I apologize for reaching out again. I have a question regarding line 18 on Form 1040X. In tax year 2022, I owed the IRS $2000, which I have already paid. However, after including a -$3000 capital loss on Form 1040X, I'm unsure what number to put on line 18. If I enter 0 on line 18 and my updated "amount you owe" is $1700, do I need to attach a cover letter to explain that I already paid $2000 on my original tax return and should receive a $300 check for the included capital loss? Alternatively, should I put -$2000 on line 18, then input $300 on lines 21 and 22? Thanks!
