The "Auto Reenroll Act of 2025" amends the Internal Revenue Code and the Employee Retirement Income Security Act of 1974 to allow for periodic automatic reenrollment in certain employer-sponsored retirement plans. This legislation specifically targets qualified automatic contribution arrangements (QACAs) and eligible automatic contribution arrangements (EACAs) . Its primary purpose is to encourage greater participation in workplace retirement savings. Under the bill, an employee's prior election to opt out of a QACA or EACA can now be set to terminate after a period ranging from one to three years. Once this opt-out election expires, the employee will be automatically reenrolled into the retirement plan at the uniform contribution percentage. To avoid reenrollment, the employee must then make a new, affirmative election to not participate or contribute. These amendments apply to plan years beginning after the date of enactment.