The cash is for anyone supplying information leading to the arrest and conviction of those responsible for a spate of car fires in the Manton and town centre areas.
There have been 39 incidents since the beginning of the year and on most occasions the targeted cars have been parked on driveways.
Notts Police said they have implemented a raft of measures to combat these crimes, including arresting and bailing four people, and are now appealing to the community for information.
Det Chf Insp Melanie Bowden urged anyone with any information to contact the police as soon as possible.
“There are people out there who know who the culprits are and we are appealing to anyone with any information to contact us,” she said.
“While it may seem like a bit of fun to those responsible, the consequences of this behaviour can be very serious, both for the offenders and potential victims.”
She added: “A conviction for arson carries a maximum penalty of life imprisonment. At the very least a car fire can cause weeks of hardship for those left without their vehicles, but fire can also very easily spread to nearby buildings and property, causing further damage and also putting lives at risk.”
Anyone with any information should contact Worksop Police on 101 or call Crimestoppers anonymously on 0800 555 111.