great thank you. I understand w4 is for withholdings for employer. The information link you provided said "The maximum amount of qualified expenses that can be used in computing the credit is $6,000." So am putting $6,000 in option? Below is my layout for w4 online for filling.
Number of dependents under the age of 17
Number of other dependents
Other tax credits (such as education tax credits and the foreign tax credit)
$
