You owe federal tax? If you e-filed you do not need to mail in the Form 1040SR. That was done electronically. When you send in a payment just use the 1040V voucher and mail it with your check. Write your SSN on the check. The 1040V has the address on it for you to use for mailing. I recommend using certified mail to send it so you will know it was received.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
