On June 29, 2016, the Treasury and the Internal Revenue Service published final regulations (T.D. 9733) requiring annual country-by- country (CbC) reporting by U.S. persons that are the ultimate parent entity of a multinational enterprise group (MNE) with annual revenue for the preceding accounting period of $850 million or more. The regulations are effective on June 30, 2016, and made several changes to the proposed regulations issued last December.