I want to know if I filed the additional child tax credit how can I see if I did because I don't remember agreeing to that this year

[Hal_Al · Accepted solution]

The  "Additional Child tax credit" (ACTC) is on line 43 of form 1040A or line  67  of form 1040.  

You don't choose or "agree to" the ACTC.

The child tax credit  (CTC) is  limited to your tax liability. The CTC is a non-refundable credit and can only reduce your income tax to 0, It can not help you beyond eliminating your tax liability. But, if you have more than $3000 of earned income, some or all of it is usually given back to you thru the "Additional Child tax credit". That is, part of the CTC may be on line 43 of form 1040A instead of line 35 (lines 67 & 52 of form 1040).    In the on-line version of TT,  the  main Form 1040, 1040A or 1040EZ can be seen through Tools, View Tax Summary, Preview My 1040 or  go to Print Center and then choose to Preview. The ACTC is calculated on form 8812; that form is not viewable in the online version of TT until you have paid for your return. But, the ACTC is basically 15% of your earned income over $3000.

[Hal_Al]

Why are you asking?
You cannot just agree to let the other parent claim the "Additional Child tax credit".
 There is a special rule in the case of divorced & separated (including never married) parents. When the non-custodial parent is claiming the child as a dependent/exemption/child tax credit; the custodial parent is still allowed to claim the same child for Earned Income Credit, Head of Household filing status, and day care credit.

 This "splitting of the child" is not available to parents who lived together at any time during the last 6 months of the year; then only one of you can claim the child for any tax reasons. The tax benefits may not be split in any other manner.

Note in particular that the non-custodial parent can never claim the Earned Income Credit, Head of Household filing status or the day care credit, based on that child, even when the custodial parent has released the exemption to him.

Ref: <a rel="nofollow" target="_blank" href="http://www.irs.gov/publications/p17/ch03.html#en_US_2014_publink1000170897">http://www.irs.gov/publi...>