Michael Corbat is going to have to pay up.

Citigroup, which shelled out $7 billion to settle mortgage-related claims this year, will take a $2.7 billion charge in the fourth quarter related to legal expenses tied to settling charges it rigged currency and interest rates.

The surprise charge — expected to wipe out most of Citi’s quarterly profit — was dropped on shareholders Tuesday by CEO Corbat.

Shares in the big bank fell as much as 3 percent on Tuesday before closing at $55.85, down 52 cents.

“Clearly we’ve been operating in a heightened legal and settlement environment,” Corbat said, “and if you look at our disclosure and the things that are out there, I think we’ve done a good job this year in terms of getting mortgage [issues] and … some other important things behind us.”

It’s been an expensive year for the third-largest US bank. In addition to the July mortgage settlement, it paid $600 million in third-quarter expenses related to foreign exchange manipulation.