Are you asking about the federal stimulus checks that were issued for 2020 and 2021?
Your eligibility for the stimulus money—-now available as the recovery rebate credit— will depend on your circumstances in 2020 and/or 2021. If you could be claimed as someone else’s dependent in 2020 or 2021, you are not eligible for the recovery rebate credit now.
The first stimulus checks were issued in 2020; the first one was for $1200 for adults and $500 for qualified children dependents under the age of 17. The IRS was in a hurry to send out those checks so they sometimes used information from your 2019 return to send out the check. Or sometimes they sent it after you filed your 2020 return.
The second stimulus was sent in late 2020 or early 2021; that one was $600 per adult and $600 for qualified children dependents under the age of 17.
The 3rd stimulus check was $1400 for adults and $1400 for any dependent you claimed, and was sent out in 2021.
If you did not receive the first or second stimulus check,—Sorry—it is too late. The deadline to file a 2020 tax return and get that credit was May 17, 2024.
If you did not receive the 3rd stimulus check, you can get it by filing a 2021 tax return and use the recovery rebate credit in Federal Review. The stimulus amount will show up on line 30 of the Form 1040.
Check your own bank account for deposits of the stimulus checks, and check your online account with the IRS to see what the IRS shows they sent to you.
Try checking your online account with the IRS (and if you filed a joint return—check for BOTH of you)
https://www.irs.gov/payments/your-online-account
If you need to trace a payment that the IRS says has been issued to you, mail or fax a completed IRS Form 3911, Taxpayer Statement Regarding Refund.