He will serve as an adviser in the White House.
The appointment has sparked criticism, however. US laws forbid government officials from promoting or appointing their family within the government agencies they work for.
Mr Kushner is thought to be one of the closest of Mr Trump’s advisers and was instrumental in his election victory.
In a interview with German newspaper Bild, Mr Trump said: “You know what? Jared is such a good lad, he will secure an Israel deal which no one else has managed to get.
"You know, he’s a natural talent, he is the top, he is a natural talent. You know what I’m talking about – a natural talent. He has an innate ability to make deals, everyone likes him.”
He added Mr Kushner’s wife would not be involved in government as she currently “has the kids” and was busy buying a house in Washington.
In his interview with the Times, Mr Trump also called the nuclear deal with Iran "one of the dumbest deals I’ve ever seen,” and urged the UK to veto any new UN Security Council resolution critical of Israel.