topic BUG: Form 1040-SR, line 12c in Get your taxes done using TurboTax

BUG: Form 1040-SR, line 12c

wsteinborn — Mon, 09 Mar 2026 06:25:02 GMT

I filed my taxes and then found a bug in Form 1040-SR:

Lines 12a and 12b are added into 12c, but 12c is appearing blank.

Later, the value that should appear in 12c is used, so the calculation is happening, but the 12c field shows blanks.

I cannot imagine the IRS is going to like that.

Re: BUG: Form 1040-SR, line 12c

JamesG1 — Sun, 06 Feb 2022 13:30:08 GMT

What version of TurboTax are you using? Is the view the same in the regular 1040 or only in 1040-SR?

Are you able to view If you are in a Desktop version, are you able to enter the correct value in line 12c?

Are you able to delete and re-enter?

Please clarify.

Re: BUG: Form 1040-SR, line 12c

wsteinborn — Mon, 07 Feb 2022 16:06:35 GMT

It is TurboTax Deluxe 2021, Desktop, version [number removed]

In "View/Forms":

The regular form 1040 shows line 12C.

The 1040/1040SR worksheet shows 12C also correctly

Line 12C is calculated by TurboTax, so I would have to tamper with a few other lines.

Since I have already filed my taxes, I am not willing to do that.

My BIG QUESTION is, did the file sent to the IRS have 12C populated? Or blank ?

Snapshot of the worksheet:

Re: BUG: Form 1040-SR, line 12c

HeatherPLO — Mon, 07 Feb 2022 16:15:38 GMT

@wsteinborn

Please reach out to us directly so we are able to review your details and better assist you. To contact us, please reference this Help Article.

Re: BUG: Form 1040-SR, line 12c

JohnH1 — Mon, 07 Feb 2022 16:20:22 GMT

Is this a snapshot of the form in TT or from the PDF that you saved before filing?

You can certainly OVERRIDE that line and see if it changes your bottom line (tax due or refund). You dont have to save it, just exit without saving or save it to another name. It may be too small of a difference to care about.

Re: BUG: Form 1040-SR, line 12c

MichelleLO — Mon, 07 Feb 2022 16:49:17 GMT

Please see the solution posted in the thread here to assist with correcting this error.