If you have already filed your tax return you cannot change the banking information. If you are not getting a refund, then you do not have to enter banking information. Banking information is entered so that you can receive a direct deposit. if you are not getting a deposit, you do not have to enter information for one.
Or...did you enter information for a direct debit to pay tax due.....and now you want to change that or reschedule the payment? What are you trying to do?
**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.**
