“I think we are going to have to get to comprehensive tax reform, individual and corporate,” Geithner said during a hearing on Capitol Hill. “I don’t really see a way to meet the nation’s challenges effectively without doing that.”

“So it’s coming, it’s inevitable, it’s necessary and we can’t keep putting it off,” he said.

Still there is room to do incremental reform on the business side but it must be “very creative” and it will take a “sales job” to move it, he said.