Stimulus package

Your stimulus payment will likely go to the bank account where their last tax refund was deposited.

The only way to update your account information is to file your 2020 Federal 1040 tax return.  Your eligibility will likely be based on the information in your return, and your stimulus check will be sent to the bank account you used for your refund or mailed to your address on file.

This TurboTax Help states:

Why is the IRS Get My Payment tool showing bank account information that is different from my 2020 tax return?

The IRS is using a taxpayer’s last processed tax return (either 2019 or 2020) to determine eligibility and where to send stimulus payments. Their stimulus payment will likely go to the bank account where their last tax refund was deposited. For those who did not have a refund or did not choose direct deposit for their refund, the stimulus payment may be sent by check. 

In some cases, the IRS may not have processed the taxpayer’s 2020 tax return yet. Payment to those taxpayers may be issued to the account on their 2019 tax return. 

If the bank information is invalid or the account has been closed, the bank will return the payment to the IRS and the IRS will mail it to the taxpayer by check at the address they have on file.

Perhaps this IRS information will be helpful.

This IRS FAQ My payment was mailed but my post office was unable to deliver it. states:

Once we receive your payment back, you may be able to provide your bank account information in Get My Payment to have your payment reissued as a direct deposit.

If this is the case, then Get My Payment will show “Need More Information,” usually two to three weeks after the payment is issued. At this point, you can enter a routing and account number for your bank account, prepaid debit card or alternative financial product that has a routing and account number associated with it.

If you do not provide account information, your payment will be reissued when we receive an updated address.

If you need to update your address, the easiest way to do it is by filing your 2020 tax return with your current address, if you haven’t already done so. The fastest way to file the return and update your address is to file the return electronically.