How can i find out how I can change my bank account & payment method here?

[xmasbaby0]

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.

[DoninGA]

The bank account and routing number for either direct deposit or direct debit is in the File section of the program in Step 2.