Arson charges in Illinois fall into four felony tiers, with prison sentences that start at three years for basic arson and reach 60 years when a fire causes catastrophic injury. Which charge applies turns on what burned, whether anyone was inside, and whether anyone was hurt. Every conviction also carries mandatory restitution, reimbursement of emergency-response costs, and a decade in the state’s arsonist database.
What Counts as Arson
A person commits arson in Illinois by knowingly using fire or an explosive to damage property.1Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1 – Arson; Residential Arson; Place of Worship Arson The damage has to hit either real property or personal property worth at least $150. Two situations qualify: damaging someone else’s property without consent, or damaging any property, including your own, with the intent to defraud an insurer.
“Knowingly” is the key word. Accidents don’t qualify, no matter how much destruction they cause. Prosecutors have to prove the defendant deliberately set the fire or triggered the explosion.
The Four Felony Classes and Their Sentences
Arson — Class 2 Felony
Basic arson is a Class 2 felony punishable by three to seven years in prison, with an extended term of seven to 14 years available when aggravating factors are present at sentencing.2Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-35 – Class 2 Felonies; Sentence Fines can run up to $25,000.3Justia Law. Illinois Code 730 ILCS 5/ Unified Code of Corrections – Article 4.5 This is the charge for burning a car, a storage unit, a vacant lot, or similar property when no one is inside a building. Insurance-fraud fires also fall here, regardless of what was burned.
Residential Arson and Place of Worship Arson — Class 1 Felony
When the target is a home or a house of worship, the charge steps up to a Class 1 felony. Residential arson applies when the defendant knowingly damages a building used as another person’s dwelling; place of worship arson covers churches, mosques, synagogues, temples, and similar buildings.1Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1 – Arson; Residential Arson; Place of Worship Arson
Both carry four to 15 years in prison, or 15 to 30 years under an extended term, plus fines up to $25,000.4FindLaw. Illinois Statutes 730 ILCS 5/5-4.5-30 – Class 1 Felonies; Sentence3Justia Law. Illinois Code 730 ILCS 5/ Unified Code of Corrections – Article 4.5 The reasoning behind the elevated tier is that dwellings and houses of worship are likely to be occupied, even if no one is inside when the fire starts.
Aggravated Arson — Class X Felony
Aggravated arson is the most serious fire offense on the books in Illinois. The charge applies when someone commits arson by damaging a building or structure and any one of the following is also true:5Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1.1 – Aggravated Arson
- The defendant knew or reasonably should have known that one or more people were inside.
- Someone suffered great bodily harm, permanent disability, or disfigurement.
- A firefighter, police officer, or correctional officer at the scene in the line of duty was injured.
The statutory definition of “building or structure” reaches beyond conventional buildings to include schools, house trailers, watercraft, motor vehicles, and railroad cars.
As a Class X felony, aggravated arson carries six to 30 years in prison with no probation available.6Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-25 – Class X Felonies; Sentence If the fire caused great bodily harm, permanent disability, or disfigurement, the extended-term range runs from 30 to 60 years. Three years of mandatory supervised release follow the prison term, and fines can reach $25,000.3Justia Law. Illinois Code 730 ILCS 5/ Unified Code of Corrections – Article 4.5 The no-probation rule is what sets Class X apart from every lower class. A judge has no discretion to keep the defendant out of prison.
Restitution, Fines, and Response Costs
The prison sentence is only one layer of the penalty. Illinois requires courts to order restitution in every conviction that caused injury or property damage, covering out-of-pocket expenses and property losses directly caused by the fire.7Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-5-6 – Restitution Restitution goes to every victim of the criminal conduct, not just the person named in the charging document. Pain and suffering are not included.
On top of that, arson convictions trigger reimbursement to the local departments that responded to the scene. Each responding department can recover its actual personnel and equipment costs, with a floor of $1,000 and a ceiling of $10,000 per department.8Justia Law. Illinois Code 730 ILCS 185 – Emergency Services Response Reimbursement for Criminal Convictions Act When multiple departments show up, the fees stack.
Victims can also sue in civil court for losses restitution doesn’t reach, such as emotional distress and loss of use of the damaged property. A criminal conviction is powerful evidence in that civil case.
Ten Years in the Statewide Arsonist Database
Anyone convicted of an arson offense in Illinois is entered into the Statewide Arsonist Database maintained by the Illinois State Police and remains there for 10 years after the conviction date.9Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 148/10 – Statewide Arsonist Database The record includes the offender’s name, date of birth, the specific arson offense, conviction date, county, and potentially a photograph.
There is no early-exit mechanism. If a conviction is reversed or the records are sealed or expunged, the Illinois State Police removes the entry once it receives a certified copy of the court order. Otherwise the 10-year clock runs from conviction, not from release.
How Juvenile Cases Are Handled
Minors accused of arson usually go through juvenile court, which leans on counseling, community service, and educational programming rather than long incarceration. Juvenile courts can order restitution too.
In serious cases the State’s Attorney can move to transfer the case to adult court. Discretionary transfer is available for any minor 13 or older when a judge finds probable cause and decides that keeping the case in juvenile court would not serve the public interest.10Illinois General Assembly. Illinois Compiled Statutes 705 ILCS 405/5-805 – Transfer of Jurisdiction For minors 15 or older with a prior forcible-felony adjudication, transfer is presumed, and the minor has to persuade the court to keep the case in juvenile court.
Once transferred, a juvenile faces the same sentencing ranges as an adult. With aggravated arson carrying a six-year minimum and no probation option, a transfer decision can reshape a young defendant’s entire future.