Information Returns Intake System (IRIS) Shutdown/Cutover and Maintenance Schedule
In order to prepare for Filing Season 2025/Tax Year 2024, the IRIS Production environment Shutdown/Cutover for all transmissions, including corrections and replacements, will begin on Tuesday, December 03, 2024, 12:00 a.m. Eastern time.
Please do not attempt to access the IRIS Production environment via the Application to Application (A2A) and/or Taxpayer Portal channels during the Shutdown/Cutover period.
We'll provide the IRIS Production environment Start-up date/time later via a QuickAlerts bulletin.
The IRIS AATS environment will still be available.
Taxpayer Portal: Operational
Application-To-Application (A2A): Operational
IRIS Assurance Testing System (ATS): Operational
For more information, see E-file Forms 1099 With IRIS.