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When does speeding become a misdemeanor in Illinois?

On Behalf of | May 8, 2026 | Traffic Offenses And DUI

A speeding ticket may seem like something you can handle by paying a fine. However, Illinois treats some high-speed violations as criminal offenses. If police cite you for driving far above the posted limit, the charge may be more serious than a regular traffic ticket.

When does speeding become aggravated speeding?

Under state law, speeding becomes aggravated speeding when you drive 26 mph or more over the posted speed limit. The level of the charge depends on how far over the limit you were allegedly driving. You may face:

  • Class B misdemeanor: You are accused of driving 26 to 34 mph over the limit.
  • Class A misdemeanor: You are accused of driving 35 mph or more over the limit.

These charges require more than mailing in payment. Illinois Supreme Court rules require you to appear in court for major traffic offenses, including traffic charges that carry possible jail time.

What penalties could you face?

A misdemeanor speeding charge carries consequences beyond a fine. For a Class B misdemeanor, you may face up to six months in jail and a fine of up to $1,500. For a Class A misdemeanor, the possible penalties increase to up to 364 days in jail and a fine of up to $2,500.

A conviction creates a permanent criminal record that can appear in background checks for employment, housing or licensing. Depending on the facts of your case, the court may consider outcomes such as probation, conditional discharge or court supervision.

Supervision is often the preferred outcome because, upon successful completion, the court dismisses the charge without entering a formal conviction. However, even with supervision, you should not assume that you can expunge or seal the record. Under state law, most traffic-related misdemeanors are ineligible for removal from your record.

Why does the citation deserve careful attention?

An aggravated speeding ticket can affect your driving record, insurance costs and ability to keep a clean background. After receiving a citation, check the alleged speed, statute number, court date and appearance requirement.

Once your speed reaches 26 mph over the limit, the case may move into criminal court territory. If you are facing an aggravated speeding charge, speaking with a legal professional can help you understand your options before your court date.