Last updated: September 9, 2026
Quick Answer: Illinois DUI penalties escalate sharply with each conviction. A first offense is a Class A misdemeanor carrying up to 364 days in jail, fines up to $2,500, and a minimum one-year license suspension. A second offense adds mandatory jail time and a five-year license revocation. A third offense becomes a Class 2 felony with up to seven years in prison. This Illinois DUI penalty chart covering 1st, 2nd, and 3rd offenses gives you a clear breakdown of what Illinois law requires at each level.
Key Takeaways
- A first DUI in Illinois is a Class A misdemeanor, but it still creates a permanent criminal record.
- The blood alcohol concentration (BAC) legal limit in Illinois is 0.08% for most drivers; commercial drivers face a 0.04% limit.
- A second DUI conviction requires a mandatory minimum of five consecutive days in jail or 240 hours of community service.
- A third DUI conviction is a Class 2 felony, punishable by three to seven years in prison.
- Refusing a breathalyzer triggers an automatic statutory summary suspension, separate from any criminal penalties.
- DUI convictions in Illinois are never eligible for expungement and stay on your criminal record permanently.
- A DUI with a child under 16 in the vehicle adds mandatory jail time and separate felony charges.
- Total out-of-pocket costs for a first DUI, including fines, fees, and insurance increases, can easily exceed $15,000 to $20,000.
- Illinois does not have a separate DWAI charge; DUI is the only impaired driving offense category.
- A Monitoring Device Driving Permit (MDDP) with a Breath Alcohol Ignition Interlock Device (BAIID) may allow limited driving after a first offense suspension.
What Are the Penalties for a First DUI in Illinois
A first DUI offense in Illinois is charged as a Class A misdemeanor under 625 ILCS 5/11-501. The maximum sentence is up to 364 days in jail and a fine of up to $2,500, though judges often impose probation for first-time offenders with no aggravating factors.
For a detailed breakdown of first-offense charges, see First Offense DUI Illinois: Know The Charges You Face.
First offense penalties at a glance:
- Jail: Up to 364 days (no mandatory minimum for a standard first offense)
- Fine: Up to $2,500 (plus court assessments that can triple the actual cost)
- License suspension: Minimum one year for a first-time DUI conviction (separate from the statutory summary suspension)
- Probation: Up to two years
- Alcohol/drug evaluation and treatment program required
- BAIID installation required to drive during suspension via a Monitoring Device Driving Permit
Aggravating factors that increase first-offense penalties:
- BAC of 0.16% or higher: Mandatory minimum 100 hours of community service and a $500 fine
- Driving a school bus with passengers: Class 4 felony
- Causing bodily harm: Enhanced charges may apply
Illinois DUI Penalty Chart: 1st, 2nd, 3rd Offense Compared
The table below summarizes the core penalties under Illinois law for each offense level. This Illinois DUI penalty chart for 1st, 2nd, and 3rd offenses is based on 625 ILCS 5/11-501 and related statutes.
| Factor | 1st Offense | 2nd Offense | 3rd Offense |
|---|---|---|---|
| Charge Class | Class A Misdemeanor | Class A Misdemeanor | Class 2 Felony |
| Max Jail / Prison | Up to 364 days | Up to 364 days | 3-7 years |
| Mandatory Minimum Jail | None (standard) | 5 consecutive days or 240 hrs community service | 10 days or 480 hrs community service |
| Max Fine | $2,500 | $2,500 | $25,000 |
| License Action | Minimum 1-year suspension | Minimum 5-year revocation | Minimum 10-year revocation |
| BAIID Required | Yes (for MDDP) | Yes (for RDP after revocation) | Yes (if reinstatement granted) |
| Probation Eligible | Yes | Yes | Yes, but not in lieu of minimum jail |
How Much Jail Time for a Second DUI Offense in Illinois
A second DUI conviction in Illinois still qualifies as a Class A misdemeanor, but it carries a mandatory minimum of five consecutive days in jail or 240 hours of community service. There is no option to avoid this minimum through probation alone.
Additional second-offense consequences include:
- A minimum five-year license revocation (not just a suspension)
- Mandatory alcohol/drug treatment
- BAIID requirement for any Restricted Driving Permit (RDP)
- If the second offense occurs within five years of the first, the mandatory minimum jail term applies without exception
Common mistake: Many people assume a second DUI can be fully resolved with probation and fines. Under Illinois law, the mandatory minimum incarceration or community service requirement cannot be waived by a judge.
Third DUI Conviction Illinois: Penalties and Fines
A third DUI conviction in Illinois is a Class 2 felony, which carries a sentencing range of three to seven years in the Illinois Department of Corrections. The maximum fine rises to $25,000, and the minimum license revocation is ten years.
For context on how felony classes work in Illinois, see What Are Felony Classes in Illinois? A Complete Guide.
Key third-offense facts:
- A mandatory minimum of 10 days in jail or 480 hours of community service applies even if probation is granted
- A fourth DUI is a Class 2 felony with a mandatory prison term (no probation)
- A fifth DUI is a Class 1 felony; a sixth or subsequent DUI is a Class X felony
- Lifetime driver’s license revocation becomes a real possibility; see Demystifying Lifetime Driver License Revocation in Illinois
Illinois DUI License Suspension: How Long for a First Offense
For a first DUI conviction, Illinois imposes a minimum one-year driver’s license suspension. This is separate from the Statutory Summary Suspension, which takes effect automatically 46 days after a DUI arrest if you fail or refuse chemical testing.
For more on how the suspension process works, read DUI in Illinois: Will My Driver License Be Suspended?
Statutory Summary Suspension timelines (first offense, no prior DUI in five years):
- Failed BAC test (0.08% or higher): 6-month suspension
- Refused testing: 12-month suspension
A first-time offender may apply for a Monitoring Device Driving Permit (MDDP) to drive with a BAIID installed during the suspension period. This permit is not available for subsequent offenses.
What Is the Blood Alcohol Limit for DUI in Illinois
Illinois sets the standard BAC limit at 0.08% for non-commercial drivers age 21 and older. Drivers are considered legally impaired at or above this threshold, regardless of whether they feel impaired.
BAC limits by driver category:
- Standard drivers (21+): 0.08%
- Commercial vehicle drivers (CDL holders): 0.04%, see Consequences of CDL Traffic Ticket in Illinois
- Drivers under age 21: Any detectable amount (Illinois has a zero-tolerance law)
- School bus drivers: 0.00% (zero tolerance)
Illinois also allows DUI charges based on impairment from drugs, prescription medications, or cannabis, even when BAC is below 0.08%. A driver can be arrested for DUI without any measurable alcohol if an officer observes signs of impairment.
What Is the Difference Between DUI and DWAI in Illinois
Illinois does not have a separate DWAI (Driving While Ability Impaired) charge. Unlike some states that use DWAI as a lesser offense for BAC levels between 0.05% and 0.07%, Illinois uses DUI as the single standard for all impaired driving offenses.
This means there is no “lesser” impaired driving charge available as a plea option in Illinois. A driver with a BAC between 0.05% and 0.07% can still be charged with DUI if the officer has other evidence of impairment, such as field sobriety test results or observed driving behavior.
Can You Get Probation Instead of Jail for DUI in Illinois
Yes, probation is available for first and second DUI offenses in Illinois, but it does not eliminate all consequences. For a first offense, a judge may sentence a defendant entirely to probation (up to two years) with no jail time, provided no aggravating factors apply.
For a second offense, probation is possible, but the mandatory minimum of five consecutive days in jail or 240 hours of community service still applies alongside any probation term. For a third offense (Class 2 felony), probation may be granted, but the mandatory 10-day minimum or 480 hours of community service cannot be waived.
Court Supervision (first offense only): Illinois allows first-time DUI offenders to petition for court supervision, which, if successfully completed, does not result in a conviction on the criminal record. However, it still counts as a prior DUI for purposes of future charging decisions and still triggers the license suspension. Court supervision is available only once in a lifetime for DUI.
How Much Does a DUI Cost in Illinois: Total Fees and Fines
The statutory fine for a first DUI is up to $2,500, but the true cost is far higher. When court fees, mandatory programs, BAIID installation, insurance increases, and attorney fees are added together, a first DUI in Illinois typically costs between $15,000 and $25,000 over several years.
Estimated cost breakdown for a first offense:
- Court fines and assessments: $1,500,$5,000
- Attorney fees: $2,500,$10,000 (varies widely)
- BAIID installation and monthly monitoring: $800,$1,500
- Alcohol evaluation and treatment: $500,$2,000
- Driver’s license reinstatement fee: $500
- Auto insurance premium increases: $3,000,$8,000 over three to five years
These are estimates based on typical ranges reported by Illinois legal practitioners. Actual costs depend on the county, the specific charges, and whether the case goes to trial.
What Happens If You Refuse a Breathalyzer Test in Illinois
Refusing a breathalyzer or other chemical test in Illinois triggers an automatic Statutory Summary Suspension under the state’s implied consent law (625 ILCS 5/11-501.1). For a first offense with no prior DUI in the past five years, the refusal suspension is 12 months, compared to 6 months for a failed test.
For a second or subsequent offense within five years, refusal results in a three-year suspension, compared to one year for a failed test.
Key points about refusal:
- Refusal cannot be used as proof of guilt at trial, but prosecutors can mention it
- The suspension is civil, not criminal, and begins 46 days after arrest
- You may challenge the suspension at a judicial hearing within 90 days of arrest
- Refusing does not prevent a DUI conviction if other evidence exists
Illinois DUI Penalties If You Caused an Accident
A DUI that results in bodily harm or death carries significantly enhanced penalties beyond the standard Illinois DUI penalty chart for 1st, 2nd, and 3rd offenses. These charges are classified as aggravated DUI under 625 ILCS 5/11-501(d).
Aggravated DUI involving an accident:
- Causing great bodily harm: Class 4 felony (1-3 years prison)
- Causing permanent disability or disfigurement: Class 4 felony
- DUI causing death (reckless homicide): Class 2 felony (3-14 years prison per victim)
- DUI causing death of two or more people: Class 2 felony with mandatory prison term
A conviction for aggravated DUI causing death requires mandatory prison time with no possibility of probation. These cases are prosecuted aggressively, and the consequences extend well beyond the standard penalty chart.
Does a DUI Stay on Your Record in Illinois Forever
Yes. A DUI conviction in Illinois is permanent and cannot be expunged or sealed. Illinois law explicitly prohibits the expungement of DUI convictions under 20 ILCS 2630/5.2.
The only exception is court supervision, which, if successfully completed, avoids a formal conviction and may be eligible for expungement after a waiting period. However, the arrest record and supervision record remain visible to law enforcement regardless.
Driving record vs. criminal record:
- Criminal record: DUI conviction is permanent
- Driving abstract: A DUI conviction remains on your Illinois driving record permanently and is always visible to the Secretary of State for purposes of counting prior offenses
This permanent record has real consequences for employment background checks, professional licensing, and future DUI charging decisions.
Illinois DUI With a Minor in the Car: Extra Penalties
Driving under the influence with a passenger under age 16 in the vehicle is a separate aggravated DUI offense under Illinois law. It applies regardless of whether it is a first or subsequent offense.
Penalties for DUI with a minor in the vehicle:
- Mandatory minimum 6 months in jail (cannot be suspended or reduced)
- Fine of up to $25,000
- The charge is a Class 4 felony if the driver’s BAC is 0.16% or higher or if the minor suffered bodily harm
- A separate charge of child endangerment may also be filed
This enhancement applies even to a first-time DUI offender with no prior record. The mandatory jail term is non-negotiable.
FAQ
What is the BAC limit for DUI in Illinois? The standard limit is 0.08% for drivers 21 and older. Commercial drivers face a 0.04% limit, and drivers under 21 face zero tolerance for any detectable alcohol.
Can a first DUI in Illinois be reduced to a lesser charge? Illinois does not have a lesser impaired driving charge like DWAI. However, a first-time offender may qualify for court supervision, which avoids a formal conviction if all conditions are met.
How long does a DUI stay on your driving record in Illinois? A DUI conviction stays on your Illinois driving record permanently. It never falls off and is always counted for purposes of determining whether a future offense is a second, third, or subsequent DUI.
Can you get a DUI expunged in Illinois? No. DUI convictions cannot be expunged or sealed in Illinois. Court supervision dispositions may be expungeable after completion, but a conviction is permanent.
What is the minimum jail time for a second DUI in Illinois? A second DUI conviction requires a mandatory minimum of five consecutive days in jail or 240 hours of community service. This minimum cannot be waived by a judge.
Does Illinois have a hardship license after a DUI? Illinois offers a Monitoring Device Driving Permit (MDDP) for first-time offenders during their statutory summary suspension, requiring a BAIID device. For revocations (second offense and beyond), a Restricted Driving Permit (RDP) may be available through a Secretary of State hearing.
What happens if you drive on a suspended license after a DUI in Illinois? Driving on a DUI-related suspended or revoked license is a separate criminal offense that can result in additional jail time, extended suspension, and felony charges for repeat violations.
Is a third DUI a felony in Illinois? Yes. A third DUI conviction is a Class 2 felony, carrying three to seven years in prison and a maximum fine of $25,000.
What is aggravated DUI in Illinois? Aggravated DUI applies when a DUI involves a minor passenger, causes bodily harm or death, occurs in a school zone, or involves a driver without a valid license. It is charged as a felony regardless of prior DUI history.
Can you go to trial for a DUI in Illinois? Yes. A defendant has the right to a bench trial or jury trial. An experienced DUI attorney can challenge the traffic stop, field sobriety tests, breathalyzer calibration, and other evidence.
Conclusion
The Illinois DUI penalty chart for 1st, 2nd, and 3rd offenses makes one thing clear: each conviction carries consequences that compound quickly. A first offense can still result in jail time, thousands of dollars in costs, and a permanent criminal record. A second offense adds mandatory incarceration and a five-year license revocation. A third offense becomes a felony with potential prison time measured in years, not days.
Actionable next steps if you or someone you know faces a DUI charge in Illinois:
- Contact a qualified DUI defense attorney immediately, before the 46-day window to challenge the statutory summary suspension closes.
- Do not assume a first offense is minor. Court supervision is a one-time option, and missing that opportunity has lasting consequences.
- Request a copy of the police report and any dashcam or bodycam footage as early as possible.
- Attend all required hearings. Missing a court date on a DUI charge can result in a warrant and additional charges.
- Explore all available driving permit options through the Illinois Secretary of State to maintain limited driving privileges during any suspension or revocation period.
For comprehensive guidance on how Illinois DUI cases unfold from arrest through sentencing, review Navigating the DUI Process in Illinois: A Complete Guide and Understanding the Consequences of DUI Arrest in Illinois. If you need legal representation, the Best DUI Lawyer in Chicago Illinois resource can help you find qualified counsel.
References
- Illinois Compiled Statutes, 625 ILCS 5/11-501 (Illinois Vehicle Code, DUI provisions), ilga.gov
- Illinois Secretary of State, Driver Services, DUI Information, 2024, ilsos.gov
- Illinois Compiled Statutes, 20 ILCS 2630/5.2 (Criminal Identification Act, expungement provisions), ilga.gov
- Illinois Compiled Statutes, 625 ILCS 5/11-501.1 (Implied Consent Law), ilga.gov
Related reading
- Aggravated (felony) DUI specifics
- Second-offense penalties in detail
- The statute these penalties come from
- Discuss your case with our attorneys
Facing a first DUI arrest specifically? See what happens on a first-time DUI in Chicago.
