DefineLaw

What is a fiduciary?

A fiduciary is someone legally bound to act in another’s best interest.

Why it matters

Trustees, executors, and guardians owe this high standard of care.

Common confusion

A fiduciary must put the other’s interest first, above their own.

DefineLaw editors — plain-English definitions for general reference; not a substitute for advice from a licensed attorney.

Frequently Asked Questions

Who is a fiduciary?

Trustees, executors, guardians, and some agents under a POA.

What happens if they breach?

They can be removed and forced to repay losses.

Is my financial advisor a fiduciary?

Not always — it depends on their legal duty.

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