Lottery rules allow winners to claim their prize up to a year after a drawing.
"We are thrilled that this lucky winner was able to locate this life-changing ticket," said Gweneth Dean, director of the Commission's Division of the Lottery. "We look forward to introducing this multimillionaire who came forward in the nick of time."
The New York Lottery said they will reveal the identity of the winner after a security background check review.
The winning numbers were 05-12-13-22-25-35 and the bonus number was 51.