Form 2441 is used to claim the Child and Dependent Care Credit on your federal return. You report your childcare provider's name, address, and tax ID, along with the expenses paid. If you also have a Dependent Care FSA, that's reported here too — FSA benefits reduce the expenses eligible for the credit. The form calculates your credit based on your income and qualifying expenses. Having your provider's tax ID (EIN or SSN) is required to claim the credit.