An update for HandiTax 2017 is needed to resolve Error: 'CMN.ATO.GEN.500127 Year of return is invalid'.
Get all users to log out of HandiSoft and Microsoft programs.
Take a backup of your HandiSoft system.
Download and run HandiTax 2017 V3.03.
Once the upgrade is complete, open HandiTax 2017 then attempt your lodgment.
