Beneficiary Blueprints
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Wills & Trusts

Codicils Versus Rewriting The Whole Will

A codicil amends a will without replacing it, which sounds efficient until a probate court has to read several documents together and decide what the latest one actually changed.

Senior couple signing real estate documents with an agent in a modern office setting.
Senior couple signing real estate documents with an agent in a modern office setting. · Photo via Pexels
Legal information notice. Educational information about planning — not legal advice. Read the full disclaimer.

A will can be amended by a separate document rather than replaced. That approach made obvious sense when documents were retyped by hand, and it survives with consequences worth understanding.

What a codicil is doing

A codicil is a supplementary instrument that changes part of an existing will while leaving the rest in force, and it generally has to be executed with the same formalities as the will itself.

It might substitute an executor, adjust a single gift, or add a beneficiary, and it works by reference rather than by restating the whole plan.

Because it depends on the original, a codicil is only as findable as the will it amends, and the two must be read together to know the current arrangement.

Where the approach causes trouble

Several codicils accumulated over years produce a plan that exists across multiple pieces of paper, and reconciling them is a task for whoever administers the estate.

Ambiguity arises when a codicil changes one clause in a way that interacts with others the drafter did not revisit, leaving two provisions pointing in different directions.

If one document is lost while the others survive, the court is left with an incomplete picture and a dispute about what the missing instrument said.

Why restatement is now the common choice

Producing a fresh will that revokes all previous instruments yields a single current document, which is easier to read, easier to store and harder to argue about.

Word processing removed the cost advantage codicils once had, so the practical case for amending rather than replacing has largely disappeared for ordinary changes.

A new will also creates an opportunity to review everything else that has drifted, including beneficiary designations that sit outside the will entirely.

Revocation has to be handled deliberately

A new will typically contains language revoking earlier wills and codicils, and destroying superseded originals reduces the chance that an old version resurfaces.

Copies circulating among family members create their own confusion, since a relative holding an outdated version may believe it is current and object accordingly.

Marking or physically destroying a will as a method of revocation carries state-specific requirements and is easy to do in a way that produces litigation rather than clarity.

Where to get direction

Whether a codicil is appropriate, how it must be executed and how revocation is accomplished are governed by state law and change over time.

An estate planning attorney can say whether a change is small enough to amend or significant enough to justify a replacement document.

The decision is rarely close: for most people the cost difference is small and the reduction in later ambiguity is substantial.

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Harriet Cole
Probate & Administration, Beneficiary Blueprints

Harriet has administered estates from the straightforward to the litigated, and writes for the executor who did not volunteer.

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