Chicago DUI Penalties

The direct fines are only a fraction of the true cost of an Illinois first-offense DUI. A realistic total for a first-offense conviction (not supervision) runs $15,000 to $20,000 over the first three years. That includes fines and court costs ($1,500 to $3,000), attorney fees, alcohol evaluation and treatment ($500 to $2,000), DUI risk education ($500), BAIID installation and monitoring for the MDDP period (roughly $1,200 to $1,800), SR-22 insurance surcharge over 36 months (often $4,000 to $8,000 above baseline premiums), license reinstatement fees ($500 range), and lost wages from court dates and license restrictions. Court supervision cuts a large portion of the insurance and reinstatement cost by avoiding the revocation entirely.

Court supervision under 730 ILCS 5/5-6-1(c) is a sentencing disposition that is not a conviction. If the defendant successfully completes the supervision period (typically 12 to 24 months on a DUI), the case is dismissed and no DUI conviction goes on the criminal record. Court supervision is available only once per lifetime for DUI in Illinois. Costs include the base fine ($500 to $1,500 typical), court costs and mandatory assessments ($400 to $700), alcohol evaluation ($300 to $500), DUI risk education (up to $500), Victim Impact Panel ($25 to $50), and community service placement fees. Total out-of-pocket typically runs $1,800 to $3,500. License revocation does not attach to supervision, which is the key advantage over a straight conviction.

Base first-offense DUI has no mandatory community service under 625 ILCS 5/11-501(c)(1). Enhancements change that. The high-BAC enhancement at 0.16 or above requires a mandatory minimum of 100 hours of community service as an alternative to the 2-day jail floor. A DUI with a passenger under 16 adds 25 days of community service in a program benefiting children. Court supervision terms in Cook County commonly include a discretionary community service component set by the judge, typically 40 to 80 hours. Verified nonprofit or municipal placements are required, and hours are documented through official completion forms filed with the court. Failure to complete court-ordered service can result in a violation, revocation of supervision, and a formal conviction.

Driving under the influence with a passenger under age 16 triggers major enhancements under 625 ILCS 5/11-501(c)(3). On a first offense with no injury to the child, the base misdemeanor DUI adds a mandatory $1,000 fine and 25 days of community service in a program benefiting children. If the DUI causes great bodily harm, permanent disability, or disfigurement to the child, the charge elevates to aggravated DUI under 625 ILCS 5/11-501(d)(1)(K), a Class 4 felony with 1 to 3 years in state prison. A second DUI offense with any child passenger becomes a Class 4 felony automatically. Illinois DCFS is typically notified in child-passenger DUI cases and may open a separate parental fitness inquiry.

The Illinois high-BAC enhancement applies when the driver's BAC is 0.16 or higher at the time of testing. On a first-offense DUI, the enhancement adds a mandatory minimum $500 fine and a mandatory minimum 100 hours of community service under 625 ILCS 5/11-501(c)(3). On a second offense, the enhancement adds a mandatory minimum $1,250 fine and mandatory minimum 2 days of imprisonment. On a third offense, mandatory minimum jail rises to 90 days and the fine to $2,500. The enhancement is triggered by the number itself, not by whether the driver appeared unusually impaired. Blood, breath, or urine tests all count for enhancement purposes. Testing chain-of-custody and calibration challenges become critical when BAC is near the threshold.

A first Illinois DUI conviction triggers a mandatory 1-year revocation of driving privileges under 625 ILCS 5/6-205. Revocation is different from the Statutory Summary Suspension, which is a separate 6-month (or 12-month for refusal) administrative action that runs before or alongside the criminal case. Revocation begins on the date of conviction and requires the driver to complete an alcohol evaluation, treatment recommendations, and a formal or informal reinstatement hearing before the Secretary of State to get driving privileges back. There is no automatic reinstatement. Court supervision, when granted, is not a conviction and does not trigger revocation. That is the primary reason court supervision is the target outcome for first-time defendants where possible.

A first-offense Illinois DUI is a Class A misdemeanor with maximum exposure of up to 364 days in county jail under 625 ILCS 5/11-501(c)(1). In practice, first-time offenders rarely receive jail time on a base misdemeanor DUI. Court supervision or conditional discharge with no jail is the typical Cook County outcome for a clean-record defendant. Jail exposure increases sharply with enhancements: the high-BAC enhancement at 0.16 or above triggers a mandatory minimum 100 hours of community service or 2 days in jail. A DUI with a child passenger under 16 causing great bodily harm becomes a Class 4 felony with 1 to 3 years in state prison. Aggravated DUI charges under 625 ILCS 5/11-501(d) carry mandatory prison time.

A first-offense Illinois DUI is a Class A misdemeanor under 625 ILCS 5/11-501(c)(1), carrying a maximum fine of $2,500. Typical fines imposed in Cook County range from $500 to $1,500 depending on BAC, driving record, and whether the case resolves as court supervision or conviction. Court costs and mandatory assessments add several hundred more, including the DUI Equipment Fund, the Trauma Fund, and the Roadside Memorial Fund. The high-BAC enhancement at 0.16 or above adds a mandatory minimum $500 fine on top of any base fine. Child-passenger DUI adds a mandatory $1,000 fine. Total out-of-pocket cost for a first offense including fines and court costs typically lands between $1,500 and $3,000.