When adding self-employment income to my tax return, the section that says "Self-employment commissions from T4A slips - boxes 20 or 48" is 0.00 and cannot be edited (I have a number in Box 020 on my T4A). When i input the number into the box at the top which says "Total revenue amount" and continue, it classifies it as "Income not on a slip". Should I be able to edit the"0.00" under the "Self-employment commissions from Box 20"? Or so I submit it as "Income not on a slip", even though it is on my T4A? Any insight is helpful.