Failure to enter value of Traditional IRA on Dec. 31, 2021 was not detected, resulting in miscalculation of tax owed.

[jdickins11]

My failure to enter the value of my traditional IRA on December 31, 2021 was not detected by the TT Federal Review.  As a result, there was no entry on form 8606 Line 6 and a gross miscalculation of the taxable amount of my distributions.

I didn't see any reason why a blank on 8606 Line 6 would ever be valid. It looks like a TT bug to me. Is this the case?

[fanfare · Accepted solution]

If you closed out your IRA, Line 6 would be zero, so that is an allowed value.

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Always print a copy of your completed tax return for your records, and review it carefully before e-Filing.
You will need it if you are audited by the IRS, or to amend if a TurboTax update changes your return or for any other reason,
SUCH AS,  your form 8606 was incomplete

AND, to find your AGI next year.

[dmertz]

This concern has been made to those at TurboTax Product Quality many times in the past and they've elected to ignore it.  They consider it to be user error when a failure to enter the year-end value results in a miscalculation on Form 8606. 

[jdickins11]

Thanks for the timely and informative answers.  While I found my error with my usual manual checks, I was miffed that TT didn't tell me first.  I expect that valid missing values would be very rare in this case.