A 'big conversation' will be held with Barnsley residents so the council can decide what should be prioritised as millions are cut form the budget.
About £30m has been saved over the last two financial years but town hall finance chiefs need to slash another £37m over the next four years.
The council has warned it will no longer be able to offer all the services people have received and got used to. But it is holding the 'Barnsley Big Conversation' to try to find out what residents value most.
It will start on Saturday, September 8 and run until September 15.
Council leader Steve Houghton said: "We need a big conversation because we’re dealing with a big challenge and we hope this week will give us an insight into how we can make this happen."
A council spokesman said there was 'a lot to talk about'. "There is a need to look at how the council and other agencies can minimise the impact of these changes to services on communities and how communities can help themselves as well as building the Barnsley of the future, along with the role of the council."