# Decedent: Definition and How It Works in California

> A decedent is the person who has died, in the language of wills, trusts, probate, and tax returns.

Source: https://ridleylawoffices.com/estate-planning-glossary-california/decedent/

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

A **decedent** is the person who has died, in the language of wills, trusts, probate, and tax returns. Court papers and statutes use the word for the person whose estate is being settled, rather than a more casual term.

## How it works in California

Every probate petition, trust administration notice, and estate tax return uses “decedent” to identify the person who died, whether or not that person left a will. The phrase runs throughout the Probate Code: the decedent’s will, the decedent’s heirs, the decedent’s creditors.

The word carries no assumption about whether the decedent left a will, died with a plan in place, or died with debts exceeding assets. It’s simply the neutral, consistent way legal documents refer to the person who died, so a reader can tell at a glance which role in the estate belongs to which person.

## Why it matters

For example, a probate petition refers throughout to “the decedent” rather than using the person’s first name, because the document has to work the same way whether the decedent left a detailed estate plan or no plan at all. Using the term consistently also keeps a filing from being confused with other documents about other deceased family members in the same file.

## Common mistakes

Assuming “decedent” implies a will exists, when it just means the person has died. Mixing up “decedent” with “testator,” which means the person who made a will. Using the term inconsistently within the same document, which can create ambiguity about which deceased person a filing is discussing when more than one is involved.

## Related terms

- [Administrator](https://ridleylawoffices.com/estate-planning-glossary-california/administrator/): who the court appoints to run the decedent’s estate when there’s no will or no willing executor.
- [Heir](https://ridleylawoffices.com/estate-planning-glossary-california/heir/): a person entitled to inherit from the decedent when there’s no will covering an asset.
- [Personal Representative](https://ridleylawoffices.com/estate-planning-glossary-california/personal-representative/): the person with legal authority to act for the decedent’s estate.
- [Testator](https://ridleylawoffices.com/estate-planning-glossary-california/testator/): the person who made a will, whether alive or after death.

Part of the [California estate planning glossary](https://ridleylawoffices.com/estate-planning-glossary-california/).