Trump's agreement to drop his meritless suit against the IRS (e.g., statute of limitations had expired) includes an agreement that the government drop all tax proceedings against him, his family, and his companies. The NY Times estimates this alone may be worth as much as $100 million to him. https://www.nytimes.com/2026/05/19/us/politics/trump-irs-doj-lawsuit-audit.html?nl=breaking-news&segment_id=220095
I.R.S. to Drop Audits of Trump and Family

As part of the Justice Department’s deal, officials vowed not to pursue any matters, including those involving President Trump’s tax returns, that are pending.

The New York Times