The tax year 2023 Modernized e-File (MeF) Assurance Testing System (ATS) test scenarios for exempt organizations and other tax-exempt entities returns are listed in the table. Also included are the Form 8038-CP test scenarios for tax year 2024, filed in processing year 2024. Please see the MeF ATS page for the complete list of test scenarios for all forms supported by MeF. Please monitor this page for any ATS scenario updates. Form type Tax year Comments 990 ZIP 2023 Updated 12-6-2023 990-EZ ZIP 2023 Updated 12-6-2023 990-PF ZIP 2023 Updated 12-6-2023 990-N ZIP 2023 990-T ZIP 2023 Updated 1-24-2024 1120-POL ZIP 2023 Updated 12-6-2023 8868 ZIP 2023 Updated 12-6-2023 4720 ZIP 2023 5227 ZIP 2023 Updated 1-24-2024 5330 ZIP 2023 8038-CP ZIP 2024 Exempt organizations and other tax-exempt entities MeF XML schemas
