I am trying to complete my partners taxes but when it comes to entering my spouses additional information I get an error. When I enter net income (line 23600) it says "your spouse's net income (line 23600) should be calculated by subtracting social benefit repayments (line 23500) from their net income before adjustments (line 23400)." I have been doing our own taxes for years and never seen this before. On their detailed tax summary, line 23500 says 0.00 and line 23400 isn't there. I have no clue what it means or what to do!