# Will and Power of Attorney in California: Do You Need Both?

> Do you need both a will and a power of attorney in California? What each does, what neither can reach, and how a trust and health care directive fit in.

Source: https://ridleylawoffices.com/will-and-power-of-attorney-california/

**Short answer –**Yes, you need both, because they work at different times. A will takes effect at your death and names the executor who settles what’s in your name alone. A power of attorney works while you’re alive and ends at death (Prob. Code, § 4152(a)(4)), so it’s the document that lets someone manage your money if you can’t. A third document, the advance health care directive, covers medical decisions. A will without a power of attorney leaves your accounts with no manager if you lose capacity. A power of attorney without a will leaves your sole-name property to the intestacy statutes.

By Eric Ridley, attorney, Ridley Law. Updated October 2026.

Do you need both a will and a power of attorney in California, or does one cover the other? One doesn’t cover the other. Each document starts working when the other stops. If you also own a house, read this alongside [the trust or will decision aid](https://ridleylawoffices.com/trust-or-will/), because a living trust changes the picture.

## Two documents that work at different times

Take Rosa, a hypothetical 71-year-old widow. She has a house in her name, $180,000 in accounts, and a will her children know about. She has a stroke. Her will does nothing, because nobody can use a will while its maker is alive. Her accounts are in her name alone, so her children can’t pay her bills or her caregiver. The remedy at that point is a court proceeding to get authority over her finances, and I don’t handle those proceedings. My practice is the planning that avoids them, and the avoiding document is a [durable power of attorney](https://ridleylawoffices.com/california-durable-power-of-attorney/). See [avoiding conservatorship](https://ridleylawoffices.com/avoiding-conservatorship-california/).

Reverse it. Rosa has a power of attorney and no will. Her agent manages her money well for eight years. Then she dies, and the agent’s authority ends that day. Her sole-name property now passes by the intestacy statutes, and a court chooses an administrator in the priority order of Prob. Code, § 8461, with the surviving spouse first and then the children. The family may be fine with that outcome. Rosa didn’t get to choose it.

| Document | When it works | Who acts | What makes it valid |
| --- | --- | --- | --- |
| Will | At death | The executor, once the court issues letters | In writing, signed, with two witnesses who were present at the same time (Prob. Code, § 6110), or in your own handwriting (§ 6111) |
| Power of attorney for finances | While you’re alive, from signing or on incapacity if it says so | The agent | Dated, signed, and notarized or signed by two witnesses (§ 4121). The agent can’t be a witness (§ 4122) |
| Advance health care directive | When you can’t make health care decisions yourself | The health care agent, plus any written instructions | Dated, signed, and notarized or signed by two qualified witnesses (§ 4673) |

## What a will does, and what it can’t reach

A will says who receives your property that passes through probate and names the person who will carry that out. The person named as executor has the right to appointment (Prob. Code, § 8420), but has no power to administer the estate until the court appoints the person and letters issue (§ 8400). A person who is 18 or older and of sound mind can make a will (§ 6100). It has to be written and signed, and witnessed by two people who were present at the same time and who understand the document is your will (§ 6110). A handwritten will can also be valid if the signature and material provisions are in your own handwriting (§ 6111). If you have minor children, a parent may nominate a guardian in the cases § 1500 lists. The page on [naming a guardian](https://ridleylawoffices.com/guardianship-of-minor-children/) explains how that nomination works with a plan.

The limit is that a will controls only property that passes through probate. Property in a revocable trust, in joint tenancy, or in a payable-on-death account falls outside the estate for the small-estate rules (Prob. Code, § 13050), and a retirement account pays whoever the beneficiary form names. Use the chart to test any asset.

If the sole-name property that would need probate has a gross value of $208,850 or less, the successors can use a small estate affidavit 40 days after the death (Prob. Code, § 13100). A primary residence worth $750,000 or less can move by a petition on the same 40-day rule (§ 13151). Both figures apply to deaths on or after April 1, 2025, per the Judicial Council’s adjusted amounts, and both look at gross value, so a mortgage doesn’t reduce them. A widowed homeowner whose house is worth more than $750,000 in her own name has a will that leads to probate. That is the main reason a living trust comes ahead of the will for homeowners. See [will versus living trust](https://ridleylawoffices.com/will-vs-living-trust-california/).

## What a power of attorney does, and what it can’t

A power of attorney names an agent to act for you. A durable one says it survives your incapacity, using words like “This power of attorney shall not be affected by subsequent incapacity of the principal” (Prob. Code, § 4124). The agent’s acts during incapacity bind you and your successors as if you had capacity (§ 4125). It’s valid if it is dated, signed by you, and either notarized or signed by two adult witnesses, and the agent can’t be one of the witnesses (§§ 4121, 4122). Even where witnesses are enough, the statutory warning on printed forms says a power of attorney that may affect real property should be acknowledged before a notary so it can be recorded (§ 4128).

First, it ends at death. The agent has to hand property and records to the personal representative or successors, and good-faith acts before learning of the death stay valid, which is covered in [what happens to a power of attorney after death](https://ridleylawoffices.com/does-power-of-attorney-end-at-death-california/). Second, an agent can’t do certain things unless the document expressly says so, including creating or changing a trust, making gifts, creating or changing survivorship interests, and changing beneficiary designations (§ 4264). A generic form that says nothing on those points can leave a family stuck when a trust needs funding or a gift is part of the plan. Third, a third party doesn’t have to honor an agent in circumstances where it wouldn’t have to honor you (§ 4300). That is why my plan includes a custom power of attorney alongside the statutory form. The fixes are on [what to do when the bank won’t accept it](https://ridleylawoffices.com/bank-wont-accept-power-of-attorney-california/).

The power of attorney doesn’t make or change a will. Section 6110(b) lists who may sign a will for the testator, and an agent isn’t on the list. The comparison with a trust is on [living trust versus power of attorney](https://ridleylawoffices.com/living-trust-vs-power-of-attorney-california/).

## The third document people mean by a living will

Searches for a living will and power of attorney usually mean the health care side. Prob. Code, § 4605 defines an advance health care directive as either an individual health care instruction or a power of attorney for health care. An individual instruction is a patient’s written or oral direction about a health care decision (§ 4623). That is what people call a living will. A power of attorney for health care names an agent who can make health care decisions and can also include your instructions (§ 4671). So there are two powers of attorney in a complete plan, one for money and one for medical decisions. The financial statute doesn’t cover the medical one, which sits under its own division (§ 4050(a)(1)). A health care directive is signed with the same date, signature and notary-or-two-witnesses requirements as a power of attorney (§ 4673), although the witnesses face extra limits, such as no health care providers and no agent (§ 4674). See [AHCD, living will and POLST](https://ridleylawoffices.com/ahcd-vs-living-will-vs-polst-california/) and the [living will definition](https://ridleylawoffices.com/estate-planning-glossary-california/living-will/).

## Signing a will and power of attorney so they hold up

A will whose two witnesses weren’t in the room at the same time can fail § 6110, although a court can treat a defective will as valid if the proponent proves by clear and convincing evidence that the maker intended it as a will. A power of attorney missing its date doesn’t satisfy § 4121. A notary acknowledgment also lets a power of attorney that touches real property be recorded. Details on each formality are in [the legal requirements for wills](https://ridleylawoffices.com/legal-requirements-wills-california/).

## Which combination fits

| Your situation | What I’d put in place | Why |
| --- | --- | --- |
| Modest estate, no home | Will, power of attorney, health care directive | Sole-name property of $208,850 or less may pass by affidavit, but nobody can manage your money if you can’t. See [the affidavit process](https://ridleylawoffices.com/small-estate-affidavit-california-2026/) |
| A home in your name | Living trust with a pour-over will, plus both powers of attorney | A house over $750,000 can’t use the residence petition, and a house in your name alone, with no trust or co-owner, usually goes through probate. See [will versus living trust](https://ridleylawoffices.com/will-vs-living-trust-california/) |
| Children under 18 | A will that nominates a guardian, plus a trust for what they inherit | A parent may nominate a guardian of the person or estate under the conditions in Prob. Code, § 1500. See [naming a guardian](https://ridleylawoffices.com/guardianship-of-minor-children/) |
| Already have a will only | Add a power of attorney and a health care directive now | A will does nothing while you’re alive. See [the durable power of attorney guide](https://ridleylawoffices.com/california-durable-power-of-attorney/) |

My revocable living trust plan is a flat $4,900 as of October 2026, including up to two deeds transferring California real estate into the trust. It includes the trust, a pour-over will, two financial powers of attorney (a statutory form and a custom-written one), an advance health care directive with your health care power of attorney, a dementia directive, HIPAA authorizations, a certification of trust, help retitling accounts, and one year of free trust amendments. The details are on the [fees page](https://ridleylawoffices.com/fees/).

## Frequently asked questions

### Do I need a will if I already have a power of attorney?

Yes. A power of attorney ends when you die (Prob. Code, § 4152(a)(4)), so it can’t say who inherits or who settles your estate. Without a will, a court appoints an administrator from the § 8461 priority list, and your sole-name property passes under the intestacy statutes to the relatives the law names. A will, or a trust with a pour-over will, lets you choose.

### Do I need a power of attorney if I already have a will?

Yes. A will operates only after death. If you lose capacity first, nobody has authority under your will to pay your bills or manage your accounts. A durable power of attorney (§ 4124) lets the agent act during incapacity, and § 4125 makes the agent’s acts binding as if you had capacity. Keep both.

### Is a living will the same as a power of attorney?

No. A living will is a health care instruction, a direction about your own care. A power of attorney for health care names an agent to decide for you. Prob. Code, § 4605 treats both as advance health care directives. A power of attorney for finances is a third document and doesn’t cover medical decisions.

### Can the same person be my agent and my executor?

Yes, and many people choose one trusted person for both. The jobs are separate. The agent acts under the power of attorney while you’re alive, and the agent’s authority ends at your death. The executor acts only after the court appoints the executor and issues letters (§ 8400). Name a backup for each.

### If I have a living trust, do I still need a will?

Usually yes. A pour-over will catches property that never got retitled into the trust and sends it there. The will is also where a parent nominates a guardian for minor children, within the conditions of § 1500. The trust governs only what it holds. Anything left in your own name still needs the will.

### Can my agent change my will?

No. Section 6110(b) says a will is signed by the testator, by another person in the testator’s presence and at the testator’s direction, or by a conservator under a court order. An agent under a power of attorney isn’t on that list. Your agent also can’t create or change a trust or change beneficiaries unless the power of attorney expressly says so (§ 4264).

### What happens if I have a will but no power of attorney and lose capacity?

While you’re alive your will does nothing. Accounts in your name alone would have nobody with authority to act for you, and your family could face a court proceeding to get that authority. I don’t handle conservatorship proceedings. My practice is the planning that avoids them, which is why the power of attorney and health care directive come first.

### Can I write a will and power of attorney myself?

The law allows a handwritten will if the signature and material provisions are in your handwriting (Prob. Code, § 6111), and a power of attorney only needs a date, your signature, and a notary or two witnesses (§ 4121). The risk is acceptance. Third parties don’t always have to honor an agent (§ 4300), and a flawed will can surface only after death, when it can’t be fixed.

Sources

- California Legislature, Probate Code [§ 6100](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=6100); [§ 6110](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=6110); [§ 6111](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=6111); [§ 1500](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=1500); [§ 4121](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4121); [§ 4122](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4122); [§ 4124](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4124); [§ 4128](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4128); [§ 4152](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4152); [§ 4264](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4264); [§ 4605](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4605); [§ 4623](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4623); [§ 4671](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4671); [§ 4673](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=4673); [§ 8400](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=8400); [§ 13100](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=13100); [§ 13151](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB&sectionNum=13151) (current, accessed October 2026)
- [Judicial Council of California, Maximum Amounts for Determining Eligibility for Summary Succession Procedures](https://courts.ca.gov/system/files/file/probate-code-890-adjusted-amounts.pdf) (adjusted April 1, 2025)