Illinois arson penalties range from three years in prison for the basic offense up to 60 years when a fire causes catastrophic injury, and every conviction carries mandatory restitution, emergency-response reimbursement, and ten years in the state arsonist database. The exact sentence depends on which of the four arson offenses applies: basic arson, residential arson, place of worship arson, or aggravated arson.
What the State Has to Prove
A person commits arson in Illinois by knowingly using fire or an explosive to damage real property or personal property worth at least $150. The damage must be either to someone else’s property without consent, or to any property (including your own) with intent to defraud an insurer.1Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1 – Arson; Residential Arson; Place of Worship Arson
“Knowingly” matters. Accidental fires, even catastrophic ones, do not meet the standard. Prosecutors have to prove the defendant deliberately lit the fire or set off the explosion. That same word is why burning your own property can still be arson: if the goal was an insurance payout, the deliberate act is enough.
Basic Arson: Class 2 Felony
The least severe arson offense is a Class 2 felony. The standard prison term is three to seven years, and an extended term with aggravating factors runs seven to 14 years.2Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-35 – Class 2 Felonies; Sentence A fine of up to $25,000 can be added.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 worth at least $150 when no one is inside a building. It also covers insurance-fraud fires regardless of what burned. Once a dwelling, an occupied structure, or an injury is involved, the charge climbs.
Residential Arson and Place of Worship Arson: Class 1 Felony
Setting fire to someone’s home or to a church, mosque, synagogue, temple, or similar building bumps the offense to a Class 1 felony.1Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1 – Arson; Residential Arson; Place of Worship Arson The standard prison range is four to 15 years, and the extended-term range is 15 to 30 years.4FindLaw. Illinois Statutes 730 ILCS 5/5-4.5-30 – Class 1 Felonies; Sentence Fines can reach $25,000.3Justia Law. Illinois Code 730 ILCS 5/ Unified Code of Corrections – Article 4.5
The legislature pulled these categories out of basic arson because homes and houses of worship are likely to be occupied, even when no one happens to be there at the moment of the fire.
Aggravated Arson: Class X Felony
Aggravated arson is the most serious fire offense in Illinois. A person commits it by knowingly damaging a building or structure in the course of arson when any one of these is true:5Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/20-1.1 – Aggravated Arson
- The defendant knew or should have known a person was 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.
Aggravated arson is a Class X felony. The prison sentence is six to 30 years, and probation is not available.6Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-25 – Class X Felonies; Sentence When the fire causes great bodily harm, permanent disability, or disfigurement, the extended-term range is 30 to 60 years. Three years of mandatory supervised release follow prison, 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. A judge has no discretion to impose a lighter alternative. A conviction means prison.
Restitution and Emergency-Response Fees
Illinois courts must order restitution in every conviction involving injury or property damage.7Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-5-6 – Restitution Restitution covers out-of-pocket losses, property damage, and other direct costs to every victim of the conduct, not only the person named in the charges. It does not cover pain and suffering.
A separate obligation reimburses local emergency response departments for the actual cost of personnel and equipment used to respond. Each responding department can seek between $1,000 and $10,000, and when multiple departments respond, those fees stack.8Justia Law. Illinois Code 730 ILCS 185 – Emergency Services Response Reimbursement for Criminal Convictions Act
Ten Years in the Arsonist Database
Anyone convicted of an arson offense is entered into the Statewide Arsonist Database maintained by the Illinois State Police, where the record stays for ten years after conviction.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 offense, conviction date, county of conviction, and potentially a photograph. The database was required to be operational by July 1, 2025. The ten-year clock runs from the conviction date, not from release.
How Juvenile Cases Are Treated
Minors charged with arson are usually handled in juvenile court, which focuses on counseling, community service, and educational programming, and can also order restitution. But the State’s Attorney can petition to move a case to adult court. Discretionary transfer is available for any minor age 13 or older when a judge finds probable cause and decides 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, there is a presumption in favor of transfer, and the minor has to persuade the court to keep the case in juvenile court.
A juvenile tried as an adult faces the full adult sentencing ranges, including the six-year Class X minimum with no probation for aggravated arson.