Did you already e-file? If you did NOT e-file you can go to the FILE section and change how you want to receive your refund. If you want direct deposit you need the routing number and your own account number.
You cannot change banking information while your return is in pending, nor can you change it after the return is accepted. The IRS does not allow it.
**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.**