The first DUI conviction in Illinois is a Class A misdemeanor and, in addition to Statutory Summary Suspension, your driving privileges will be revoked for a minimum of 1 year. If you are under the age of 21 at the time of your first DUI conviction, your driving privileges will be revoked for a minimum of 2 years. Regardless of your age, first offenses result in suspension of your vehicle registration.
If your BAC is .16 or higher, you will also have a mandatory minimum fine of $500 and mandatory community service hours no less than 100 hours. If your first DUI occurred while transporting a child under the age of 16 then you will face additional punishment including up to 6 months jail time, a mandatory minimum fine of $1,000, and 25 days of community service. If a child under the age of 16 was injured in any crash you will be facing charges for aggravated DUI which is a Class 4 felony punishable by a term of imprisonment no less than one year and no more than three years, plus a mandatory minimum fine of $2,500 and 25 days community service.