@Anstoss wrote:
Thanks. what if I made non-deductible contribution to traditional IRA in late 2018, and did backdoor conversion to Roth early Jan 2019. Where/how should I do the first part to show the money is not subject to tax?
When you entered the 2018 non-deductible contribution on you 2018 tax return there should have been a 8606 form generated.
As I said in the answer in the box above, you use the box 2018 8606 box 14 value to answer the interview question about prior year non-deductible contributions.
When asked if you have made any non-deductible contributions say " "yes" if you did then enter the non-deductible contributions made for tax years before 2019. (Usually zero unless you also made a 2018 or earlier non-deductible contribution. If you do have prior year basis then enter the last filed 8606 line 14 value.).
**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.**
