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Level 7
December 30, 2020
Question

After-Tax Contributions to 401k rolled into a Traditional IRA in error

  • December 30, 2020
  • 4 replies
  • 17 views

I have a new client who for many years contributed after-tax $$ to his regular (NOT ROTH) 401k plan. 

He left his employer in 2012 and at the time had $100,000 in his regular 401k which consisted of $25,000 in after-tax contributions and $75,000 in regular contributions. 

When the 401k was rolled over bac in 2012, the pre-tax funds were rolled into a Traditional IRA and the $25,000 (after-tax money) was rolled into a separate Traditional IRA as well. 

Fast forward to 2020...the client's advisor wanted to do a Roth conversion, so the topic came up about how the client had contributed to a regular 401k with after-tax money, so he was wondering why he would have to pay tax on the Roth conversion. (My client had originally though that the after-tax money was rolled into a Roth IRA - which it wasn't).

So, the question is, can he do a Roth conversion now with the Traditional IRA that holds the after-tax money as well as the earnings on it for the last 8 years? Or is he basically screwed at this point because he should have acted within 60 days of the rollover back in 2012? Any help would be appreciated.

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4 replies

qbteachmt
Level 15
December 30, 2020

"why he would have to pay tax on the Roth conversion."

Every taking or conversion includes the computation of Basis across all Traditional IRA accounts. Of course you can make any conversion you want to. It will all be prorated against total basis and total account(s) balance for the conversion. Only the pre-tax and earnings % is taxable.

For your example, then, 25% of the conversion is not taxable.

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Level 7
December 30, 2020

Right agreed - will be prorata allocation of the taxable portion of the conversion.