What does the new Schedule 4 of the 1040 look like?
The Tax Cuts and Jobs Act changed the 1040 and many supplementary schedules were added. Schedule 4 was where the taxpayer's Other Taxes were calculated in tax year 2018.
Starting in tax year 2019, Schedules 2 and 4 are combined on to a single Schedule 2. Line numbers have also been rearranged.
Amounts on this schedule included the self-employment tax, additional tax on qualified retirement plans from form 5329, repayment of first-time home buyer credit from form 5405, and the individual responsibility payment.