DuPage County Probate: Filing Fees, Courthouse, and Local Procedures

DuPage County handles probate matters through its 18th Judicial Circuit Court, and the experience is meaningfully different from Cook County—lower filing fees, different local forms, and a mandatory e-filing requirement that catches many executors off guard. If the decedent lived in Wheaton, Naperville, Downers Grove, or anywhere else in DuPage County, this is the courthouse you will be dealing with.

Where DuPage County Probate Is Filed

All probate matters in DuPage County are filed with the DuPage County Circuit Court Clerk. The courthouse address is:

DuPage County Judicial Center 505 N. County Farm Road Wheaton, IL 60187

The Probate Division operates within the Circuit Court Clerk's office. Executors and attorneys must file petitions, inventory documents, and closing papers through this office. For preliminary questions about procedural requirements—not legal advice—the Circuit Court Clerk's office can be reached by phone.

DuPage County Probate Filing Fees

The initial filing fee for a probate estate in DuPage County is $298.00 as of 2026. This covers the Administration of a Decedent's Estate petition and is substantially lower than Cook County's $479 base fee.

Additional costs to budget for:

• Certified copies of Letters of Office: Each certified copy carries a per-page fee. You will typically need 6–10 certified copies to present to banks, title companies, the Secretary of State, and other institutions.
• Publication of Notice to Creditors: Under 755 ILCS 5/18-3, the executor must publish a creditor notice in a local newspaper once per week for three consecutive weeks. In DuPage County, publication typically runs in a local paper of general circulation. Budget approximately $150–$300 for this publication depending on the paper.
• Surety bond premium: If the will does not waive the surety bond, or if the estate is intestate, the executor must purchase a surety bond under 755 ILCS 5/12-5. The bond amount is set at 1.5× the value of the personal estate (corporate surety) or 2.0× (individual sureties). Bond premiums typically run 0.5% of the total estate value annually.
• Attorney fees: DuPage County probate attorneys typically charge $3,000–$7,000 for a straightforward uncontested estate.

E-Filing in DuPage County

DuPage County enforces mandatory electronic filing for all attorneys. All petitions, orders, and court documents submitted by counsel must go through the state's Odyssey eFileIL system (efileil.com). Paper filings from attorneys are rejected.

There is one important exception: original wills cannot be e-filed. Under Illinois Supreme Court rules, original testamentary documents are exempt from the electronic filing mandate. The original paper will must be physically delivered to the Circuit Court Clerk's office. Scanning and e-filing a copy is not acceptable—if the original is lost after scanning, the estate faces significant evidentiary hurdles to probate the copy.

Self-represented individuals (pro se filers) may seek an exemption from e-filing if they lack access to the required technology. However, as discussed below, pro se representation in formal DuPage County probate proceedings is legally prohibited under the Mattson precedent.

The Mattson Rule and Attorney Requirement

In DuPage County, as throughout Illinois, the 2019 In re Estate of Mattson decision (2019 IL App (1st) 180805) prohibits non-attorneys from representing a decedent's estate in formal probate proceedings. Because an executor acts in a fiduciary capacity—representing the legal interests of heirs, creditors, and beneficiaries—appearing pro se in probate court constitutes the unauthorized practice of law.

This rule applies across DuPage County regardless of estate size. If your estate must go through formal probate (rather than the Small Estate Affidavit route), you will need to retain an Illinois-licensed attorney to file the petition and appear at any court hearings.

What you can do without an attorney: physically lodge the original will with the DuPage County Circuit Court Clerk, present a Small Estate Affidavit to financial institutions for qualifying estates, and manage the day-to-day administrative tasks of the estate (communicating with creditors, opening an estate bank account, gathering asset documentation).

Does Your DuPage County Estate Qualify for a Small Estate Affidavit?

Before opening a formal probate case, evaluate whether the estate qualifies for the Small Estate Affidavit under 755 ILCS 5/25-1. The 2026 threshold is $150,000 in personal property.

Key rules:

• Vehicles are excluded from the $150,000 calculation as of August 2025. A car or truck registered with the Illinois Secretary of State does not count toward the limit.
• Real estate is never eligible. If the decedent owned real property titled solely in their name—even a small parcel—formal probate is mandatory. The Small Estate Affidavit cannot transfer real estate under any circumstances.
• No court filing required for a qualifying Small Estate Affidavit. You present the notarized affidavit directly to the financial institution, which is legally compelled to release the funds under the statute.

For DuPage County estates with real property or personal assets exceeding $150,000, formal probate through the 18th Judicial Circuit is the path forward.

The DuPage County Probate Timeline

The statutory timeline for DuPage County probate mirrors the Illinois Probate Act of 1975 (755 ILCS 5), with no county-specific deviations on core deadlines:

The minimum realistic timeline for an uncontested DuPage County probate estate is 9–12 months, driven primarily by the mandatory six-month creditor waiting period.

Independent vs. Supervised Administration in DuPage County

Most DuPage County probate estates proceed under independent administration (755 ILCS 5/28-1), which allows the executor to manage the estate, sell property, and make distributions without seeking court approval for individual transactions. This significantly reduces legal fees and court appearances.

Supervised administration is generally reserved for:

• Estates involving unrepresented minor heirs
• Disputes among beneficiaries requiring judicial oversight
• Intestate estates where an heir demands supervised administration

If the will authorizes independent administration—which well-drafted Illinois wills typically do—your attorney will request this designation when filing the initial petition.

Comparing DuPage and Cook County Probate

Executors who have heard about Cook County's Probate Division often wonder how DuPage County differs:

The lower filing fee and less expensive publication costs make DuPage County probate meaningfully cheaper than Cook County for comparable estates.

Getting Organized Before You File

The single most effective way to reduce attorney fees in DuPage County probate is to arrive at the first consultation with organized documentation. Attorneys bill by the hour; time spent gathering what you should have brought is expensive time.

Before your first meeting, collect: the original will, at least 10 certified copies of the death certificate, a complete list of assets (bank accounts, brokerage accounts, real estate, vehicles) with approximate values, all outstanding debts and creditor statements, and the contact information for all heirs and beneficiaries.

The Illinois Probate Process Guide includes the exact document checklist for DuPage County executors, county-specific fee breakdowns, and a step-by-step timeline that maps the entire process from the first 30 days through final discharge.

Get the complete guide at /us/illinois/probate/

See more Illinois guides →