Affordable Care Act Information Returns (AIR) Operational Status

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Affordable Care Act (ACA) information returns and transmittals are electronically filed through the ACA Information Return system, also known as AIR. 



AATS (test) 

AIR System Status

System Status Operational*


Tax Years Available 2015, 2016, 2017 and 2018 2015, 2016, 2017, 2018 and 2019


AIR Production Shutdown/Cutover

AIR Production will shutdown on Friday, December 20, 2019, at 5:00 p.m. Eastern time to prepare the system for the upcoming filing season.

AIR Production for Filing Season 2020 will begin on Wednesday, January 15, 2020, at 9:00 a.m. Eastern time.

AATS (test) will remain open during this period with the exception of the routine maintenance builds scheduled every Sunday.


*Scheduled Maintenance Build:

A routine maintenance build is scheduled every Sunday. The system will be unavailable from 12:00 a.m. to 12:00 p.m. Eastern time.

On Sunday, December 15, 2019, the maintenance build will be extended to 5:00 p.m. Eastern time.  The extended maintenance build will only impact the UI Channel.  

On Sunday, December 29, 2019, the maintenance build will be extended to 7:00 p.m. Eastern time.

For more information regarding AIR, please see the AIR page on