Wall Street bonuses are expected to be up 15% from a year earlier, boosted by compensation deferred from previous years, according to an estimate released by New York State Comptroller Thomas DiNapoli.

New York securities firms will pay out $26.7 billion in cash bonuses and deferred compensation from previous years for performance in 2013, the report estimates. Over the past two years, the bonus pool ballooned 44% due in large part to deferred compensation.