The Lambton Kent District School Board's occasional and supply teacher costs are over budget.
Superintendent of Business Brian McKay presented the finding in his financial report for 2015-16 school year.
McKay says the expenditures are currently 8.2% over budget to the end of May, with one month of expenditures remaining.
He says a year end budget variance of about $1-million is expected.
Human Resources Superintendent Phil Warner says the majority of employees do attend regularly.
Board Vice-Chair Scott McKinlay asked that a report on employee absenteeism be presented at the board's next meeting September 13.