There is a great scene in the movie On The Basis Of Sex. The actors portraying Ruth Bader Ginsburg and her husband, Martin Ginsberg, a very high-level tax attorney, early in their careers are reading in separate rooms. He comes in with something he wants her to read and she snaps that she doesn’t read Tax Court cases. In that moment she showed her future as a Supreme Court Justice. Not many Tax Court cases reach the Supreme Court. So when one does it’s exciting. And, as it happens, Commissioner of Internal Revenue v Zuch contains some practical lessons worth considering.

Kwong v. United States: A Pandemic-Era Decision That Could Reshape Tax Deadlines, Penalties, and Refund Opportunities
The 2025 court decision, Kwong v. United States, is quietly gaining traction among tax professionals for exactly these reasons. Its implications could be far-reaching, potentially opening the door to refund claims, penalty abatements, and revived tax deadlines that many assumed were long closed. But there’s a catch: the opportunity to act may be time-sensitive, and the window to preserve claims could begin closing in just a few short weeks. Here’s what the court actually decided and why it matters now.


