To be brought to the Child and Dependent Care section, in the search field at the top of the screen in TurboTax, search for this exact phrase: child care credit and then, at the top of your search results, select the "Jump to" link and you will be brought to the section of TurboTax to enter your child and dependent care expenses.
If you are also thinking of the Child Tax Credit, that amount is calculated behind the scenes and will be reported on your tax return if the eligibility requirements are met. See more information below:
