You will need to file a 5329 form and request a waiver of the penalty. (The waiver would only be denied if there is no reasonable explanation and the missed RMD was not taken at all.)
If you do have a 2018 1099-R to report then the RMD question in the interview will go to the form 5329 waiver interview if you say that the 2018 RMD was not taken.
TurboTax will add the 5329 and waiver request. It is very unlikely that it would be denied.
**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.**
