56 pages, rev. May 2026 "What's New for Tax Year 2025 ... [1] Due to the planned retirement of the Filing Information Returns Electronically (FIRE) System, the IRS will no longer accept new Information Returns (IR) Applications for Transmitter Control Codes (TCCs) beginning July 21, 2026. Existing applicants can continue to update their applications through December 2026, after which they will become read-only and retained for historical reference. [2] Current FIRE users must complete an Information Returns Intake System (IRIS) Application for TCC and transition to IRIS for electronic filing beginning with the 2027 filing season. IRIS will be the only information returns electronic filing system, including current year, prior year, or corrections, after January 1, 2027."  MORE >>