A codicil to will form is a legal document that lets you change an existing will without rewriting it. You can use it to add a beneficiary, name a new executor, or update a small detail, and it sits next to your original last will and testament form. Small changes suit a codicil. Bigger changes often work better in a new will.
Last Updated: October 2026. This guide is reviewed and updated regularly to reflect current law. If you notice an error or outdated information, please contact us.
| Document Name | Codicil to Will Form |
| Other Names | Codicil to Last Will and Testament, Addendum to a Will |
| When to Use | Change of the will executor, Inclusion of new beneficiaries, Marriage or other relationship changes, New assets, etc. |
| Notarization | Only Louisiana requires wills and codicils to be notarized |
| Avg. Time to Fill Out | 5-60 minutes, depending on the changes made |
| # of Fillable Fields | 29 |
| Available Formats | Adobe PDF, Microsoft Word |
A codicil is recommended whenever you need to make a relatively small change to your existing will, but that change doesn’t substantially re-write the original document. A codicil is best for minor changes and when you only want to make one or two changes at a time.
Here are two examples. You may need to add a new property to your will, or you may want to include a grandchild who wasn’t around when you wrote the original will. A codicil to will works well in both cases.
Codicils are typically used for:
If you need another codicil example or aren’t sure if your situation works for a codicil, consult with your lawyer.
These are all good scenarios for codicils because it’s relatively straightforward to make those amendments. Usually, these are also scenarios that your beneficiaries are unlikely to dispute, so adding them in later is less likely to cause problems when it’s time to execute your will.
However, if you’re making more substantial changes, completely re-working your beneficiary structure, or removing a beneficiary entirely, it’s often better to write a new will.
That’s partly because the cost of the codicil for those more complicated alterations is likely to be just as high as the cost of a new will. A new will with a new date and completely fresh information is also less likely to be disputed than a complicated codicil with the original version of the will available.
Codicils don’t mean that the previous version of the will receives attorney-client privilege, but rewriting your will does.
Writing a codicil doesn’t have to be difficult, but it’s critical that you do it correctly. We’ll outline what the process looks like, but state law varies and may need a different codicil template.
Your lawyer will know the state requirements, or you can download a state-specific blank codicil to will template here. Blank will codicil forms are usually pretty easy to fill out and can be a great starting point.
If you already have a legal representative that you can consult, they can also tell you how to write a codicil to a will.
Alternatively, we also offer a free codicil form that you can use to create a printable codicil to will. That way, you can make edits and changes digitally and then quickly print them before signing with witnesses.
Our form also helps when you work with a lawyer. You start with a clearer idea of what you want to change, so you can spend your time together on the legal phrasing.
The process has four steps:
1. Find a Current Copy of Your Will and Decide on Changes
The first step should always be reviewing your existing last will and testament in case you want to make more than one adjustment to the document. Look over every provision before you start making a codicil since the more changes you make, the more likely your lawyer will recommend writing a new will instead.
2. Write the Codicil
All codicils have the testator’s name (the author of the will and listed assets) and address, the date the will was created, and the declaration, or changes being made to the will.
You’ll probably want to consult with a legal professional during this process, especially if you’re wanting to make more than one or two changes. A law firm might advise you on the best language to use and will help you decide whether this is a change for a codicil or a sign that you need a new last will and testament.
3. Sign the Codicil With Witnesses
Like a will, one requirement is that codicils be signed with at least two witnesses present. The witnesses have to watch the testator sign and cannot be beneficiaries named in the will. The witnesses also need to authorize the codicil after it is signed.
In all 3 states FormsPal’s verified state data covers, a codicil is executed with the same formalities as a will. All 3 states covered require a will to be in writing. All 3 states covered also require the person making the will to sign it.
Optionally, you can also choose to get a self-proving affidavit, which requires your witnesses to swear under oath that they witnessed the testator sign the codicil. Self-proving affidavits also require the presence of a notary public to be considered valid.
4. Attach the Codicil to the Will
The last step is to attach the signed and witnessed codicil to your will and distribute copies of both documents to relevant individuals, often family members. Attaching the codicil is the last step of adding a codicil to a will.
You should also make sure that your lawyer has an up-to-date copy of both the will and codicil for safekeeping.
If you want to fill out a codicil template that we provide on our website, here are brief instructions that will let you fill out the document in no time and without any complications!
The form has six parts, in this order:
Step 1: Information about the testator
1: Indicate the testator’s name two times: right under the document’s name and further at the beginning of the first paragraph.
2: Specify the testator’s county of residence.
3: Write down the state where the testator lives.
Step 2: Date of the original will
Further, indicate when the original will document was created.
Step 3: The article that is to be amended
Now, specify the essence of the amendment: what you want to change in your last will.
1: Mention the article (paragraph or part) in your original will that is going to be changed.
2: Write down how exactly you want it to be changed.
Step 4: Confirmation
The following language in the document will indicate that you, as the testator, confirm and republish your will. Insert the date of the original will once again.
Step 5: Date and signature
The next thing you should do is:
1: Place your signature
2: Indicate your printed name
3: Insert the date of signing
Step 6: Witness Acknowledgement
Lastly, the required number of witnesses should fill out each respective section. This section is meant to serve as proof that you are of sound mind, over 18 years old, and willingly created the codicil to your will.
It should include the name of the testator, date of the codicil creation, number of pages along with the place of the codicil execution, names, signatures, and places of residence of the witnesses.
There isn’t a hard and fast rule for when you should opt for a new will instead of a codicil. Your lawyer may recommend a new will if your changes would take as much of their time as drafting one. A new will is usually the more secure version of the two.
A new will is often the better choice in these situations:
Case 1
Changing your beneficiary structure or moving some assets from one beneficiary to another can also be a good reason to create a new will. That’s because the new will only shows when it was created but doesn’t show any changes you made to the beneficiary structure.
A codicil lets everyone involved see both the original will and update, which can cause disputes and strife among your beneficiaries.
Case 2
It’s also a good idea to write a new will if you already have one codicil, or several, and need to update your will again. That’s because rewriting reduces the chances of having conflicting changes or disputable areas that can cause problems for your beneficiaries.
Case 3
The last thing you’ll want to consider when deciding between a codicil and rewriting your will is how controversial you think any given provision of your will might be.
A complete will is more durable than a poorly written codicil. So, if you’re worried that your beneficiaries might fight over certain provisions of your will or that your executor might have problems following sections of it, you’ll want to avoid putting those provisions in a codicil.
It’s worth noting that some lawyers tend more towards a codicil or more toward a will rewrite. Those preferences are typically only loosely connected to the cost of the document (and your lawyer will usually prefer the cheaper option). More important is your lawyer’s experience and which they think is more likely to be an effective and conflict-free option for the change you’re making.
A codicil that is unclear or clashes with your will can leave your family arguing about what you meant. If your change is complicated, ask a lawyer to review it before you sign.
Yes. You can revoke or make changes to your codicil at any time, just like you can update your will whenever necessary. It’s a good idea to stay up to date on your current will and any attached codicils to make sure that it’s still relevant to your situation and accurate for how you want your estate to be handled.
Technically, yes. A holographic will or codicil can be handwritten on your copy of your will, and depending on many different circumstances, may be considered valid.
However, it’s not recommended to hand-write codicils and other changes, partially because handwritten versions of those documents are almost never crafted with the advice of a lawyer. Minor differences in language that wouldn’t matter in another document can lead to disaster in legal papers, including your last will and testament.
It’s always best to seek a lawyer’s assistance with your will and any codicils, which will usually mean using a typed and properly witnessed document instead of a handwritten holographic will.
A codicil is valid as long as it’s been properly signed and witnessed, attached to your will, and has not been revoked by the testator or invalidated by another document.
Codicils vary in cost depending on how much you need to change in your will. Most codicils that make a minor change or adjustment are relatively inexpensive at around $100. However, the more changes you need to make or the more complicated your will already is, the more you should expect to pay.
The price depends mostly on these factors:
At the same time, if your codicil is simple and you can fill out a blank codicil form, it will probably cost less.
Past a certain point, your lawyer may recommend changing to writing a new will because that may be the cheaper and more efficient option.
General information, not legal or tax advice.
