"Not renewing subscriptions across all federal agencies will be a significant cost saving for taxpayers - hundreds of thousands of dollars," White House Press Secretary Stephanie Grisham said in a statement on Thursday.
Government officials also said that these two newspapers will stop being delivered to the White House, which also subscribes to The Wall Street Journal, USA Today, The Financial Times and The New York Post, reports Efe news.
Trump had hinted of the move in an interview with Fox News earlier this week.
"The New York Times, which is a fake newspaper - we don't even want it in the White House anymore. We're going to probably terminate that and The Washington Post. They're fake," he told Fox News' Sean Hannity in an exclusive interview on Monday.
Trump came to power with a confrontational stance against US media, especially broadcaster CNN, The New York Times and The Washington Post, for their reports on alleged interference by the Kremlin in the 2016 US presidential elections.
Since taking office, he has been increasingly critical and his attacks on the media have become a regular feature of US politics.
The leader accuses the media in his tweets and rallies of reporting "fake news" and being "dishonest."
He has even dubbed the Times "the failing New York Times" and the Post "the Amazon Washington Post" in reference to the newspaper's owner, Jeff Bezos, who is also the founder of e-commerce giant Amazon.
( With inputs from IANS )