For 2020 I claimed my three children and received the stimulus child tax payments. 2021 dad claims kids. IRS form is in my name. How does this effect each return?

If you received the advance CTC payments between July and December you have to enter the amount you received on your own tax return.   Depending on your 2021 income, you may or may not have to pay it back if you are not claiming the children for 2021.   The parent who is claiming them on a 2021 return can get the full amount.

TurboTax calculates the Repayment Protection.  This determines if a person is required to repay the advance CTC.

What is Repayment Protection?

Repayment protection is an income-based program that reduces the amount of excess advance Child Tax Credit payments you have to repay.

Full repayment protection equals $2,000, multiplied by the following:

• The number of qualifying children that the IRS took into account when estimating your advance Child Tax Credit payments, minus
• The number of qualifying children you’re claiming on your 2021 tax return.

To be eligible for full repayment protection, your adjusted gross income (AGI) for the 2021 tax year must be at or below the following:

• $60,000 if you are married and filing a joint return or if filing as a qualifying widow or widower;
• $50,000 if you are filing as head of household; and
• $40,000 if you are a single filer or you are married and filing a separate return. 

 You won’t qualify for any repayment protection if your modified AGI is at or above the amounts listed below based on the filing status on your 2021 tax return.

• $120,000 if you are married and filing a joint return or if filing as a qualifying widow or widower;
• $100,000 if you are filing as head of household; and
• $80,000 if you are a single filer or are married and filing a separate return.

For information on the definition of modified AGI, see Topic C: Calculation of the 2021 Child Tax Credit.