Chesterfield Borough Council is warning residents about a call they may receive.
A spokesperson for the authority said: "We have received further reports of a council tax scam from our residents.
"People have reported receiving a call from someone claiming to be from the council and asking for bank details to give a refund on council tax.
"Please be aware, this is a scam.
"Please do not give bank information to cold callers.
"If you receive a call, you can report this to Action Fraud by calling 0300 123 2040."