Affordable Care Act Information Returns (AIR) Operational Status

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, 2018, 2019,
2020 and 2021

2015, 2016, 2017, 2018, 2019,
2020 and 2021



*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.


For more information regarding AIR, please refer to the AIR page on