A client came into my Manhattan office last month with a will we had prepared for him over a decade ago. Since then, he’d had another child, sold a business, and purchased a family property on Long Island. He’d made handwritten notes in the margins of the original will to reflect these changes. “Is this enough?” he asked. The simple answer is no. Those notes have no legal effect and would only create confusion for his family and the Surrogate’s Court.
His question highlights a common reality: life changes, and estate plans must adapt. The traditional tool for a minor update to a will is a document called a codicil. While it has its uses, it is a tool I have become increasingly cautious about recommending.
The Codicil: A Formal Amendment, Not a Quick Note
A codicil is not a casual update. It is a separate legal document that modifies, amends, or revokes specific parts of an existing last will and testament. It is not a Post-it note, a marked-up copy, or a letter to your executor. For a codicil to be valid in New York, it must be executed with the exact same legal formalities as the will it amends.
Under New York’s Estates, Powers and Trusts Law (EPTL) § 3-2.1, the execution of a will requires the testator to sign the document in the presence of two witnesses, who must also sign their names. The same ceremony is required for a codicil. You cannot simply write a new provision, sign it, and attach it to your will. Failure to observe these formalities renders the codicil invalid, and the court will disregard it.
The purpose of a codicil is to make a specific, isolated change. Perhaps you need to name a new executor because the original one has passed away, or you want to add a single, small cash bequest to a charity. For these narrow purposes, a codicil can function as intended. For anything more significant, it introduces unnecessary risk.
Why We Often Advise Against Codicils
I have seen codicils become the source of bitter family disputes. They may seem like a simple fix, but they often create more problems than they solve. This is why we so often guide clients away from them.
First, codicils create ambiguity. You now have two or more documents—the original will and the codicil—that must be read together. If the language of the codicil is not perfectly harmonized with the will, it can lead to contradictions. For example, a codicil might gift a specific stock portfolio to a nephew, but what if the original will’s residuary clause was meant to pass all investments to a spouse? The executor is now left to ask the court for guidance, which costs the estate time and money.
Second, there is the physical risk of separation. A codicil is a separate piece of paper. If it is misplaced, lost, or becomes detached from the will, your executor may never know it existed. When the will is presented for probate, the court will only act on the document it has. The original, unamended terms will be enforced, and your intended changes will be lost.
Finally, a codicil spotlights a controversial change, making a will contest more likely. Imagine a will that treats three children equally. Years later, an elderly parent executes a codicil that disinherits one child entirely. That codicil becomes a focal point for a legal challenge based on undue influence or lack of capacity. It draws a target on the change, inviting litigation that a cleanly drafted new will might have avoided.
The Cleaner Path: Restating Your Will
Decades ago, when wills were typed on manual typewriters, redoing the entire document was a burden. A codicil made practical sense. That is no longer the case. The cleaner, safer, and more prudent path is to execute an entirely new will.
A new will allows us to integrate all your desired changes into a single, cohesive document. It stands on its own. A new will also contains standard language that explicitly revokes all prior wills and codicils. This act of revocation eliminates any confusion about which document reflects your final wishes. There is only one controlling document for the Surrogate’s Court to interpret.
This approach is an act of stewardship. It provides your chosen executor and your beneficiaries with a clear, unambiguous roadmap. By consolidating your wishes into one instrument, you minimize the potential for conflict and honor your duty to leave behind a legacy of clarity, not a puzzle for your family to solve.
If your circumstances have changed since you signed your will, your plan must reflect your current intentions. Instead of patching an old document, a full review is the prudent course. Schedule a confidential review of your existing estate plan with my office, and we can determine if a new will is the most deliberate and effective way to protect your family.
