On February 18, 2026, Kwan Yoon, Hyundam LLC, and Goodam Holdings LLC filed a petition to quash summonses against the United States of America in the U.S. District Court for the Northern District of California (Case No. 3:26-cv-01423). This filing initiates a tax suit, with the IRS identified as the third-party defendant. The filing fee of $405 was paid, and exhibits were attached to the petition.

This action represents a direct challenge to IRS summonses. Regulated entities, particularly those involved in tax matters or facing IRS scrutiny, should monitor this case for potential implications regarding summons enforcement and taxpayer rights. While no specific compliance deadline is mentioned, the filing itself indicates an active legal dispute that may require legal counsel for entities facing similar situations.