California Will Requirements: How to Make a Valid Will

A will directs what happens to your property after you die, names guardians for minor children, and appoints someone to manage your estate. For a will to be legally effective in California, it must meet specific requirements under the California Probate Code.

Basic Requirements

Who Can Make a Will

To make a valid will in California, you must be:

1. At Least 18 Years Old Minors cannot make wills, with very limited exceptions for married minors or those in the military.

2. Of Sound Mind You must understand:

What a will is and what it does
The nature and extent of your property
Who your natural heirs are (spouse, children, parents)
How the will distributes your property

This does not mean you need perfect memory or judgment. Mental capacity is measured at the time of signing.

Types of Valid Wills in California

Witnessed Will (Formal Will)

The standard will type. Most estate planning attorneys create this type.

Requirements:

In writing
Signed by the testator (the person making the will)
Witnessed by two people

Witness Requirements:

Two witnesses must be present when you sign
Witnesses must sign the will
Witnesses must understand they are witnessing a will
Witnesses should be disinterested (not beneficiaries)

Best Practices:

Have witnesses sign in your presence
Include a self-proving affidavit
Use witnesses who are easy to locate

Holographic Will (Handwritten Will)

California allows handwritten wills without witnesses.

Requirements:

Material provisions must be in the testator's handwriting
Must be signed by the testator
Must show testamentary intent

What Counts as Material Provisions:

Who receives what
How property is distributed
Appointment of executor

Common Problems:

Unclear language
Incomplete distributions
Missing signatures
Contested handwriting

Holographic wills are legal but often create problems. Use only in emergencies.

Statutory Will

California provides a fill-in-the-blank statutory form.

Features:

Simple format
Covers basic situations
Free from California State Bar
Limited customization

Best For:

Simple estates
Standard distributions
People without complex situations

Signing Requirements

Testator's Signature

The testator must sign the will. The signature can be:

Full legal name
Nickname consistently used
Mark (X) if unable to write, with witnesses noting this
Signature by another at the testator's direction

Witness Signatures

For formal wills, witnesses must:

Be present when the testator signs (or acknowledges their signature)
Sign the will themselves
Be at least 18 years old
Understand they are witnessing a will

Self-Proving Affidavit

A self-proving affidavit is a notarized statement attached to the will. It allows the will to be admitted to probate without tracking down witnesses.

Benefits:

Speeds up probate
No need to locate witnesses years later
Witnesses do not need to testify

Not required, but strongly recommended.

Who Can Be a Witness

Disinterested Witnesses

The best witnesses have no stake in the will:

Not named as beneficiaries
Not related to beneficiaries
Not financially interested

Interested Witnesses

California allows interested witnesses (beneficiaries), but there are consequences:

The will is still valid
The interested witness's gift may be void
Unless the witness would inherit anyway under intestate succession
Or unless there are two other disinterested witnesses

Best Practice: Always use disinterested witnesses.

What to Include in Your Will

Required Elements

For a valid will, include:

Statement that this is your will
Your name and residence
Signature
Date
Witness signatures (for formal wills)

Common Provisions

Beneficiary Designations:

Specific gifts (particular items to specific people)
General gifts (dollar amounts)
Residuary clause (everything else)

Executor Appointment:

Name your executor
Name alternates
Grant appropriate powers

Guardian Nomination:

For minor children
Name alternates
This is the only way to nominate guardians

Trust Provisions:

Can create testamentary trusts
For minor beneficiaries
For special needs

What Makes a Will Invalid

Lack of Capacity

If the testator lacked mental capacity:

Did not understand the nature of the will
Did not know their property
Did not recognize their heirs

Undue Influence

If someone improperly influenced the testator:

Pressure or manipulation
Taking advantage of a vulnerable person
Typically by someone in a position of trust

Fraud

If the testator was deceived:

About the nature of the document
About facts affecting the will
By someone who benefited

Improper Execution

If signing requirements were not met:

No signature
Witnesses not present
Wrong type of will for the situation

Revocation

A will can be revoked by:

Physical destruction (tearing, burning)
Written revocation
Making a new will
Certain legal events (divorce in some cases)

Updating Your Will

Codicil

A codicil is a formal amendment to a will:

Must meet the same requirements as a will
References the original will
Changes specific provisions

New Will

For significant changes, create a new will:

Include revocation clause
Destroy old wills to prevent confusion
Update all provisions

When to Update

Update your will when:

Marriage or divorce
Birth or adoption of children
Death of beneficiary or executor
Significant asset changes
Move to another state
Changed wishes

Common Mistakes

DIY Errors

Self-drafted wills often have problems:

Ambiguous language
Missing provisions
Improper execution
No residuary clause

Improper Witnessing

Witness problems include:

Witnesses not present at signing
Interested witnesses
Witnesses who cannot be found later

Outdated Wills

Old wills may:

Name deceased beneficiaries
Include ex-spouses
Not cover new assets
Conflict with current wishes

Conflicting Documents

Problems arise when:

Multiple wills exist
Beneficiary designations conflict with will
Trust and will do not align

Will vs. Trust

What a Will Does

Distributes probate assets
Appoints executor
Names guardians for minor children
Goes through probate court

What a Trust Does

Distributes trust assets
Avoids probate
Works during incapacity
Stays private

Most California estate plans include both a trust and a pour-over will. See our guide on trust administration for what happens after the grantor passes.

Frequently Asked Questions

Does a will have to be notarized in California?

No. California wills do not need to be notarized to be valid. However, a notarized self-proving affidavit makes probate easier.

Can I write my own will in California?

Yes. Holographic (handwritten) wills are valid if material provisions are in your handwriting and you sign it. However, DIY wills often create problems.

How many witnesses do I need for a will in California?

Two witnesses for a formal will. Holographic wills do not require witnesses.

Can a family member witness my will?

Yes, but it is not recommended. If the witness is a beneficiary, their gift may be void unless other requirements are met.

Does a California will work in other states?

Generally yes. A will valid where executed is usually valid in other states. However, state laws differ, so review with an attorney if you move.

Related Guides

Sources:

"California Probate Code Sections 6100-6113," California Legislative Information, 2024, https://leginfo.legislature.ca.gov/
"California Probate Code Sections 6110-6113," California Legislative Information, 2024, https://leginfo.legislature.ca.gov/
"Making a Will," California State Bar, 2024, https://www.calbar.ca.gov/

This guide provides general information about will requirements in California. Consult with a California estate planning attorney for advice specific to your situation.