Originally Posted by
Need
I am not sure why it would be better? Unless his sister needs a credit card for other uses, I would think it is better for him to just use his credit card to pay for her Global Entry Fee. Credit card doesn't know/care who is getting the Global Entry, and Global Entry doesn't care who paid the Fee.
Even though it will be billed to his account, and BoA will never know who made the charge, if it has his name on the credit card GE might refuse it if he is not present to authorize it.