How many witnesses do I need for a will in New Mexico?

New Mexico requires 2 competent witnesses who watch you sign the will and then sign it themselves [§ 45-2-502].

Can I write my own will by hand in New Mexico?

No. New Mexico does not recognize holographic wills. Your will must be properly witnessed to be valid.

Does my will need to be notarized in New Mexico?

No. Notarization is not required for a valid will in New Mexico. However, a self-proving affidavit (which does require a notary) is strongly recommended to simplify probate.

Can I disinherit someone in my will?

Yes — you can leave your property to anyone you choose. However, New Mexico law may provide a surviving spouse with an elective share that cannot be fully overridden by a will [§ 45-2-502]. Children can be disinherited if the will makes it clear the omission is intentional [§ 45-2-502].

What happens if I die without a will in New Mexico?

Your assets pass under New Mexico's intestacy laws — a fixed formula based on family relationships. The court appoints an administrator, and the result may not match your wishes.

Topic guideUpdated 2026-02-27

New Mexico Wills — Requirements & Types Explained

How to make a valid will in New Mexico — witnesses, holographic wills, and common mistakes.

A will is the foundation of every estate plan. In New Mexico, a valid will lets you control who inherits your property, name a guardian for minor children, and choose who administers your estate §45-2-502.

Requirements for a valid will in New Mexico §45-2-502

Age and capacity

You must be at least 18 years old and of sound mind — meaning you understand what you own, who your heirs are, and what the will does.

In writing

The will must be a written document. New Mexico does not recognize nuncupative (oral) wills. A valid will must be in writing.

Signed by the Testator

You must sign the will yourself, or direct someone to sign on your behalf in your presence.

Witnessed

2 competent witnesses must watch you sign (or acknowledge your signature) and then sign the will themselves §45-2-502.

Self-proving affidavit §45-2-504

A self-proving affidavit is a sworn statement attached to the will, signed by the testator and witnesses before a notary. It allows the will to be admitted to Probate without requiring the witnesses to appear in court — saving time and avoiding problems if witnesses have moved or died.

✓Adding a self-proving affidavit costs nothing extra and can significantly speed up probate. Most estate planning attorneys include one automatically.

Holographic wills

New Mexico does not recognize holographic (handwritten, unwitnessed) wills. Every will must meet the full execution requirements to be valid.

Types of wills

	Simple will	Pour-over will	Testamentary trust will
How it works	Distributes assets directly to beneficiaries	Directs remaining assets into a trust at death	Creates a trust upon your death
Avoids Probate	No	No (but the trust does for future transfers)	No
Best for	Smaller estates, simple wishes	Paired with a living trust	Minor children, special needs beneficiaries
Complexity	Low	Medium	Higher

Revoking or changing a will

You can revoke a will at any time by creating a new will that expressly revokes the old one, or by physically destroying the document with intent to revoke §45-2-502. A codicil can amend specific provisions without rewriting the entire will; a new will is cleaner for significant changes.

New Mexico follows the Uniform Probate Code. It does not recognize holographic wills; a will must be signed by at least two witnesses. Community property state.

⚠A will only controls assets that are in your name alone. Property held jointly, assets with beneficiary designations (retirement accounts, life insurance), and assets in a trust pass outside the will — regardless of what the will says.

Prepare for Your Consultation

Quick checklist (Estate Planning)

You can start the intake without all of these.

Existing will or trust

(if any)

Asset summary

(property, accounts, policies)

Family information

(beneficiaries, guardians)

General preparation tips only. Requirements vary by case and state.

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