"Conventional wisdom says that after leaving your job, it's smart to roll your old 401(k) into an IRA.... There are, however, certain situations -- some of them fairly common -- in which it makes sense to leave your old 401(k) alone or move it somewhere other than an IRA: 1. You plan to retire between ages 55 and 59-1/2 ... 2. You're planning a Roth conversion ... 3. Your old 401(k) has better investment options ... 4. You have employer stock in your 401(k)."  MORE >>