How Probate Works in Illinois
Illinois recently raised its small-estate affidavit threshold from $100,000 to $150,000 for anyone who died on or after August 15, 2025 — a good reminder that this figure changes, and that an older death may still fall under the earlier cap.
Probate court
Circuit Court, Probate Division
Typical timeframe
9–18 months standard; 6–9 months with independent administration
Small-estate affidavit limit
$150,000
Simplified probate limit
No flat dollar limit — see below
Creditor claim deadline
180 days
Community property state
No
Does Illinois require probate?
Anyone holding a decedent's will must file it with the circuit clerk within 30 days of death, whether or not a full probate estate is opened. Where probate is needed, an executor (or, without a will, a court-appointed administrator) petitions for Letters from the Circuit Court's Probate Division.
How to avoid full probate in Illinois
- Small Estate Affidavit — for personal property up to $150,000 for deaths on or after August 15, 2025 (the cap was $100,000 for earlier deaths). Registered motor vehicles don't count toward the cap at all. Real estate cannot be included — it always requires full probate.
- Independent Administration — not a dollar-threshold shortcut, but lets the executor handle most estate business without repeated court approval whenever the will authorizes it or the heirs consent, regardless of estate size.
The probate process in Illinois
Illinois has no separately named probate court — it's the Probate Division of the Circuit Court in the decedent's county. Illinois also has no centralized state-judiciary probate self-help hub the way New York does; individual counties publish their own guidance.
Creditor claims in Illinois
The personal representative must publish notice once a week for three successive weeks. Unknown creditors are barred if they don't file within 6 months of first publication; creditors known to the representative must be notified directly and have 3 months from that notice, whichever deadline is later. Unlike some states, Illinois's language is a hard bar — a claim not filed by the deadline is barred, not just a fiduciary-liability safe harbor.
Let Estate Assist handle the rest
Estate Assist reads the estate's documents, builds a personalized checklist, and drafts the letters you need — so you're not piecing this together alone.
Start your free action plan →Frequently asked questions
Do I need a lawyer for probate in Illinois?
Not required for a small estate affidavit, but any estate needing a court-supervised proceeding — over $150,000 in personal property, or any real estate — typically benefits from an attorney given Illinois's independent-versus-supervised administration choices and its strict creditor-claim bar.
What happens if there's no will?
The estate passes under Illinois's intestacy statute, and the circuit court appoints an administrator, usually the surviving spouse or next of kin.
My relative's estate is under $150,000 — can I really skip probate?
If it's $150,000 or less in personal property (not counting registered vehicles) and has no real estate, yes — a Small Estate Affidavit can be presented directly to banks and other asset holders without opening a probate case. Double-check the date of death: before August 15, 2025, the cap is $100,000, not $150,000.
Related guides
Probate in other states
Illinois figures checked against Illinois General Assembly — 755 ILCS 5/25-1 (Probate Act of 1975) on July 22, 2026. Probate rules, thresholds, and deadlines change and are frequently adjusted for inflation; confirm current figures before relying on them. Estate Assist provides general information, not legal, financial, or tax advice.