Trump declined to testify at a civil trial brought by E Jean Carroll, who accused him of rape and defamation in the 1990s.
US District Judge Lewis Kaplan had given Trump until May 8 to request to testify, but he did not file any request.
Trump's attorney Joseph Tacopina told the judge on Thursday that Trump had waived his right to testify in the trial.
Carroll claimed that Trump raped her in a dressing room at the Bergdorf Goodman department store in Manhattan in 1995 or 1996.
She also claimed that Trump defamed her when he accused her of lying after she went public with the allegation in 2019.
In a video deposition played for the jury, Trump denied raping Carroll and maintained that she made up the allegation.
Trump has repeatedly claimed that he does not know who Carroll is and that she is not his type.
The case is one of several legal challenges facing Trump as he seeks a return to the White House in the 2024 US presidential election.
The closing arguments for the trial have been scheduled for Monday.
Carroll filed her lawsuit against Trump last year.