In 2017, Sanders and his wife reported an adjusted gross income of a little more than $1.1 million from book sales. The release also confirms that Sanders' income crossed the $1 million threshold in 2016 and 2017, though he reported less earnings in his most recent return.
In a tweet on Sunday, ThinkProgress editor-in-chief Jodi Enda defended the site as "editorially independent journalistic entity" and said "neither CAP or CAP Action had anything to do with the article or video related to Senator Sanders or articles related to any other political leader".
It's tradition for presidential candidates, and most candidates for federal office, to release their tax returns. Sanders has published three books since the start of his first White House run, including bestsellers "Our Revolution" and "Where We Go From Here".
Sanders said that: "These tax returns show that our family has been fortunate".
"Bernie Sanders has been filing detailed financial disclosures for nearly 30 years, and he is proud to voluntarily make these tax returns available many months before the election", said Sanders campaign manager Faiz Shakir. "Let the American people know", he continued, as the audience applauded.
The effective rates and income both represent substantial increases from 2014, which was the a year ago of tax returns publicly released by the candidate, when he earned $205,617 and paid a 13.4% effective rate.
Governor Jay Inslee of Washington released 12 years of tax returns, showing that he and his wife earned US$202,912 last year.
In 2016, during his first presidential campaign, Sanders released only one year of records - from 2014. He joked his supporters might be thrown off by "my trillions of dollars of investment in Saudi Arabia or Russian Federation".
Alexandria Ocasio-Cortez shares her ideal 'Game of Thrones' outcome
If Ocasio-Cortez wants any advice on wooing the Glastonbury crowd, she can call on the leader of the opposition, who has said how much he admires her.
"Meanwhile, the Center for American Progress is using its resources to smear Senator Booker, Senator Warren, and myself, among others".
So far, those have shown that Harris and her husband made the most money, paid the most in taxes and were taxed at the highest rate. "I worry that the corporate money CAP is receiving is inordinately and inappropriately influencing the role it is playing in the progressive movement".
Democrats in the House renewed efforts again in early April to force the president's hand in delivering at least six years of personal and business returns.
He promised "no great revelations".
Sanders had come under increasing pressure to make the tax disclosures as his primary rivals rolled out their own returns and critics - along with some allies - began to agitate for a more complete, public look inside the candidate's pocketbook. They paid just under $700,000 in federal taxes, a tax rate of almost 37 percent. The two paid $145,840 in taxes, or a 26 percent tax rate, and also gave 3.4 percent of their income to charity, donating $18,950.
Former New Hampshire Democratic Party chair Kathy Sullivan said that while she does not see a problem with Sanders' financial status squaring with his commitment to curbing income inequality, she was struck by the way he handled questions about his wealth.
Sanders' decision to run for president in 2015 ultimately led to an increase in their bottom line - which jumped from $240,622 in 2015 to $1,073,333 a year later.
Sander then demanded that the correspondents call on Trump to release his tax returns.