At the moment, the number of signatures stands at 627,883.
A response from the White House is expected after February 19.
The petition demands that Trump’s full returns are released immediately and underlines that the records can "reveal the foreign influences and financial interests which may put Donald Trump in conflict with the emoluments clause of the Constitution."
During his presidential campaign, Trump repeatedly refused to reveal information on his tax returns, which triggered speculation on numerous tax breaks and loopholes for rich individuals and big businesses that could have allowed him to almost avoid paying federal taxes. Trump explained that his tax revenues were being checked by the US Internal Revenue Service, and therefore it was too early to reveal the data.