Installment Sale Indicator CodeFigure 3.11.14-13 shows an example of editing an Installment Sale Indicator as described above. Pictured is the top portion of Form 6252, Installment Sale Income, and the top half of a completed Form 1041. Form 6252 shows an arrow pointing to line 3 (Was the property sold to a related party (see instructions) after May 14, 1980? If No, skip line 4). An arrow is pointing to the marked No box. Based on the answer to the questions answered on Form 6252, an Installment Sale Indicator 2 is edited in the left margin next to Line 10 (Interest) on Form 1041 in 6 - 2 format.