H&R Block Tax Software Windows 8.1 or higher - https://www.hrblock.com/tax-center/support/software/technical-issues-software/software-system-requir...
TaxAct Windows 8.1 or higher - https://www.taxact.com/system-requirements/
TaxSlayer - Windows 8.1 or higher - https://support.taxslayerpro.com/hc/en-us/articles/360009171674-Supported-Operating-Systems
