Who Is Considered a Fiduciary?
If you’re managing money for a California senior as a local resident, out-of-state adult child, or trusted family member in a legal role, you know someone must be responsible. The legal responsibilities of that role, though, are often less clear.
At some point, the question appears: Who is considered a fiduciary?
Understanding that answer protects the person at the center of the situation and protects the honest family member who is trying to help. This guide explains who a fiduciary is, who is not, and how trust and estate accounting supports those duties. This is general information, not legal advice, but it will help you identify issues early and know when to consult with an attorney or a CPA firm, such as Smith Marion.
Who is considered a fiduciary?
Who is considered a fiduciary? A fiduciary is any person or professional who has legal authority to manage someone else’s money or property and must act in that person’s best interest. In California, this usually includes trustees, executors, agents under a financial power of attorney, court-appointed conservators or guardians of the estate, and licensed private fiduciaries.
A fiduciary is someone who has a legal duty to act in another person’s best interest.
The key points are:
- They handle someone else’s money or property.
- That authority comes from a trust, will, power of attorney, or court order.
- The law expects them to prioritize the other person’s interests and follow established rules.
In California, the Probate Code and probate courts define many of these rules. The California Professional Fiduciaries Bureau licenses and oversees professional fiduciaries who serve multiple clients.
The core fiduciary duties are:
- Loyalty – put the other person’s interests ahead of your own.
- Care – act carefully and thoughtfully with their property.
- Good faith – act honestly and fairly.
- Disclosure – share information when the document or the law requires it.
Once someone steps into a formal role, the title is not just a label. It carries these duties and the risk of court action if they are not followed.
Quick list: who is usually considered a fiduciary?
In many California situations, these roles are treated as fiduciaries:
- Trustees of revocable and irrevocable trusts
- Executors and personal representatives of estates
- Agents under a financial power of attorney
- Court-appointed conservators or guardians of the estate
- Licensed private or professional fiduciaries serving in these roles
- Certain investment advisers or retirement-plan managers, in specific contexts
The rest of this article explains each of these in more detail and shows how Smith Marion supports them with clear, court-ready accounting.
Who is considered a fiduciary? Roles in California
1. Trustees of revocable and irrevocable trusts
A trustee manages assets in a trust on behalf of one or more beneficiaries. The trustee is always a fiduciary.
Their duties include:
- Following the written terms of the trust
- Protecting and managing trust assets
- Keeping trust funds separate from personal funds
- Providing information and, often, formal accounts to beneficiaries
Many trustees are adult children or spouses who step in as successor trustees after a loved one passes away or becomes unable to manage their affairs alone. The moment they begin acting under the trust, they carry fiduciary status.
2. Executors and personal representatives of estates
An executor (or personal representative) handles the estate of someone who has died.
Executors are considered fiduciaries because they:
- Gather and safeguard estate assets.
- Pay valid debts and taxes.
- Follow the will and probate court orders.
- Distribute remaining assets to the right heirs.
They must act in the best interest of the estate and all entitled heirs, not just for themselves or a single family member.
3. Agents under a financial power of attorney (POA)
An agent under a financial power of attorney can sign checks, pay bills, and manage the finances of another person while they are alive.
That agent becomes a fiduciary when they use the POA. They must:
- Use the authority only for the benefit of the person who granted it.
- Respect any limits set in the document.
- Keep clear records of what they did with the funds.
A key detail: a financial POA ends at death. After that, the executor or successor trustee takes over. Using a POA after the person passes away falls outside the agent’s authority.
4. Court-appointed conservators and guardians of the estate
A conservator or guardian of the estate is appointed by the court to manage finances for someone who cannot manage on their own.
This person is a fiduciary because:
- The court has granted them control over another person’s property.
- They must follow court orders and deadlines.
- They must file detailed accountings in forms the court accepts.
Because the court stays involved, the standards for recordkeeping and reporting are strict.
5. Licensed private or professional fiduciaries in California
A licensed professional fiduciary may serve as trustee, executor, conservator, or in similar roles for several clients.
In California, these professionals:
- Hold a license through the California Professional Fiduciaries Bureau.
- Meet education and background requirements.
- Follow professional standards and ethics rules.
They still carry the same basic fiduciary duties of loyalty, care, good faith, and disclosure. Their work often involves a team that includes attorneys and a CPA firm, such as Smith Marion, to handle trust and estate accounting.
Who is usually not a fiduciary?
Knowing who is not considered a fiduciary is just as important. Many people care deeply and provide input on finances without holding a legal fiduciary status.
Common examples include:
CPAs or tax preparers
A CPA or tax preparer has professional obligations, but is not automatically a fiduciary for all of a client’s affairs.
- Their duty is tied to the engagement agreement and professional standards.
- They typically do not control client assets.
In many trust and estate matters, Smith Marion supports the fiduciary rather than serves as the fiduciary. We provide accounting; the trustee or executor makes the decisions.
Informal “money helpers.”
Adult children, friends, or caregivers who:
- Help sort mail
- Review statements
- Drive someone to the bank.
- Share opinions about what might be wise.
They are usually not fiduciaries unless they also hold a formal role such as trustee, executor, or POA agent.
General financial educators
Individuals who provide general financial education, such as through articles, seminars, or videos, are not fiduciaries. They provide information, not direct control over anyone’s money.
Why this matters:
Formal appointment through a document or court order typically triggers fiduciary status. Once that happens, the law expects more than good intentions. It expects clear records, careful decisions, and respect for the documents and the court.
How laws and standards shape fiduciary roles in California
If you serve as a trustee, executor, conservator, or POA agent in California, you work inside several frameworks:
- California Probate Code
Sets rules for trustees, executors, conservators, and guardians and describes how accountings should look. - California Professional Fiduciaries Bureau
Licenses and oversees professional fiduciaries and enforces education and ethics rules. - Core fiduciary duties
- Loyalty
- Care
- Good faith
- Disclosure
Smith Marion does not act as legal counsel. Our role is to help fiduciaries comply with the accounting and reporting expectations outlined in these rules, allowing attorneys to focus on legal strategy and enabling the court to rely on accurate numbers.
How Smith Marion supports fiduciaries with trust and estate accounting
Many people contact Smith Marion as soon as they realize, “I think I am a fiduciary now, and I have to report to others.”
At that point, we can:
- Prepare trust, estate, guardianship, or conservatorship accountings
We collect and organize financial data into court-ready formats that follow California Probate Code standards. - Set up practical systems and recordkeeping.
We help fiduciaries track receipts, disbursements, and asset changes, making ongoing reporting more manageable. - Support professional and family fiduciaries.
We work with licensed fiduciaries who require reliable court accountings and with family members who want to prevent problems before they arise. - Make complex reports understandable.
We transform complex accounting formats into clear, readable reports that align with our “Understandable” value, enabling families and attorneys to see the full picture.
Our Fiduciary Assistance Services and secure fiduciary portal make it easier to share documents, upload statements, and stay organized over time.
How to know if you might be a fiduciary
You may be a fiduciary if:
- You are named as trustee or successor trustee in a trust and have started using that authority.
- You have been appointed executor or personal representative by the court or through a will.
- You use a financial power of attorney to sign checks or manage another person’s accounts.
- A court order lists you as conservator or guardian of the estate.
If any of these are true, you likely hold fiduciary duties, even if no one used that term when you first agreed to help.
Next step: clarify your role with Smith Marion
If you are wondering who is considered a fiduciary in your situation, or if you realize you may already be in that role, you do not have to sort it out alone.
Smith Marion has supported trustees, executors, POA agents, conservators, beneficiaries, and professional fiduciaries with trusted probate, trust, estate, guardianship, and conservatorship accounting.
You can:
- Fill out an Interest Form for fiduciary assistance or trust and court accounting.
- Schedule a consultation to review your current role and duties.
- Request access to our Fiduciary Assistance Services Guide if it fits your needs.
Bring your documents and your questions. We provide clear accounting, structured support, and experience with court-ready reporting, enabling you to carry out your fiduciary responsibilities with greater confidence and less stress.
Frequently asked questions: Who is considered a fiduciary?
Is a trustee always considered a fiduciary?
Yes. A trustee manages trust assets on behalf of beneficiaries and must act in their best interests. That duty makes a trustee a fiduciary under California law.
Is an executor considered a fiduciary?
Yes. An executor or personal representative is a fiduciary because they control estate assets, pay debts and taxes, and distribute the remaining assets under the will and court orders.
Is someone with power of attorney a fiduciary?
When an agent uses a financial power of attorney to manage money or property, they become a fiduciary. They must use that authority for the benefit of the person who granted it and follow the document’s limits.
Is a financial advisor always a fiduciary?
Not always. Some advisers are held to a fiduciary standard; others are not. This article focuses on fiduciaries under the California Probate Code, such as trustees, executors, POA agents, and conservators.
Is a CPA automatically a fiduciary?
No. A CPA, such as Smith Marion, has professional duties and ethical rules, but is not automatically a fiduciary for all of a client’s affairs. In most trust and estate matters, the CPA supports the fiduciary through accurate accounting rather than acting as the fiduciary.