According to IRS 8960, Line 4a is supposed to be the sum of Schedule (form 1040), Line 3 and Schedule (form 1040), Line 5 and Schedule (form 1040), Line 6, but turbo tax populated Lin4a with 0. This bug cause e-file to be rejected with the error
F8960-019-06 - If Form 8960, 'NetRentalIncomeOrLossAmt' has a non-zero value, then it must be equal to sum of Schedule 1 (Form 1040), 'BusinessIncomeLossAmt', 'RentalRealEstateIncomeLossAmt' and 'NetFarmProfitLossAmt' unless all of the following conditions are true: 1) Filing status of the return is Married filing jointly or Qualifying surviving spouse and 2) Form 8960, 'Section6013gInd' and 'Section6013hInd' are not checked and 3) Form 8960, 'FilingThresholdAmt' equals 125000.
