After you file

@alonkut Sounds like you got confused and mixed up the letters you received.   Letter 6419 was for advance child tax credit payments that you received between July and December---the payments of $250 or $300 per month per child that was paid in advance.   You had to enter that and then you could get the other remaining part of the child tax credit as part of your refund.   It would have been on line 28 of your tax return.

 

Letter 6475 shows the amount of the 3rd EIP---"stimulus" check of $1400 per person that was sent to you sometime after mid-March.   You had to enter that correctly for the recovery rebate credit in Federal Review.   If you said you did not receive the stimulus check then it put an amount on line 30 of your tax form.   If you really did receive that money, the IRS knows you got it.   They remove it from your refund---which would explain your $1400 shortage. 

 

 The stimulus check had nothing to do with the child tax credit, nor does it have anything to do with Form 8812.

 

If you are not sure what you received last year, check your own bank account for deposits of $1400 per person and for deposits of $250 or $300 per month for your children.   And check your IRS online account.

 

 

https://www.irs.gov/payments/your-online-account

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**