For our case (S-corp):
1. Go under Forms View (Click on "Forms" in the upper right corner.)
2. On the left-hand pane: Click "Oth Add/Ded" under the major heading "California S Corporation"
3. The top of the form it brings you to says "Form 100S, Lines 7 and 12"
4. Item 9 on that page says "Other state adjustments to ordinary income (loss)".
5. I entered "EIDL Grant Received" for the text and put the amount in the right-hand column.
You'll also see further down on that page more verbiage about the EIDL, and for some reason, the numbers column is not a simple addition. The bottom line though is that the bottom of part one "Total to Form100S, line 7" then has the value of the EIDL Grant, which solves the balance problem.
There's clearly a bug in TurboTax, which can be further exercised by the procedure outlined in this post. In short, if you go back an uncheck the EIDL in TurboTax, finish the form, and then go back and re-check the EIDL in TurboTax, the balance sheet mismatch will double. If you do that again, it will triple.
Anyway, hope that helps and good luck to you.
