The AATS environment will be unavailable beginning Monday, October 30, 2023, at 9:00 a.m. Eastern time through Wednesday, November 1, 2023, at 9:00 a.m. Eastern time.
IRS will update AATS programming for Filing Season 2024/Tax Year 2023 during that time. Please do not attempt to access the Application to Application (A2A) and User Interface (UI) Channels during the Shutdown period.
The AATS environment will be available beginning Wednesday, November 1, 2023, at 9 a.m. Eastern time, for Filing Season 2024/Tax Year 2023 testing, which includes Tax Year(s) 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016 and 2015.
Beginning November 1, 2023:
• Tax Year 2023 will be the current year in AATS
• Tax Year(s) 2022, 2021, 2020, 2019, 2018, 2017, 2016 and 2015 will be accepted as prior year returns in AATS
The Production environment will be still available during the AATS Shutdown, except for the routine maintenance window that occurs each Sunday.
• Tax Year 2022 is still the current year in Production
• Tax Year(s) 2021, 2020, 2019, 2018, 2017, 2016 and 2015 are still accepted as prior year returns in Production |
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