Q: Family Sharing, Ask to buy and iTunes cards

Hey there jccamp95,

Your son will be able to redeem the iTunes Gift Card and it will apply to his Apple ID in the iTunes Store. Take a look at this info from the following article about Family Sharing payments and billing:

Family purchases and payments

After you set up your family, any time a family member initiates a new purchase it will be billed directly to your account unless that family member has gift or store credit. First, their store credit will be used to pay the partial or total bill. The remainder will bill to the family organizer's card. As the family organizer, any receipts generated by the transaction will be sent to you. Learn more about how iTunes Store purchases are billed.

 

Once paid for, a purchased item is added to the account of the family member who initiated the purchase. In other words, the content belongs to them, much as it would if you were buying them a book or a DVD. If Family Sharing is ever disabled, each member will keep the purchases they initiated, even though they were paid for by the family organizer.

Thank you for using Apple Support Communities.

Cheers,

Sterling