Obama and his wife, Michelle, in April reported income of $503,183 last year. As president, Obama is entitled to a $400,000 salary.
In financial disclosure forms released on Thursday, the president reported outside income of between about $180,000 and $482,000 from book royalties and investments.
The president reported a 30-year mortgage of between $500,000 and $1 million on his Chicago residence at a 5.625 percent interest rate. He has retirement plans from the Illinois General Assembly and the University of Chicago.
Vice President Joe Biden reported assets of between about $230,000 and $850,000. He is entitled to a $230,700 salary.
Biden listed outside income of between about $30,000 and $105,000, principally from rental property and book royalties.
Biden's liabilities include a mortgage of between $500,000 and $1 million at a 3.375 percent interest rate and a home equity line of credit of between $250,000 and $500,000.
Biden split a $50,000 award from the Pennsylvania Society in equal parts, with contributions to the Pennsylvania Coalition Against Domestic Violence and Women Against Abuse in Philadelphia.