Updated August 2025

In Illinois, a first DUI (driving under the influence) offense is usually a Class A misdemeanor. While unlikely, a conviction carries a maximum penalty of jail time and a hefty fine. 

But there’s a more serious type of DUI charge that carries far more severe consequences: a felony DUI.

A felony DUI is often reserved for repeat offenders, but a first-time DUI can be a felony charge in certain circumstances.

Our Chicagoland DUI attorneys explain when a DUI is considered a felony in Illinois and your options when you’ve been charged with this offense.

What Is a Felony DUI in Illinois, and How Is It Different from a Misdemeanor?

In Illinois, a first-time DUI offense is typically classified as a Class A misdemeanor. This carries a maximum penalty of up to one year in county jail and fines up to $2,500, plus court costs..

When a DUI is elevated to a felony charge, it becomes an “aggravated DUI.” These charges range in severity, with a Class 4 felony being the lowest, up to a Class X felony, which carries a possible sentence of 6-30 years in jail. All felony DUIs carry a fine of up to $25,000, although more severe charges carry a longer potential prison sentence. 

Class 4 felony: Punishable by one to three years in jail. However, probation is available for a Class 4 felony DUI.

Class 3 felony: A Class 3 felony carries up to five years in state prison. Unlike a Class 4 felony, this offense is not eligible for probation.

Class 2 felony: This offense is punishable by three to seven years in prison. You may get probation, depending on your driving history and past record of DUIs.

Class 1 felony: Drivers convicted of a Class 1 felony DUI face between 4 and 15 years in prison.

Class X felony: The most serious type of felony charge, a Class X felony carries between 6 and 30 years in prison.

Illinois law imposes mandatory minimum sentences for all felony DUI convictions, which means they cannot be suspended or reduced. Even defendants sentenced to conditional discharge or probation must serve at least ten days in jail or complete 480 hours of community service.

Additional penalties, aside from fines and court costs, can include court-ordered alcohol classes, treatment, testing, and counseling, as well as court-ordered participation at an Illinois Victim Impact Panel.

When Does a DUI Become a Felony in Illinois?

A third or subsequent driving under the influence offense is always charged as a Class 2 felony in Illinois. However, many other scenarios can lead to an aggravated DUI charge, even if it’s your first or second offense. The class of felony you will be charged with depends on your driving history and the circumstances of your crash. 

For example, an aggravated or felony DUI will be charged if you were driving under the influence and:

  1. You have a reckless homicide DUI conviction or an aggravated DUI conviction involving death (Class 3 felony DUI).
  2. You were transporting a minor who suffered bodily harm, and you have a prior DUI conviction (Class 2 felony DUI).
  3. You were charged with a DUI during a motor vehicle accident that resulted in death (this carries a more severe potential penalty of 3-14 years in prison for the death of one person. If more than one person died, the potential sentence increases to 28 years, with a six-year mandatory minimum.)
  4. This is your fifth DUI arrest (Class 1 felony DUI).
  5. You have five or more prior DUI convictions (Class X felony DUI).
  6. You are at fault for a crash that caused great bodily harm, permanent disability, or disfigurement (Class 4 felony DUI).
  7. You were driving a school bus and carrying one or more passengers 18 years old or younger (Class 4 felony DUI).
  8. You were driving a vehicle for-hire and carrying one or more passengers (Class 4 felony DUI).
  9. You were driving without a valid driver’s permit or driver’s license (Class 4 felony DUI).
  10. You were driving without automobile liability insurance (Class 4 felony DUI).
  11. Your license was revoked or suspended for DUI, reckless homicide, or leaving the scene (Class 4 felony DUI).

What Can Happen After a Felony DUI Conviction?

After any DUI conviction, along with the criminal penalties, your auto insurance rates will rise dramatically. If you drive for a living or if your job involves driving, you could be forced to find other work. A DUI conviction creates a criminal record that may be seen by neighbors, landlords, and prospective employers.

You can also expect disciplinary action by your state licensing board if you carry a professional license in Illinois, and if you are not a citizen of the United States, a driving under the influence conviction, especially a felony conviction, may prompt a deportation proceeding.

Then there is the impact of a felony DUI on your driving privileges. 

A third DUI conviction results in license revocation for a minimum of ten years. During this time, you must use a Restricted Driving Permit (RDP) and install a Breath Alcohol Ignition Interlock Device (BAIID) for five years or until the ten-year period passes (whichever is longer) before becoming eligible for reinstatement consideration.

Fourth or subsequent DUI convictions result in lifetime license revocation. In limited circumstances, you may be able to apply for an RDP after five years, but getting your license fully reinstated becomes extremely difficult.

As you probably already know, unless you plead guilty or no contest, you cannot be convicted of felony DUI (or any other crime) in Illinois unless and until a prosecutor can prove to a jury that you are guilty beyond a reasonable doubt. This makes it crucial to hire a DUI defense lawyer who can cast doubt on the state’s case against you.

When Should You Contact a DUI Attorney?

Every DUI case in Illinois is unique. The precise charge that a defendant will face and the specific penalties for a felony DUI conviction will depend on the details of the driving under the influence incident and any previous criminal convictions.

If you’re facing a prosecution for driving under the influence in the Chicago area, you will need aggressive defense representation and personalized legal advice.

How Will Your Attorney Help You?

Your defense lawyer will investigate the circumstances of your DUI arrest, evaluate the state’s evidence against you, speak with any witnesses, and protect your legal rights while developing an appropriate strategy for your defense. Your defense lawyer may challenge:

  1. Whether the police had reasonable suspicion to stop you or probable cause to arrest you
  2.  The validity of your breathalyzer test results
  3.  The credentials of the police officer who tested you
  4.  The arresting police officer’s testimony.

Read more: 54 Ways We’ve Beaten DUIs in Illinois

An arrest for driving under the influence in Illinois, even for felony DUI, does not necessarily mean that you will be convicted. But, if you are, the penalties are harsh.

Why Should You Choose Driver Defense Team?

When you hire Driver Defense Team, we’ll develop a strong defense strategy and bring your felony DUI case to its best possible conclusion. We understand how losing your privilege to drive may negatively affect your job, your future, and your family.

If you’re charged with felony DUI, misdemeanor DUI, or any other traffic-related criminal charge or moving violation in or near the Chicago area, contact Driver Defense Team by calling or texting 312-940-8330. One of our attorneys will evaluate your case without cost or obligation.

Driver Defense Team has offices in Chicago, Villa Park, and Stone Park, and our DUI attorneys represent clients in DuPage County, Cook County, Kane County, and Lake County. If you face a DUI charge now or in the future, bring your case to Driver Defense Team, and let us fight on your behalf. We’re the best at what we do, and we’ll use every legal tactic in our PlayBook to get you the best possible outcome.

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