Hey @lmareth,
A warm welcome to the QB community! Happy holidays.
If you've already imported the invoices and are now working through QuickBooks Online, you can change the general due date for all of your invoices by (1) clicking the gear icon, (2) going to the Sales Tab, (3) clicking the pencil icon to edit the "Sales form content" section and (4) the setting new preferred invoice terms. This should make the dates match.
Try this out, create an invoice and let me know if you are still experiencing the issue.
