"WHAT THE F---! (VOTE ForTRUMP) IM OUT," he wrote in the caption. "F--- NEW YORK The KNICKS never win anyway. I don’t care Trump doesn’t like black people 62% are you out of ya f---ing mind."
On Tuesday, 50 Cent -- born Curtis James Jackson III -- further detailed his opposition to the policy, sharing a recording of a Fox News broadcast story about his reaction to the numbers.
Highlighted in the clip was a tweet from Trump adviser Katrina Pierson, who wrote, "I guess 50 cent don’t want to end up 20 cent."
The rapper agreed in his own tweet on Tuesday.
After voicing his surprise at the tax rates, a handful of fans commented on his post, attempting to explain that the high figures would apply only to "rich people."
Not long after, Jackson -- also known as "Fiddy" -- shared another image online of himself smiling, seemingly to boast about his wealth.
"I just remembered i’m bankrupt, so i’m looking for a gracious loan can anyone help a brother out. LOL," he wrote.
The mogul added hashtags referencing two brands of liquor that he owns in addition to being a musician, businessman, actor and producer.