Why is my daughter's iPhone continuing to charge purchases to my account? I gave my iPhone 4 to my daughter and she keeps charging to my Apple account. She signs in with her own Apple ID, but I keep getting charged for apps she is buying.
Go to app store, then at the bottom of the Featured page you will see the Apple ID which is used in it. She might still be using yours.

Signing with her Apple ID to iCloud is not related to the store. Your account might still be there.