I have a question on how to change my direct deposit for IRS

[bluedeb · Accepted solution]

Your bank information for 2019 cannot be changed once your return has been accepted & processed.  When you file your 2020 tax return, you can change your banking information when you go through the steps to file your return.  The IRS will most likely use information from your 2019 return.  If your banking information is incorrect, you will automatically be switched to receiving a check.  

[DoninGA · Accepted solution]

Once a tax return has been filed the bank information cannot be changed.

When you file the 2020 federal tax return you can enter the bank routing and account number for a direct deposit of a federal tax refund in the File section of the TurboTax program.

See this IRS website concerning the stimulus  - https://www.irs.gov/newsroom/treasury-and-irs-begin-delivering-second-round-of-economic-impact-payme...