Law.com's legal forms guide includes the Form F11 20x, which is used to amend the Florida corporate income franchise and emergency excise tax return for corporations operating in Florida. To obtain this form, visit the website of the Florida Department of Revenue. Here is how to fill out the form: 1. Fill in your business name and address at the top of the form in Step 1. 2. In Step 2, check the that corresponds to the reason for amending the return – whether it's due to an adjusted federal return, an IRS audit, or another reason. 3. Provide your federal employer identification number and the date of the tax year in question in Step 3. 4. On the first page, in Step 4, you'll find lines one through ten. In column A, enter the figures from your original or last filed amended return. In column B, enter the correct amounts and attach any supporting schedules that document these changes. 5. Move to the second page and complete lines 11 through 23 as instructed to determine your payment or refund. Transfer lines 20, 21, and 23 to the bottom of the first page where indicated. 6. On the second page, provide the name and phone number of a contact person in Step 6. 7. In Part 2, required in Step 7, you must provide a detailed explanation of all changes reported. If the space provided is not enough, attach additional sheets. 8. At the bottom of the form, in Step 8, the form should be signed by an officer and their title. 9. If a paid preparer completed the form, they must provide all requested information, as stated in Step 9. To learn more about legal forms and procedures, visit laws.com for additional informative videos.