Iowa No extension required Kansas Yes, include 4868 with return Kentucky Yes, include 4868 with return Louisiana The state of Louisiana no longer accepts a Federal extension to file as an extension for a Louisiana Individual return.labama Automatic extension Arizona Yes Arkansas Yes California Automatic extension Colorado Automatic extension Connecticut Yes Delaware No District of No Columbia Georgia Yes Hawaii No Idaho Automatic extension Illinois Automatic extension Indiana If there is a balance due or refund due, an extension must be filed.