After you file

Or do you need to know how to pay?  You can pay on the IRS site:<a rel="nofollow" target="_blank" href="https://www.irs.gov/payments">https://www.irs.gov/payments</a>
Or mail in the 1040V voucher with a check or money order.  Write your Social Security number on your check and note that it is for 2018 tax due.
 Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS received the payment.
**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.**