A will is not a “set it and forget it” document. Families grow. Children are born, marriages happen, loved ones pass, homes are bought and sold, and the people you once named as guardians or executors may no longer be the right choice. When life changes, the will that protects your spouse and children needs to change with it. In New York, the two ways to update a will are a codicil (a formal amendment) or a brand-new will that revokes the old one.
This page explains, for families across New York — from New York City and Long Island to Westchester, the Hudson Valley, and Upstate — how amendments work, why a codicil must meet the same strict signing rules as the original will, and how to make changes without accidentally putting your spouse or children at risk. The guidance here is grounded in New York’s Estates, Powers and Trusts Law (EPTL), and it reflects how attorney Russel Morgan, Esq. and the team at Morgan Legal Group approach family-centered estate planning.
What Is a Codicil?
A codicil is a separate legal document that amends, adds to, or revokes part of an existing will without replacing the entire will. Think of it as an official addendum. The original will stays in force, and the codicil is read together with it, modifying only the provisions it specifically addresses.
Codicils were historically used for small, targeted changes — swapping out an executor, adjusting a single bequest, or updating a guardian nomination. The key thing every New York family must understand is this: a codicil is not a casual note or a handwritten scribble in the margin of your will. It is a will amendment, and under New York law it must be executed with the exact same formalities as a full will. A change written in pen on your existing will, or an unsigned memo, generally has no legal effect and can create confusion — or litigation — among the very family members you meant to protect.
New York’s Execution Rules Apply to Codicils
Because a codicil amends a will, it must satisfy the will-execution requirements of EPTL §3-2.1. New York courts treat a defective codicil the same way they treat a defective will: it may be denied admission to probate. For a family, that can mean a treasured update — leaving a larger share to a child with special needs, or removing an estranged relative — simply does not take effect.
Here are the core formalities your codicil must meet:
| Requirement (EPTL §3-2.1) | What It Means for Your Codicil |
|---|---|
| Signature at the end | The testator must sign at the end of the document. Anything written below the signature may be disregarded. Another person may sign in the testator’s presence and at their direction if needed. |
| Two attesting witnesses | At least two witnesses are required. Without two valid witnesses, the codicil fails. |
| 30-day signing window | Both witnesses must sign within one 30-day period. The law applies a rebuttable presumption that this 30-day requirement is met. |
| Publication | The testator must declare to the witnesses that the document is a codicil to their will. |
| Signing or acknowledgment | The testator must either sign in the witnesses’ presence or acknowledge their signature to each witness. |
| Witness duties | Witnesses sign at the testator’s request and add their residence addresses. |
In short, amending a will in New York is just as formal as making one. There are no shortcuts, and a “quick fix” done incorrectly can unravel the protection you intended for your family. For a deeper walk-through of these signing steps, see our will execution page and our overview of New York will requirements.
Codicil or a New Will? How Families Should Decide
Modern estate planning has largely moved away from stacking multiple codicils onto an old will. Decades ago, when wills were retyped on typewriters, a short codicil saved effort. Today, with documents prepared and stored digitally, attorneys often recommend a fresh will instead of a codicil — especially when the changes are significant.
Use this family-focused guide to think it through:
- A codicil may make sense when the change is small and self-contained — for example, naming a new alternate executor, updating a single charitable gift, or correcting a misspelled name.
- A new will is usually better when you are changing who inherits, adjusting the shares left to your spouse or children, naming a new guardian for minor children, restructuring around a new marriage or divorce, or making several changes at once.
Why families often prefer a new will: A codicil must always be read alongside the original. If the two documents conflict, or if a page goes missing, your loved ones can be left arguing over your true intent in Surrogate’s Court — exactly the family conflict good planning is meant to prevent. A single, clean, current will leaves no ambiguity. It speaks with one voice for your spouse and children.
Whichever route you choose, the document only takes effect at death and must be admitted to probate in the Surrogate’s Court. Planning ahead with a coherent document makes that process smoother for the family you leave behind. Start with our will drafting overview to see how the pieces fit together.
Common Family Reasons to Amend a Will
Life events are the usual triggers. For families, the most important reasons to revisit a will include:
- Marriage or remarriage. A new spouse changes the entire picture, including New York’s spousal protections (more on that below).
- Birth or adoption of a child or grandchild. New children should be provided for, and guardianship choices may need updating.
- Divorce or separation. You may want to remove a former spouse as a beneficiary, executor, or fiduciary.
- Death of a beneficiary, executor, or guardian. If the person you named has passed, naming a successor keeps your plan from falling back on default rules.
- A child reaching adulthood. Trust arrangements or staggered distributions for young children may no longer be needed — or may need to be added.
- Significant changes in assets. A new home, business, or inheritance may call for new bequests.
- Moving to or from New York. A will valid elsewhere should be reviewed against New York’s EPTL §3-2.1 standards.
Protecting Your Spouse: The Right of Election
Families sometimes assume a will can fully control where everything goes. In New York, that is not entirely true when it comes to a surviving spouse. Under the spousal right of election (EPTL 5-1.1-A), a surviving spouse can claim a minimum statutory share of the estate regardless of what the will says.
This matters enormously when you amend a will. If you draft a codicil intending to reduce your spouse’s share — perhaps in a blended-family situation — that codicil cannot simply override the right of election. A surviving spouse who is left less than the statutory minimum can elect against the will and claim their guaranteed portion. Smart family planning anticipates this so that your true wishes for your children and your spouse are honored without triggering a costly election dispute. This is one of the most common places where a do-it-yourself amendment goes wrong.
What Happens If You Never Update — or Never Make — a Will
If an outdated will no longer reflects your family, the consequences fall on your loved ones. An estranged relative might still inherit, or a deceased person’s share might lapse in ways you never intended.
If there is no valid will at all, New York’s intestacy rules under EPTL Article 4 take over and distribute your property to your next of kin according to a fixed statutory formula — not according to your wishes. Intestacy ignores stepchildren, unmarried partners, friends, and charities entirely, and it can split assets among relatives in ways that leave a surviving spouse with less than a family expected. Our intestacy and dying without a will page explains how that distribution works.
A Note on “Living Wills” — A Different Document
Families often confuse two very different documents. A will (the kind a codicil amends) directs who receives your property after death and is admitted to probate in Surrogate’s Court. A living will is a completely separate health-care and end-of-life document that states your wishes about medical treatment while you are alive. A codicil amends your property will — it has nothing to do with your living will. If you want to learn about end-of-life directives, see our living will page, and keep both documents current as your family’s needs evolve.
How Morgan Legal Group Helps Families Amend Their Wills
At Morgan Legal Group, attorney Russel Morgan, Esq. helps New York families decide whether a codicil or a new will is the right tool — and then executes it correctly under EPTL §3-2.1 so it will stand up in Surrogate’s Court. We look at the whole family picture: spousal protections, guardianship for minor children, successor executors, and how each change affects everyone you love. We serve families statewide, including New York City, Long Island, Westchester, the Hudson Valley, and Upstate New York.
When your life changes, your plan should too. Schedule a consultation with Russel Morgan, Esq. to review and update your will so it continues to protect the people who matter most.
Frequently Asked Questions
Can I just cross out or handwrite a change on my existing will?
No. Marking up your will or adding an unsigned note generally has no legal effect in New York and can create serious confusion for your family. Any change must be made through a properly executed codicil or a new will that meets the formalities of EPTL §3-2.1, including signing at the end and at least two attesting witnesses.
Does a codicil need witnesses like a full will?
Yes. A codicil is held to the same execution standard as a will under EPTL §3-2.1. That means at least two attesting witnesses, both signing within one 30-day period, with the testator signing at the end and declaring the document to be a codicil to their will.
Is it better to make a codicil or a whole new will?
For small, isolated changes, a codicil can work. For anything involving who inherits, the shares left to your spouse or children, guardianship of minors, or multiple changes at once, families are usually better served by a new will that revokes the old one. A single clean document avoids conflicting instructions and reduces the risk of disputes in Surrogate’s Court.
Can a codicil reduce my spouse’s inheritance?
Not below the statutory minimum. New York’s spousal right of election (EPTL 5-1.1-A) allows a surviving spouse to claim a guaranteed minimum share of the estate regardless of the will or codicil. Any amendment that tries to cut a spouse out should be planned carefully with an attorney to avoid a costly election dispute.
When does my updated will actually take effect?
A will or codicil only takes effect at death. It must then be admitted to probate in the Surrogate’s Court before assets are distributed. Keeping your document current and properly executed makes that process far easier on the family you leave behind.
Further reading from Morgan Legal Group: key things to know about writing a will.