Abstract: An IRA rollover occurs when a taxpayer receives a distribution from one IRA and within 60 days deposits the assets into another IRA. This transfer to the receiving IRA is called a rollover contribution. A one-rollover-per-year rule used to apply on a per-IRA basis. However, starting in 2015, it applies to an individual’s IRAs in the aggregate. This article explains the details and why trustee-to-trustee transfers are preferable.