How do I enter line 23400 for spouse net income it does not exist on detailed summary?

[rendun]

There seems to be no line 23400 in the detailed summary and yet it asks me to report the income from this line for my spouse on my return.

[TurboTaxSusan]

Line 23400 is not shown on the detailed tax summary. You would have to look on the PDF archive of the return to see that line number, as well as the Total split income from Line 68360 of T1206 (if applicable).

If your spouse didn't have any social benefit repayments, then Line 23400 is the same as Line 23600.