The businessman and tech giant bought the social media app formerly known as Twitter in 2022, and reports claim he has delivered a stark messages to employees.
According to The Verse and the Wall Street Journal, Musk said in an email to staff this month: "Our user growth is stagnant, revenue is unimpressive, and we’re barely breaking even.”
He also wrote: "We’ve witnessed the power of X in shaping national conversations and outcomes."
The message comes as the WSJ reports banks are looking to coordinate to sell off some of the $13 billion debt they loaned to help Musk finance his Twitter acquisition.
They have been trying to avoid selling at a loss, while Musk attempted to get out of the deal in court.
Meanwhile, US President Donald Trump has said he's open to Musk - who is spearheading Trump’s Department of Government Efficiency (DOGE) - buying TikTok if ByteDance agrees to sell.
Speaking after announcing a $500 billion investment in AI infrastructure project Stargate, Trump said when asked if he would be open to the billionaire businessman buying TikTok: "I would be, yeah.
"I met with owners of TikTok, the big owners, it's worthless if it doesn't get a permit.
"It's not like you can take the US. The whole thing is worthless. With a permit it's worth like a trillion dollars.
"So, what I'm thinking saying to somebody is buy it and give half to the United States of America and we'll give you a permit and they'll have a great partner, the United States."