Download files with temporary workaround solutions to known issues with the Information Returns Intake System (IRIS). IRIS Taxpayer Portal and Application to Application (A2A) known issues and solutions are listed by tax year. IRIS Taxpayer Portal known issues and solutions Tax year Current and resolved issues and solutions 2023 IRIS Taxpayer Portal TY 2023 known issues and solutionsXLSX (updated April 24, 2024) IRIS A2A known issues and solutions Tax year Current and resolved issues and solutions 2023 IRIS A2A TY 2023 known issues and solutionsXLSX (updated April 24, 2024) IRIS help Get support with IRIS: Help desk Call Mon. – Fri. 7:30 a.m. – 7 p.m. Eastern time. Toll-free: 866-937-4130 International: 470-769-5100 TTY/TDD: 866-937-4130. Use your choice of relay. Working group meetings Find meetings and notes for A2A developers, transmitters and state agencies. Known issues and solutions Get solutions to known issues with IRIS. Related Guide to information returns General instructions for certain information returns Video How to use the IRIS Portal video CSV file upload demonstration