Can I schedule an online payment (to pay my credit card bill, not to purchase anything) to take place on shabbos?
Answer:
It is permitted to scedule an online payment on Shabbos. However, actual “acquisitions” of particular items should not be made on Shabbos, but during the week. Therefore, if, as the question notes, the matter is only a credit-card payment, there is no halachic problem involved.
Sources: Authorities dispute the status of making an acquisition in advance that will take effect on Shabbos. However, in this case there is no acquisition, and therefore there would be no such issue involved.
