When using the Free File Fillable Forms program, we recommend you review all the information on this page. CAUTION: Never use handheld mobile devices with this program Use a Recommended Browser and Operating System If you fail to heed this caution, the program may cease working with your browser, operating system or device at any time and you may not be able to recover your account or your tax information. Recommended Operating Systems and Browsers Operating Systems: Windows and Mac only Browsers: Free File Fillable Forms will run best using the latest versions of the following browsers: Google Chrome http://www.google.com/chrome Microsoft Edge https://www.microsoft.com/en-us/windows/microsoft-edge Mozilla Firefox https://www.firefox.com/ Safari https://www.apple.com/safari/ Browser settings: Set the language to default Enable JavaScript and cookies Turn off: Pop-up blockers Auto-fill features Optimize Your Experience You can optimize your Free File Fillable Forms experience by meeting these minimum requirements: Processor: Intel Core 2 Duo or higher RAM: 1 GB Monitor: 1280x960 or higher screen resolution Internet Connection: High-speed connection Other Software: Acrobat Reader 8.0+ (for printing) Oldest Supported Operating Systems: Windows 7 Windows 8 & 8.1 Windows 10 Mac OS X 10.7 (Lion) Mac OS X 10.10 (Yosemite) Mac OS X 10.11 (El Capitan) Mac OS X 10.12 (Sierra) Mac OS X 10.13 (High Sierra) Mac OS X 10.14 (Mojave)
