Former Leicestershire County Council leader David Parsons could face legal action over an unpaid debt of nearly £4,000 relating to his misuse of a tax-payer-funded chauffeured limousine.
Mr Parsons was invoiced for £3,670.66 in June but according to a new report, to be considered by the council's corporate governance committee on Monday, he has yet to pay up.
He has been sent several reminders, including a final demand last week.
The sum has been calculated by County Hall investigators looking into journeys made by Mr Parsons using the council's car during his nine years in charge of the Tory-run authority. They concluded he made 26 journeys which "were not sufficiently connected" with his role as a county councillor or as leader of the council.
They found in two other cases that the reason for the journey was appropriate, but given the short distance involved, use of the car was not appropriate.
The invoice sum includes mileage costs and chauffeur wages, as well as an overnight hotel.
They launched their investigation after a complaint by Liberal Democrat councillor Bill Boulter.
A County Hall spokesman said: "In accordance with the council's normal debt recovery policy, first and second reminder letters were sent on July 22 and August 2 respectively.
"A third and final reminder was sent on September 10 stating the county council would look to commence legal proceedings if payment was not forthcoming within 14 days."
Mr Parsons, no longer a county councillor, was unavailable for comment yesterday.
He did not seek re-election in May having quit as leader in July last year after he was censured by the council's standards committee over travel expenses he claimed, but then failed to promptly reimburse to the authority.
Mr Parsons, who remains an independent member of Blaby District Council, has already paid back £3,100 – the cost of chauffeuring him to and from airports for European trips he made as council leader.
However, he also owes the council £250 which is the final instalment due from £752 he was charged for the early termination of the lease for his council car.