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Illinois Probate Deadlines: Twelve Clocks That Are Law
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Illinois Probate Deadlines: Twelve Clocks That Are Law

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Illinois runs twelve statutory probate clocks, from filing the will immediately to the two-year absolute claims bar. Each one cited, plus the pacing advice.

By Settled Editorial

Illinois writes more of its probate calendar into statute than almost any of its neighbors: twelve clocks with citations and consequences, starting the day of death. The flip side is that very little of the folk wisdom ("you have a year to deal with the will") survives contact with the Probate Act. This post lists the clocks that are law, with the citation for each, then labels the handful of dates that are only our recommended pace. Every figure comes from our Illinois reference data.

The statutory clocks

DeadlineThe clockCitation
File the original will with the Circuit Court clerkImmediately upon death755 ILCS 5/6-1
Named executor petitions or refuses30 days after learning of the nomination755 ILCS 5/6-3
Mail notice of admission or appointment to heirs and legatees14 days after the order755 ILCS 5/6-10, 5/9-5
Prepare the verified inventory60 days after letters issue755 ILCS 5/14-1
Creditor claim dateAt least 6 months after first publication, or 3 months after mailed notice, whichever is later755 ILCS 5/18-3, 5/18-12(a)
Absolute claims bar2 years after death, notice or not755 ILCS 5/18-12(b)
Contest the will6 months after admission to probate755 ILCS 5/8-1
Surviving spouse renounces the will7 months after admission755 ILCS 5/2-8
Elect goods toward the spouse or child award30 days after notice of the award's allowance755 ILCS 5/15-1
First account in supervised administration60 days after the first 12 months of letters755 ILCS 5/24-1
Final income tax returns (Form 1040 and IL-1040)April 15 of the year after deathfederal and Illinois filing rules
Illinois and federal estate tax returns, when required9 months after death35 ILCS 405/6; Internal Revenue Code

The first month

Two clocks start almost immediately. Whoever holds the will files it with the Circuit Court clerk upon the death: filing is free, does not open a case, and sitting on a will is the single cheapest-to-avoid liability in Illinois probate. And the person the will names as executor has 30 days from learning of the nomination to either petition for admission or refuse in writing; do neither and the court may treat the nomination as declined and issue letters of office to someone else.

The notice and inventory clocks

Once the court enters the order admitting the will or appointing a representative, copies of the petition and order go to every heir and legatee named in the petition within 14 days, with publication substituting for anyone whose address is unknown. In the testate case the notice also carries the Supreme Court form explaining the rights to demand formal proof of will and to contest admission. Then the inventory: within 60 days after letters issue, the representative prepares a verified inventory of the real and personal estate under 755 ILCS 5/14-1.

The creditor clocks, short and absolute

Illinois runs two. The working one: claims are barred after the claim date in the published notice, which must sit at least six months after first publication, or three months after mailed notice to a known creditor, whichever is later. Administration expenses and the spouse's or child's award are not barred by it. Behind it stands the absolute one: two years after death, every barrable claim is dead whether or not letters ever issued or any notice was ever given, under 755 ILCS 5/18-12(b). The creditor claims guide covers presentment and contest mechanics.

The family's own clocks

Three deadlines belong to the family rather than the executor. An interested person has six months from the will's admission to contest it. A surviving spouse has seven months from admission to renounce the will and take the statutory share instead: one third of the estate after claims when the decedent left a descendant, one half when not, with an extension possible if the spouse petitions inside the window during pending litigation over the share. And once the spouse or child award is allowed (at least $20,000 for the spouse, plus $10,000 per minor child and $5,000 per adult dependent child residing with the spouse), the election to take part of it in estate goods at appraised value runs 30 days from written notice of the allowance. The surviving spouse rights guide walks through the renunciation math.

The long clocks

Supervised representatives present the first verified account within 60 days after the end of the first twelve months of letters, and after that as the court requires; independent representatives account to the interested persons and file a closing report instead. The tax calendar is the familiar pair: final Form 1040 and IL-1040 by the usual April 15, and estate tax returns nine months after death for estates over the thresholds, Illinois's own exclusion being $4,000,000.

The pacing advice, labeled honestly

  • Order certified death certificates in the first week. Banks, insurers, and the court all want them.
  • Petition for probate when ready. There is no short statutory countdown to open the estate; the clocks above are what make drifting expensive.
  • The small estate affidavit has no waiting period. When no case is open or planned, the 755 ILCS 5/25-1 affidavit collects personal property immediately, which our small estate affidavit guide covers.
  • Publish the claim notice promptly after letters. The requirement is statutory and the six-month clock cannot start until the first publication runs.

How to keep the clocks straight

Four anchor dates run the calendar. The date of death starts the two-year absolute bar and the tax spine. Learning of the nomination starts the executor's 30 days. The order admitting the will starts the 14-day notice, the six-month contest, and the seven-month renunciation. Letters issuing starts the 60-day inventory and the publication clock that sets the claim date. Write those four dates on one page and every deadline above becomes arithmetic. The Illinois probate timeline shows how they fit the overall sequence, and the probate guide covers the process end to end.

Frequently Asked Questions

How long do you have to file a will in Illinois?

Immediately upon death under 755 ILCS 5/6-1, and the named executor has 30 days from learning of the nomination to petition or refuse.

How long do creditors have?

Until the published claim date, set at least six months after first publication or three months after mailed notice, whichever is later, with an absolute bar two years after death.

What is the will contest deadline?

Six months after admission to probate under 755 ILCS 5/8-1.

How long does a spouse have to renounce the will?

Seven months after admission under 755 ILCS 5/2-8, for one third of the estate after claims with a descendant or one half without.

Frequently asked questions

How long do you have to file a will in Illinois?
Immediately. Under 755 ILCS 5/6-1, anyone holding the will must file it with the Circuit Court clerk of the proper county upon the death, and filing the will is free and does not by itself open a probate case. A person named as executor then has 30 days after learning of the nomination to petition for admission or refuse, under 755 ILCS 5/6-3.
How long do creditors have to file claims against an Illinois estate?
The claim date in the published notice must be at least six months after first publication, or three months after mailed notice to a known creditor, whichever is later, under 755 ILCS 5/18-3 and 5/18-12. Whether or not any notice is ever given, every barrable claim dies two years after death under 755 ILCS 5/18-12(b).
What is the deadline to contest a will in Illinois?
Six months after the will is admitted to probate, under 755 ILCS 5/8-1. A petition contesting the denial of admission gets the same six-month window under 5/8-2, and missing the window generally bars the contest.
How long does a surviving spouse have to renounce a will in Illinois?
Seven months after the will is admitted to probate, under 755 ILCS 5/2-8. A renouncing spouse takes one third of the estate after claims if the decedent left a descendant, or one half if not, and the court can extend the window if the spouse petitions inside it while litigation affecting the share is pending.

Information current as of August 22, 2026

Settled Estate is not a law firm, and this content is for informational purposes only and does not constitute legal advice. Probate laws and procedures in Illinois can change. Consult with a qualified attorney for advice specific to your situation. Full disclaimer.

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