After you file

@Carbcycle You cannot use TurboTax to change your banking information. if you already filed your 2020 tax return.  The only time you can enter/edit banking information here is when you are getting ready to file a tax return.   As for future stimulus payments---there are no future stimulus payments being planned at this point.   Only an act of Congress could provide another stimulus payment.    As for the monthly child tax credit payments----if that is what you are worried about, there will be a portal on the IRS site where you can update your banking information for the CTC payments that begin in July, but the portal is not available yet.

**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.**