President Donald Trump is suing the Internal Revenue Service and the Treasury Department, and is seeking $10 billion in damages.
Trump, Donald Trump Jr., Eric Trump, and the Trump Organization sued the IRS and the U.S. Treasury Department in federal court in Miami on Thursday, following the leak of their tax returns by a former IRS employee in 2019 and 2020.



No. You can sue the IRS for all kinds of reasons related to your taxes. You’re expected to go through administrative channels first, but you absolutely can sue the IRS.
https://www.law.cornell.edu/uscode/text/26/7433