If you have already filed and submitted your tax return you are unable to edit the bank account information once the return has been accepted. If your return has been filed and submitted and rejected then you are able to change the information, just follow the steps above.
If the IRS is unable to deposit your refund into your account, they will mail you a refund check.
There is a great FAQ that explains this further:
Once your return has been accepted (or mailed), it's too late to change your bank account for direct deposit.
If the info you provided is for a closed or invalid account, the government will mail you a refund check.
If the info you entered is someone else's account, don't worry – some banks won't deposit tax refunds into accounts where names don't match up. The best way for you to track your federal refund is to call the IRS at 1-800-829-1040.
If your recently-filed return is in pending status, wait until it's either accepted or rejected.
If rejected, you can update your account and any issues that caused the rejection. Open your return in TurboTax and go through the File section again to update your bank account before re-submitting your return.
If accepted, you'll get your refund check in the mail.
