How do I change my payment method if it is under a family sharing?

If you're the organizer, put a new one in and then remove the old one as described in the Related Article above.

If you're using a subaccount, you can't put in your own method, except for redeeming gift cards.

(217824)

I need to change my payment method and I had made my husband the organizer. Do I need his iPhone to make these changes?

Except for redeeming gift cards, the change would need to be made from his account.

(218618)