The purpose of this rulemaking is to implement legislative changes, as well as general updates to conform with changes to the formatting of IRS form titles and numbers. These changes require revisions for four forms used to administer Florida Corporate Income Tax. The revised forms include Form F-1120A, Florida Corporate Short Form Income Tax Return; Form F-1120, Florida Corporate Income/Franchise Tax Return; Form F-1120N, Instructions for Corporate Income/Franchise Tax Return for taxable years beginning on or after January 1, 2021; and Form 1120XN, Instructions for Preparing Form F-1120X Amended Florida Corporate Income/Franchise Tax Return.