Gordon Brown – $15 million
Gordon Brown might have only served as prime minister for four years, but he remains a prominent political figure to this day. Since leaving office in 2010, he has written and published several books, including a memoir called My Life, Our Times in 2017.
His written works and the pay he received as a member of parliament for over three decades earned him a fortune reportedly worth $15 million. He continues to comment on the British political scene to this day. In 2021, he wrote an opinion piece for The Guardian, criticizing the G7 Summit for its perceived failure in effectively addressing the current crisis the world is facing.