If you specifically instructed the 401(k) administrator to transfer the after-tax money to a Roth IRA and it was done as a direct trustee-to-trustee transfer (they can give you a check made out to your Roth IRA to deposit with the IRA trustee) then the 1099-R that you should receive in Jan. 2021 should have a code G in box 7, zero in box 2a and the after-tax money in box 1 and box 5.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
