CA FORM 3510 Line 28. It complains it's not filled in. However, the box is disabled. I saw another same answer says if I am on Windows, I could override it. No, unfortunately, I am on Mac. How can I fix the error? Thanks.
That field comes from the TT/Calif Carryover Worksheet. You should fill out lines 15a-e (or 16a-h if you filed a Form 540NR last year). The quickest way to do that is with Forms mode - open the Calif Carryover Wks.
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