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June 1, 2019
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How do I enter rollover from after-tax 401K split between Roth IRA and regular IRA ?

  • June 1, 2019
  • 3 replies
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I had made after-tax contributions to my fidelity 401K account. After about a year, I rolled over the after-tax contributions to my Roth IRA account ("mega backdoor Roth IRA"), and the investment gains on those contributions to a regular IRA (to defer paying taxes on them). 

I am unable to figure out how to enter this information through the 1099-R section on turbotax online. It doesn't seem to support an option for indicating that part of the rollover is non-taxable (the Roth IRA portion) and part is tax deferred (regular IRA portion). 

Thanks.

Best answer by dmertz

You must split the code G Form 1099-R into two, one for the after-tax portion (which will include the box 5 entry) rolled over to the Roth IRA and another for the pre-tax portion rolled over to the traditional IRA.  The dollar amounts on these two Forms 1099-R must total to match the original.  The rest of the information on the original Form 1099-R will be duplicated on both of the entered Forms 1099-R.

3 replies

June 1, 2019
What was the code in box 7?
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June 1, 2019
'G'
dmertzAnswer
Employee
June 1, 2019

You must split the code G Form 1099-R into two, one for the after-tax portion (which will include the box 5 entry) rolled over to the Roth IRA and another for the pre-tax portion rolled over to the traditional IRA.  The dollar amounts on these two Forms 1099-R must total to match the original.  The rest of the information on the original Form 1099-R will be duplicated on both of the entered Forms 1099-R.

June 1, 2019
Thanks very much. Your suggestion makes total sense. I was able to enter the information in Turbotax and the return forms look good!