Elon Musk has hit out at President Donald Trump's signature tax and spending bill, describing it as a "disgusting abomination", in a widening rift between the two allies.

Axar.az, citing BBC, reports that the budget, which includes multi-trillion-dollar tax breaks and more defense spending while also allowing the US government to borrow more money, was passed by the House of Representatives last month.

"Shame on those who voted for it," Musk said in a post on X about the legislative linchpin of Trump's second-term agenda.

The tech billionaire left the administration abruptly last week after 129 days working to cut costs with his team, known as Doge.

I’m sorry, but I just can’t stand it anymore.

This massive, outrageous, pork-filled Congressional spending bill is a disgusting abomination.

Shame on those who voted for it: you know you did wrong. You know it.

— Elon Musk (@elonmusk) June 3, 2025