@Taxdragon29 Are you only asking about the 2021 payments or for 2020 too? Did you get the first and second stimulus payments for 2020 for you and the kids? If you didn't, it should have been added on your 2020 return line 30 for the Recovery Rebate credit. Did you get it? Check your 1040 line 30. Otherwise you need to amend your 2020 return. But it sounds like you are not asking about the 2020 stimulus payments.
If you are only asking about the 3rd Stimulus Check that went out in 2021 - yes if you didn't get it you can claim it on your 2021 return if you qualify (if your income isn't too high). Same for the Child Tax Credit.
