When is my payment due date? 10 August 2022 02:20 Updated Your payment due date is 15 calendar days after your billing date. If it falls on 29th, 30th or 31st, the date will be auto adjusted to 1st, 2nd or 3rd. of the subsequent month. Related articles Can I pay earlier? How do I make payment to my card account? When is my billing date? What is an auto-deduction? Do you charge any fee for Atome card?