State overtime costs are on the rise.

That's according to a report from Comptroller Thomas DiNapoli.

DiNapoli says overtime earnings at state agencies rose nearly 11% last year to $529 million, representing nearly 4% percent of the state payroll in 2012.

His report found the Office for People with Developmental Disabilities, the Office of Mental Health, and the Department of Corrections and Community Supervision  saw the steepest increases.

DiNapoli says state policy requires limiting overtime to a minimum and he's urging all agencies to ensure that expense is reduced whenever possible.

To read the full report, click here.