The Internal Revenue Service reminds taxpayers who converted amounts to a Roth IRA or designated Roth account in 2010 that in most cases they must report half of the resulting taxable income on their 2012 returns.
Normally, Roth conversions are taxable in the year the conversion occurs. For example, the taxable amount from a 2012 conversion must be included in full on a 2012 return. But under a special rule that applied only to 2010 conversions, taxpayers generally include half the taxable amount in their income for 2011 and half for 2012, unless they chose to include all of it in income on their 2010 return.
Worksheets and examples can be found in Publication 590 for Roth IRA conversions and Publication 575 for conversions to designated Roth accounts. Taxpayers who made Roth conversions in 2012 or are planning to do so in 2013 or later years must file Form 8606 to report the conversion.
As in 2010 and 2011, income limits no longer apply to Roth IRA conversions.
Please see The Gold Book, Roth IRAs for additional information and rules.