@Lcunnin1 - most likely, the issue has to do with the Recovery Rebate Credit or the Child Tax Credit. If you answer the following I can probablt help you understand what happened>
1) what is on Line 28 of Form 1040?
2) what is on Line 30 of Form 1040?
3) what is the EXACT amount of the IRS adjustment? Please confirm it was $6221.
I am going to bet this relates to your children and the Child Tax Credit
4) what is the age of each child as of 12/31/21?
5) what is on line 14f for Form 8812?
I think i can help.
