The South Dakota Amended Annual Report is a state filing that is required to be submitted each year by businesses registered to do business in the state of South Dakota. It is used to update the information that was submitted on the original annual report. This includes changes to the registered agent, address, and other information that was originally submitted. There are two types of South Dakota Amended Annual Reports: the Standard Amended Annual Report and the Amended Annual Report for Conversion. The Standard Amended Annual Report is used to update the information that was originally submitted on the original annual report. The Amended Annual Report for Conversion is used when a business has converted from another entity type, such as an LLC, to a corporation in South Dakota. Both the Standard and Conversion Amended Annual Reports must be filed with the Secretary of State's office by the due date.