Buggy TuroboTax doesn't fill line 8 of form 8606 correctly

[robot9998]

I asked in a previous thread.  but I didn't ask clear questions. let me provide more context here.  It seems that TurboTax is buggy with 8606 for backdoor roth correctly.  Specifically lines 6-12 of Part I are a left blank. At least it should have filled line 8 because I did conversion.
I had 0 traditional IRA prior to 2020.  I contributed 7,000 traditional IRA and converted to Roth shortly.  Received 1099R.  Below are my answers and outcome of the form.

Traditional

[robot9998]

Traditional & Roth Contributions

=======================

Is This a Repayment of a Retirement Distribution? No

Tell Us How Much You Contributed?  7,000

Did You Change Your Mind? No

Any Excess IRA Contributions Before 2020? No

Any Nondeductible Contributions to XXX's IRA? No  (I flipped to yes and it didn't make a difference)

Tell Us the Value of All Your Traditional IRA Accounts?  0

Income Too High To Deduct an IRA Contribution

[robot9998]

1099-R

======

Who does this 1099-R belong to? Xxx

Who gave you a 1099-R? "Finanacial institution"

Box1: 7,000.02

Box2a: 7,000.02

Box 2b:

"Taxable amount not determined box is checked":  checked

"Total distribution is checked": checked

Box 7: 2

"IRA/SIMPLE/SEP box is checked": checked

Do any of these situations apply to you? I didn't choose any.

"Tell us if you moved the money through a rollover or conversion":   "I converted some or all of it to a Roth IRA"

Did you convert all of this $7,000.02 (Box 1) to a Roth IRA?  Yes, all of this money was converted to a Roth IRA

[robot9998]

8606

Part I

Line 1: 7,000

Line 2:  0

Line 3: 7,000

Line 4: blank

Line 5: 7,000

Line 6: blank

Line 7: blank

Line 8: blank

Line 9: blank

Line 10: x

Line 11: blank

Line 12: blank

Line 13: 7,000*

Line 4: 0

Line 15a: 0

Line 15b: blank

Line 15c: 0*

Part II

Line 16: 7,000

Line 17: 7,000

Line 18: 0

[DanaB27 · Accepted solution]

The * next to line 13 indicates that the amount was calculated using the Taxable IRA Distribution Worksheet per IRS Pub. 590-B. It should state this on your Form 8606 and this is correct.

[macuser_22 · Accepted solution]

Answered in your other post.

https://ttlc.intuit.com/community/retirement/discussion/re-turbotax-bug-for-8606-i-did-backdoor-roth...

[MK100]

I am having exactly the same issue with you. line 8 is blank while the line 16 is correct. How did you solve the issue? I think whatever on line 16 should also be on line 8, right?

[dmertz]

@MK100 , this was already answered above.  Because you have nondeductible traditional IRA contributions and traditional IRA distributions in the same year, TurboTax is doing the calculation on TurboTax's version of Worksheet 1-1 of IRS Pub 590-B and therefore only populating the lines on Form 8606 that are to be populated when the worksheet is being used.

[MK100]

@dmertz  Thank you!  Are you saying it's ok that line 6-12 are blank?

[dmertz]

There is a note provided by TurboTax at the bottom of your Form 8606 Part I that indicates that the worksheet was used to calculate the nontaxable amount.  The instructions for Worksheet 1-1 in Pub 590-B indicate that lines 6 through 12 of Form 8606 are to be left blank when this worksheet is used.