Illinois DUI Penalties: What You Need to Know in 2026

Illinois DUI penalties escalate sharply with each offense, and they are set by Illinois statute — they differ substantially from other states.

How Illinois Classifies DUI

A first offense is generally charged as a misdemeanor, while repeat offenses and certain aggravating circumstances are charged as felony “aggravated DUI.” Aggravating factors can include driving on a suspended licence, transporting a child, or causing injury.

Consequences Beyond the Courtroom

A conviction typically carries a combination of fines, possible jail, mandatory evaluation and education, and a licence sanction handled by the Illinois Secretary of State. Many drivers are also required to use a Breath Alcohol Ignition Interlock Device to keep driving.

Why the Details Matter

Exact fine amounts, minimum sentences and suspension lengths depend on the offense number, BAC level, and aggravating factors, and they are periodically amended by the legislature. Confirm current figures with a licensed Illinois attorney or the Illinois Secretary of State before relying on them.

General information about Illinois law, not legal advice. No attorney-client relationship is created. Verify current penalties with a licensed Illinois attorney.

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