Get your taxes done using TurboTax

To verify if you have claimed the child as your dependent, please check your Form 1040. 

On the Form 1040 front page, you should not have anybody as dependents on your Form 1040.  As far as Earned Income Credit, without claiming the dependent, you should still get it.  It will show on line 18a.  Please see the images below:

If you have already filed and claimed the dependent, you might need to amend your taxes.  Please continue to read:

If you have already filed, you might not be able to go back to fix.  You can return to the program to make corrections without amending only if your return is being rejected. If your return is accepted, to edit your information, you will have to amend it. You cannot just go back to edit.

If your return got rejected for any reason, you can return to the program to edit information along with other changes and re-submit it. For instructions, click here Fix a reject 2019.  You do not need to file an amendment 1040-X.

If your return has been accepted, you will have to amend by filing a Form 1040-X.  Click here for instructions Amend 2019.   Please note that the 2019 Form 1040-X is not available until 2/26/2020.  Please come back later.  Also, be aware that you should not try to amend your return until it has been fully processed and you have received your refund or your payment has cleared.  If by editing the information does not change the refund or amount you owe, you do not need to submit the amendment. 

@ZozoEspinoza