So confused:
I have not yet paid my original amount due for 2019 Federal taxes.
I determined I owe more and wanted to send 1 check for the full amount.
On 1040X it says to send the form to Fresno CA as well as the EXTRA payment.
On 8453 it says to send that form and 8949 documentation to Austin TX.
I wanted to confirm where I should send my full payment to and if I really need to send these forms to different IRS addresses.
Thanks
