Understanding your IRS CP501 letter
https://www.irs.gov/individuals/understanding-your-cp501-notice
Did the IRS say what they changed on your Schedule A to make it less than the Standard Deduction? I would check your IRS online account or call them to find out what they changed.
I guess to amend you would first have to amend to match the IRS. Like take out some deductions or say you want to take the Standard Deduction. Or just change your original return to match the IRS. Be careful not to file this new return. Don't efile it. Say you want to mail it, since you mailed the original return.
BUT first be sure to save a copy of your original return pdf file and .tax2024 file. THEN you can amend to add the schedule A back in.
