Item 9.01. Financial Statements and Exhibits (d) Exhibits. Exhibit Description 16.1 Letter from Moss Adams LLP to the Securities and Exchange Commission dated June 5, 2025 ──────────────────────────────────────────────────────────────────────────────────────────────────────── 104 Cover Page Interactive Data File, formatted in Inline XBRL. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: June 5, 2025 8x8, Inc. By: /s/ KEVIN KRAUS Kevin Kraus Chief Financial Officer