The returns show the couple made $14,959,450 in charitable contributions, or roughly 11 percent for the past two years.
The tax documents were made public Friday afternoon, shortly after the latest State Department release of thousands of additional emails from the period when Clinton served as secretary of state.
Within minutes of that release, the Clinton campaign released a letter from her personal physician characterizing the Democratic front-runner as in "excellent physical condition" and fit to serve as president.
On Friday evening, the campaign posted Clinton's tax returns and an accompanying inventory of paid speeches she delivered in 2013. The disclosure included a list of speeches given by her husband that year as well.
Clinton had previously disclosed that she and her husband had earned more than $25 million for speeches in 2014 and 2015. In the latest release, she disclosed information about speeches she delivered in 2013, after stepping down as secretary of state on February 1 of that year. She reported that she delivered 41 paid speeches for $9.7 million in that year, including three separate addresses to the powerful Goldman Sachs Group. The list showed she generally charged $225,000 per speech, though at times her fee was higher, including once when she collected $400,000 for a speech to the Jewish United Fund/Jewish Federation of Metropolitan Chicago.
In a statement released ahead of the returns, Clinton paired the latest details on the couple's substantial income with a call for tax reform and simplification, emphasizing the need for "those at the top to pay their fair share." She reiterated a call for raising short-term capital gains tax rates for those in the top bracket, then moving to a six year sliding scale to encourage longer term investments.
All of this she contrasted with the policies supported by GOP candidates. "They want to give me another tax cut I don't need instead of putting middle class families first," she said. She criticized Jeb Bush and Marco Rubio for their tax proposals as providing a "giveaway to the super wealthy."
Clinton's Friday release also included a chart showing the tax rate she and her husband have paid since 2001, when they paid an effective federal tax rate of 37.7 percent. Their lowest rate came in 2007 when they paid an effective rate of 25 percent. In 2014, they paid a 35.7 percent federal tax rate.
Rosalind S. Helderman contributed to this article