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First Steps After a Death in Illinois

A practical sequence for the first days and weeks after a death, built around the Illinois estate administration touchpoints: the Clerk of the Circuit Court, the small estate affidavit, and the Probate Act of 1975.

If You Are the Named Executor in Illinois

If you are the named executor, personal representative, or the family member organizing an Illinois estate, start with the records and court tasks below at a steady pace. Each step links to its full instructions in the timeline.

  1. Find the original will and file it with the Circuit Court Clerk
  2. Order certified death certificates
  3. Make a first asset and debt list
  4. Decide whether probate is needed at all
  5. Petition for letters of office in the Circuit Court

Some tasks can wait a few days. Start with safety, family needs, the original will, and certified death certificates. Illinois gives you no deadline for opening an estate, but it does require the will to be filed right away.

Timeline of Tasks

Start with the immediate tasks. Open each later phase as you reach it.

First 24 to 72 Hours

Get a legal pronouncement and arrange for the body
A medical professional must pronounce the death. If the death was expected under hospice care, the hospice nurse can pronounce it; if it was unexpected, call 911. Then choose a licensed Illinois funeral director or cremation provider to transport and care for your loved one and to file the death certificate with the local registrar.
Secure the home, the vehicles, and the valuables
Lock the residence, keep homeowner and auto insurance and the utilities active, and do not give away or sell anything yet. Illinois real estate stays subject to estate administration until debts are settled, and a small estate affidavit cannot transfer real estate at all.
Find the original will and file it with the Circuit Court Clerk
Whoever holds the decedent's will must file the original with the Clerk of the Circuit Court of the proper county immediately upon the death (755 ILCS 5/6-1). Filing the will is mandatory and free in most counties, and it does not by itself open a probate case. Wilfully altering or destroying a will, or secreting it for 30 days after learning of the death, is punished on conviction as theft classified as a Class 3 felony.
Gather the documents that everything else depends on
Look for codicils, trust agreements, deeds and any recorded transfer on death instrument, vehicle titles, bank and brokerage statements, retirement and life insurance beneficiary forms, and recent tax returns. These decide whether an estate needs to be opened at all.

First Week

Order certified death certificates
Certified copies come from the Illinois Department of Public Health, Division of Vital Records, or from the county clerk of the county where the death occurred. IDPH charges $19 for the first certified copy and $4 for each additional copy of the same record ordered at the same time. The funeral director usually orders the first batch. Order more than you expect to need, because banks, insurers, the Secretary of State, and the court each want one.
Identify the right Illinois county
An Illinois estate is opened in the Circuit Court of the county where the decedent resided (755 ILCS 5/5-1). Illinois has no separate probate court. Cook County and other large circuits run a dedicated Probate Division; smaller counties hear probate cases on the general civil docket. Filings go to the Clerk of the Circuit Court for that county.
Make a first asset and debt list
Separate probate assets, meaning property titled in the decedent's name alone with no beneficiary, from nonprobate assets such as joint tenancy property, payable on death and transfer on death accounts, life insurance and retirement accounts with named beneficiaries, trust property, and real estate covered by a recorded transfer on death instrument. This list drives the choice between an affidavit and a court case.
Check whether a named executor has to act
A person named as executor in the will must either petition to admit the will to probate or file a declination within 30 days after learning of the nomination (755 ILCS 5/6-3). Missing that window without good cause lets the court treat the nominee as disqualified and appoint someone else.

First Month

Decide whether probate is needed at all
Illinois has three paths. The small estate affidavit under 755 ILCS 5/25-1 collects personal property with no court case: for deaths on or after August 15, 2025 the personal estate other than motor vehicles registered with the Secretary of State must not exceed $150,000, and for earlier deaths the prior $100,000 gross personal estate limit applies. There is no waiting period, the affidavit must be notarized, and no letters of office may be outstanding or contemplated. Summary administration under 755 ILCS 5/9-8 is a court shortcut for a real and personal estate of $100,000 or less with written consent from every heir and legatee. Everything else needs full administration.
Petition for letters of office in the Circuit Court
File a petition for letters testamentary if there is a will (755 ILCS 5/6-2) or letters of administration if there is not (755 ILCS 5/9-4). Most Illinois estates request independent administration under Article XXVIII, which lets the representative act without court approval for most steps and close with a verified report; the court grants it unless the will forbids it or an interested person successfully objects (755 ILCS 5/28-2). Illinois publishes no statewide probate forms, so use the petition and letters forms published by the circuit clerk for your county.
Mail notice to heirs and legatees within 14 days
Not more than 14 days after the order admitting the will or appointing a representative, the petitioner or representative must mail each heir and legatee a copy of the petition and the order, with an explanation of the right to demand formal proof of the will and to contest it (755 ILCS 5/6-10; 755 ILCS 5/9-5). Proof of that mailing is filed with the clerk.
Get an EIN and open an estate bank account
Apply for a free estate EIN from the IRS, then open an account in the estate's name, such as 'Estate of Jane Doe.' Keep estate money completely separate from your own and keep a receipt for every payment and distribution. Banks generally want recently certified letters of office, so plan on buying several certified copies from the clerk.

Ongoing Administration

Prepare the inventory within 60 days after letters issue
Within 60 days after letters of office issue, the representative must prepare a verified inventory of the real and personal estate and any right of action (755 ILCS 5/14-1). Property discovered later goes in a supplemental inventory within 60 days of discovery. A supervised representative files the inventory with the court; an independent representative instead delivers it to interested persons (755 ILCS 5/28-6).
Publish the claim notice and run the six month claim period
The representative publishes a claim notice once a week for 3 successive weeks in a newspaper of the county and mails or delivers notice to each known or reasonably ascertainable creditor. The claim date stated in the notice must be at least 6 months after first publication, or 3 months after mailed notice to a known creditor, whichever is later (755 ILCS 5/18-3; 755 ILCS 5/18-12(a)). Separately, every claim that could be barred is cut off 2 years after the death whether or not letters ever issue (755 ILCS 5/18-12(b)).
Notify Social Security, banks, insurers, and government agencies
Report the death to the Social Security Administration at 1-800-772-1213, notify each bank and brokerage, file life insurance claims, and contact pension and retirement plan administrators. Transfer or retitle vehicles through the Illinois Secretary of State, which has its own paths for a named transfer on death beneficiary, a surviving joint owner, a surviving spouse, and a small estate affidavit.
Watch the family rights and contest deadlines
A surviving spouse who renounces the will takes 1/3 of the estate after claims if the decedent left a descendant, or 1/2 if not, and must file the signed renunciation within 7 months after the will is admitted to probate (755 ILCS 5/2-8). A will contest must be filed within 6 months after admission (755 ILCS 5/8-1). The spouse's award is at least $20,000, plus $10,000 for each minor child and $5,000 for each adult dependent child (755 ILCS 5/15-1(a), 5/15-1(a-5)), and it is paid ahead of general creditors.
File the tax returns and close the estate
Handle the decedent's final federal Form 1040 and Illinois Form IL-1040, plus federal Form 1041 and Illinois Form IL-1041 if the estate earns income. Illinois has its own estate tax with a $4,000,000 exclusion for deaths on or after January 1, 2013; the return goes to the Illinois Attorney General and payment goes to the Illinois State Treasurer, due 9 months after death with any federal extension (35 ILCS 405/6). An independent representative closes by mailing a final accounting to interested persons and filing a verified closing report (755 ILCS 5/28-11).

Who to Notify

Social Security Administration
Call 1-800-772-1213
Employer / HR Department
Phone call or email
Banks & Credit Unions
Visit branch with death certificate
Insurance Companies
Call policy customer service
Credit Card Companies
Call number on card
Utility Companies
Call to transfer or cancel
DMV / Vehicle Registration
Visit in person or online
Post Office
Submit change of address form

Documents to Gather

Death Certificates

Many estates start with 10-15 certified copies because banks, insurers, property-transfer contacts, and agencies may ask for them.

How to get death certificates →

Will & Trust Documents

Look in safe deposit boxes, home safes, attorney files, and records folders.

Probate guide →

Financial Statements

Bank statements, investment accounts, retirement accounts, and recent tax returns.

Asset transfer guide →

There is no rush on this. When you are ready, a short assessment can help you see whether probate is needed.

What Comes Next?

After the first 30 days, you may need to start probate or transfer assets. The Illinois probate guide walks through what usually comes next.