of the original trust with updated text, while preserving the original name and date of the trust. This is highly advantageous. If you execute four separate amendments over ten years, your successor trustee eventually has to read five different documents side-by-side to figure out what to do. A Restatement wipes the slate clean, providing one unified document that serves as the definitive custodian of your intentions.
Why We Rarely Draft Codicils Anymore
Even when a client actually wants to update their Will rather than their trust, the traditional codicil is largely a relic of the typewriter era. Decades ago, if a client wanted to change a single paragraph in a twenty-page Will, retyping the entire document was a laborious and expensive task. The codicil was a practical shortcut.
Today, drafting a new Will is remarkably efficient. More importantly, relying on a codicil introduces unnecessary risk. If your original Will leaves your estate to three children, and you write a codicil disinheriting one of them, both documents must be submitted to Surrogate’s Court. Under SCPA § 1410, that disinherited child has standing to file formal objections. They will see exactly what you did—and when you did it—which frequently triggers resentment and Will contests. If the single-page codicil is lost, the court will simply admit the original Will to probate, completely nullifying your final wishes.
Whenever you experience a major life event, your estate documents should be evaluated as a complete system. Slapping a patch on an outdated document is rarely the safest way to protect your family.
If your family dynamics have shifted, do not attempt to alter your legal documents with a pen. Schedule a 30-minute review of your existing trust or Will with our office to determine whether an amendment, a restatement, or a completely new draft is the proper next step.
