r/technicaltax • u/No_Survey_7610 • 2h ago
Amending 1120-S
I'm amending an 1120-S for a client after the previous accountant had made several mistakes including leaving off ~150k in expenses. I'm not 100% sure on how they categorized ever expense so for some of the lines it may just be moving the expense (for example, I may consider something office expense that they listed as advertising). Because of this, in what I currently have prepared just about every line is different, but overall it's ~150k lower in income. Do I have to make an explanation for every single line of the return?
I know on the IRS website they say "Attach to the amended Form 1120S/1120-F, the XML document, AmendedReturnChanges, that identifies the line number of each amended item, description, the amount on the previous return, the amount on the amended return, and an explanation of the reasons for each change." But I just wanted to check to see if anyone else has had experience with something like this before add ~30 explanations to the statements.