Fla. Admin. Code R. 12C-1.0211
(2) An “incomplete return” is a return which lacks uniformity, completeness, and arrangement such that the Department cannot readily accomplish the physical handling, verification, or review of the return. Such returns include, but are not limited to, those returns to which any one of the following conditions apply:
(f) Failure to attach any of the following when required:
1. Federal Forms 851 or 1122.
2. Federal Form 1120X or copy of a Revenue Agent’s Report (RAR).
3. Federal Form Schedule D.
4. Federal depreciation schedule on Form 4562.
5. Explanation for adjustments on Schedules M-1 and M-2.
6. Florida balance sheet if different from balance sheet on Federal return and schedule reconciling differences.
7. Any other required schedule or statement for explanation of an entry on a line item of the Florida corporate return, Form F-1120.
8. Failure to include the FEI number of the corporate entity.
9. Federal Form 4626.
10. Omission of any other material item.
Rulemaking Authority 213.06(1), 220.21, 220.51 FS. Law Implemented 220.211 FS. History–New 12-21-88, Amended 4-8-92, 5-17-94.