A divorce, remarriage, new child, or change in executor can quickly make an existing will outdated. The problem is that many Texans assume they must completely rewrite their will just to make one small change.
In some situations, a codicil allows a person to legally update specific parts of a will without starting over. However, using a codicil in the wrong situation may create conflicting instructions, especially when multiple amendments exist.
Understanding when a codicil works, when a new will is safer, and how Texas law treats will amendments can help prevent costly mistakes later.
What Is a Codicil?

Source: legalandgeneral.com
A codicil is an added writing to a will that modifies or amends (in whole or in part) an existing document and confirms that everything else is still valid.
A codicil is not a complete replacement for the original will, but instead amends or changes particular terms in the body of the will and preserves it as a whole.
For example, if a named executor is unable to serve as executor for the decedent’s estate, the decedent can file a codicil to have the named executor replaced with a different person without changing the rest of the estate’s distributions.
When a Codicil Makes Sense
A codicil is often used when someone wants to make a limited update to an existing will without changing the overall structure of the document. A codicil is usually used when the original will still work overall, but one specific update is needed.
Common situations where a codicil may make sense include:
Changing an Executor
If the person originally named as executor is no longer able or willing to serve, a codicil can be used to appoint a new executor without rewriting the rest of the will.
Correcting Names or Information
Small corrections, such as fixing the spelling of a beneficiary’s name or updating outdated personal information, are often handled through a codicil.
Updating a Specific Gift
A codicil may also be used to add, remove, or revise a small personal or financial gift while leaving the remainder of the estate plan unchanged.
Minor Beneficiary Changes
In some cases, a codicil can help adjust a limited part of an inheritance arrangement, such as replacing one beneficiary with another for a specific asset.
Reflecting Small Life Changes
Events such as a beneficiary moving away, an executor passing away, or a specific asset no longer being owned may lead to smaller updates that can sometimes be addressed through a codicil instead of a completely new will.
In these situations, a codicil is often used because the changes are narrow and do not substantially alter the overall intent of the estate plan.
When a Codicil May Create Probate Problems
Although codicils can work well for limited updates, they can also create confusion when used too frequently or when major changes are involved. During probate, the court must review the original will together with every codicil attached to it. If the documents conflict or contain unclear instructions, the probate process can become more complicated.
Multiple Amendments
Using several codicils over time can make an estate plan harder to interpret. When multiple amendments exist, executors and courts may need to compare several documents together to determine which instructions apply.
Conflicting Instructions
Problems may arise when a codicil changes part of a will but does not clearly explain how it affects earlier instructions. Even small wording differences can create uncertainty about what the person actually meant.
Probate Confusion
Unclear amendments may delay probate if the court must spend additional time interpreting how the codicil and original will work together. In some situations, inconsistent documents can increase legal costs and slow estate distribution.
Family Disputes
Ambiguous language or conflicting amendments can sometimes lead to disagreements among beneficiaries or family members, especially when different people interpret the documents differently.
Unclear or Incomplete Language
A codicil should clearly identify the original will, explain the exact changes being made, and confirm that the remaining provisions still apply. Vague language or incomplete instructions can create uncertainty during probate and make the estate plan more difficult to administer.
When major updates are needed or several changes have already been made over time, many people choose to replace the original will entirely instead of continuing to add codicils.
Common Situations Where Texans Use a Codicil
Life changes are one of the main reasons people revisit their estate plans. In Texas, codicils are often used when someone wants to make a limited update to an existing will without completely rewriting the document.
Some common situations include:
Divorce or Remarriage
After a divorce or remarriage, many people choose to update beneficiary information, inheritance instructions, or executor appointments to reflect changes within the family.
Birth of a Child or Grandchild
The arrival of a child or grandchild often leads families to update inheritance plans, add new beneficiaries, or leave specific gifts to younger family members.
Death or Incapacity of an Executor
If the person originally named as executor is no longer able to serve, a codicil may be used to appoint a replacement without changing the rest of the will.
Changes Involving Beneficiaries
A codicil may also help address smaller beneficiary-related updates, such as correcting names, removing outdated information, or adjusting a specific inheritance arrangement.
Sale or Loss of an Asset
When property or assets named in a will are sold, transferred, or no longer owned, some people use a codicil to clarify how the change affects the estate plan.
For smaller updates, a codicil can help avoid rewriting the entire will.
Codicil vs New Will in Texas
| Codicil | New Will |
|---|---|
| Small changes | Major changes |
| Keeps the original will | Replaces original |
| Faster updates | Cleaner overall |
| Can create confusion if overused | Easier probate interpretation |
When a New Will Is Usually the Better Option

In many instances where significant changes need to be made to a current will, people often choose to draft a new will rather than amend it through a codicil. Changing your will by creating a new will is often appropriate when you need to:
1. Change multiple details in your current will.
2. Experience major life events that significantly impact your financial or familial situation;
3. Already have many amendments to your will that you have created through a codicil;
For example, major changes involving property distribution, beneficiaries, or executors can become difficult to manage through multiple codicils alone. Multiple codicils can create probate confusion when family members, executors, or courts must interpret several amendments together. In some situations, conflicting instructions may delay estate distribution or increase disputes among beneficiaries. When several major updates are needed, creating a new will is often clearer and easier to interpret during probate.
The Way a Codicil is Usually Prepared
To create a codicil to your existing will, it’s best to first understand how codicils are generally created.
Identify the Original Will: The original will must be identified by its date to identify which document the codicil is amending.
Clearly State the Changes: The specific changes being made by each codicil must be described with precision. Codicils should refer to the section of the will being amended and describe how the section has been modified.
For example, if a gift has been revoked and replaced with a different gift, then that should be noted on the codicil.
Confirm the Effect of the Remaining Provisions of the Will: Most codicils contain language that confirms that all of the remaining provisions of the original will remain in effect; therefore, codicils help preserve the original will’s intent and protect the testator against any unintentional changes.
Properly Execute the Codicil: A codicil must be executed with the same formalities as a will. These formalities help show that the amendment reflects the testator’s intent. If execution steps are unclear or incomplete, the court may have difficulty determining how the amendment should be applied during probate.
How Codicils Are Signed and Witnessed
Generally speaking, most state laws require that a codicil follow the same procedure for signing and witnessing as would a will:
1. The testator will sign the codicil.
2. The witnesses will observe the testator’s signature.
3. The witnesses will also sign the codicil.
The above procedures provide a basis for the validity and intent of the codicil. If these procedures are not followed, the court may have difficulty confirming that the codicil reflects the testator’s intent during probate. The rules governing codicils vary from state to state.
For general information on statutes regarding wills, see: Texas Estates Code – Wills.
Texas-Specific Codicil Requirements
State law provides the regulations for execution and validity when it comes to codicils in Texas. The following is a general overview of those laws:
• The testator must sign the codicil;
• For most codicils, witnesses are required unless the codicil qualifies as a valid handwritten amendment (see below);
• Many codicils also include a self-proving affidavit, which helps simplify probate by reducing the need for later witness testimony.
• A will amendment in Texas is often made self-proving, which means that the witnesses sign an affidavit at the same time as the testator and, therefore, may lessen the need for witness testimony during probate.
Many Texans looking to create a codicil will seek forms available online; however, it should be noted that using a form alone does not ensure that the codicil is clear, properly executed, or fully consistent with the original will.
How Codicils Affect Probate

The will and codicil will be considered together as a single set of directions during the probate process by the court.
Typical issues that arise during this process are:
● Ambiguity between the Will and Codicils
● Multiple Codicils for the Same Item in the Will
● Disputes about the Validity of the Execution
During probate, the court reviews the will and any codicils together. If a codicil uses unclear language or conflicts with the original will, the court may need to interpret how the documents work together. Clear drafting and consistent execution help reduce confusion during this process.
Mistakes That Can Make a Codicil Problematic
A codicil is intended to clarify or update a will, but problems can arise when the amendment is incomplete, unclear, or not properly executed. During probate, courts must review the original will and every codicil together. Even small mistakes can create confusion about the actual intent of the person creating the will.
Some of the most common issues include:
Vague or Unclear Wording
A codicil should clearly explain what part of the will is being changed and how the amendment affects the original document. Vague language can create uncertainty when executors or beneficiaries interpret the instructions differently during probate.
Unsigned Codicils
A codicil generally must be signed according to state execution requirements. If the amendment is unsigned or incomplete, the court may question whether the changes were actually intended to become part of the will.
Conflicting Amendments
Problems often arise when multiple codicils modify the same section of a will over time. Conflicting instructions can make it difficult for courts and executors to determine which amendment controls the estate plan.
Missing Witnesses
In many situations, codicils require witnesses just like a will. Missing witness signatures or improper execution procedures may create challenges during probate and increase the risk of disputes over validity.
Storing the Codicil Separately From the Will
A codicil should generally be stored with the original will. When amendments are kept separately, executors or family members may not realize the codicil exists, which can create confusion during estate administration. When several mistakes or amendments begin to accumulate, many people choose to replace the original will entirely to keep estate instructions clearer and easier to interpret.
Storage, Updates, and Recordkeeping
Following signing, a codicil is to be placed with the original will. Having documents together allows them to be viewed as a whole.
Common practices include:
● The codicil should be attached to the will.
● Keep the two documents in a secure place.
● Educating the executor that there is an amendment.
If the updates are frequent, it can be better to replace the whole will completely to provide more clarity.
Codicil vs Other Will Amendment
There are many different ways to amend or modify Estate Planning Documents, including the following:
● Codicils: (Small and specific Amendment)
● New Will: (More comprehensive than a Codicil)
● Update by an Attorney: (Has a focus on consistent execution)
Attorney-drafted estate planning documents are often used to help maintain consistency between the original will and any amendments. This approach can reduce ambiguity by ensuring that changes are clearly stated and properly aligned with the existing document. However, attorney involvement is not required in all situations.
Frequently Asked Questions
Can a codicil override a will?
A codicil can change specific parts of a will without replacing the entire document. During probate, the will and codicil are reviewed together, and the updated instructions in the codicil usually control the sections being amended.
Can handwritten codicils cause probate problems?
Handwritten codicils can create probate problems when the wording is unclear or the amendment conflicts with the original will. In Texas, unclear handwritten changes may force courts and family members to interpret what the testator actually intended.
Should I rewrite my will instead of adding a codicil?
A codicil is often used for smaller updates, such as changing an executor or correcting beneficiary information. However, when major life changes or multiple revisions are involved, creating a new will is usually clearer and easier to interpret during probate.
How many codicils are too many?
There is no exact legal limit, but multiple codicils can make a will harder to interpret. When several amendments exist, executors, beneficiaries, and courts may need to compare multiple documents together, which can increase confusion and probate disputes.
Can a codicil be challenged in probate court?
Yes, codicils can be challenged during probate for reasons such as unclear language, improper execution, undue influence, or disputes about mental capacity. Clear drafting and proper execution help reduce the risk of challenges later.
Final Takeaway
A codicil can be a practical way to make small updates to an existing will, as long as the language is clear, the document is properly executed, and it is stored with the original will. In Texas, understanding when a codicil is enough and when a new will provides better clarity can help reduce confusion during probate.
For broader changes, many people choose to create a simple will online through Texas Estate Forms, which allows them to restate their wishes clearly in one updated document.

