1. How do I form a corporation? 2. How do I form a nonprofit corporation?Form an S corp in Arizona in 7 steps to avoid double taxation on corporate income. Free guide to the easiest way to file your Arizona Annual Report. Corporations, partnerships, S corporations, and fiduciaries can now electronically file their income taxes to the Arizona Department of Revenue (ADOR). Conducting a successful annual meeting requires knowledge of the association's documents, planning, organization, preparation and execution of the plan. An LLC is easier to set up and receives many of the same benefits as corporations but with less regulation. NOTE: See pages 18 and 20 for instructions on completing. Arizona Forms 120S, Schedule(s) K-1 and K-1(NR). Check Your Initial Election Documents.