Receiving Your Payment by Direct Deposit
If the IRS has information about your Self-Help Federal Credit Union account, then the IRS will deposit the payment directly into the account. The IRS could have that information from your 2019 or 2020 tax return and/or the account number used in the previous stimulus payment program.
You can check your account using online, mobile, or audio banking to see whether the deposit has been made. The payment will appear in your account summary as “IRS TREAS 310 XXTAXEIP3” or something similar.
If the IRS sends your payment via direct deposit, then you do not need to do anything. You can use the IRS's Get My Payment tool to check the status of your payment.