General Instructions
Use Schedule 2 if you have additional taxes that can’t be entered directly on Form 1040, 1040-SR, or 1040-NR.
Include the amount on Schedule 2, line 3, in the total on Form 1040, 1040-SR, or 1040-NR, line 17.
Enter the amount on Schedule 2, line 21, on Form 1040 or 1040-SR, line 23; or 1040-NR, line 23b.