The Earned Income Credit (EIC) changes every year.  

In 2020 the Maximum Earned Income Credit for families with 4 or more children was $6,660.

In 2021 the Maximum Earned Income Credit for families with 4 or more children is $6,728. If you have 3 or fewer children the credit is reduced. In either case, the tax credit is worth looking into. If you would like help calculating the tax credit let us know, and we will prepare your tax return to ensure that you receive the correct of amount of Earned Income Credit that is due to you.      

FYI

In 2022 the Maximum Earned Income Credit (EIC) for families with 4 or more children is $6,935.