"Since the RMD rule is suspended, RMDs taken in 2020 are considered eligible for rollover. Therefore, RMDs can be rolled over to another IRA, another qualified retirement plan, or returned to the original plan by August 31, to avoid paying taxes on that distribution.
IRS Notice 2020-51 PDF also provides that the one rollover per 12-month period limitation and the restriction on rollovers to inherited IRAs don't apply to this repayment.
The CARES Act provisions apply to most retirement plans, including traditional IRAs, SEP IRAs, SIMPLE IRAs, 401(k) plans, 403(b) plans, 457(b) plans, profit sharing plans and other defined contribution plans. The RMD suspension doesn't apply to qualified defined benefit plans.
Where can I find more information?
More information on the CARES Act and retirement plans, including FAQs, can be found on the Coronavirus-related relief for retirement plans and IRAs questions and answers page."