Roth IRAs are popular because when the money is withdrawn in retirement, there's no tax due. These accounts are enjoying a new surge of popularity now that there's no longer an income limit on who can convert a traditional IRA to a Roth account.

Many individuals entered 2010 uncertain over the fate of federal tax incentives scheduled to expire at year-end. On December 17, President Obama signed the Tax Relief, Unemployment Insurance Reauthorization and Job Creation Act of 2010 (H.R. 4853) aft...