Line 3 Business Income or Loss Amount Check for Schedule CFigure 3.11.14-29 shows an example of editing Line 3 as described above. Pictured is the top half of a completed current year Form 1041 and a folded Schedule C. The Form 1041 shows the amount of 1200 dollars on line 3 (business income or loss) with an arrow pointing to the dollar amount. The folded Schedule C shows the name and EIN of proprietor; and lines 29, 30 and 31 totaling 1200 dollars. An arrow is pointing to the 1200 dollars which supports the amount on Form 1041.In after Schedule C is a text box that reads The taxpayer may attach Schedule C.