The pay by phone number for paying tax is (254) 221-9513. Because our Erath accounts have leading alphanumeric, we removed them for ease. However, there will be time there may be an account that is P12345 and R12345. In that case, the system will ask for a secure number. That secure number will be the same code for e-statement that is printed on statements. You can also obtain that code by clicking on Email in NetTax. The Secure Number will be at the bottom middle-left of the popup.