The Estate Planning Guide Est. 2026

What Happens If You Die Without a Will in Illinois?

Published June 3, 2026 4 min read

Quick answer

If a married Illinoisan with kids dies without a will, the estate splits 50/50 — half to the spouse, half divided among the kids per stirpes. With no kids, the spouse takes everything.

Educational guide — not legal advice. Intestacy laws change. Confirm specifics with a licensed Illinois attorney before relying on this page.

How intestacy works in Illinois

When someone dies in Illinois without a valid will, 755 ILCS 5/2-1 decides who inherits. The statute orders potential heirs by their relationship to the deceased — spouse and children first, then parents, then more distant relatives — and specifies exactly what share each one receives.

Illinois is NOT a community property state.

What happens when there’s a surviving spouse only (no children, no parents)

Spouse takes the entire estate if no descendants survive.

What happens when there’s a surviving spouse and children

This is the most common situation and where Illinois’s rules get specific:

Spouse takes 1/2; descendants take 1/2 per stirpes. No blended-family carve-out and no off-the-top dollar amount.

For families where everyone is from the same marriage, the spouse generally gets a meaningful share. For blended families — where one or more children are from a prior relationship — many states change the math substantially. If your situation might fit that, the section above is exactly the rule that applies.

What happens when there’s a surviving spouse and parents (no children)

Spouse takes the entire estate; parents take nothing when a spouse survives and there are no descendants.

What happens when there are children but no spouse

Entire estate to descendants per stirpes.

What happens when there’s no spouse and no children

Order: parents and siblings share equally (with a surviving parent taking a double share if one parent has died) → if none, grandparents and their descendants split paternal/maternal halves → great-grandparents → nearest kindred → escheat to the county.

This is where intestacy starts producing results that often surprise people — distant relatives the deceased may not have been close to can end up inheriting, and a long-time unmarried partner inherits nothing.

A Illinois-specific quirk

When there is no spouse or descendants, Illinois unusually pools parents and siblings together at the same level — a surviving parent gets a 'double portion' to compensate for a deceased parent. Half-blood is treated as whole-blood under 755 ILCS 5/2-1(h).

What intestacy can’t do (and why it usually fails most people)

Even when Illinois’s intestacy rules produce a result close to what someone would have chosen, the rules can never:

  • Leave anything to an unmarried partner — intestacy doesn’t recognize unmarried partners regardless of relationship length
  • Leave anything to a step-child you didn’t formally adopt
  • Leave anything to a friend, charity, or specific person outside your family
  • Name a guardian for your minor children — a Illinois judge picks
  • Specify who handles your estate — a court appoints an administrator
  • Identify specific items for specific people
  • Account for blended-family dynamics in nuanced ways
  • Reduce probate costs and time — intestate estates still go through full probate

For most Illinois families, a basic will — costing $300 to $1,500 with a local attorney, or $50 to $300 with an online service — is meaningfully better than the default rules.

What probate looks like in Illinois when there’s no will

If someone dies intestate in Illinois, the estate still goes through probate. A court appoints an administrator (rather than an “executor” — the title is different for intestacy) to:

  1. Inventory the estate’s assets
  2. Notify creditors and pay debts
  3. Identify legal heirs under Illinois’s intestacy statute
  4. Distribute remaining assets to heirs according to the statute

For details on what probate costs and how long it takes in Illinois, see:

What to do this week if you don’t have a will

The most useful single move for any Illinois adult without a will:

  1. Write a basic will. Either through an online service ($50-$300) or a local attorney ($300-$1,500). Name an executor, name a guardian for any minor children, and specify who inherits what.
  2. Update beneficiary designations on retirement accounts, life insurance, and POD/TOD bank accounts. These pass outside both the will and intestacy.
  3. Sign a financial power of attorney and a healthcare directive. These handle incapacity (not death) and prevent your family from needing court-appointed guardianship.

For a Illinois family with a typical estate, this whole package usually costs under $1,500 and takes a couple of weeks of intermittent work. It’s substantially cheaper and less stressful than what happens if you don’t do it.

This page explains Illinois intestacy law in general terms as of 2026. It is not legal advice; intestacy provisions, dollar thresholds, and statute citations can change. Confirm current rules with a licensed Illinois attorney before relying on this page. Sources: 755 ILCS 5/2-1.

Related guides