Hillary Clinton earned more than $5 million in book royalties and nearly $1.5 million for paid speeches last year, according to a financial disclosure form released by her campaign.
The release came hours after Donald Trump boasted of filing the same form with the Federal Election Commission — which was not immediately made public but which the Republican candidate said showed "tremendous cash flow."
Clinton's team took a swing at Trump in releasing her 11-page form, saying that despite the Republican's "boasting" the filing was "no breakthrough for transparency" but rather a "legal requirement" for presidential candidates.
"The true test for Donald Trump is whether he will adhere to the precedent followed by every presidential candidate in the modern era and make his tax returns available, as Hillary Clinton has done," the campaign said in a statement.
Trump has been under fire for declining to release his tax returns, which would offer more specific documentation of his income and tax payments than the form he boasted of filing Tuesday.
Nearly every major party nominee over the past four decades has released tax returns. Trump last week said there was "nothing to learn" from his taxes, telling the Associated Press he probably would not release them before the election.