How do I I change my bank account information for direct deposit

[Bsch4477]

If you had your return accepted by the IRS you can’t change that information. 

[xmasbaby0]

If you have not yet e-filed:

You have to go to Step 2 in the FILE section.

HOW TO CHANGE OR ENTER BANKING INFORMATION FOR REFUND

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/change-transferred-direct-dep...

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.