Illinois Sheriff Service for Post-Judgment Collection Documents

Your Citation to Discover Assets has been filed and accepted by eFileIL. Now someone has to physically hand it to the debtor. In most Illinois counties, that someone is the County Sheriff's Civil Process Division — and the process is not as simple as dropping off paperwork.

Who Can Serve Post-Judgment Documents

Under 735 ILCS 5/2-202, post-judgment service can be performed by:

• The County Sheriff in the county where the person to be served resides or works
• A licensed private detective or registered employee of a private detective agency — statewide, without a court motion
• Certified or registered mail (return receipt requested) for citations under Supreme Court Rule 277(c)

You do not need a special court order to use a private process server. However, in Cook County, private process servers who serve a summons must remit a $5.00 statutory fee to the County Sheriff under 735 ILCS 5/2-202(a-3).

The Instruction Letter

The sheriff's office will not figure out what to do with your documents on its own. You need to include a cover letter — sometimes called a "service instruction letter" — that tells the deputy exactly what to serve, on whom, and where.

Your letter should include:

• The case caption and docket number
• The name and known address(es) of the person to be served
• A description of the documents enclosed (Citation to Discover Assets, Wage Deduction Summons, etc.)
• Any special instructions (time-sensitive return date, service at a workplace vs. residence)
• Your contact information for return of the proof of service

Keep it factual and short. The sheriff does not need the backstory of your case.

Fees and Deposits

Sheriff service fees for civil process typically run $35 to $75 depending on the county. Some counties require an advance deposit; others bill you after service is attempted. Cook County charges higher fees than most downstate counties.

Under 735 ILCS 5/2-202(d), the court may tax a sheriff's service fee as a cost in the proceeding. It is not automatically added to the judgment balance.

What Happens After Service

Once the sheriff serves the documents, you receive a return of service (proof of service) confirming who was served, when, where, and how. File this with the court through eFileIL. The return of service is your evidence that the debtor or third party was properly notified.

For a Citation to Discover Assets, valid service triggers two immediate consequences: a statutory lien on the respondent's non-exempt property, and an injunction against transferring assets up to double the judgment amount.

If the sheriff cannot locate the person at the address you provided, the return will note the failed attempt. You may need to provide an updated address or try certified mail instead.

Certified Mail as an Alternative

Supreme Court Rule 277(c) allows citation service by prepaid certified or registered mail, return receipt requested. Service is perfected only when the signed green card comes back showing delivery to the addressee. If the debtor refuses the mail or it comes back unclaimed, you will need to try personal service through the sheriff or a process server.

Certified mail is cheaper and sometimes faster than sheriff service, but it relies on the debtor actually accepting the delivery.

The Illinois Judgment Collection Guide includes ready-to-use sheriff instruction letter templates and a service tracking checklist for every enforcement tool.

See more Illinois guides →