Ex-WPP CEO Martin Sorrell has been asked to repay around $312,000 (£170,000) in personal expenses back to WPP following his departure from the holding group last year.
The Wall Street Journal reported that the former top boss had charged items for his New York apartment, travel for his wife and child and ski trips to WPP during his tenure.
Sorrell has reportedly repaid $312,000, but WPP is seeking further reimbursement for additional expenses and is carrying out an investigation into other charges.
Sorrell earned a salary of $66.4 million from WPP in 2016 before accepting a dramatic pay cut to $19.2 million the following year.
His departure as chief executive of WPP in April last year came as a shock to the industry.
Since his abrupt exit, the advertising tycoon has been at war with the holding group, criticising its structure and changes made under new CEO Mark Read.
Most recently, he suggested that creatives are living in the glory days of the past and the definition of creativity is out of date, while talking on stage about his new business S4 Capital.
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