Musk, the world’s wealthiest person with a net worth of $243 billion as of Sunday, faces a tax bill of nearly $11 billion, according to The Wall Street Journal. Earlier this month, he was named Time magazine’s person of the year.
Musk, who wrapped up a busy year of trading his Tesla shares Tuesday to meet his tax bill, tweeted as much on Dec. 19.
“For those wondering, I will pay over $11 billion in taxes,” the Tesla CEO tweeted.
For those wondering, I will pay over $11 billion in taxes this year
The majority of Musk’s wealth is tied up in Tesla and his rocket company, Space Exploration Technologies Corp., according to The Wall Street Journal.
Musk exercised options on Tuesday to buy another 1.6 million shares of Tesla and then sold 934,090 of the shares to cover the tax on that purchase, CNN reported.
That completed the exercise of 22.9 million options he held since 2012 that were due to expire in August, CNBC reported. Musk sold off 10.3 million of those shared to cover his tax withholding requirements, according to CNN.
Musk is compensated in stock awards and does not accept a cash salary from Tesla, according to The Wall Street Journal. When he wants cash, he can borrow money using his Tesla stock as collateral, CNBC reported.
Earlier this year, ProPublica published an investigation that revealed Musk and several other billionaires paid no federal income taxes in 2018.
Between 2014 and 2018, Musk paid $455 million in taxes on $1.52 billion of income, according to ProPublica. His wealth grew by $13.9 billion over that period, according to CNBC.
Musk could have waited until 2022 to exercise the stock options, but he faced the risk of a higher tax bill -- 8 percentage points higher than 2021 -- if Congress passed President Joe Biden’s Build Back Better legislation, CNN reported.
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Photos: Elon Musk through the years Here are some memorable photos of SpaceX founder and CEO Elon Musk through the years. (Pascal Le Segretain/Getty Images)
Photos: Elon Musk through the years 2008: Tesla founder Elon Musk attends the launch party for the Tesla Roadster, the world's first highway-capable all electric car available in the United States, at the Tesla Flagship Store on May 1, 2008, in Los Angeles. (Vince Bucci/Getty Images)
Photos: Elon Musk through the years 2009: CEO Elon Musk (left) arrives at the Tesla UK launch on June 25, 2009, in London. (Gareth Cattermole/Getty Images for Tesla)
Photos: Elon Musk through the years 2010: Toyota CEO Akio Toyoda, Tesla Motors CEO Elon Musk and California Gov. Arnold Schwarzenegger laugh during a news conference at Tesla Motors headquarters May 20, 2010, in Palo Alto, California. (Justin Sullivan/Getty Images)
Photos: Elon Musk through the years 2011: Talulah Riley and Elon Musk attend the 2011 Orange British Academy Film Awards at the Royal Opera House on February 13, 2011, in London. (Ian Gavan/Getty Images)
Photos: Elon Musk through the years 2012: Director Bryn Mooser, executive producer Elon Musk, executive producer Olivia Wilde and director David Darg of the film "Baseball in the Time of Cholera" attend the "Help Wanted" Shorts Program during the 2012 Tribeca Film Festival at the AMC Lowes Village on April 21, 2012, in New York City. (Cindy Ord/Getty Images)
Photos: Elon Musk through the years 2013: CEO and CTO of SpaceX and CEO and Chief Product Architect of Tesla Motors Elon Musk participates in a discussion at the New York Times 2013 DealBook Conference in New York at the New York Times Building on November 12, 2013, in New York City. (Larry Busacca/Getty Images for The New York Times)
Photos: Elon Musk through the years 2014: Actress Talulah Riley (left) and CEO of Tesla Motors Elon Musk attend the 2014 Vanity Fair Oscar Party hosted by Graydon Carter on March 2, 2014, in West Hollywood, California. (Pascal Le Segretain/Getty Images)
Photos: Elon Musk through the years 2015: Tesla CEO Elon Musk speaks during an event to launch the new Tesla Model X Crossover SUV on September 29, 2015, in Fremont, California. (Justin Sullivan/Getty Images)
Photos: Elon Musk through the years 2016: Elon Musk and actress Kate Hudson attend the 2016 InStyle and Warner Bros. 73rd annual Golden Globe Awards Post-Party at the Beverly Hilton Hotel on January 10, 2016, in Beverly Hills, California. (Jason Merritt/Getty Images for InStyle)
Photos: Elon Musk through the years 2017: Maye Musk (left) and SpaceX CEO Elon Musk attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017, in Beverly Hills, California. (Pascal Le Segretain/Getty Images)
Photos: Elon Musk through the years 2018: Elon Musk and Grimes attend the Heavenly Bodies: Fashion & the Catholic Imagination Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2018, in New York City. (Neilson Barnard/Getty Images)
Photos: Elon Musk through the years 2019: SpaceX Chief Engineer Elon Musk (right) speaks with NASA Administrator Jim Bridenstine (center) while viewing the OctaWeb, part of the Merlin engine used for the Falcon rockets, at the SpaceX Headquarters, Thursday, Oct. 10, 2019, in Hawthorne, California. (Aubrey Gemignani/NASA via Getty Images)
Photos: Elon Musk through the years 2020: SpaceX founder Elon Musk celebrates after the successful launch of the SpaceX Falcon 9 rocket with the manned Crew Dragon spacecraft at the Kennedy Space Center on May 30, 2020, in Cape Canaveral, Florida. (Joe Raedle/Getty Images)
Photos: Elon Musk through the years 2021: Tesla CEO Elon Musk and Armin Laschet, CDU Federal Chairman and Prime Minister of North Rhine-Westphalia, talk during a tour of the plant of the future foundry of the Tesla Gigafactory on August 13, 2021, in Grünheide near Berlin, Germany. (Patrick Pleul - Pool/Getty Images)
Photos: Elon Musk through the years 2022: Tesla CEO Elon Musk speaks during the official opening of the new Tesla electric car manufacturing plant on March 22, 2022, near Gruenheide, Germany. Musk is set to be the first trillionaire if shareholders approve a new compensation plan. (Photo by Christian Marquardt - Pool/Getty Images) (Pool/Getty Images)
Photos: Elon Musk through the years 2023: C.E.O. of Tesla, Chief Engineer of SpaceX and C.T.O. of X Elon Musk speaks during the New York Times annual DealBook summit on November 29, 2023 in New York City. Andrew Ross Sorkin returns for the NYT summit for a day of interviews with Vice President Kamala Harris, President of Taiwan Tsai Ing-Wen, C.E.O. of Tesla, Chief Engineer of SpaceX and C.T.O. of X Elon Musk, former Speaker of the U.S. House of Representatives Rep. Kevin McCarthy (R-CA) and leaders in business, politics and culture. (Photo by Michael M. Santiago/Getty Images) (Michael M. Santiago/Getty Images)
Photos: Elon Musk through the years 2024: Elon Musk listens as U.S. President-elect Donald Trump addresses a House Republicans Conference meeting at the Hyatt Regency on Capitol Hill on November 13, 2024 in Washington, DC. As is tradition with incoming presidents, Trump is traveling to Washington, DC to meet with U.S. President Joe Biden at the White House as well as meet with Republican congressmen on Capitol Hill. (Photo by Andrew Harnik/Getty Images) (Andrew Harnik/Getty Images)
Photos: Elon Musk through the years 2025: Billionaire businessman Elon Musk arrives for a town hall wearing a cheesehead hat at the KI Convention Center on March 30, 2025 in Green Bay, Wisconsin. The town hall is being held in front of the state’s high-profile Supreme Court election between Circuit Court Judge Brad Schimel, who has been financially backed by Musk and endorsed by President Donald Trump, and Dane County Circuit Court Judge Susan Crawford. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Photos: Elon Musk through the years 2025: Elon Musk and his son X Æ arrive for a meeting with Senate Committee on Commerce, Science, and Transportation members at the U.S. Capitol Building on May 21, 2025 in Washington, DC. According to a representative, Musk was attending the meeting as CEO of artificial intelligence company xAI to discuss topics unrelated to the Department of Government Efficiency (DOGE). (Photo by Andrew Harnik/Getty Images) (Andrew Harnik/Getty Images)
Photos: Elon Musk through the years 2025: Tesla CEO Elon Musk speaks alongside U.S. President Donald Trump to reporters in the Oval Office of the White House on May 30, 2025 in Washington, DC. Musk, who served as an adviser to Trump and led the Department of Government Efficiency, announced he would leave his role in the Trump administration to refocus on his businesses. (Photo by Kevin Dietsch/Getty Images) (Kevin Dietsch/Getty Images)