Here is some information put out by IRS:
The IRS has indicated they’re using the latest taxpayer information they have on file to issue the third stimulus payment. That means they are sending your stimulus payment to one of the following:
- Bank account information from the direct deposit of your 2019 or 2020 tax refund,
- Bank account information you entered on your non-filer registration in 2020,
- Bank account information you entered on Get My Payment before December 22, 2020, or
- Banking information used by a federal agency that provides you benefits such as the Social Security Administration, Veteran Affairs, or the Railroad Retirement Board.
If you didn’t update your information with the IRS, they will issue your payment using the latest information they have in your file, not the information you provided to the TurboTax portal.
In addition, here are a couple of links that you can go to to get information on your refund and the third stimulus check:
Third stimulus check information link:
Get my payment
Tax return refund:
Where's my refund