Re: How do I enter aftertax 401k contributions to reduce taxable amount of 1099R with Code G? Both Gross and taxable amounts shown. Rolled to ROTH IRA should not be taxable.

qbteachmt · ‎03-15-2022

Here is the help article:

The 1099-R has a value in Box 2a and you don't agree with it? Why would it be wrong? Did you enter the post-tax contribution basis for Box 5?

Here's a picture for mega backdoor Roth, to match that one against:

See if that helps.

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