If the amended return shows "amount you owe", you have to pay it since it is after Tax Day.
It takes them so long to get to your 1040-X the IRS will send the payment back to you as overpayment for 1040.
even if you write "For 1040-X" on your check.
Then you have to pay again when you amend.
This makes it impossible to pay now to reduce penalties and interest.
