"I feel that this matter may well be a distraction from the Corporation's good work were I to remain in post until the end of my term," said Sharp, according to the news agency.
Sharp was earlier a boss of UK PM Rishi Sunak at Goldman Sachs.
Earlier this year, Richard Sharp was entangled in a controversy related to cronyism, in which he was accused of assisting Boris Johnson in securing a loan facility worth £800,000.
Sam Blyth, a Canadian businessman and a friend of Richard Sharp, approached him with an offer to assist Boris Johnson, who was facing financial difficulties as the Prime Minister in 2020.