To change your will in New York with a codicil, you prepare a short written amendment that identifies the original will, states the specific changes you want, and is then signed and witnessed under the exact same formalities required for a will under New York Estates, Powers and Trusts Law (EPTL) §3-2.1 — at least two attesting witnesses, your signature at the end, publication (declaring it to be an amendment to your will), and the witnesses signing within one 30-day period. That is the entire mechanism. A codicil does not replace your will; it modifies it. The practical questions most people actually have are how long it takes, what it costs, and whether a codicil is even the right tool versus simply re-doing the will. This guide walks through all of that, New York–specifically.
What a Codicil Actually Is
A codicil is a separate legal document that amends an existing will rather than revoking it. Think of it as an official addendum. The original will stays in force, and the codicil layers changes on top — adding a beneficiary, changing an executor, adjusting a specific bequest, or correcting a name.
Because a codicil and the will it amends are read together at death, both documents must survive probate together in the Surrogate’s Court. A will (and any codicil) takes effect only when you die; it does nothing while you are alive. (Note: a codicil to a property will is entirely different from a living will, which is a health-care directive — the two are unrelated documents.)
The Most Important Rule: A Codicil Must Be Executed Like a Will
This is where most do-it-yourself amendments fail. New York does not treat a codicil casually. Under EPTL §3-2.1, a codicil must satisfy the same execution formalities as the original will:
- You must sign at the end of the codicil (or another person may sign in your presence and at your direction).
- There must be at least two attesting witnesses.
- You must declare the document to be an amendment to your will (publication).
- You must sign in the witnesses’ presence or acknowledge your signature to each of them.
- The witnesses sign at your request and add their residence addresses.
- Both witnesses must sign within one 30-day period (New York applies a rebuttable presumption that the 30-day requirement was met).
Crossing out a line in your existing will, writing in the margin, or stapling on a typed note does not create a valid codicil. An improperly executed codicil can be thrown out — and worse, a botched attempt can cast doubt on the will itself. If you want the full execution checklist, see our pages on New York will requirements and will execution.
How the Process Works, Step by Step
| Step | What Happens | Typical Time |
|---|---|---|
| 1. Review the existing will | Confirm the change you want and that the will is valid | Same day |
| 2. Draft the codicil | Identify the will by date, state the specific amendments | 1–3 business days |
| 3. Review and approve | You read and confirm the language | 1–2 days |
| 4. Execution ceremony | Sign before two witnesses with the proper formalities | About 30–45 minutes |
| 5. Safe storage | Store the codicil with the original will | Same day |
The drafting itself is fast. Most simple codicils are ready within a few business days, and the signing ceremony takes well under an hour. The real timeline depends on how quickly you finalize the wording and schedule the execution.
What Drives the Cost
We do not quote flat fees here because the right number depends on your situation, but it helps to understand what moves the price:
- Complexity of the change. Swapping an executor is simpler than restructuring multiple bequests or adding a trust provision.
- Whether it stays a true codicil. If your change touches several clauses, redrafting the whole will is often cleaner — and a single amendment trying to patch many provisions can cost more in confusion than a fresh will.
- The execution ceremony. Proper witnessing (and, ideally, a self-proving affidavit) is part of the job, not an extra.
- Review of the original will. Sometimes the existing will has its own problems that surface during review.
A useful rule of thumb: one or two small changes → codicil; several changes → new will. Once you are amending three or more provisions, a clean replacement will is usually faster to read in probate and less likely to create contradictions between documents.
Codicil vs. New Will: Which One?
| Situation | Better Tool |
|---|---|
| Change one executor or guardian | Codicil |
| Adjust a single dollar gift or beneficiary | Codicil |
| Fix a misspelled name | Codicil |
| Multiple beneficiary changes | New will |
| Major life event (marriage, divorce, new child) | New will |
| The original will is old or unclear | New will |
Keep in mind that New York’s spousal right of election under EPTL 5-1.1-A still applies no matter how you amend: a surviving spouse can claim a statutory minimum share regardless of what your will or codicil says. A codicil cannot be used to disinherit a spouse below that floor. And if you have no valid will or codicil at all, intestacy under EPTL Article 4 decides who inherits — the state’s default, not your wishes.
Common Mistakes That Void a Codicil
- Signing without two witnesses, or witnesses who never saw you sign or acknowledge.
- Witnesses signing outside the 30-day window.
- Failing to declare the document is an amendment to your will.
- Storing the codicil separately so it is lost or overlooked at probate.
- Using a codicil to make so many changes that it conflicts with the original will.
Frequently Asked Questions
Do I need a lawyer to make a codicil in New York?
Not legally required, but strongly advisable. The execution formalities under EPTL §3-2.1 are strict, and a defective codicil can be rejected by the Surrogate’s Court — sometimes endangering the will too.
How many witnesses does a codicil need in New York?
At least two attesting witnesses, exactly as a will requires, and both must sign within one 30-day period.
Can I just handwrite changes on my existing will?
No. Marking up or writing in the margins of a signed will does not create a valid amendment and can create doubt about the entire document. A codicil must be separately executed with full formalities.
When does a codicil take effect?
Only at your death, alongside the original will, when both are admitted to probate in the Surrogate’s Court. A codicil changes nothing while you are alive, and you can revoke or replace it at any time before then.
Make the Change the Right Way
A codicil is a powerful, efficient tool — but only when it is drafted and executed correctly under New York law. Morgan Legal Group and Russel Morgan, Esq. help New Yorkers statewide decide whether a codicil or a new will is the right move, and then handle the execution so it stands up in the Surrogate’s Court.
Ready to update your will? Schedule a 30-minute consultation with Russel Morgan, Esq.
Further reading from Morgan Legal Group: the last will and testament in New York.