Conversion Tools – Include Both Incomes?
I have run a few tools online and was wondering – whene entering the total value of a traditional IRA being consiedered for a conversion, would I add both mine and my spouses together (as well as combine the basis of each)? Seems if we are filing jointly and also planning to convert part of each of our accounts, this would make more sense than using just my ira alone.
Permalink Submitted by Alan Spross on Thu, 2010-04-01 18:13
Most calculators only want the actual amount you plan to convert. It is better to convert the TIRA of the spouse with the highest basis percentage first so you would use the basis for that particular spouse. However, if you plan to use TIRAs of both spouses you would have to manually figure out a weighted average amount of basis separately before entering it unless the calculator is comprehensive enough to collect all this data separately from your inputs.
On the subject of basis for conversions, the final taxable amount is based on year end values, so it could change considerably if the total TIRA balance rises or drops considerably between the date of conversion and year end.
For 2010, a calculator should also address whether you plan to report the conversion in 2010 or take the 2 year deferral. Either way, the taxable % is based on year end 2010 values and the amount of actual taxable income would then be split between 2011 and 2012. Moreover, one spouse can defer and the other opt out of deferral in order to use some of the 2010 tax bracket, but a good calculator would have to address these options.