Financially, Joe Biden has earned his wealth through a combination of public service salaries, book deals, speaking engagements, and other business ventures. During his time as Vice President, his salary was $230,700 per year. After leaving the vice presidency, Biden and his wife, Jill Biden, earned significant income from book deals and speaking fees. Their book deals included Biden’s memoir “Promise Me, Dad” and Jill Biden’s book “Where the Light Enters,” both of which were commercially successful.