Additional tax owed

[Work2play]

Received a notice from IRS that I owe additional taxes due to an error on my return. The notice says there was an error on form 8812 child tax credit. 

[Bsch4477]

It is likely that you did not report advanced child credit in an amount that the IRS believes you received. 

[Work2play]

I reported the $750 I received. My ex-wife received the rest of the money. Turbo tax did not include any of it.

[SweetieJean]

See if any of this helps:

IRS updates the 2021 Child Tax Credit and Advance Child Tax Credit frequently asked questions

[Bsch4477]

Did you claim a dependent on your 2021 return?