"Mr. Kushner uses his White House email address to conduct White House business. Fewer than a hundred emails from January through August were either sent to or returned by Mr. Kushner to colleagues in the White House from his personal email account," Kushner attorney Abbe Lowell said in a statement.
Lowell said the emails were "usually forwarded news articles or political commentary" and "most often occurred" when someone "initiated the exchange by sending an email to his personal" account.
The news of Kushner's personal email use was first reported by Politico.
The statement makes no mention of classified information but says that copies of the emails were sent to his official account for recording.
"All nonpersonal emails were forwarded to his official address, and all have been preserved in any event," Lowell said.
A White House official conducting business on a personal email account is not unprecedented.