Can I claim child care paid by cash if I don't have their social security number?

[Vanessa A]

Yes.  But you will need to show that you have attempted to get it from them and they would not give it to you.  

Yes, you may still claim the child and dependent care credit when you're missing the provider's Soci....

Claim the childcare expenses on Form 2441, Child and Dependent Care Expenses and provide the care provider's information you have available (such as name and address). Write "See Attached Statement" in the columns corresponding to the missing information. Explain on the attached statement that you requested the provider's identifying number, but the provider didn't give it to you. This statement supports the exercise of due diligence in trying to secure the identifying information for the claim.