Can I change my invoice date?
At this time, OpenAI does not support changes to invoice dates. All billing cycles and invoice generation schedules are fixed based on your subscription type.
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ChatGPT Subscriptions
Billing occurs on a monthly basis from the date you subscribed.
For example, if you subscribed on the 12th of the month, you will be billed again on the 12th of each following month.
Invoice dates align with this recurring schedule and cannot be modified.
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API Usage (Pay-as-you-go)
Invoices are issued monthly, covering the previous calendar month's usage.
Example: An invoice for usage during March will be generated and issued in April.
All API billing is postpaid and calculated automatically.