After you file

If you owed tax due you will not see anything about your tax return on the IRS "Where's My Refund" site.  You can pay your tax due by going to the IRS direct pay site.  Or you could mail in the 1040V voucher that printed out with your return and enclose a check or money order.

 

https://www.irs.gov/payments

 

Since you are paying late, you can expect a bill later for the penalty and interest you will owe.  The IRS will bill you.

**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.**