ROTH IRA
Many retirees also find themselves in a lower tax bracket than they were in pre-retirement, so the tax-deferral means the money may be taxed at a lower rate.
Contributions may be withdrawn at any time without taxes or penalties.
Must begin taking required minimum distributions (RMDs) at age 72. (70 ½ if you reach 70 ½ before January 1, 2020).