TurboTax is not particularly good about providing the appropriate changed form if it's a form that would not have been included had the original tax return been filed correctly in the first place. Since TurboTax removed the Form 8606, with the amendment I would file a manually prepared corrected Form 8606 showing a zero on line 1 and the corresponding changes down the form, particularly correcting the basis originally reported to the IRS on line 14. Absence of a Form 8606 in an amendment does not change the originally filed Form 8606. By not filing a corrected Form 8606, you run the risk of the IRS questioning the original Form 8606 when they do not receive a Form 5498 from any IRA custodian corroborating your reporting of a nondeductible contribution. In fact they *should* question it.
Your amendment would consist of just Form 1040X and the corrected Form 8606. The corrected Form 8606 would show a zero on line 1 instead of the originally reported amount and, if line 2 of the original was zero, a zero on line 14. Since nothing was reported on the original Form 1040 line 32 or Form 1040A line 17, I'm not sure why the amendment would result in any additional refund or tax due. I would have expected no change.
See the instructions for 2015 Form 8606 regarding amending the form:
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-prior/i8606--2015.pdf">https://www.irs.gov/pub/irs-prior/i8606--2015.pdf...>
You do not have to wait to file your 2016 tax return. However, it would normally be best to begin your 2016 ta return by transferring in from your amended 2015 tax file instead of the original.
