Retirement tax questions

Code G & H are not the same.   Do not use a code G.

If your 1099-R has code H then use code H in TurboTax.    Code G is for a regular 401(k), NOT a 401(k) Roth.
**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.**