Per person - any IRA owned by that person. IRA's are Individual.
Per IRS Pub 590A
https://www.irs.gov/publications/p590a#en_US_2020_publink1000230578
Application of one-rollover-per-year limitation.
You can make only one rollover from an IRA to another (or the same) IRA in any 1-year period regardless of the number of IRAs you own. The limit will apply by aggregating all of an individual's IRAs, including SEP and SIMPLE IRAs as well as traditional and Roth IRAs, effectively treating them as one IRA for purposes of the limit. However, trustee-to-trustee transfers between IRAs aren’t limited and rollovers from traditional IRAs to Roth IRAs (conversions) aren’t limited.
Example.
John has three traditional IRAs: IRA-1, IRA-2, and IRA-3. John didn’t take any distributions from his IRAs in 2020. On January 1, 2021, John took a distribution from IRA-1 and rolled it over into IRA-2 on the same day. For 2021, John can’t roll over any other 2021 IRA distribution, including a rollover distribution involving IRA-3. This wouldn’t apply to a conversion.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
