I filed 2021 taxes and never received the 1400$ rebate

[xmasbaby0]

TurboTax does not know who will receive the stimulus checks that the IRS is sending.   The IRS has identified some people who were eligible for the 3rd EIP payment who did not receive it and did not use the recovery rebate credit on their 2021 tax returns, so the IRS is sending out those payments.   You should check your online account with the IRS---many people received the 3rd stimulus before they filed their 2021 return, so they did not need to use the credit on their tax return.

Look at your online account with the IRS to see if they sent you $1400 in 2021.

https://www.irs.gov/payments/your-online-account

If you could be claimed as someone else's dependent in 2021, you are not eligible for the payment.

If you were eligible and did not receive the EIP payment you can amend your 2021 return ---it must be mailed by April 15 2025 or it will be too late.

[DoninGA]

First, see if the IRS ever issued you the stimulus payment in 2021.  Go to this IRS website and sign onto your tax account - https://www.irs.gov/payments/online-account-for-individuals

If the EIP3 payment of $1,400 was not issued by the IRS then you will need to amend your 2021 tax return and complete the Recovery Rebate Credit section of the federal tax return.  The 2021 tax return has to be printed and mailed to the IRS on or before April 15, 2025 to receive the credit.

See this TurboTax support FAQ for amending a prior year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...