No problems at all. I didn't do the IUP, I did the straight Apple Card installment plan since I pass on my iPhone to a family member whenever I get a new one. It shows on my account as an "Installment Balance" when I go to the "Balance Details" screen. AC did a separate debit for taxes and the rest is under the "Installment Balance."Nice! Are you one of the folks who had no problems using the Apple Card? I had the glitch, and they are supposed to be sending me an email in the next few weeks on how to get the cash back I missed out on. Nice that they are honoring it for us.