Glossary term

Laws of Intestacy

Laws of intestacy are state default rules that determine who inherits probate property when someone dies without a valid will or trust disposition.

Updated

May 22, 2026

Read time

3 min read

What Are Laws of Intestacy?

Laws of intestacy are state default rules that determine who inherits probate property when someone dies without a valid will or trust disposition. A person who dies without a valid will is often described as dying intestate.

Intestacy rules are not a personal estate plan. They are a legal fallback. The rules usually prioritize surviving spouses, children, parents, siblings, and more remote relatives, but the exact order and shares depend on state law and family structure.

Key Takeaways

  • Intestacy laws distribute probate property when there is no valid will controlling that property.
  • State law decides the heirs and shares.
  • Spouses, descendants, parents, and siblings often appear near the top of the order.
  • Nonprobate assets may pass by beneficiary designation, title, or trust instead of intestacy.
  • Intestacy can produce results that differ sharply from family expectations.

How Intestacy Works

When a person dies intestate, the probate court identifies the property subject to probate and applies the state's intestacy statute. The court may appoint a personal representative, confirm heirs, settle debts, and distribute remaining property according to the statute.

The rules can be straightforward for a simple family structure. They can become difficult with blended families, children from prior relationships, unmarried partners, estranged relatives, adopted children, stepchildren, posthumous children, and disputed parentage. State law controls how those relationships are treated.

What Intestacy Usually Does and Does Not Cover

Asset or decision

Typical treatment

Probate property without a will

Distributed under state intestacy law

Life insurance with beneficiary

Passes to named beneficiary

Retirement account with beneficiary

Passes under plan and beneficiary rules

Joint tenancy property

May pass to surviving joint owner

Guardianship preferences

Not fully controlled by intestacy shares

Financial Consequences

Intestacy can create cost, delay, and conflict. Probate may take longer when heirs must be located and shares must be determined. Family members may disagree over who should administer the estate, what property belongs in probate, and whether the statutory distribution is fair.

The financial result may also be inefficient. A surviving spouse might not receive everything. Minor children may inherit property in a way that requires court supervision. A family business or real estate interest may be split among heirs who do not agree about whether to sell, operate, or hold the asset.

Common Misunderstandings

One common misunderstanding is that a surviving spouse always receives the entire estate. That may be true in some situations, but not all. Another is that an unmarried partner automatically inherits like a spouse. In many states, an unmarried partner receives nothing through intestacy unless another legal arrangement applies.

Another misconception is that intestacy controls all assets. It usually controls probate property. Beneficiary designations, payable-on-death accounts, transfer-on-death deeds, trusts, and joint ownership can override the intestacy path for those assets.

Estate Planning Context

A will or revocable trust lets a person choose beneficiaries, name fiduciaries, plan for minors, coordinate tax and basis issues, and reduce uncertainty. Even a simple estate plan can be more precise than relying on statutory defaults.

Intestacy statutes are useful because the legal system needs a default rule. They are not designed to know a family's values, promises, caregiving history, charitable goals, or business realities.

The rules can also interact awkwardly with taxes and liquidity. An heir may receive a fractional interest in illiquid property, while the estate still needs cash for debts, expenses, maintenance, and administration. A written plan can give the fiduciary more direction before those pressures appear.

The Bottom Line

Laws of intestacy are the state default inheritance rules for probate property when no valid estate-planning document controls. They provide a necessary fallback, but they can create results that are slower, less flexible, and less aligned with the deceased person's actual wishes.

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