OK Part 1 Column B, Part 2 Present E-File Rejection Help

[Sue26]

Hi guys,

Our OK Corp Inc Tax Return Form 512 was rejected due to a software defect. More details provided show that when Part 2, OK taxable income of a unitary enterprise, is applicable (it is applicable in our case), Part 1 column B should be null (we left it blank). But when Part 1 line 32 column B nets to zero, this software defect happens. Is this something any one experienced before? Is there any workaround to e-file this return without experiencing this issue? Any suggestion is appreciated. Below please see the e-file reject.

OKLAHOMA Filing Rejected - This filing was rejected by the taxing agency on March 14, 2026. You need to fix errors that caused the rejection before it can be accepted by the agency. Follow these instructions for fixing the errors and you can transmit again at no additional charge.
Reject: Error 512-009: Form 512, Part 1, line 32, Column B (TaxableIncome, StateAmount) should equal line 12, Column B (TotaIncome, StateAmount) minus line 29, Column B (TotalDeductions, StateAmount) minus line 31a, Column B (NetOperatingLossDeduction, StateAmount) minus line 31b, Column B (SpecialDeductions, StateAmount) unless Part 2 is present. If Part 2 is present, Part 1, Column B should be null.

Resolution: This reject is the result of a defect in the program. This defect occurs when Form 512 Part 1 line 32 column B (on page 4) nets to zero. This defect will be corrected in a future update. (ATC-551380)

[PhoebeRoberts]

That reject says "We have an issue that makes it impossible to e-file an OK C-Corp. We're aware of the issue and trying to fix it. Wait patiently for a software update that fixes it."

(I also have this reject, alas.)