Conservatorship vs. guardianship in California.
If you have been reading about how to protect a parent, a spouse, or an adult family member who can no longer manage on their own, you have probably seen both words used as if they mean the same thing. In California they do not. The short version: a guardianship is for a minor, a child under eighteen. A conservatorship is for an adult. Most of the confusion comes from other states, which often use "guardianship" for both.
The difference, in one line.
- Guardianship — for a minor. A guardianship places an adult in charge of a child under eighteen, either of the child's person (where they live, their care and schooling), of the child's estate (money or property the child owns), or both. It lives in California Probate Code sections 1500 through 1611.
- Conservatorship — for an adult. A conservatorship places a responsible person or a professional in charge of an adult who can no longer provide for their own health, food, clothing, or shelter, or who can no longer manage their finances. It lives in Probate Code sections 1800 and following. Like a guardianship, it can be of the person, of the estate, or both.
So if the person you are worried about is an aging parent with dementia, a spouse after a stroke, or an adult sibling with a disability, the word you are looking for in California is conservatorship — even though a relative in another state might call the same thing a guardianship.
The one place the line bends.
There is a narrow exception worth knowing, because it trips people up. Probate Code section 1510.1 lets a California court appoint or extend a guardian of the person for an unmarried young adult who is eighteen to twenty — most often to support a special immigrant juvenile petition, or to let a young person who was already a ward finish their schooling. That is the only common situation where the word "guardianship" attaches to someone over eighteen in California. In every ordinary case, an adult who needs protection is helped through a conservatorship.
And one more that families of young adults with developmental disabilities ask about constantly: when a child with a developmental disability turns eighteen, the answer is not guardianship. It is a limited conservatorship under Probate Code section 1827.5 — built specifically for that situation, and designed to leave the young adult with as much independence as the facts allow.
Before a conservatorship: what the court must consider first.
A conservatorship is the heaviest tool available, so California treats it as a last resort. Since AB 1663 took effect in 2023, Probate Code section 1800.3 requires the judge to consider whether a less restrictive arrangement would do the same job before granting one. Whether any of these fits depends on whether the adult still had the capacity to set it up, and whether the person they named is willing and able to act:
- A durable power of attorney for finances — names a trusted person to handle money and property. It has to have been signed while the person still had capacity.
- An advance health care directive — names someone to make medical decisions, and records the person's own wishes.
- A living trust with a successor trustee — lets the named successor manage trust assets if the person becomes unable to, with no court involvement at all.
- A representative payee — a person the Social Security Administration approves to receive and manage someone's benefits.
- A supported decision-making agreement — formally recognized in California since AB 1663. The person keeps their own legal authority and chooses trusted people to help them understand and communicate decisions. It does not involve the court.
If one of these is already in place and working, a conservatorship may not be necessary at all. If none is, or the documents were never signed while there was still capacity, conservatorship may be the only path left. Sorting out which situation you are in is the single most useful thing to do before anyone files a petition.
Who can serve, and when a professional makes sense.
A conservator can be a family member, and frequently that is the right choice. California law also directs the court to give weight to the proposed conservatee's own stated preference about who serves. A professional fiduciary tends to be the better answer in three situations: when no family member is available or willing; when the family is in conflict and a neutral party is needed to keep the focus on the conservatee; and when the work itself — the court accountings, the medical and care coordination, managing real property and investments — is more than a relative with their own job and family can realistically carry.
A California professional fiduciary is state-licensed, bonded, and answerable to the probate court for every decision and every dollar, with a fee schedule disclosed in writing before the work begins. That accountability is the point: it is the same standard whether the fiduciary is managing a conservatorship, serving as a successor trustee, or acting as agent under a power of attorney.
If you have reached the point where a conservatorship looks likely, or you simply want a clear read on whether it is, the next page walks through what a professional conservator actually does in California and how the appointment works:
Related: if the person you are helping set up a trust before they lost capacity, the question may instead be about a successor trustee or agent under a power of attorney.
Common questions.
In California, what is the actual difference between guardianship and conservatorship?
It comes down to age. In California, a guardianship is for a minor — someone under eighteen. A conservatorship is for an adult who can no longer manage their own care or finances. Many other states use the word "guardianship" for both, which is why so much general information online gets California wrong. If you are dealing with an aging parent, a spouse after a stroke, or an adult sibling with a disability, the California word is conservatorship.
My child with a developmental disability is turning eighteen. Is that guardianship or conservatorship?
Conservatorship — specifically a limited conservatorship under Probate Code section 1827.5, designed for adults with developmental disabilities. The day your child turns eighteen they are legally an adult, so the minor-guardianship framework no longer applies. A limited conservatorship gives the conservator only the specific powers the court finds are needed, leaving the young adult as much independence as possible. Some families share the role with a professional; some ask a neutral professional to take it.
Is there ever a guardianship for someone over eighteen in California?
Rarely, and only in narrow situations. Probate Code section 1510.1 lets a court appoint or extend a guardian of the person for an unmarried person aged eighteen to twenty — for example, to support a special immigrant juvenile petition or to let a current ward finish school. Outside those specific circumstances, an adult who needs protection is helped through a conservatorship, not a guardianship.
Do we have to go to court, or is there a lighter option?
There may be a lighter option, and California law now requires the court to look for one first. Before granting a conservatorship the judge must consider less restrictive alternatives — a durable power of attorney, an advance health care directive, a living trust with a successor trustee, a representative payee for Social Security, or a supported decision-making agreement. Whether one of those fits depends on whether the person still had capacity to sign it and whether the named person is able to act. That is the first thing worth sorting out before anyone files anything.
Who can serve as conservator — does it have to be a family member?
It can be a family member, and often that is the right answer. The court also gives weight to the proposed conservatee’s own stated preference. A professional fiduciary becomes the better choice when no family member is available, when the family is in conflict and a neutral is needed, or when the work — court accountings, medical coordination, managing property — is more than a relative with their own job and life can take on. A California professional fiduciary is licensed, bonded, and accountable to the court for every decision.
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