Did you file already ?
If you check option D on form 2210 Part II and supply the information you may reduce or eliminate your penalty.
HOWEVER,
When amending, IRS says:
"Subtract any penalty from the amount you owe reported on original 1040.
Don't try to include, but ignore, any new or changed penalty."
IRS will calculate your new penalty on their own taking your revised Form 2210 Line 19 into account and will refund you.
@Wjm2222
