26 CFR § 1.408A-7 - Reporting.
This section sets forth the following questions and answers that relate to the reporting requirements applicable to Roth IRAs:
Q-1. What reporting requirements apply to Roth IRAs?
A-1. Generally, the reporting requirements applicable to IRAs other than Roth IRAs also apply to Roth IRAs, except that, pursuant to section 408A(d)(3)(D), the trustee of a Roth IRA must include on Forms 1099-R and 5498 additional information as described in the instructions thereto. Any conversion of amounts from an IRA other than a Roth IRA to a Roth IRA is treated as a distribution for which a Form 1099-R must be filed by the trustee maintaining the non-Roth IRA. In addition, the owner of such IRAs must report the conversion by completing Form 8606. In the case of a recharacterization described in § 1.408A-5 A-1, IRA owners must report such transactions in the manner prescribed in the instructions to the applicable Federal tax forms.