Annual return requirement
(B) Annual return requirement(1) In general. Each controlled participant must attach to its U.S. income tax return, for each taxable year for the duration of the CSA, a copy of the original CSA Statement that the controlled participant filed in accordance with the 90-day rule of paragraph (k)(4)(iii)(A) of this section. In addition, the controlled participant must update the information reflected on the original CSA Statement annually by attaching a schedule that documents changes in such information over time.