Phony officials have been scamming people by threatening them with council tax fines or offering refunds.
People have been warned to be on their guard after several incidents were reported across the district recently.
The fraudsters, who have been known to get aggressive, operate by ringing, texting or visiting residents claiming to be from the council, valuation office or another company which deals with changes to council tax banding.
They say you are either due a refund or owe more tax and must pay it to avoid a fine. They then ask for information and bank details to process the refund or payment or may ask for a fee to secure a refund or band reduction.
The council does not contact people in this way to demand bank details.
Steve Bishop, shared strategic director for finance at South Oxfordshire and Vale of White Horse District Councils, said: “If someone contacts you directly about council tax or benefits and asks directly for your bank details please do not pass on any information.
“Instead either get in touch with us immediately to check whether it is a legitimate request, or call Trading Standards to report the incident as a suspected scam.”
Call Trading Standards on 0845 0510845.