New Mexico charges no state estate tax and no inheritance tax, so most families only need to think about the federal estate tax, which applies above $15 million per person in 2026. New Mexico is also a community property state, and a valid will there must be signed by the testator and by two witnesses.
A complete New Mexico estate plan usually includes a will, a durable power of attorney, and health care directives, with a trust added for privacy or to manage assets for a minor or a family member with special needs. FastWill's online will builder covers New Mexico's witness requirements and community property considerations.
Does New Mexico Have an Estate Tax or Inheritance Tax
No. New Mexico has no state estate tax and no inheritance tax, so beneficiaries owe nothing to the state for what they inherit. The only tax exposure is the federal estate tax, which applies only above $15 million per person in 2026. For nearly all New Mexico families, this means no state-level estate tax planning is necessary.
How to Make a Valid Will in New Mexico
Under NMSA 45-2-502, a will must be signed by the testator and by at least two witnesses, each of whom signs in the presence of the testator and of each other after witnessing the signing of the will. The testator must also be of sound mind, and the will must be written and dated by the testator or otherwise properly executed under New Mexico's Uniform Probate Code.
- Be of sound mind (New Mexico does not set a specific minimum age in the statute language commonly cited, so confirm current requirements with counsel)
- Put the will in writing and sign it yourself
- Have two witnesses sign in your presence and in each other's presence
- Name a personal representative and a guardian for minor children
What Happens if You Die Without a Will in New Mexico
New Mexico recognizes community property, meaning most assets acquired during a marriage belong equally to both spouses, which shapes how intestacy divides an estate when there is no will. New Mexico also offers a simplified probate process for estates valued under $50,000, which can save time and cost for smaller estates, though real property and larger estates still require the standard probate process.
Trusts and Probate in New Mexico
New Mexico probate generally involves identifying assets and debts, obtaining a death certificate, filing the will with the probate court, appointing a personal representative, notifying creditors, and distributing assets to beneficiaries. A revocable living trust lets assets bypass this process entirely, which can matter for residents who own property in more than one state or who want the estate to stay private. Because New Mexico is a community property state, married couples should also think carefully about how they title assets, since that affects what a surviving spouse automatically owns.
For a straightforward estate under the small estate threshold, a will alone paired with updated beneficiary designations may be all that is needed. Our guide to the difference between a will and a trust can help you decide.
Powers of Attorney and Health Care Decisions
A Financial Power of Attorney in New Mexico must generally be signed before a notary and should clearly define what powers the agent has, from paying bills to managing investments or real estate. A Living Will and a Durable Power of Attorney for Health Care work together to record your treatment preferences and name a trusted person to make medical decisions if you cannot.
If you have moved to or from New Mexico, see our guide on updating your will, trust, and power of attorney after a move, since community property rules and witness requirements are not the same in every state.
Digital Assets and Personal Property in New Mexico
A complete New Mexico estate plan should also address digital assets, including online banking, cryptocurrency, and social media or email accounts. New Mexico has adopted a version of the Revised Uniform Fiduciary Access to Digital Assets Act, which gives your personal representative a legal path to manage certain digital accounts when your documents authorize it. Keep a secure, separate list of these accounts, since the will itself becomes a public record once it is filed with the probate court.
Frequently Asked Questions
Is New Mexico a community property state
Yes. Most assets acquired during a marriage in New Mexico belong equally to both spouses, which affects both estate planning and what happens under intestacy.
Does New Mexico have an inheritance tax
No. New Mexico has no inheritance tax and no state estate tax.
What is New Mexico's small estate affidavit threshold
New Mexico allows a simplified affidavit process for estates valued under $50,000, letting heirs avoid full probate for smaller estates.
How many witnesses does a New Mexico will need
Two witnesses must sign in the presence of the testator and of each other after witnessing the signing of the will.
Do I need a notary for a New Mexico power of attorney
Generally yes. New Mexico powers of attorney are typically signed before a notary to be accepted by banks and other institutions.
New Mexico's community property rules and its $50,000 small estate threshold both make it worth a real conversation about how to title your assets. See FastWill's plans and pricing to get your plan started.
